Disclosure of utility model
The application aims to solve the technical problems of ditch checking and cleaning operations and smoke dust sealing at least to a certain extent, and therefore, the application provides the openable smoke dust sealing cover plate which can optimize the existing cover plate structure, can facilitate the ditch checking and cleaning operations, can keep a certain effect of the sealing smoke dust, finally achieves the aims of environmental protection and safe tapping, and can obviously reduce the hoisting workload and improve the hoisting efficiency in the operation of maintaining the slag iron ditch.
The embodiment of the application provides an openable smoke sealing cover plate, which comprises a main body cover plate and an auxiliary cover plate, wherein the main body cover plate and the auxiliary cover plate are used for sealing the top of a metal slag trench, the auxiliary cover plate is used for being spliced with the main body cover plate, a seam of the main body cover plate and the auxiliary cover plate at the splicing position is a bending seam, the main body cover plate and the auxiliary cover plate are attached at the seam, when the metal slag trench is sealed, the main body cover plate and the auxiliary cover plate are arranged in a staggered manner along the arrangement direction of the metal slag trench, and when the metal slag trench needs to be opened, the auxiliary cover plate can be separated from the main body cover plate so as to expose the interval between the adjacent main body cover plates.
In an alternative embodiment, when the metal slag trench is closed, the length direction of the main body cover plate and the auxiliary cover plate is consistent with the arrangement direction of the metal slag trench, and the distance between the two ends of the top of the main body cover plate is smaller than the distance between the two ends of the bottom of the main body cover plate in the length direction, and the distance between the two ends of the top of the auxiliary cover plate is larger than the distance between the two ends of the bottom of the auxiliary cover plate.
In an alternative embodiment, the length of the main body cover plate is greater than the length of the sub cover plate in the length direction.
In an alternative embodiment, the main cover plate and the auxiliary cover plate form a plurality of sections of contact surfaces which are opposite to each other at the joint, and at least one pair of contact surfaces are filled with sealing elements so as to block smoke dust entering from one side of the bending joint.
In an alternative embodiment, the seal is a refractory filled layer structure having flexibility.
In an alternative embodiment, the contact surface comprises at least three sections, the bending angle between adjacent sections is equal to or greater than a right angle, and the sealing element is filled in one section at the middle position.
In an alternative embodiment, the device further comprises a casting part, wherein a cavity is formed in the main body cover plate and/or the auxiliary cover plate, and the casting part is filled in the cavity.
In an alternative embodiment, the device further comprises a reinforcing rib arranged in the cavity, and the reinforcing rib divides the cavity into a plurality of chambers.
In an alternative embodiment, the casting parts include a first casting part and a second casting part, the first casting part is filled in the middle of the cavity along the length direction, the second casting part is filled at two sides of the middle of the cavity along the length direction, the first casting part is a structural part formed by casting material parts resistant to more than 800 ℃, and the second casting part is a structural part formed by casting.
In an alternative embodiment, the longitudinal section of the main cover plate in the length direction is in an inverted T shape, and the longitudinal section of the auxiliary cover plate in the length direction is in a T shape.
According to the technical scheme, the beneficial effects of the application are as follows:
According to the application, the cover plate is divided into the main body cover plate and the auxiliary cover plate which are arranged in a staggered manner, the top of the metal slag ditch is sealed by the main body cover plate and the auxiliary cover plate together, and the joint of the main body cover plate and the auxiliary cover plate adopts the bending joint, so that the upward and downward flowing resistance of the joint is remarkably increased, the sealing effect on smoke dust is further enhanced, the problem that the smoke dust adopting the joint structure overflows greatly from the joint is solved, a separable structure can be formed between the main body cover plate and the auxiliary cover plate, when the metal slag ditch needs to be opened, the auxiliary cover plate is only required to be moved away, the metal slag ditch is in an opened state, the main body cover plate still seals the metal slag ditch, the sealing effect can be kept to a certain extent, the smoke dust overflow amount is reduced, and the thickness of the auxiliary cover plate is transferred, so that the metal slag ditch can be directly operated, and therefore, the problems of ditch checking, ditch cleaning operation and smoke dust sealing operation are solved, the existing cover plate structure is optimized, the ditch checking operation can be convenient, a certain sealing smoke dust effect can be kept, finally, the purposes of environmental protection and safe iron tapping are achieved, and the hoisting work efficiency can be remarkably reduced in maintaining the iron slag lifting work.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all the directional indicators in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.
In the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "fixed," and the like are to be construed broadly, and for example, "fixed" may be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The application is described below with reference to specific embodiments in conjunction with the accompanying drawings:
Referring to fig. 1 and 2, an embodiment of the present application provides an openable smoke sealing cover plate, which is applied to various metal slag trenches, and is illustrated in the field of blast furnace ironmaking, where the metal slag trench is a slag iron trench, and the smoke sealing cover plate 100 includes a main body cover plate 110 and an auxiliary cover plate 120 for closing the top of the metal slag trench, where the auxiliary cover plate 120 is used for splicing with the main body cover plate 110, and when the main body cover plate 110 and the auxiliary cover plate 120 are spliced, the main body cover plate 110 and the auxiliary cover plate 120 are in flush joint, and the seam 101 at the splicing position is a crease seam, for example, the end of the main body cover plate 110 and the end of the auxiliary cover plate 120 are both in a wave form, a multi-step form, and the main body cover plate 110 and the auxiliary cover plate 120 are in butt joint at the seam 101, for example, the end of the main body cover plate 110 and the auxiliary cover plate 120 are in a perfect match shape, and the seam 101 is smaller, and can be mutually clung on a contact surface at the splicing position, so that the sealing effect at the seam 101 is improved; when the metal slag trench is closed, the main body cover plate 110 and the auxiliary cover plate 120 are arranged in a staggered manner along the arrangement direction of the metal slag trench, the main body cover plate 110 and the auxiliary cover plate 120 are used for closing the metal slag trench, the main body cover plate 110 and the auxiliary cover plate 120 are sequentially spliced in a staggered manner to form multiple sections, and when the metal slag trench needs to be opened, such as trench checking and trench cleaning operation, the auxiliary cover plate 120 can be separated from the main body cover plate 110, and as the auxiliary cover plate 120 is only spliced with the main body cover plate 110 at the end part, the auxiliary cover plate 120 and the main body cover plate 110 are not fixedly connected, so that the auxiliary cover plate 120 can be separated from the main body cover plate 110 in a hoisting manner to expose the interval between the adjacent main body cover plates 110, and the slag checking and the slag cleaning operation can be performed through the interval.
The prior art does not have a cover plate with functions of checking and cleaning the ditch and sealing smoke dust, because the cover plate has better effect of sealing the smoke dust if adopting an integral forming piece, but can not check and clean the ditch of the metal slag ditch, because the whole cover plate needs to be lifted to expose the ditch of the metal slag, the lifting exposed area is large, and a large amount of smoke dust can overflow, and if the cover plate is designed into a more splicing structure, one or some of the cover plates can be conveniently detached for checking and cleaning the ditch, but the cover plate has no better effect of sealing the smoke dust, because of more splicing or lap joint, the splicing seam 101 has more gaps, so that the smoke dust is easy to overflow from the gaps, and the sealing effect is poor. According to the application, the cover plate is divided into the main body cover plate 110 and the auxiliary cover plate 120 and is arranged in a staggered manner, the top of the metal slag trench is sealed by the main body cover plate 110 and the auxiliary cover plate 120, and the joint of the main body cover plate 110 and the auxiliary cover plate 120 adopts a bending seam, so that the up-and-down flowing resistance of the joint 101 is remarkably increased, the sealing effect of smoke dust is further enhanced, the problem that the smoke dust adopting the joint structure overflows greatly from the joint 101 is solved, a separable structure can be formed between the main body cover plate 110 and the auxiliary cover plate 120, when the metal slag trench needs to be opened, if the trench is to be checked and cleaned, only the auxiliary cover plate 120 is required to be moved away, the metal slag trench is opened, the main body cover plate 110 still seals the metal slag trench, the sealing effect can be maintained to a certain extent, the overflow amount of smoke dust is reduced, and the metal slag trench is exposed, and the operation can be directly performed.
Referring to fig. 3, in an alternative embodiment, when the metal slag trench is closed, the length direction of the main body cover plate 110 and the auxiliary cover plate 120 is consistent with the arrangement direction of the metal slag trench, such as the left-right trend in the figure, the distance between the two ends of the top of the main body cover plate 110 is smaller than the distance between the two ends of the bottom in the length direction, the distance between the two ends of the top of the auxiliary cover plate 120 is larger than the distance between the two ends of the bottom, during slag searching and removing operations, the auxiliary cover plate 120 needs to be lifted and moved away, the auxiliary cover plate 120 forms a structure with a wide top and a narrow bottom, the auxiliary cover plate 120 can be lifted and moved smoothly from the side of the main body cover plate 110 without affecting the main body cover plate 110, and because the auxiliary cover plate 120 and the main body cover plate 110 are spliced in a staggered manner, the design can be combined with the design of a bending joint, such that the main body cover plate 110 and the auxiliary cover plate 120 are designed into a three-stage structure at the end.
In an alternative embodiment, in the length direction, the length of the main cover plate 110 is greater than the length of the auxiliary cover plate 120, so as to improve the application effect, the length of the main cover plate 110 may be designed to be significantly greater than the length of the auxiliary cover plate 120, so long as the operations of checking and cleaning ditches can be performed normally, for example, the length of the auxiliary cover plate 120 is half of the length of the main cover plate 110, and the shorter the length of the auxiliary cover plate 120, the better the smoke sealing effect of the smoke sealing cover plate 100 is, and in addition, the longer the length of the main cover plate 110, the fewer the number of auxiliary cover plates 120 at the same distance is, so that the lifting times of the auxiliary cover plate 120 can be reduced, and the lifting workload of transferring the auxiliary cover plate 120 is also reduced.
In an alternative embodiment, the longitudinal section of the main body cover plate 110 is in an inverted T shape in the length direction, the longitudinal section of the auxiliary cover plate 120 is in a T shape in the length direction, so that the main body cover plate 110 and the auxiliary cover plate 120 can be in a T-shaped vertical dislocation embedding at the splicing position in the arrangement direction of the metal slag trench, and the auxiliary cover plate 120 is in a T shape, so that the auxiliary cover plate 120 can be smoothly lifted away from the side of the main body cover plate 110 without affecting the main body cover plate 110, the main body cover plate 110 always keeps sealing the metal slag trench, and the effect of sealing smoke dust is still certain when the trench checking and cleaning operation is performed.
Referring to fig. 4, in an alternative embodiment, the sealing member 130 is further included, the main cover plate 110 and the auxiliary cover plate 120 form multiple sections of contact surfaces with opposite positions at the joint 101, the contact surfaces refer to opposite surfaces of the main cover plate 110 and the auxiliary cover plate 120 at the butt joint positions of the ends, as the joint 101 is a bending joint, two pairs of contact surfaces are formed when the joint is bent once, at least one pair of contact surfaces are filled with the sealing member 130 so as to block smoke dust entering from one side of the bending joint, and the sealing member 130 can seal the joint between the main cover plate 110 and the auxiliary cover plate 120, thereby effectively inhibiting the smoke dust from overflowing in the process of tapping. In an alternative embodiment, the sealing member 130 is a layer structure filled with a flexible refractory material, firstly, the sealing member 130 is a refractory material made of a refractory material, and secondly, the refractory material is flexible, so that the sealing member 130 can form an effective seal on a contact surface at the joint 101, smoke dust below the main cover plate 110 and the auxiliary cover plate 120 is tightly sealed at the joint, and the sealing member 130 can be made of asbestos cloth, fiber felt or ceramic fiber cloth, or other flexible refractory material, and the sealing member 130 is also used for facilitating the splicing and lifting maintenance of the main cover plate 110 and the auxiliary cover plate 120.
In an alternative embodiment, the contact surface includes at least three sections, the bending angle between the adjacent sections is greater than or equal to a right angle, if the ends of the main body cover plate 110 and the auxiliary cover plate 120 adopt a two-stage step structure, the bending is performed twice, the bending angle is a right angle, when the included angle between the contact surfaces of the adjacent sections is set as described above, smoke dust passes through the contact surfaces and receives larger resistance, the sealing effect of the main body cover plate 110 and the auxiliary cover plate 120 can be obviously improved, the sealing element 130 is filled in one section of the middle position, and for implementation effect and economy, the sealing element 130 is filled only in the contact surface of the middle section, and the multi-section contact surface can be filled completely, but at least one section of the middle position is required to be filled, so that the sealing effect is stronger.
In an alternative embodiment, the device further comprises a casting member 150, the cavity 102 is formed in the main body cover plate 110 and/or the auxiliary cover plate 120, the casting member 150 is filled in the cavity 102, the casting member 150 is formed by casting materials, and the casting member 150 fills the cavity 102. In an alternative embodiment, the steel bar reinforced plastic slab further comprises a reinforced plastic bar 140, the reinforced plastic bar 140 is arranged in the cavity 102, the reinforced plastic bar 140 divides the cavity 102 into a plurality of cavities, such as the reinforced plastic bars 140 criss-cross in the figure, a grid shape is formed, the cavities are grid-shaped single spaces, the edges of the reinforced plastic bar 140 are connected with the bottom and the end parts of the main cover plate 110, and in order to ensure the safe passing of the cast house related mechanical vehicles, the reinforced plastic bars 140 are arranged at the bottoms of the main cover plate 110 and the auxiliary cover plate 120 and the corresponding edge positions of the cavity 102 at the joint, so that the strength of the main cover plate 110 and the auxiliary cover plate 120 is increased.
In an alternative embodiment, the casting member 150 includes a first casting member 151 and a second casting member 152, where the first casting member 151 is filled in the middle of the cavity 102 along the length direction, the width is 600mm, the second casting member 152 is filled on two sides of the middle of the cavity 102 along the length direction, and the width is 600mm, as noted in the figure, the first casting member 151 is a structural member formed by casting materials with resistance to temperatures above 800 ℃, such as a molding member formed by casting with high-alumina refractory casting materials or siliceous refractory casting materials, and the second casting member 152 is a molding member formed by casting with common casting materials, such as a common concrete molding member, and the first casting member 151 is formed by casting with common casting materials along the metal slag trench, so that the middle strip-shaped portion of the smoke sealing cover plate 100 is always subjected to high temperature, and the service life of the smoke sealing cover plate 100 can be prolonged.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," "alternative examples," or "alternative embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.