阅读说明：本技术 一种分体式铸焊结合篦板 (Split type cast joint comb board ) 是由 王洲 于 2018-06-05 设计创作，主要内容包括：本发明提供了一种分体式铸焊结合篦板,包括磨损分体及与篦板梁相连的安装分体,所述安装分体为一体铸造成型,所述磨损分体为一体焊接成型；磨损分体包括若干篦缝板及第一固定板,安装分体包括底板、第二固定板、右侧板及顶板；所述底板、右侧板及顶板均一体成型固定在第二固定板上,所述顶板的右端与右侧板的顶部相连；所述篦缝板的左端与第一固定板间焊接固定,所述篦缝板的右端通过限位件与顶板的左端相连,相邻篦缝板之间形成篦缝；所述第一固定板与所述底板的左端可拆卸固定连接；所述底板上设有用于与篦板梁相连的螺栓孔,所述篦缝板上设有避让孔。本发明篦板更换方便、篦缝在制作时根据实际情况可调且节省成本(更换成本及制造成本)。(The invention provides a split type cast-weld combined grate plate which comprises wear split bodies and installation split bodies connected with grate plate beams, wherein the installation split bodies are integrally cast and formed, and the wear split bodies are integrally welded and formed; the abrasion split body comprises a plurality of grate seam plates and a first fixing plate, and the installation split body comprises a bottom plate, a second fixing plate, a right side plate and a top plate; the bottom plate, the right side plate and the top plate are integrally fixed on the second fixing plate, and the right end of the top plate is connected with the top of the right side plate; the left end of the grate seam plate is fixedly welded with the first fixing plate, the right end of the grate seam plate is connected with the left end of the top plate through a limiting part, and a grate seam is formed between every two adjacent grate seam plates; the first fixing plate is detachably and fixedly connected with the left end of the bottom plate; the bottom plate is provided with bolt holes used for being connected with the grate plate beam, and the grate gap plate is provided with avoidance holes. The grid plate is convenient to replace, the grid seam can be adjusted according to actual conditions during manufacturing, and the cost (replacement cost and manufacturing cost) is saved.)

1. The utility model provides a split type cast joint comb board, includes wearing and tearing components of a whole that can function independently and the installation components of a whole that can function independently that link to each other with the comb plate roof beam, its characterized in that: the installation split bodies are integrally cast and formed, and the abrasion split bodies are integrally welded and formed; the abrasion split body comprises a plurality of grate seam plates and a first fixing plate, and the installation split body comprises a bottom plate, a second fixing plate, a right side plate and a top plate; the bottom plate, the right side plate and the top plate are integrally fixed on the second fixing plate, and the right end of the top plate is connected with the top of the right side plate; the left end of the grate seam plate is fixedly welded with the first fixing plate, the right end of the grate seam plate is connected with the left end of the top plate through a limiting part, and a grate seam is formed between every two adjacent grate seam plates; the first fixing plate is detachably and fixedly connected with the left end of the bottom plate; the grate plate is positioned above the bottom plate, the bottom plate is provided with bolt holes used for being connected with the grate plate beam, and avoidance holes are arranged on the grate plate at positions corresponding to the bolt holes.

2. The split type cast-weld joint grate plate of claim 1, wherein: the left end of the bottom plate is provided with a threaded connecting hole, the first fixing plate is provided with a mounting hole corresponding to the threaded connecting hole, and the first fixing plate is connected with the left end of the bottom plate through a screw.

3. The split type cast-weld joint grate plate of claim 2, wherein: the upper portion left end of bottom plate be equipped with an organic whole cast molding's protruding piece, threaded connection hole sets up on this protruding piece, and the top terminal surface of this protruding piece forms first contact interface with the bottom terminal surface of comb seam board, and the left side terminal surface of protruding piece forms the second contact interface with the right side terminal surface of first fixed plate.

4. The split type cast-weld joint grate plate of claim 1, wherein: the locating part is including setting up in roof bottom and being close to the first protruding strip of its left end and setting up at the grate plate top and being close to the second protruding strip of its right-hand member, first protruding strip and roof casting shaping as an organic whole, for welded fastening between second protruding strip and the grate plate, the left side terminal surface of roof and the right side terminal surface of second protruding strip form the third contact interface, and the bottom terminal surface of roof and the top terminal surface of grate plate form the fourth contact interface.

5. The split cast-weld bonded grate plate according to any one of claims 1 to 4, wherein: the grate seam is in a pi shape or/and a horizontal S shape.

6. the split cast-weld bonded grate plate according to any one of claims 1 to 4, wherein: the number of the grid gaps is 1-10, and the grid gap value is 3-7 mm.

7. The split cast-weld bonded grate plate according to any one of claims 1 to 4, wherein: the grate plate can be formed by bending steel plates or welding a plurality of steel plates.

Technical Field

The invention relates to a grate plate for a cement clinker grate cooler, in particular to a split cast-weld combined grate plate.

Background

The used comb plate of cold machine of grate of cement factory at present adopts the integral type casting more, because when the comb plate is in batches big the manufacturing cost is lower, nevertheless also has the shortcoming with the casting formula, mainly does: when the required batch is small, the manufacturing cost of a single grid plate is high due to the mold opening process; a mold is required to be opened for each specification of the grid gap (note: the gap passing through cooling air in the grid plate is called as the grid gap which is an important parameter for the grid plate and even the grid cooler).

The grate cooler area refining air supply is the current main pushing technology, and has high economic benefits on energy conservation, consumption reduction and heat recovery improvement of the grate cooler, and the requirements of the technology on grate plates are also refined to each area, namely, the grate gaps of the grate plates in each area are possibly different, so that the grate plate specification of one grate cooler is changed from the previous 2-3 to the current 5-10, even more, the individual specification is only possibly a few or more, and if the moulds are opened according to casting, the manufacturing cost is very high.

In addition, after the grid plate is used for a certain period of time, when the surface abrasion loss in contact with the clinker reaches a certain value, the grid plate needs to be replaced to meet the requirement of the production process. If the grate plate is integrated (including an integrally cast type and an integrally welded type), although the wear loss ratio of the grate plate is very small compared with the whole grate plate, the whole grate plate is replaced, so the replacement cost is high.

Meanwhile, replacement of the grate plates of the cement plant is carried out by utilizing annual overhaul time or temporary shutdown, so that the whole replacement time is very short, only days or more than ten days, and if the grate plates of various specifications are cast, the manufacturing period is long, and the actual replacement time requirement is difficult to meet.

The problems of the integrated grid plate, particularly the integrated casting grid plate, are also the problems which are commonly existed in cement factories and need to be solved. A grid plate which can simultaneously solve the problems of grid plate replacement, flexible adjustment of grid seams during manufacturing and saving of manufacturing cost as much as possible is needed to be disclosed.

Disclosure of Invention

in order to overcome the defects of the prior art, the invention provides the split cast-weld combined grate plate which is convenient to replace, the grate seam can be adjusted according to actual conditions during manufacturing, and the cost (labor, time cost and manufacturing cost during replacement) is saved.

The technical scheme adopted by the invention for solving the technical problems is as follows: a split type cast-weld combined grate plate comprises wear split bodies and installation split bodies connected with grate plate beams, wherein the installation split bodies are integrally cast and formed, the wear split bodies are integrally welded and formed, each wear split body comprises a plurality of grate seam plates and a first fixing plate, and each installation split body comprises a bottom plate, a second fixing plate, a right side plate and a top plate; the bottom plate, the right side plate and the top plate are integrally fixed on the second fixing plate, and the right end of the top plate is connected with the top of the right side plate; the left end of the grate seam plate is fixedly welded with the first fixing plate, the right end of the grate seam plate is connected with the left end of the top plate through a limiting part, and a grate seam is formed between every two adjacent grate seam plates; the first fixing plate is detachably and fixedly connected with the left end of the bottom plate; the grate plate is positioned above the bottom plate, the bottom plate is provided with bolt holes used for being connected with the grate plate beam, and avoidance holes are arranged on the grate plate at positions corresponding to the bolt holes.

as a further preferred embodiment, the left end of the bottom plate is provided with a threaded connection hole, the first fixing plate is provided with a mounting hole corresponding to the threaded connection hole, and the first fixing plate is connected with the left end of the bottom plate through a screw.

In a further preferred embodiment, the upper left end of the bottom plate is provided with a projection cast integrally therewith, the threaded connection hole is provided in the projection, the top end surface of the projection forms a first contact interface with the bottom end surface of the slot plate, and the left end surface of the projection forms a second contact interface with the right end surface of the first fixing plate.

As a further preferred embodiment, the limiting member includes a first protruding strip disposed at the bottom of the top plate and near the left end thereof, and a second protruding strip disposed at the top of the grate plate and near the right end thereof, the first protruding strip and the top plate are integrally cast, the second protruding strip and the grate plate are welded and fixed, a third contact interface is formed between the left end surface of the top plate and the right end surface of the second protruding strip, and a fourth contact interface is formed between the bottom end surface of the top plate and the top end surface of the grate plate. A gap is reserved between the left end face of the first protruding strip and the right end face of the grate plate, and the effect of avoiding the second protruding strip from being excessively worn is achieved.

as a further preferred embodiment, the grate seam is in a pi shape or/and a horizontal S shape.

As a further preferable embodiment, the number of the grid gaps is 1-10, and the grid gap value is 3-7 mm.

As a further preferred embodiment, the grate plate can be formed by bending a steel plate or welding a plurality of steel plates.

The invention has the following positive effects: the invention adopts a split type, the grate plate is not integrally replaced when replaced, only the part (abrasion split body) in contact with the clinker is replaced, and the part (installation split body) not in contact with the clinker is not replaced; the abrasion split bodies adopt a welding mode, so that the grid plates of any grid gap do not need to be opened, the manufacturing cost is saved, and the installation split bodies adopt integral casting molding batch production with lower cost due to single specification and large quantity, so that the manufacturing cost is effectively reduced; the wear split body which is frequently replaced adopts an integral welding mode, so that the manufacturing period is shortened, and the requirement that the actual replacement time cannot be too long is met. In a word, the invention can save the replacement time of the grid plate, reduce the replacement cost of the grid plate and achieve the aim of saving the cost. In the background art mentioned above, although the wear loss ratio of the integrated (including the integrally cast and welded) grate plate is very small compared with the whole grate plate, the replacement of the integrated (including the integrally cast and welded) grate plate is a whole grate plate, and the replacement cost is relatively large, mainly including three aspects: manufacturing costs, labor costs, and time costs. According to the measurement and calculation, the weight of all grate plates of the 5000t/d grate cooler is about 28-30 tons, the market price is 4-5 ten thousand yuan/ton, and the manufacturing cost is about 130 ten thousand yuan only after once replacement; the replacement time is about 10-15 days, the labor cost and the time cost are relatively high, after the product is adopted, only the abrasion area part (abrasion split body) can be replaced when the grid plate is replaced, and the abrasion area part (installation split body) is not in contact with clinker and is not replaced, so that the cost is saved considerably, the manufacturing cost and the labor cost and the time cost are both greatly reduced (through estimation and calculation, the manufacturing cost can be reduced by about half, the labor cost and the time cost are reduced by more than half, and the generated benefit is very great).

Drawings

FIG. 1 is a schematic view of a structure of a grate plate formed by integral casting;

FIG. 2 is a schematic cross-sectional view taken along the line C-C in FIG. 1;

FIG. 3 is a schematic view of a split type cast-weld bonded grate plate according to a preferred embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view taken along plane A-A of FIG. 3;

FIG. 5 is an exploded view of the split cast-weld bonded grate plate;

FIG. 6 is a cross-sectional structural view of the wear sub-body at location B-B in FIG. 5;

Fig. 7 is a cross-sectional structural view of the installation division body at a position B-B in fig. 5.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the one-piece casting grate plate 101 is the most primitive, traditional and most structure currently in use (fig. 1 and 2 are only for illustration of the one-piece casting formation, and the specific structure may be different from the existing one-piece casting grate plate). The integral replacement is required when the replacement is carried out, the cost is high, the operation is not easy, and the grate seam can not be adjusted according to the actual situation when the grate seam is manufactured.

as shown in fig. 3 to 7, a split cast-weld combined grate plate according to a preferred embodiment of the present invention includes a wear split 2 and an installation split 3 connected to a grate plate beam, wherein the installation split is integrally cast and formed, and the wear split 2 is integrally welded; the wear split 2 comprises a plurality of grate plate 201 and a first fixing plate 202, and the installation split 3 comprises a bottom plate 301, a second fixing plate 302, a right side plate 303 and a top plate 304 (all the parts are connected by integral casting); the bottom plate 301, the right side plate 303 and the top plate 304 are integrally formed and fixed on the second fixing plate 302, and the right end of the top plate 304 is connected with the top of the right side plate 303 (integrally cast); the left end of the grate plate 201 is welded and fixed with the first fixing plate 202, the right end of the grate plate 201 is connected with the left end of the top plate 304 through a limiting piece, and a grate seam is formed between the adjacent grate plates 201; the first fixing plate 202 is detachably and fixedly connected with the left end of the bottom plate 301; the grate plate 201 is located above the bottom plate 301, the bottom plate is provided with bolt holes 308 for connecting grate plate beams, and avoidance holes 204 are arranged at positions corresponding to the bolt holes on the grate plate.

Specifically, a threaded connection hole 307 is formed in the left end of the bottom plate 301, a mounting hole 205 corresponding to the threaded connection hole 307 is formed in the first fixing plate 202, and the first fixing plate 202 and the left end of the bottom plate 301 are detachably and fixedly connected through a screw 1. The screw is a countersunk head or inner hexagon screw. Of course, the first fixing plate and the bottom plate can be detachably connected with each other besides being connected by screws.

Preferably, the left end of the upper part of the bottom plate is provided with a convex block 306 which is cast and formed integrally with the bottom plate, the threaded connection hole 307 is arranged on the convex block 306, the top end surface of the convex block 306 and the bottom end surface of the slot plate 201 form a first contact interface, and the left end surface of the convex block 306 and the right end surface of the first fixing plate 202 form a second contact interface.

In order to meet the requirement that all wear surfaces are in the same split body and meanwhile the wear split body is minimum and light, preferably, the limiting part comprises a first protruding strip 305 arranged at the bottom of the top plate and close to the left end of the top plate and a second protruding strip 203 arranged at the top of the grate plate and close to the right end of the grate plate, the first protruding strip and the top plate are integrally cast and formed, the second protruding strip and the grate plate are welded and fixed, a third contact interface is formed between the left end face of the top plate and the right end face of the second protruding strip 203, and a fourth contact interface is formed between the bottom end face of the top plate and the top end face of the grate plate 201.

The shape of the grid slot can be various to meet the requirements of different ventilation modes, such as pi-shaped or/and horizontal S-shaped.

The grate gaps can be distributed in a large number and a large grate gap value for meeting the requirements of different ventilation rates, the number of the grate gaps is preferably 1-10, and the grate gap value is 3-7 mm.

The grate seam plate can be formed by bending steel plates or welding a plurality of steel plates according to the shape and the number of the grate seams.

The abrasion split body is formed by combining and welding the grate plate and other steel plates (first fixing plates), and when the grate plate is welded, any required grate gap value delta can be obtained by adjusting the position of the grate plate, so that the grate plate with each delta value does not need to be manufactured by opening a die. The installation components of a whole that can function independently adopt integrative casting shaping, but batch production has effectively reduced manufacturing cost.

When the abrasion split is replaced, the installation split is not changed, so that the avoidance hole phi D is formed in the abrasion split, and the abrasion split is not required to be disassembled and assembled when the abrasion split is disassembled and assembled; the connection part of the abrasion split body and the installation split body adopts a tooth mouth mode (the tooth mouth limiting is formed among the top plate, the first protruding strip, the second protruding strip and the grate seam plate shown in figure 3), and the connection part adopts a screw connection mode, wherein the former plays a role in accurate positioning, and the latter plays a role in fastening. The tooth mouth mode can adopt a transition fit mode except a clearance fit mode. All the joining surfaces (contact surfaces) are machined before the joining contact as required for the finishing.

When the grid plate of the embodiment is replaced, the connecting screw 1 is loosened, the abrasion split body is dragged away in the horizontal direction of the upper surface (interface) of the installation split body, and the abrasion split body can be removed after being separated from the tooth mouth; the newly replaced wear split is placed on the upper surface (interface) of the installation split, the tooth mouth is horizontally pushed, and the connecting screw is screwed after the tooth mouth is in place. The whole process is simple, convenient and quick.

The above embodiments are only preferred embodiments of the present invention, and it should be understood that the above embodiments are only for assisting understanding of the method and the core idea of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalents and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.