Anti-falling connecting structure of wear-resistant cast stone plate with positioning hole

Abstract

The utility model relates to a kind of wear-resistant cast stone plate anti-falling connecting structure with positioning hole, belong to coal chemical equipment technical field.The cast stone plate anti-falling connecting structure includes slag conveyor bottom plate and cast stone plate, at least one through tapered connecting hole is opened on the cast stone plate, the position corresponding the tapered connecting hole of cast stone plate is welded with bolt on the slag conveyor bottom plate, the bolt passes through tapered connecting hole, and cast stone plate is fixed on the slag conveyor bottom plate by the hole wall of tapered connecting hole being pressed by the nut and gasket of threaded connection.This utility model design is fixed on the slag conveyor bottom plate by bolt, nut through tapered connecting hole to cast stone plate, can effectively solve the problem that traditional bonding connection mode is easily caused cast stone plate to fall off from slag conveyor bottom plate under long-term slag water scouring.

Description

Technical Field

[0001] This utility model relates to the field of coal chemical equipment technology, specifically to a wear-resistant cast stone plate anti-detachment connection structure with positioning holes. Background Technology

[0002] In coal chemical production, slag removers are responsible for handling waste slag from gasifiers. As large auxiliary equipment supporting the overall operation, they play a crucial role in ensuring the long-term stable operation of the system. The slag remover is the main slag removal equipment in the gasification system. Gasifier slag and hydrate are discharged into the slag chamber through a slag discharge pipe located inside the slag remover and buffered by a wear-resistant cast stone plate. Currently, the bottom plate of most slag removers is made of wear-resistant basalt cast stone plate bonded with adhesive. Because basalt cast stone plate is inexpensive, has high hardness, and is corrosion-resistant, it is commonly chosen as the bottom wear-resistant component for slag removers. However, during application, the wear-resistant cast stone plates need to withstand the impact of a large amount of slag and slurry in a short period of time (the lock hopper discharges 28m³ of slag and slurry every 0.5 hours in one cycle). Furthermore, the material transported by the slag remover is residual ash and slag from the combustion of coal slurry in the gasifier, which is hard and corrosive. This causes the adhesive material adhering to the cast stone plates below the slag discharge port to gradually disappear due to the erosion from the slag and slurry. Without the adhesive material to buffer the impact from the slag and slurry around the cast stone plates, the plates eventually detach from the bottom plate of the slag remover. The detached plates are pushed by the slag and slurry to the edge of the corresponding slag pool, and then, as the scraper moves, they reach the guide wheel hub, jamming the hub and chain, causing the slag remover to trip due to overcurrent, creating a potential safety hazard.

[0003] After cast stone slabs detach, the usual methods are to re-lay cast stone slabs or lay steel plates and weld them in place. However, detachment still occurs after a period of operation. According to statistics, similar incidents have occurred three times within one year. It is foreseeable that as the operating cycle lengthens and erosion intensifies, cast stone slab detachment incidents will gradually increase, seriously affecting the safe and stable operation of the system. Summary of the Invention

[0004] To address the problems in the existing technology, this utility model patent designs a wear-resistant cast stone plate anti-detachment connection structure with positioning holes, in order to solve the problem that the existing connection method between the wear-resistant cast stone plate and the slag removal machine base plate is prone to detachment during application.

[0005] The technical solution adopted by this utility model is as follows: the cast stone plate anti-fall-off connection structure includes a slag remover base plate and a cast stone plate. The cast stone plate is characterized in that at least one through conical connection hole is opened on the cast stone plate, and a bolt is welded on the slag remover base plate at the position corresponding to the conical connection hole of the cast stone plate. The bolt passes through the conical connection hole and the cast stone plate is fixed to the slag remover base plate by a nut and washer connected by threads.

[0006] Furthermore, the bottom surface of the cast stone slab is bonded to the surface of the slag removal machine base plate by filling adhesive.

[0007] Furthermore, the conical connecting holes of the cast stone plate are also filled with adhesive.

[0008] Furthermore, a number of cast stone plates are arranged and connected on the bottom plate of the slag removal machine, and adjacent cast stone plates are separated by partition positioning flat irons.

[0009] Furthermore, the side of the cast stone plate and the spacer plate are also filled with adhesive.

[0010] Furthermore, the top surface of the bolt is lower than the upper surface of the cast stone plate.

[0011] Compared to existing technologies, the advancement of this utility model patent's anti-detachment connection structure for wear-resistant cast stone plates with positioning holes lies in the following: Conical connection holes are provided on the wear-resistant cast stone plates, and corresponding bolts are welded to the slag remover's base plate. The wear-resistant cast stone plates are connected and fixed to the slag remover's base plate via bolts, nuts, and the conical connection holes. Even if the filling material between the cast stone plate and the base plate is eroded, there is no risk of the cast stone plate detaching from the base plate, ensuring the stable operation of the slag remover. The conical connection holes on the cast stone plates are also filled with adhesive, reducing the impact of slag and water on the bolts and nuts in the connection holes. Separating positioning flat irons are installed between adjacent cast stone plates, providing protection around the cast stone plates and reducing the direct impact of slag and water on the filling material around the cast stone plates. Attached Figure Description

[0012] Figure 1 This is a cross-sectional schematic diagram of a wear-resistant cast stone slab anti-detachment connection structure with positioning holes.

[0013] Figure 2 This is a partial front view schematic diagram of the anti-detachment connection structure of the wear-resistant cast stone plate with positioning holes.

[0014] In the diagram, 1 is a cast stone slab, 2 is the base plate of the slag remover, 3 is a conical connecting hole, 4 is a bolt, 5 is a nut, 6 is a washer, 7 is a filler compound, and 8 is a partition positioning flat iron. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The technical solutions in the embodiments of the present invention will be clearly and completely described. The described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0016] like Figure 1 , 2As shown, this utility model patent designs an embodiment of a wear-resistant cast stone plate anti-detachment connection structure with positioning holes. In this embodiment, the wear-resistant cast stone plate anti-detachment connection structure includes a slag remover base plate 2 and multiple cast stone plates 1 connected to the surface of the base plate. The bottom surfaces of the multiple cast stone plates 1 are bonded and fixed to the surface of the slag remover base plate 2 by filling with adhesive 7. Each cast stone plate 2 has a through-hole conical connecting hole 3 at its center. The diameter of the conical connecting hole 3 gradually decreases from top to bottom. Correspondingly, bolts 4 are welded to the upper surface of the slag remover base plate 2 at the axial positions of the conical connecting holes 3 of each cast stone plate 1. The height of the bolts 4 needs to be less than the thickness of the cast stone plate 1. Washers 6 are fitted onto the bolts 4, and nuts 5 are threaded onto them. Tightening the nuts 5 presses the inner wall of the conical connecting holes 3 through the washers 6, fixing the cast stone plate 1 to the slag remover base plate 2. The conical connecting holes 3 are also filled with adhesive to protect the bolts 4 and nuts 5.

[0017] Several dividing and positioning flat irons 8 are also welded to the bottom plate 2 of the slag removal machine in both the transverse and longitudinal directions. Adjacent cast stone plates 1 are separated by dividing and positioning flat irons 8, and adhesive is filled between the outer peripheral end face of the cast stone plate 1 and the dividing and positioning flat irons 8.

[0018] When applying the anti-detachment connection structure for wear-resistant cast stone plates with positioning holes disclosed in this utility model patent, firstly, weld the separating positioning flat iron 8 and bolts 4 on the bottom plate of the slag remover according to the outer circumference dimensions of each cast stone plate 1 and the position of the conical connection hole 3. Then, add an appropriate amount of filler adhesive 7 to each compartment separated by the flat iron, and then place the cast stone plates 1 in sequence so that each bolt 4 passes through the corresponding conical connection hole 3 of the cast stone plate 1. Then, first add a small amount of adhesive to the conical connection hole 3, screw in the washer 6 and nut 5, tighten it, and then continue to fill the adhesive to fill the connection hole, and embed the bolts and nuts in the adhesive. Finally, fill the periphery of each cast stone plate 1 with adhesive.

[0019] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. Any simple equivalent changes and modifications made in accordance with the claims and description of the present invention shall still fall within the scope of the present invention.

Claims

1. A wear-resistant cast stone plate anti-detachment connection structure with positioning holes, the cast stone plate anti-detachment connection structure comprising a slag remover base plate and a cast stone plate, characterized in that, At least one through-hole tapered connection hole is provided on the cast stone plate. Bolts are welded to the bottom plate of the slag remover at the positions corresponding to the tapered connection hole of the cast stone plate. The bolts pass through the tapered connection hole and the cast stone plate is fixed to the bottom plate of the slag remover by threaded nuts and washers.

2. The anti-detachment connection structure for wear-resistant cast stone slabs with positioning holes according to claim 1, characterized in that, The bottom surface of the cast stone slab is bonded to the surface of the slag remover base plate by filling adhesive.

3. The anti-detachment connection structure for wear-resistant cast stone slabs with positioning holes according to claim 2, characterized in that, The tapered connecting holes of the cast stone slab are also filled with adhesive.

4. The anti-detachment connection structure for wear-resistant cast stone slabs with positioning holes according to claim 3, characterized in that, The slag removal machine has several cast stone plates arranged and connected on its base plate, with adjacent cast stone plates separated by partition positioning flat iron.

5. The anti-detachment connection structure for wear-resistant cast stone slabs with positioning holes according to claim 4, characterized in that, The sides of the cast stone slab and the spacer plate are also filled with adhesive.

6. The anti-detachment connection structure for wear-resistant cast stone slabs with positioning holes according to claim 5, characterized in that, The top surface of the bolt is lower than the upper surface of the cast stone plate.

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