CN218237474U - Tail grate sheet of garbage incinerator - Google Patents

Abstract

The utility model discloses a garbage incinerator tail grate segment, which comprises a grate segment, a slag baffle and a supporting rib plate, wherein one side of the slag baffle is connected with the grate segment, the lower end of the slag baffle is supported by the supporting rib plate, and the other end of the supporting rib plate is connected with the grate segment; the grate piece, slag trap and support rib plate all set up on the grate frame through the installing support, and the other end grate that is equipped with of grate frame is fought with the sediment that falls, and the slope of end grate sets up, and one side and the grate frame looks butt of end grate fall the sediment fill and set up the one side at the grate frame, the utility model discloses be provided with slag trap and support rib plate to make high temperature furnace sediment can not carry out sliding friction with afterbody grate piece surface, reduced the wearing and tearing to afterbody grate piece, prolonged life.

Description

Tail grate sheet of garbage incinerator

Technical Field

The utility model relates to a waste incinerator's assembly part field especially relates to a waste incinerator afterbody fire grate segment.

Background

The grate piece at the tail part of the garbage incinerator (or called a grate tail baffle) is positioned at the rear lower part of the final grate of the incinerator and at the upper part of a slag falling hopper (well). The tail fire grate segment and the final fire grate segment are tightly matched to form a slag falling channel, the slag slides to the bottom of the slag falling well along the tail fire grate segment under the action of the final fire grate segment and enters a slag discharging machine, and then the slag is pushed out to a slag pool through the slag discharging machine. The tail grate segment guides the slag to slide to the slag falling well, prevents the slag from abrading the grate frame structure and prevents ash from leaking out of the furnace. The tail fire grate segment of the existing rolling type garbage incinerator consists of an end plate and a cover plate, wherein the end plate is positioned at the upper part and is tightly matched with the last fire grate segment to ensure that the last fire grate segment can move freely and simultaneously ensure reasonable fit clearance to reduce slag leakage. The sliding contact surfaces of the end plate and the cover plate with the furnace slag are smooth plane designs, and the back of the end plate is connected with a framework at the tail part of the fire grate through a mounting bracket by adopting bolts. During installation, the end plate support and the cover plate support are installed firstly, then the cover plate is embedded into the installation support, finally the end plate is embedded into the installation support, the end plate support and the fire grate frame are fixedly connected through bolts by penetrating the bolts in the ash bucket, and not only a scaffold platform needs to be erected in a slag falling well, but also fastening bolts need to be erected inside the end fire grate ash bucket during installation.

The main problems of the prior art are that firstly, the sliding contact surfaces of the end plates and the cover plates and the furnace slag are both smooth plane designs, and the high-temperature furnace slag continuously slides and rubs with the surfaces of the end plates and the cover plates when sliding down, so that the abrasion rate of the end plates and the cover plates is very high, groove-shaped abrasion is formed, and a great amount of labor and spare parts are consumed for replacing the grate bars at the tail part during regular maintenance; in the aspect of installation mode, when the end plate is replaced, a scaffold is required to be erected in the slag falling well to disassemble and assemble the end plate and the cover plate, a scaffold installation fixing bolt is required to be erected in the end-section ash discharging hopper, installation efficiency is low, limited space operation is performed inside the ash discharging hopper, and safety risk is high.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists among the above-mentioned technique, the utility model provides a waste incinerator afterbody grate segment is provided with slag trap and support rib plate to make high temperature furnace slag can not carry out sliding friction with afterbody grate segment surface, reduced the wearing and tearing to afterbody grate segment, prolonged life.

In order to realize the aim, the utility model provides a tail fire grate segment of a garbage incinerator, which comprises a fire grate segment, a slag baffle and a support rib plate, wherein one side of the slag baffle is connected with the fire grate segment, and the lower end of the slag baffle is supported by the support rib plate; the other end of the supporting rib plate is fixedly connected with the fire grate segment; the grate segments, the slag baffle and the support rib plates are all fixed on the grate frame through mounting supports, an end section grate and a slag falling hopper are arranged beside the grate frame, the end section grate is obliquely arranged, the tail end of the end section grate is abutted with the grate frame and the tail section grate segments, and one side of the slag falling hopper is mounted on the grate frame.

Preferably, two slag baffles are designed at the middle upper part of the surface of the tail fire grate segment, and the slag baffles are parallel to a horizontal line or form an acute angle with the horizontal line; the width of the slag trap is proper, and when a slag pile is formed on the slag trap, the slag pile just covers the upper surface of the tail fire grate segment.

Preferably, the tail fire grate segment consists of a first fire grate segment and a common fire grate segment, the tail fire grate segment of the whole incinerator is divided into a plurality of groups according to different furnace type widths, and each group is provided with the first fire grate segment and the common fire grate segments; the fire grate sheets at the tail part of the common block are connected with each other to form an integral structure, three hooks are designed on the back surface, two slag baffles are designed on the upper surface, and embedded installation and fixation are realized by matching the three hooks designed on the back surface with clamping grooves on a matched installation support; every first fire grate piece of group comprises end plate and apron, and the apron designs twice installation couple and supporting draw-in groove, and the end plate designs couple and three countersunk head formula bolt holes together, and the installing support at the end plate back is detachable structure.

Preferably, the fire grate segments are hook-type U-shaped structures, the back faces towards one side of the tail-section fire grate frame, and the upper parts of the fire grate segments are abutted with the tail-end fire grate segments.

Preferably, one side of the fire grate frame, which faces the tail fire grate segment, is provided with a mounting bracket with a clamping groove, wherein the mounting bracket comprises a mounting plate, the clamping groove, a bolt and a bolt hole, and the mounting bracket ensures that the fire grate segment can freely move left and right on the mounting bracket along the clamping groove of the mounting bracket to reach a required position through a back hook.

The beneficial effects of the utility model are that: compared with the prior art, the utility model discloses sliding friction that the slag plate becomes slag and lime-ash with slag and grate segment at afterbody grate segment surface design keeps off the slag plate, avoids the direct sliding wear of slag and grate segment on a large scale. Therefore, when the final grate segment of the incinerator is operated to discharge slag, the falling slag slides from the surface of the ash slag cone on the slag blocking plate to the slag falling hopper, and due to the existence of the slag blocking plate, the direct friction and abrasion of the ash slag and the tail grate segment are avoided, the tail grate segment is protected, the service life of the tail grate segment can be greatly prolonged, and the spare part loss and the maintenance workload are reduced. This mounting means of grate segment, whole work is set up the scaffold platform through the sediment fill and is accomplished and do not need the staff to get into the end section grate ash bucket and carry out fastening bolt, has alleviateed installation work volume, has avoided the inside finite space operation of ash bucket, has improved operation safety factor, has brought very big convenience for the maintenance.

Drawings

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a side view of the first fire grate segment of the present invention;

FIG. 3 is a side view of a conventional block grate segment of the present invention;

FIG. 4 is a front view of the tail grate segment mounting bracket of the present invention;

FIG. 5 is a rear elevation view of the tail grate segment of the present invention;

FIG. 6 is a partial enlarged view of the first piece of the tail fire grate segment of the present invention;

fig. 7 is a partial enlarged view of a common block of the tail fire grate segment of the utility model.

The main component symbols are as follows:

in fig. 2-7:

1. the tail end of the end section of the fire grate is provided with a fire grate segment,

2. a fire grate bearing is arranged on the grate block,

3. the common block of fire grate segments is provided with a fire grate,

4. a slag-stopping plate is arranged on the upper portion of the slag-stopping plate,

5. the slag trap supports the rib plate,

6 a cover plate at the middle section of the box body,

7. a common block fire grate segment mounting bracket,

8. a first fire grate piece cover plate mounting bracket,

9. a clamping groove of a common fire grate sheet bracket,

10. a bolt for fixing a mounting bracket of a common fire grate segment,

11. the end plate of the first fire grate segment,

12. a first fire grate sheet cover plate bracket clamping groove,

13. the first fire grate segment end plate is provided with a sealing countersunk head bolt,

14. a first fire grate segment end plate fixing bolt,

15. a first fire grate piece end plate bracket clamping groove,

16. a first fire grate segment end plate mounting bracket clamping groove fixing bolt,

17. a first fire grate segment cover plate is provided with a bracket clamping groove fixing bolt,

18. a first fire grate segment cover plate mounting bracket fixing bolt,

19. a first fire grate segment cover plate is arranged on the fire grate,

20. the common fire grate segment is provided with a hook,

21. the first fire grate piece cover plate is provided with a hook,

22. the end section of the fire grate frame is provided with a fire grate frame,

23. an ash bucket at the end section of the incinerator,

24. a slag falling hopper.

Detailed Description

In order to more clearly describe the present invention, the following description will be further made with reference to the accompanying drawings; it is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 7, the utility model discloses a tail fire grate segment of a garbage incinerator, which comprises a common fire grate segment 3, a slag baffle 4, a slag baffle support rib plate 5, a first fire grate segment end plate 11 and a first fire grate segment cover plate 19, wherein one side of the slag baffle 4 is connected with the fire grate segment 3 or 19, the lower end of the slag baffle is supported by the support rib plate 5, and the other end of the support rib plate 5 is connected with the fire grate segment 3 or 19; the grate segments 3 and 19, the slag baffle 4 and the support rib plate 5 are all installed on a grate frame 22 through installing supports 7 and 8, an end grate 1, an end ash hopper 23 and a slag falling hopper 24 are arranged beside the grate frame 22, the end grate 1 is obliquely arranged, one side of the end grate is close to the grate frame 22, and one side of the slag falling hopper 24 is installed on the grate frame 22. In the existing scheme, the surface of the tail fire grate segment is a smooth metal surface, so that when the last-stage fire grate segment of the incinerator is operated to discharge slag, the falling slag directly slides along the smooth metal surface of the tail fire grate segment to a falling slag hopper, the slag can directly slide and rub with the surface of the tail fire grate segment, thereby causing the abrasion of the tail fire grate segment.

In order to realize the scheme, the end section fire grate 1 is arranged at the lowest end position of the incinerator and comprises a support frame, a bearing 2 and a movable piece, and a fire grate driving mechanism drives the movable piece to rotate. The movable part comprises a tail end fire grate segment 1, the front end of the tail end fire grate segment 1 is in an arc baffle shape and is tightly matched with the tail end fire grate segment 3, so that a sealing effect is achieved, ash residue is prevented from leaking into the tail end ash hopper 23, and the tail end fire grate segment 1 can normally operate to discharge the ash. In this embodiment, when the material needs to be discharged, the driving device drives the last grate to move, so that the slag falls into the slag falling hopper along the ash cone on the tail grate segment.

Fig. 2-5 are schematic structural diagrams of an embodiment of the present invention. In the embodiment, all tail fire grate pieces of the incinerator are divided into ten groups, each group comprises six fire grate pieces, and each group comprises a first fire grate piece (consisting of an end plate 11, a cover plate 19 and auxiliary parts) and five common fire grate pieces 3, the first fire grate piece cover plate 19 is provided with two matched installing hooks 21 and clamping grooves 12 in pair, and the end plate 11 and the cover plate 19 are separated and independently installed. The cover plate and the end plate of the common block fire grate segment 3 are integrally formed, three hooks 20 and clamping grooves 9 are designed, fixing bolts are not designed, and embedded suspension installation is carried out through the three hooks 20 and the clamping grooves 9 matched in pairs. Install ordinary piece fire grate piece 3 earlier during the installation, ordinary piece fire grate piece 3 is pressed close to installing support 8 and then is turned right or is pushed the position that needs the installation from the left side to the draw-in groove 9 level of going left along ordinary piece installing support 7 from the first position lock of piece, install first piece fire grate piece again after ordinary piece fire grate piece 3 is whole to take one's place, install lower part apron 19 earlier during the first piece fire grate piece of installation, with apron 19 from last down lock draw-in groove 12, later install end plate draw-in groove 15 and install end plate 11 again, end plate 11 can be put into with the wedge structure because of the size is little and need not push from the side in the front, end plate 11 takes one's place and consolidates through three end plate fixing bolt 14 through couple and end plate support draw-in groove 15. The end plate fixing bolts 14 are inserted into the interior of the grate through the bolt holes on the surface of the grate and are screwed by a socket wrench, then the sealing countersunk head bolts 13 of the end plate bolt holes are installed, the sealing countersunk head bolts 13 are designed to be lower than the surface of the grate to prevent ash abrasion, and the end plate sealing countersunk head bolts 13 are screwed by the socket wrench. The fixing bolt 14 and the sealing bolt 13 are corrosion-resistant and high-temperature-resistant bolts. According to the installation mode, all work is completed by erecting a scaffold platform through the slag falling hopper, and people do not need to enter the tail end ash discharging hopper for bolt fastening. Divide into first piece and ordinary piece with the fire grate piece and design respectively, ordinary piece guarantees the steadiness through three pairs of couples and draw-in groove combination and has cancelled the connecting bolt of ordinary piece fire grate piece simultaneously, has alleviateed installation work volume, has avoided the inside finite space operation of ash bucket, has brought very big convenience for the maintenance.

One side of the fire grate frame facing the tail fire grate segment is provided with a mounting bracket with a clamping groove, and the mounting bracket comprises a mounting plate, a clamping groove, a bolt and a bolt hole. The mounting bracket is connected with the fire grate frame through bolts, and the mounting bracket ensures that the fire grate segment can freely move left and right on the mounting bracket to reach a required position along the clamping groove on the surface of the mounting bracket through the back hook.

The surface of the tail fire grate segment is provided with a slag baffle to reduce the abrasion of the fire grate segment. The anti-abrasion principle is to change the sliding friction between the slag and the fire grate segment into the sliding friction between the slag and the ash, so as to avoid the direct sliding abrasion between the slag and the fire grate segment in a large range. Two slag baffles are designed at the middle upper part of the surface of the tail fire grate segment, and a small slag cone which is tightly attached to the tail fire grate segment and is thin at the top and thick at the bottom is formed after slag is received, so that the slag falling off when the last-stage fire grate segment of the incinerator acts to discharge slag can slide from the surface of the slag cone to a slag extractor and can not directly rub with the tail fire grate segment, the tail fire grate segment is protected, and the service life of the tail fire grate segment can be greatly prolonged.

The tail fire grate segment is divided into a first block and a common block, and is installed in a full-suspension manner except for a first end plate. The tail fire grate segments of the whole incinerator are divided into 4-12 groups according to different furnace type widths, and each group is provided with a first fire grate segment and a plurality of common fire grate segments. The fire grate pieces at the tail part of the common block are integrally formed, an end plate cover plate is not distinguished, three hooks are designed on the back surface, two slag baffles are designed on the upper surface, and embedded installation is realized through the matching of the three installation hooks designed on the back surface and clamping grooves on a matched installation support. The apron and the end plate of every first fire grate piece of group separately make, the field assembly, apron design twice installation couple and supporting draw-in groove, the end plate design couple and three countersunk head formula bolt holes together, the installing support at the end plate back is detachable design. Divide into first piece and ordinary piece and with the first piece end plate separately design and with the installation support design of end plate for the installation of detachable convenient ordinary piece with the afterbody grate segment. Ordinary piece design is pure draw-in groove formula suspension installation, need to be with the back couple of grate piece from last down embedding draw-in groove or follow the side push-in draw-in groove, there is the tail grate piece of integral type from last down embedding draw-in groove because of the blocking of last stage grate piece in upper portion, consequently, design first piece, pull down first grate piece and end plate installing support during maintenance, take out the ordinary piece grate piece of damage, then push ordinary piece draw-in groove back flat push to the mounted position and take one's place after pressing close to the faying face of installing support with new ordinary piece grate piece from the first piece, the first piece of reinstallation is accomplished in ordinary piece installation, when installing first piece, install lower part apron earlier, from last down the draw-in groove with the apron, later install end plate support reinstallation end plate, the end plate can be loaded into from the top in the past and need not push in from the side because of little and wedge structure, the end plate is because of only one couple for three fixing bolt reinforcement of reinforcing stability design in upper portion. The bolts are inserted into the interior of the submerged fire grate from the surface of the fire grate and screwed by a socket wrench, in order to prevent abrasion of ash and slag, the fixing bolts are designed to be lower than the surface of the fire grate, and the fixing bolts are screwed by the socket wrench, then are covered with the sealing bolts and screwed, and seal the end plate bolt holes. The bolt is a corrosion-resistant and high-temperature-resistant bolt.

In the installation process of the whole device, only the installation platform needs to be erected in the slag falling well, and personnel do not need to enter the end-section ash discharging hopper for bolt fastening, so that the installation workload is reduced, the operation in a limited space in the ash discharging hopper is avoided, and great convenience is brought to overhaul and maintenance; simultaneously, two slag baffles are designed on the tail grate segment, the slag baffles and the grate segment are integrally formed when leaving a factory or are welded on site when being technically modified in the later period, the surface level of the slag baffles can quickly and conveniently receive slag after installation to form a triangular small slag cone, the upper part of the tail grate segment is protected by the slag cone to guide the slag to slide along the slag cone, the metal friction and abrasion between the slag and the tail grate segment are avoided, the two slag baffles are horizontally arranged from the middle part and the upper part of the outer surface of the tail grate segment, a supporting rib plate is designed between the lower part of the slag baffles and the grate segment, and the material of the slag baffles is heat-resistant, wear-resistant and corrosion-resistant alloy steel. The width of the slag blocking plate is suitable for the triangular slag cone formed by the slag on the slag blocking plate to just cover the upper part of the outer surface of the tail fire grate segment. Therefore, when the final-stage fire grate segment of the incinerator is operated to discharge slag, the falling slag slides off from the surface of the ash cone and cannot directly rub with the tail fire grate segment, the tail fire grate segment is protected, and the service life of the tail fire grate segment can be greatly prolonged.

The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims (5)

1. A grate sheet at the tail part of a garbage incinerator is characterized by comprising a grate sheet, a slag baffle and a supporting rib plate, wherein one side of the slag baffle is connected with the grate sheet, and the lower end of the slag baffle is supported by the supporting rib plate; the other end of the supporting rib plate is fixedly connected with the fire grate segment; the grate segments, the slag baffle and the support rib plates are all fixed on the grate frame through mounting supports, an end grate and a slag falling hopper are arranged beside the grate frame, the end grate is obliquely arranged, the tail end of the end grate is abutted with the grate frame and the tail grate segments, and one side of the slag falling hopper is mounted on the grate frame.

2. The waste incinerator tail grate segment of claim 1, characterized in that two slag baffles are designed on the middle upper part of the tail grate segment surface, and the slag baffles are parallel to the horizontal line or form an acute angle with the horizontal line; the width of the slag blocking plate ensures that a slag pile formed by the ash slag on the slag blocking plate just covers the upper surface of the grate sheet at the tail part.

3. The tail fire grate segment of the garbage incinerator according to claim 1, characterized in that the tail fire grate segment is composed of a first fire grate segment and a common fire grate segment, the tail fire grate segment of the whole incinerator is divided into a plurality of groups according to different furnace type widths, and each group is provided with a first fire grate segment and a plurality of common fire grate segments; the fire grate segments at the tail parts of the common blocks are connected with each other to form an integral structure, three hooks are designed on the back surface, two slag baffles are designed on the upper surface, and embedded installation and fixation are realized by matching the three hooks designed on the back surface with clamping grooves on a matched installation support; each group of first fire grate pieces consists of an end plate and an cover plate, wherein the cover plate is provided with two installation hooks and a matched clamping groove, the end plate is provided with one hook and three countersunk bolt holes, and the installation support at the back of the end plate is of a detachable structure.

4. The tail fire grate segment of the garbage incinerator according to claim 1, characterized in that the fire grate segment is of a hook type U-shaped structure, the back face faces one side of the tail fire grate frame, and the upper part is abutted against the tail fire grate segment.

5. The waste incinerator tail grate segment of claim 1, characterized in that the side of the grate frame facing the tail grate segment is provided with a mounting bracket with a slot, comprising a mounting plate, a slot and a bolt and bolt hole, the mounting bracket ensures that the grate segment can freely move left and right on the mounting bracket to a desired position along the slot of the mounting bracket through the back hook.

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