CN215723247U

CN215723247U - Limit structure of solid waste incinerator grate segment

Info

Publication number: CN215723247U
Application number: CN202121975569.1U
Authority: CN
Inventors: 季建珍; 张星群; 柴会平; 李剑; 周凯滨; 姜天天
Original assignee: HANGZHOU NEW CENTURY ENERGY ENVIRONMENTAL PROTECTION ENGINEERING CO LTD
Current assignee: HANGZHOU NEW CENTURY ENERGY ENVIRONMENTAL PROTECTION ENGINEERING CO LTD
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-02-01
Anticipated expiration: 2031-08-20

Abstract

The utility model relates to a fire grate segment of a solid waste incinerator. The purpose is to provide a limit structure for incinerating solid waste fire grate segments, and the limit structure can effectively solve the problem of failure caused by the fact that the fire grate segments are lifted due to the fact that metal foreign bodies are clamped. The technical scheme is as follows: the utility model provides a limit structure of solid waste burns burning furnace grate piece which characterized in that: the limiting structure comprises a key arranged on the fire grate supporting beam and a groove which is manufactured at the tail of the fire grate segment and matched with the key; the groove is positioned in a cylindrical groove which is embedded between the bottom surface of the tail part of the fire grate segment and the fire grate supporting beam.

Description

Limit structure of solid waste incinerator grate segment

Technical Field

The utility model relates to a fire grate segment of a solid waste incinerator, in particular to a limiting structure of the fire grate segment of the solid waste incinerator.

Background

As is well known, solid waste, including household garbage, general industrial waste and the like, has complex physical characteristics and is inevitable to have metal foreign matters such as iron nails, iron wires, steel balls, bolts, nuts and the like; when the grate bar enters the incinerator for combustion, the grate bar is easy to be clamped in due to certain metal foreign matters in the operation process, so that the grate bar is lifted to form the faults of high primary air short circuit slag leakage rate and the like.

How to avoid the occurrence of the phenomenon is a difficult problem to be solved.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to overcome the defects of the background technology, and provide a limit structure for a fire grate segment for incinerating solid wastes, which can effectively solve the problem of faults caused by the fact that a fire grate segment is lifted due to the fact that metal foreign matters are clamped.

The technical scheme provided by the utility model is as follows:

the utility model provides a limit structure of solid waste burns burning furnace grate piece which characterized in that: the limiting structure comprises a key arranged on the fire grate supporting beam and a groove which is manufactured at the tail of the fire grate segment and matched with the key; the groove is positioned in a cylindrical groove which is embedded between the bottom surface of the tail part of the fire grate segment and the fire grate supporting beam.

The groove is formed in the reinforcing rib on the bottom face of the tail of the fire grate segment and penetrates through the two side edges of the reinforcing rib in the width direction.

The outer surface of the key is spaced from the groove.

The keys are arranged in parallel to the length direction of the grate support beam.

The key is welded and fixed on the fire grate supporting beam.

The working principle of the utility model is as follows: the limit structure comprises a groove processed at the tail part of the fire grate segment and a key which is welded on the fire grate supporting beam and matched with the groove; after the two are embedded, the head of the fire grate segment can not swing and lift up around the axis of the fire grate supporting beam, thereby eliminating the hidden trouble that the existing fire grate segment generates a larger gap due to the lifting up. And if one fire grate segment in each row of fire grate segments is provided with the limiting structure, or if two fire grate segments in each level of fire grate segments are provided with the limiting structure, the whole row of fire grate segments or the whole level of fire grate segments can generate the effect of preventing the fire grate segments from being lifted upwards.

The utility model has the beneficial effects that:

1) the grate segment limiting structure adopted by the utility model realizes effective limitation on the swinging of the grate segment by matching the groove processed on the grate segment with the key welded on the grate supporting beam, prevents the existing grate segment from lifting on the grate segment to form faults of primary air short circuit, high slag leakage rate and the like due to the fact that metal foreign matters are clamped, and ensures the safe and stable operation of the incinerator.

2) The limit structure is adopted, so that the grate segment is convenient to install; during installation, the grooves and the keys of the grate pieces are staggered, and the grate pieces are placed in place and then pushed into the grooves in a lateral direction.

3) The utility model improves the structure of the prior incinerator, has simple and reasonable structure and few added parts, and is beneficial to updating the prior incinerator, in particular to the solid waste incinerator.

Drawings

Fig. 1 is a schematic front view (the left-right direction is the length direction of the fire grate) of the embodiment of the utility model.

Fig. 2 is a top view of the fig. 1.

Fig. 3 is an enlarged schematic view of a portion I in fig. 1.

Fig. 4 is a schematic view of the H-direction structure of fig. 2 after rotation.

The reference numerals in the figures illustrate: 1-fire grate segment; 1 a-a fire grate segment with a limit; 2-a grate corbel; 3-bond.

Detailed Description

The following further description is made with reference to the embodiments shown in the drawings.

In a common solid waste incinerator, a fire grate of the incinerator is formed by arranging and combining a plurality of groups of row sheets; the multiple rows of fire grates in each group are arranged on the furnace body side by side, a plurality of fire grate supporting beams 2 are arranged along the length direction (the left and right direction in figure 1) of the fire grates, each fire grate supporting beam (shown in the figure: the fire grate supporting beams are round steel) is arranged in parallel and is horizontally fixed on a steel frame of the furnace body through a supporting beam frame 2-1, and the axes of all the fire grate supporting beams are vertical to the length direction of the fire grates; each fire grate supporting beam is provided with a group of fire grate segments 1 (the fire grate segments are arranged into a first level, wherein every two adjacent fire grate segments are fixed together by a fastener), the tail part of each fire grate segment is provided with a cylindrical groove with a downward opening, and the tail part of each fire grate segment is embedded on the cylindrical surface of the fire grate supporting beam through the cylindrical groove.

The above structure is similar to the prior art.

The improvement of the utility model is as follows:

at least one grate piece is provided with a limiting structure: the limiting structure comprises a key 3 arranged on a fire grate supporting beam 2 and a groove which is manufactured at the tail part of a fire grate sheet (the left end of the fire grate sheet in figure 1 is a head part, and the right end of the fire grate sheet is a tail part) and is matched with the key; the groove is positioned in the cylindrical groove at the tail part of the fire grate segment; the key also maintains a clearance from the recess.

Furthermore, the grooves are formed in the reinforcing ribs 1a-1 on the bottom surface of the tail of the fire grate segment and penetrate through the edges of the two sides of the reinforcing ribs in the width direction.

The outer surface of the key keeps a proper gap with the groove; and the connecting line of the center of the key and the axis of the fire grate supporting beam is parallel to the working angle of the fire grate segment (namely the elevation angle of the fire grate segment). The key is welded on the back of the grate supporting beam and the welding seam is ground flat; when the fire grate segment is assembled, the positions of the reinforcing ribs and the keys of the fire grate segment are staggered, and the fire grate segment is laterally pushed into the groove after being placed in place, so that the limit of the whole fire grate segment can be realized; generally, as long as one grate segment in each row is provided with a limiting structure, all grate segments can be limited from lifting, and the effect is obvious.

FIG. 2 shows a top view arrangement of one set of fire grate segments; the whole group of fire grate segments is divided into ten rows, and each row is sequentially provided with 5 levels; wherein, the grate segments of the 4 th row and the 7 th row (both positioned at the 2 nd level) are provided with a limiting structure.

Claims

1. The utility model provides a limit structure of solid waste burns burning furnace grate piece which characterized in that: the limiting structure comprises a key arranged on the fire grate supporting beam and a groove which is manufactured at the tail of the fire grate segment and matched with the key; the groove is positioned in a cylindrical groove which is embedded with the grate supporting beam on the bottom surface of the tail part of the grate segment; the key maintains a clearance with the groove.

2. The limit structure of the solid waste incinerator grate segment of claim 1, characterized in that: the groove is formed in the reinforcing rib on the bottom face of the tail of the fire grate segment and penetrates through the two side edges of the reinforcing rib in the width direction.

3. The limit structure of the solid waste incinerator grate segment of claim 2, characterized in that: the outer surface of the key is spaced from the groove.

4. The limit structure of the solid waste incinerator grate segment of claim 3, characterized in that: the keys are arranged in parallel to the length direction of the grate support beam.

5. The limit structure of the solid waste incinerator grate segment of claim 4, characterized in that: the key is welded and fixed on the fire grate supporting beam.