CN201724242U

CN201724242U - Feed inlet of biomass fuel boiler with corrosion-resistant plate

Info

Publication number: CN201724242U
Application number: CN2010202473100U
Authority: CN
Inventors: 郭克元
Original assignee: HUNAN LIANG RENEWABLE ENERGY POWER CO Ltd
Current assignee: HUNAN LIANG RENEWABLE ENERGY POWER CO Ltd
Priority date: 2010-07-03
Filing date: 2010-07-03
Publication date: 2011-01-26
Anticipated expiration: 2020-07-03

Abstract

The utility model discloses a feed inlet of a biomass fuel boiler with a corrosion-resistant plate. A tubular feed inlet with a metal plate outer layer and a refractory concrete middle layer is connected on the feed inlet of the biomass fuel boiler; a wearing layer with the thickness of 6 to 10 mm and made of heat-resisting corrosion-resistant plate is fixed on the surface of the bottom wall of the refractory concrete layer of the feed inlet through bolts or cementing; and the wearing layer made of the corrosion-resistant plate extends out of the inner wall of a furnace by 5 to 15 mm. Compared with an existing concrete feed pipe, the feed inlet has the advantages that as the heat resisting and abrasion resisting corrosion-resistant plate layer is arranged on the bottom wall in the feed pipe, when biomass fuel flows through the corrosion-resistant plate layer, abrasion is not easy to occur, the service life of the feed pipe can be prolonged by 3 to 10 times, and simultaneously the breakdown maintenance time can be shortened, thus being beneficial to the long-time continuous operation of the boiler, and reducing the maintenance cost.

Description

The biomass fuel boiler charging aperture of band corrosion resistant plate

[technical field] the utility model relates to a kind of boiler component, is a kind of biomass fuel boiler charging aperture with corrosion resistant plate specifically.

[background technology] biomass fuel is as renewable data such as branch, cotton stalk, crops tangerine bar, discarded firewoods, all is taken as offal treatment in the past, not only will spend a large amount of disposal costs, and more it's a pity has wasted valuable heat resource; And current commonly used non-renewable data such as oil, natural gas, fire coal, reduce day by day because of these resources again, price constantly promotes, so many scientific workers and government organs, all making great efforts to explore how to make full use of these reproducible energy source materials, in order to replenish or to substitute those non-renewable energy resources that reduce day by day.

At present; the charging aperture of biomass fuel boiler; be to adopt the cast of refractory material concrete to make mostly, because of biomass fuel pellet is big, rough surface; in the process of charging; charging aperture is watered the serious wear of material feeding, every 3-4 month just must shutdown maintenance once, not only to increase maintenance cost; more important is to waste 1-2 days time, and influence is seriously produced.

[summary of the invention] for overcoming the above-mentioned defective of existing biomass fuel boiler charging aperture, the utility model provides a kind of charging aperture with corrosion resistant plate, to improve the service life of charging aperture, reduces the time of shutting down maintenance.

For solving its technical problem, the technical solution adopted in the utility model is: on existing biomass fuel charging aperture, being connected with a skin is sheet-metal layers, the centre is the tubulose charging aperture of refractory concrete layer, on the bottom wall surface of the refractory concrete layer of this charging aperture, by the wearing layer that bolt or the thick heat-resistance stainless steel plate of the useful 6-10mm that is adhesively fixed are made, the length of the wearing layer that this corrosion resistant plate is made is stretched out stove inwall 5-15mm.

The utility model is compared with the existing concrete feed pipe; following advantage is arranged: because of the diapire in the utility model feed pipe is provided with the stainless steel flaggy that heat resistant and wear resistant is wiped; when biomass fuel flows through this steel plate layer; be difficult for producing wearing and tearing; can improve feed pipe service life 3-10 doubly; can reduce simultaneously the time of shutdown maintenance, help the long-term operation continuously of boiler, reduce maintenance cost.

[description of drawings] further specifies the utility model below in conjunction with drawings and Examples.

Fig. 1 is a structural representation of the present utility model.

Among the figure: 1, boiler body, 2, concrete layer, 3, stainless steel flaggy, 4, metal shell.

[specific embodiment] is with reference to accompanying drawing: the feed pipe that is connected with a cylinder type on the charging aperture of biomass fuel boiler body 1 one sidewalls; the skin of this feed pipe is a metal shell 4; be filled with concrete layer 2 in the shell; on the diapire concrete layer surface in feed pipe by bolt or be adhesively fixed with resistant to elevated temperatures stainless steel flaggy 3; this stainless steel flaggy stretches out stove inwall 5-15mm, is not subjected to the wearing and tearing of charging in order to the protection inboard wall of furnace body.

Claims

1. biomass fuel boiler charging aperture with corrosion resistant plate, it is characterized in that: on the material charging aperture of biomass fuel boiler, being connected with a skin is sheet-metal layers, the centre is the tubulose charging aperture of refractory concrete layer, on the bottom wall surface of the refractory concrete layer of this charging aperture, by the wearing layer that bolt or the thick heat-resistance stainless steel plate of the useful 6-10mm that is adhesively fixed are made, the length of the wearing layer that this corrosion resistant plate is made is stretched out stove inwall 5-15mm.