CN201377977Y

CN201377977Y - Tunnel kiln

Info

Publication number: CN201377977Y
Application number: CN200920079070U
Authority: CN
Inventors: 吴清泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-15
Filing date: 2009-02-15
Publication date: 2010-01-06
Anticipated expiration: 2019-02-15

Abstract

The utility model discloses a tunnel kiln, which comprises a kiln wall, a kiln roof, track piers, a track and a sand sealing trough. The inner surface of the kiln wall is provided with a refractory brick layer. The kiln roof consists of a flat vault refractory brick layer, a vault aluminum silicate heat-preservation layer, a perlite layer, prefabricated hollow slabs, a heat-preservation thermal-insulation material layer and a top cover sequentially from bottom to top. The flat vault refractory brick layer is flat below, and is embedded with refractory bricks; the outer surface of the refractory brick layer is sprayed with energy-saving coating; the cross section of the kiln is 1.9m or 2.58m; and the kiln wall is provided with a waste heat chimney flue and a ventilation duct. The tunnel kiln has the advantages of rational design, good heat-preservation thermal-insulation effect, uniform color and luster of the brick products, good quality, low cost, long service life of the kiln, and environmental protection and energy conservation, and the tunnel kiln can be widely used as the brick tunnel kiln.

Description

Tunnel kiln

Technical field

The utility model relates to a kind of baked kiln, more specifically to a kind of tunnel kiln.

Background technology

Brick firing kiln is of a great variety at present, mainly contains arch formula annular kiln and tunnel kiln.Because it is little that tunnel kiln has labor strength, constant product quality, output height and the low characteristics of cost are used increasingly extensive.But the arc arch is adopted at the top of tunnel kiln mostly, is unfavorable for roasting, causes air-flow inhomogeneous, and aberration is big, more is unfavorable for machinery sign indicating number base.Some flat-top kilns are arranged, all adopt ceiling mounting type, its short in life-span, often maintenance, and also the flue gas that produces during these tunnel kilns burnings directly discharges, and not only wastes energy, and polluted environment, is difficult to promote the use of.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of tunnel kiln of energy-conserving and environment-protective is provided.

The purpose of this utility model is achieved by following technical proposals.

A kind of tunnel kiln comprises basis, track pier, track, kiln wall, kiln top and sand seal groove, and the inner surface of kiln wall is provided with fire brick layer.Described kiln top is made up of flat pattern vault fire brick layer, vault alumina silicate heat-insulation layer, pearl rock stratum, precast hollow slab, heat preserving and insulating material layer and top cover from bottom to top successively, below the described flat pattern vault fire brick layer is flat, is embedded mutually by refractory brick to constitute.

The outer surface of the outer surface of described kiln wall fire brick layer and flat pattern vault fire brick layer is coated with energy-saving coatings; The section of described tunnel kiln is 1.9m or 2.58m; Be provided with waste heat chimney road in the described kiln wall and breathe out the air channel.

The beneficial effects of the utility model are:

1, to adopt hogback be arc and be flat-top below encircleing kiln top, and vault adopts the structure of the mutual embedding of refractory brick, its fastening, good heat-insulation effect, help air-flow and evenly flow, make temperature difference maintenance identical, the combinations color and lustre unanimity the firing chamber in, the kiln long service life, just maintenance more than 10 years;

2, the refractory brick of kiln inner chamber surface spraying energy-saving coatings, its coating plays reflex to infrared ray, and the kiln body of wall is reduced ultrared absorption, spread 30cm with perlite again after the shop alumina silicate fibre glues above the vault, kiln pushes up essentially no high temperature, high insulating effect, energy savings in the production;

3, the flue gas of discharging at cooling section enters preheating section by waste heat chimney road; therefore sulfur in smoke is by wet base absorption; the wet base of heating is simultaneously discharged moisture content; what blower fan was extracted out mainly is steam; and temperature has only 40～50 degree; protected environment, coal consumption can be reduced to 650～900 kilocalories, meets the policy of national energy-saving and emission-reduction.

Description of drawings

Fig. 1 is that the master of the utility model tunnel kiln looks cutaway view;

Fig. 2 is the side partial cross-sectional of tunnel kiln shown in Figure 1.

Be labeled as among the figure: 1-basis, 2-track pier, 3-track, 4-waste heat chimney road, 5-breathe out air channel, 6-side alumina silicate heat-insulation layer, 7-flat pattern vault fire brick layer, 8-vault alumina silicate heat-insulation layer, 9-pearl rock stratum, 10-precast hollow slab, 11-top cover, 12-fire brick layer, 13-slope wall, 14-attached wall, 15-main wall, 16-sand seal groove, 17-heat preserving and insulating material layer, 18-kiln road.

The specific embodiment

The utility model will be further described below in conjunction with accompanying drawing:

As shown in Figure 1 and Figure 2, the utility model tunnel kiln comprises basis 1, track pier 2, track 3, kiln wall, kiln top and sand seal groove 16, form kiln road 18 between kiln wall, kiln top and the basis 1, kiln road 18 is made up of preheating section, furnace zone and cooling section to outlet from import.As shown in Figure 1, two limits in kiln road 18 set gradually sand seal groove 16 respectively and the track pier 2 made by concrete, track pier 2 on track 3 is installed, for the kiln car operation.Described kiln wall comprises sloping wall 13, attached wall 14, main wall 15, between slope wall 13 and the attached wall 14 and be provided with heat preserving and insulating material layer 17 between attached wall 14 and the main wall 15, the outer upper wall of main wall 15 is provided with side alumina silicate heat-insulation layer 6 and fire brick layer 12, plays heat insulation and insulation effect.Described kiln top is made up of pearl rock stratum 9, precast hollow slab 10, heat preserving and insulating material layer 17 and the top cover 11 of flat pattern vault fire brick layer 7, vault alumina silicate heat-insulation layer 8, thick 30cm from bottom to top successively, below the described flat pattern vault fire brick layer 7 is flat, its refractory brick embeds mutually, rational in infrastructure, fastening, good heat-insulation effect, section by the tunnel kiln of this structural design is 1.9m and 2.58m, the principle that meets " in rare limit close, last rare down close " of yard base, be beneficial to machinery sign indicating number base, long service life.The outer surface spraying energy-saving coatings of fire brick layer 12 and flat pattern vault flame retardant coating 7, with reflected infrared ray, energy savings.Top cover 11 is made up of brick.Between main wall 15 and attached wall 14, be provided with waste heat chimney road 4 and breathe out air channel 5; waste heat chimney road 4 communicates with preheating section and cooling section in the kiln road 18 respectively; the waste heat of cooling section is entered preheating section by waste heat chimney road 4; be used to dry adobe; wet adobe absorbs sulfur in smoke, not only saves the energy but also protected environment.In breathing out air channel 5, air blast is set, in order to regulate the size of firepower in the kiln, the control temperature.The fine sand of in the sand seal groove 16 that main wall 15 2 limits are provided with, packing into, when the kiln car of filling adobe when track 3 enters tunnel kiln, the sand seal plate on kiln car two limits enters in the sand seal groove 16, plays sealing, prevents the effect of heat convection current about the kiln car.

Claims

1, a kind of tunnel kiln, comprise basis (1), track pier (2), track (3), kiln wall, kiln top and sand seal groove (16), the inner surface of kiln wall is provided with fire brick layer (12), it is characterized in that: described kiln top is made up of flat pattern vault fire brick layer (7), vault alumina silicate heat-insulation layer (8), pearl rock stratum (9), precast hollow slab (10), heat preserving and insulating material layer (17) and top cover (11) from bottom to top successively, below the described flat pattern vault fire brick layer (7) is flat, is embedded mutually by refractory brick to constitute.

2, tunnel kiln according to claim 1 is characterized in that: the outer surface of the outer surface of described kiln wall fire brick layer (12) and flat pattern vault fire brick layer (7) is coated with energy-saving coatings.

3, tunnel kiln according to claim 1 and 2 is characterized in that: the section of described tunnel kiln is 1.9m or 2.58m.

4, tunnel kiln according to claim 1 and 2 is characterized in that: be provided with waste heat chimney road (4) in the described kiln wall and breathe out air channel (5).