CN201191130Y

CN201191130Y - Roller kiln

Info

Publication number: CN201191130Y
Application number: CNU2008200169537U
Authority: CN
Inventors: 冯柳; 陈志伟; 王英
Original assignee: Shandong University of Technology
Current assignee: Shandong University of Technology
Priority date: 2008-01-25
Filing date: 2008-01-25
Publication date: 2009-02-04
Anticipated expiration: 2018-01-25

Abstract

The utility model provides a roller kiln, comprising a kiln body mounted on a frame and a roller mounted on the kiln body via a bearing for supporting objects, wherein the kiln body is divided into a preheating area, a middle temperature area, a high temperature area, a tunnel area and a cooling area from inlet to outlet. The roller kiln is characterized in that two side walls of the kiln body in the preheating area and the middle temperature area are provided with a plurality of air inlets alternatively above and under the roller, the side walls of the middle temperature area and the high temperature area are uniformly distributed with gas burners, the side walls of the tunnel area above the roller are uniformly distributed with gas burners, the cooling area is lengthened, and the top of the kiln body in the cooling area is uniformly distributed with smoke outlets. The utility model arranges a plurality of air inlets in the preheating area to quickly increase the temperature of the products in the kiln, to reduce production period, arranges a plurality of gas burners in the high temperature area to reduce temperature difference to completely and uniformly heat products, and lengthens the cooling area and arranges a plurality of smoke outlets to slowly and uniformly reduce the temperature of the products and reduce energy consumption.

Description

Roller kilns

Technical field

The utility model relates to a kind of roller kilns of making wear-resisting industrial ceramics such as the wear-resisting ballstone of aluminium oxide, lining brick, belongs to the ceramic industry equipment technical field.

Background technology

Wear-resisting industrial ceramics such as present known alumina balls, lining brick is produced firing mode three kinds: down-draft kiln burns till formula, shuttle kiln burns till formula and tunnel cave burns till formula, wherein the flame that produced of down-draft kiln burning all goes upward to the kiln top from the bocca of combustion chamber, because the kiln top seals, flame can not continue up, pulled to descendingly by the draft of chimney,, at the bottom of kiln, inhale fire hole and advance branch flue through the gap of burned product, flue collector is discharged by chimney at last; Shuttle kiln is the kiln that intermittently burns till, kiln car advances in the kiln and burns till, burnt down again and pulled out toward opposite direction, unload burned pottery, it is a kind of Thermal Equipment of doing downdraf (or the half downdraf) batch production at the bottom of the kiln with kiln car, the accumulation of heat loss and the radiation loss of kiln are big, the flue-gas temperature height, and heat consumption is higher; Tunnel cave generally is a long linear tunnel, and fixing wall and vault are arranged at its both sides and top, is moving kiln car on the track that lay the bottom, and its main drawback is that kiln car has absorbed most heat.There are the following problems for the design feature of these three kinds of kilns: 1, firing period is long, energy consumption is big, production capacity is low.

The utility model content

The purpose of this utility model provides a kind ofly can overcome above-mentioned defective, firing period is short, energy consumption is low, the roller kilns of excellent working performance.Its technical scheme is:

Comprise rack-mount kiln body, bearing is installed in the roller rod of carrying burned product on the kiln body, the kiln body is along charging, the discharging direction is divided into the preheating zone successively, middle warm area, the high-temperature region, the annealed zone, the cooling zone, it is characterized in that: the kiln body is being positioned at the preheating zone, the two side of middle warm area is provided with a plurality of air inlets, a plurality of air inlets on the two side are interspersed on the roller rod, the below, the kiln body is being arranged in warm area, be evenly equipped with fuel burner nozzle on the sidewall of high-temperature region, on the sidewall that is positioned at above the roller rod of annealed zone, be evenly equipped with fuel burner nozzle, the length of lengthening cooling zone, and be evenly equipped with exhaust opening at the top that the kiln body is positioned at long cooling zone.

Described roller kilns are at the even staggered a plurality of accident treatment mouth that is provided with of kiln body two bottom sides.

Described roller kilns, the roller rod that use preheating zone, middle warm area, annealed zone and cooling zone is aluminium matter porcelain roller bar, the roller rod that adopt the high-temperature region is the siliceous roller rod of carbonization.

Described roller kilns, the length of cooling zone are 1.5～3 times of high-temperature region length.

The utility model compared with prior art has following advantage:

1, the many places air inlet is set up in the preheating zone, and the interior burned product temperature of kiln is risen rapidly, and firing period is short;

2, a plurality of fuel burner nozzles are set up in the high-temperature region, reduce the temperature difference, guarantee more abundant to the heating of goods, even;

3, cooling zone length is extended to 1.5 times of the high-temperature region, and set up a plurality of exhaust openings, make the burned product cooling slowly evenly, energy consumption is little.

Description of drawings

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

Among the figure: 1, support 2, kiln body 3, roller rod 4, preheating zone 5, middle warm area 6, high-temperature region 7, annealed zone 8, cooling zone 9, air inlet 10, fuel burner nozzle 11, exhaust opening 12, accident treatment mouth 13, pallet 14, burned product

The specific embodiment

In the embodiment shown in fig. 1: kiln body 2 is installed on the support 1, roller rod 3 bearings of carrying burned product are installed on the kiln body 2, kiln body 2 is divided into preheating zone 4, middle warm area 5, high-temperature region 6, annealed zone 7 and cooling zone 8 successively along charging, discharging direction, the roller rod 3 that wherein is arranged in preheating zone 4, warm area 5, annealed zone 7 and cooling zone 8 is aluminium matter porcelain roller bar, and the roller rod 3 that adopt high-temperature region 6 is the siliceous roller rod of carbonization.Kiln body 2 is provided with a plurality of air inlets 9 on the sidewall that is arranged in preheating zone 4, warm area 5, a plurality of air inlets 9 on the two side are interspersed at the upper and lower of roller rod 3, kiln body 2 is evenly equipped with fuel burner nozzle 10 on the sidewall that is arranged in warm area 5, high-temperature region 6, on the sidewall that is positioned at above the roller rod 3 of annealed zone 7, be evenly equipped with fuel burner nozzle 10, the length of lengthening cooling zone 8, and kiln body 2 is evenly equipped with exhaust opening 11 at the top that is positioned at long cooling zone 8.For easy to maintenance, at the even staggered a plurality of accident treatment mouth 12 that is provided with of kiln body 2 two bottom sides.

Claims

1, a kind of roller kilns, comprise the kiln body (2) that is installed on the support (1), bearing is installed in the roller rod (3) that kiln body (2) is gone up the carrying burned product, kiln body (2) is along charging, the discharging direction is divided into preheating zone (4) successively, middle warm area (5), high-temperature region (6), annealed zone (7), cooling zone (8), it is characterized in that: kiln body (2) is being positioned at preheating zone (4), the two side of middle warm area (5) is provided with a plurality of air inlets (9), a plurality of air inlets (9) on the two side are interspersed on roller rod (3), the below, kiln body (2) is being arranged in warm area (5), be evenly equipped with fuel burner nozzle (10) on the sidewall of high-temperature region (6), on the sidewall of roller rod (3) top that is positioned at annealed zone (7), be evenly equipped with fuel burner nozzle (10), the length of lengthening cooling zone (8), and be evenly equipped with exhaust opening (11) at the top that kiln body (2) is positioned at long cooling zone (8).

2, roller kilns as claimed in claim 1 is characterized in that: evenly interlocking in kiln body (2) two bottom sides is provided with a plurality of accident treatment mouths (12).

3, roller kilns as claimed in claim 1 is characterized in that: the roller rod (3) that use preheating zone (4), middle warm area (5), annealed zone (7) and cooling zone (8) is aluminium matter porcelain roller bar, and the roller rod (3) that adopt high-temperature region (6) is the siliceous roller rod of carbonization.

4, roller kilns as claimed in claim 1 is characterized in that: the length of cooling zone (8) is 1.5～3 times of high-temperature region (6) length.