Cantilever type heat compensation device on side part of roller kiln

Abstract

The utility model discloses a cantilever type heat compensation device at the side part of a roller kiln, which solves the problem of non-uniform section temperature in the kiln caused by heat dissipation of a side wall of the existing glass roller kiln, and is characterized in that: mounting holes of a cantilever heat compensation device (7) are formed in kiln walls (2) at two sides between a carrier roller (5) and upper and lower electric heating rods (6); the cantilever heat supplementing device (7) is composed of a hard cotton brick body (10), a U-shaped electric heating pipe (9), a mounting flange (8), a wiring terminal (12) and a handle (11). The device has the advantages of reasonable and compact structure, flexibility in mounting and dismounting, uniform section temperature, high quality and high efficiency in production and the like, and can be applied to environments (strip-shaped products and products with higher temperature difference in the width direction, and generally the temperature difference is + 2 DEG C) with higher section temperature difference requirements and need of local heat compensation for glass roller kilns and the like, such as the production requirement of a rolled glass annealing process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of thermal equipment, especially relates to a roller kiln side wall suspension heat supplement device. BACKGROUND

[0002] The existing roller kiln generally adopts horizontal cross type rod heating pipe installed on the upper and lower supporting rollers for heating, and the horizontal cross type rod heating pipe cannot effectively control the transverse cross section temperature difference under the process condition with strict cross section temperature difference requirement, generally the temperature field with low temperature on both sides and high temperature in the middle appears, the auxiliary heating system needs to be increased on both sides for compensation, and the heating pipe is usually installed in the slot brick arranged on the side wall for heat supplement, although the transverse cross section temperature difference problem can be solved, but when the heating pipe needs to be replaced, the top structure of the kiln has to be removed, and the maintenance is difficult. CONTENT OF THE UTILITY MODEL

[0003] The utility model belongs to the field of thermal equipment, especially relates to a roller kiln side wall suspension heat supplement device.

[0004] The utility model discloses a technical scheme, it includes metal shell, kiln wall, kiln bottom, kiln top, supporting roller and upper and lower electric heating rod and so on component parts, and the suspension heating device mounting hole is arranged between the supporting roller and the upper and lower electric heating rod on both sides of the kiln wall, and the opening size is about 200mm*80mm.The suspension heating device is composed of hard cotton brick body, U type electric heating pipe, mounting flange, terminal and handle, and the mounting flange is arranged at the end of the hard cotton brick body, and the U type electric heating pipe is arranged at the front end, the wire of the U type electric heating pipe is connected with the terminal arranged on the mounting flange by passing through the hard cotton brick body, and the handle is arranged on the mounting flange.

[0005] Further, the mounting hole is uniformly distributed above and below the supporting roller on both sides of the kiln wall under the premise of guaranteeing the structure strength of the kiln wall, the opening position quantity is determined according to the process requirement, the external power line is connected after installation, and the function of auxiliary heating of the specified area can be realized.

[0006] The utility model has the advantages that it can form complementation with the original horizontal cross type rod heater, occupies small position, can guarantee the heat insulation performance of the kiln side wall and is flexibly arranged, the heater can be expanded in the form of multiple groups of series / parallel in the space with limited height, has the advantages of reasonable and compact structure, convenient installation and maintenance, uniform cross section temperature, high quality and high efficiency and the like, and can meet the auxiliary heating requirement of the glass roller kiln side wall with strict cross section temperature difference.

[0007] The utility model will be further described below with reference to the drawings. DRAWINGS

[0008] Figure 1The utility model discloses installation cross section structure schematic drawing;

[0009] Figure 2 The utility model discloses cantilever heat supplement ware front view structure schematic drawing;

[0010] Figure 3 The utility model discloses cantilever heat supplement ware left view structure schematic drawing;

[0011] Figure 4 The utility model discloses cantilever heat supplement ware plan view structure schematic drawing.

[0012] In the drawing: 1 is metal shell, 2 is kiln wall, 3 is kiln bottom, 4 is kiln top, 5 is carrier roller, 6 is electric heating rod, 7 is cantilever heat supplement ware, 8 is mounting flange, 9 is U type electric heating pipe, 10 is hard cotton brick body, 11 is handle, 12 is wiring terminal. DETAILED DESCRIPTION

[0013] As Figure 1 Shown, the roller way kiln side part cantilever heat supplement device includes metal shell 1, kiln wall 2, kiln bottom 3, kiln top 4, carrier roller 5 and upper and lower electric heating rod 6 and so on, and the cantilever heat supplement ware 7 mounting hole is arranged between carrier roller 5 and upper and lower electric heating rod 6 both sides kiln wall 2.The installation hole is evenly distributed in the upper and lower of kiln wall 2 both sides carrier roller 5.The installation hole size is about 200mm * 80mm, and the depth penetrates the wall, and the opening position quantity is determined by the process demand, and after installation, connect external power line, can realize specified area auxiliary heating.As Figure 2 、 Figure 3 、 Figure 4As shown, the cantilever heater 7 is composed of a hard cotton brick body 10, a U-shaped electric heating pipe 9, a mounting flange 8, a wiring terminal 12 and a handle 11, etc. The mounting flange 8 is arranged at the end of the hard cotton brick body 10, and the U-shaped electric heating pipe 9 is arranged at the front end of the hard cotton brick body 10. The wire of the U-shaped electric heating pipe passes through the hard cotton brick body 10 and is connected to the wiring terminal 12 arranged on the mounting flange 8, and the handle 11 is arranged on the mounting flange. When the utility model is implemented, the mounting hole must be opened on the heat insulation layer of the kiln body when the cantilever heater 7 is installed. In order to avoid heat overflow, the gap of the mounting hole needs to be filled with a cotton blanket after the heater is installed. In order to ensure the normal installation of the cantilever heater 7, the overpass brick and the metal support plate need to be used above the mounting hole to ensure the structural stability of the mounting hole. The products in the furnace need to be supported and conveyed by the supporting roller 5, and the products are usually heated by the upper and lower electric heating rods 6. The temperature difference between the middle and two sides of the hearth is caused by the heat dissipation of the side wall, and the temperature difference can be corrected by evenly installing the cantilever heater 7 above and below the supporting roller 5 on both sides of the kiln wall 2, so that the cross-section temperature in the furnace is kept uniform, and the product will not be curled due to the temperature difference in the width direction, which affects the final qualified rate. The wiring terminal 12 should be equipped with an insulating ring to keep the wiring terminal 12 and the mounting flange 8 and the handle 11 in an electrically isolated state, to prevent the U-shaped electric heating pipe 9 from short-circuiting, the mounting flange 8 from overheating, and the power supply line from overloading, and to ensure the safety of electricity use. When the cantilever heater 7 fails, the faulty cantilever heater 7 can be taken out from the kiln wall 2, and the new U-shaped electric heating pipe 9 can be directly inserted into the mounting hole of the kiln wall 2. The utility model has the advantages of reasonable and compact structure, convenient installation and maintenance, uniform cross-section temperature, high-quality and efficient production, etc., and can meet the auxiliary heating requirements of the glass roller kiln side wall with strict cross-section temperature difference.

Claims

1. A cantilevered heating device for the side of a roller kiln, comprising a metal shell (1), a kiln wall (2), a kiln bottom (3), a kiln top (4), rollers (5), and upper and lower electric heating rods (6), characterized in that: Mounting holes for a cantilevered heater (7) are provided on the kiln walls (2) on both sides between the rollers (5) and the upper and lower electric heating rods (6). The cantilevered heater (7) is composed of a hard cotton brick body (10), a U-shaped electric heating tube (9), a mounting flange (8), a terminal block (12) and a handle (11). A mounting flange (8) is provided at the end of the hard cotton brick body (10), and a U-shaped electric heating tube (9) is provided at the front end. The wire of the U-shaped electric heating tube passes through the hard cotton brick body (10) and is connected to the terminal block (12) provided on the mounting flange (8). A handle (11) is provided on the mounting flange.

2. The roller kiln side cantilevered heat supplement device according to claim 1, characterized in that: The mounting holes are evenly distributed above and below the rollers (5) on both sides of the kiln wall (2) under the premise of ensuring the structural strength of the kiln wall.

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