CN210945351U

CN210945351U - Fireproof glass tempering furnace

Info

Publication number: CN210945351U
Application number: CN201920586537.9U
Authority: CN
Inventors: 武英
Original assignee: Suizhong Yuantu Technology Development Co ltd
Current assignee: Suizhong Yuantu Technology Development Co ltd
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2020-07-07
Anticipated expiration: 2029-04-26

Abstract

The utility model provides a fireproof glass tempering furnace. The glass tempering furnace consists of an upper segment, a heating segment, a tempering segment and a lower segment, wherein the heating segment controls the heating temperature of glass to be 650-1000 ℃; the blowing pressure of the tempering section is controlled to be 12000-20000 Pa. Use the utility model discloses the stove carries out the toughened of fire prevention glass, makes toughened glass reach high temperature and the technical requirement that the long-time fire prevention does not break. The device is suitable for being used as equipment for producing fireproof tempered glass.

Description

Fireproof glass tempering furnace

Technical Field

The utility model provides a fire prevention glass tempering furnace that the building materials field used.

Background

The fire resistance can be improved after the glass is toughened, but the toughened glass produced by the common toughening furnace has poor fire resistance and short fire resistance time, so that the fire resistance effect cannot meet the fire field requirement.

Because the existing commonly used glass tempering furnace is influenced by the structure and the production process, the produced fireproof tempered glass cannot achieve high fireproof performance.

The existing fireproof glass is produced by adopting a coating method and a sandwich method, the fireproof principle is heat reflection and heat insulation, but the structure of the glass is not changed, so the fireproof performance is poor.

The heating temperature of the prior common toughening furnace for producing toughened glass is usually controlled at 650 ℃, the toughening blowing pressure is 12000 Pa, and the toughened glass with the technical parameters has short refractory time, low refractory temperature and easy breakage.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect of the existing glass tempering, the utility model provides a fireproof glass tempering furnace. The furnace heats and rapidly cools and tempers glass by setting temperature and blowing pressure in the heating section and the tempering section, and solves the technical problem of fireproof tempered glass production.

The utility model provides a scheme that technical problem adopted is:

an upper segment is arranged on the front side of the tempering furnace, a lower segment is arranged on the rear side of the tempering furnace, and a heating section and a tempering section are arranged between the upper segment and the lower segment;

the toughening furnace body is provided with a driving roller, and a driving wheel of the driving roller is in transmission connection with a driving motor wheel arranged at the lower part through a belt and is used as power for glass operation;

a heater is arranged in a heating box of the heating section at intervals up and down, the heater is formed by winding a matrix of heating wires on ceramic tubes, a temperature sensor is arranged in each ceramic tube, the ceramic tubes are arranged in a forward mode, and the heating temperature of glass is controlled to be 650-1000 ℃ through a heating module;

the toughening section is internally provided with two layers of air grids which are arranged at intervals, each air grid consists of air grid pipes which are arranged at intervals, one surface of each air grid pipe is provided with a plurality of air blowing holes, each air grid pipe is communicated with the static pressure box, one or more fans are arranged on the static pressure box, the fans are used for variable frequency speed regulation, the air grid pipes are transversely arranged, an air pressure sensor is arranged in the static pressure box, and the air blowing pressure is controlled to be 12000-20000 Pa by an air blowing module;

and a power supply module is arranged in the PLC, and is in circuit connection with the transmission module, the heating module and the blowing module.

The positive effects are as follows: use the utility model discloses the stove carries out the toughened of fire prevention glass, makes toughened glass reach high temperature and the technical requirement that the long-time fire prevention does not break. The device is suitable for being used as equipment for producing fireproof tempered glass.

Drawings

FIG. 1 is a structural view of a furnace body of the present invention;

FIG. 2 is a top view of the furnace body of the present invention;

FIG. 3 is a view of the heating pipe of the present invention;

FIG. 4 is a view of the air grid tube of the present invention;

fig. 5 is a diagram of the PLC controller of the present invention.

In the figure, 0 temperature sensor, 01 wind pressure sensor, 1 upper segment, 2 heating segment, 3 toughening segment, 4 lower segment, 5 driving motor, 6 driving roller, 7 heater, 7.1 ceramic tube, 7.2 electric heating wire, 8 air grid, 8.1 air grid tube, 8.2 air blowing hole, 9 PLC controller, 9.1 power module, 9.2 driving module, 9.3 heating module, 9.4 air blowing module, 10 fan and 11 static pressure box.

Detailed Description

An upper segment 1 is arranged on the front side of the tempering furnace, a lower segment 4 is arranged on the rear side of the tempering furnace, and a heating section 2 and a tempering section 3 are arranged between the upper segment and the lower segment;

the toughening furnace body is provided with a driving roller 6, and a driving wheel of the driving roller is in transmission connection with a driving motor 5 arranged at the lower part through a belt and is used as power for glass operation;

a heater 7 which is arranged in a heating box of the heating section at an interval from top to bottom is arranged, the heater is formed by winding a matrix of heating wires 7.2 on a ceramic tube 7.1, a temperature sensor 0 is arranged in each ceramic tube, the ceramic tubes are arranged in the forward direction, and the heating temperature of glass is controlled to be 650-1000 ℃ by a heating module;

an upper layer of air grid 8 and a lower layer of air grid 8 are arranged in the tempering section at intervals, the air grid is composed of air grid pipes 8.1 which are arranged at intervals, one surface of each air grid pipe is provided with a plurality of air blowing holes 8.2, each air grid pipe is communicated with a static pressure box 11, one or more fans 10 are arranged on the static pressure box, the fans are used for frequency conversion and speed regulation, the air grid pipes are transversely arranged, an air pressure sensor 01 is arranged in the static pressure box, and the air blowing pressure is controlled to be 12000-20000 Pa by an air blowing module;

a power supply module 9.1 is arranged in the PLC 9, and the power supply module is in circuit connection with the transmission module 9.2 and is in circuit connection with the heating module 9.3 and the blowing module 9.4.

The power module is external power supply and switch, the drive module is driving motor's switch, and transmission speed can program set in advance, and the heating module is heater power transmission and power failure switch to carry out program control according to temperature sensor's data, the module of blowing is fan switch, and carries out the adjustment of fan rotational speed through the converter according to the wind pressure, and this module includes fan motor converter and wind pressure sensor.

The PLC is of a multipoint relay control type and has control program input, storage and control functions.

The working process is as follows:

treat toughened glass and put on last fragment, convey to the heating section in the furnace body through the driving roller, heat in the heating section, glass swing back and forth in the time of heating, so that glass even heating, reach through temperature sensor sensing heating temperature and set for after heating temperature, carry the toughening section through the glass after the driving roller will heat, toughening section glass also swings from beginning to end, utilize module control of blowing pressure, after reaching tempering blowing time, the glass after the rethread driving roller will tempering is carried down on the fragment, take off from the fragment down, glass's transmission and the swing realize through the transmission module in the PLC controller.

The technical principle of fireproof glass tempering is as follows:

the glass tempering is to form a compression stress layer on the surface of the glass and a tension stress layer inside the glass; when the glass is acted by external force, the compressive stress layer can offset part of tensile stress, so that the glass is prevented from being broken, and the aim of improving the strength of the glass is fulfilled. Furthermore, the microcracks on the glass surface become finer under such compressive stress, the strength of the glass is improved to some extent, and the glass has a certain degree of fire resistance. But when heating temperature is lower, when blowing tempering pressure is lower, can not reach the effect of complete tempering, so the refractory time is short, refractory temperature is low, and glass inside still has tensile stress, when making glass heating temperature improve, under the circumstances of guaranteeing not melting, tensile stress in can thoroughly eliminating glass, under the condition at higher temperature, blow rapidly with higher wind pressure immediately and cool off, can make glass tensile stress improve, the effect of complete tempering has been reached, so when being used for fire prevention glass, can be refractory time long, refractory temperature is high, and can not break.

The advantages are that:

the heating temperature of the traditional toughened glass is 650 ℃, the blowing pressure is 1000-12000 Pa, so the toughened glass has poor fireproof performance. The heating temperature of the furnace glass is 650-1000 ℃, the blowing pressure is 12000-20000 Pa, so the tempered glass has long fire-resistant time, no fracture and high safety.

The method is characterized in that:

experiments prove that the fire-resistant time of the common toughened glass is about 15 minutes, the toughened glass of the device can resist fire for more than 30 minutes, and the glass cannot be cracked even if melted and flowed.

Claims

1. A fireproof glass toughening furnace is provided, wherein an upper segment (1) is arranged on the front side of the toughening furnace, a lower segment (4) is arranged on the rear side of the toughening furnace, and a heating section (2) and a toughening section (3) are arranged between the upper segment (1) and the lower segment (4); a driving roller (6) is arranged on the tempering furnace body, and a driving wheel of the driving roller (6) is in transmission connection with a driving motor (5) arranged at the lower part through a belt and is used as power for glass operation; the method is characterized in that:

heaters (7) which are spaced up and down are arranged in a heating box of the heating section, the heaters (7) are formed by winding a matrix of electric heating wires (7.2) on ceramic tubes (7.1), a temperature sensor (0) is arranged in each ceramic tube (7.1), and the ceramic tubes (7.1) are arranged in the forward direction;

two-layer air grid (8) of upper and lower interval is equipped with in the tempering section, and air grid (8) comprise air grid pipe (8.1) of arranging apart from each other, and the one side of every air grid pipe (8.1) is equipped with a plurality of blowholes (8.2), and every air grid pipe (8.1) all communicates with static pressure case (11), installs one to many fans (10) on static pressure case (11), fan (10) are frequency conversion speed governing, and air grid pipe (8.1) transversely sets up, is equipped with wind pressure sensor (01) in the static pressure case.

2. A fire-resistant glass tempering furnace according to claim 1, wherein:

a power supply module (9.1) is arranged in the PLC (9), and the power supply module (9.1) is in circuit connection with the transmission module (9.2) and is in circuit connection with the heating module (9.3) and the blowing module (9.4).