CN219409549U

CN219409549U - High-stability LED backboard glass kiln

Info

Publication number: CN219409549U
Application number: CN202320665891.7U
Authority: CN
Inventors: 李凯良; 刘建勇; 杨剑; 简昱瑞; 房辉
Original assignee: Qingdao Ronghe New Material Technology Co Ltd
Current assignee: Qingdao Ronghe New Material Technology Co Ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-07-25
Anticipated expiration: 2033-03-30

Abstract

The utility model discloses a high-stability LED backboard glass kiln, and belongs to the technical field of glass kilns. The technical proposal is as follows: a plurality of electric heating mechanisms and temperature sensors are respectively arranged on the inner wall of the kiln corresponding to each small furnace, a plurality of cooling water bags are arranged on the outer wall of the kiln, and a plurality of temperature sensors are arranged at each cooling water bag; the cooling water bag comprises a cooling water pipe arranged on the outer wall of the kiln, a water inlet and a water outlet of the cooling water pipe are respectively connected with a water pipe, and a flow valve is arranged on the cooling water pipe; the motor thermal mechanism, the temperature sensor and the flow valve are respectively and electrically connected with the controller. According to the utility model, a silicon carbide rod heating mode is used for replacing a natural gas heating mode, so that the temperature stability of each region in the kiln can be improved; the water drum is adopted to accurately control the temperature of the kiln wall, so that the kiln wall is kept in a proper temperature range at all times, and a stable external environment is provided for the combustion of the kiln.

Description

High-stability LED backboard glass kiln

Technical Field

The utility model relates to the technical field of glass kilns, in particular to a high-stability LED backboard glass kiln.

Background

In the production process of glass, the temperature control of a kiln is particularly important, and the temperature control is directly related to the melting degree of raw materials and the quality of the formed glass after the post-forming. At present, the heating mode adopted in the kiln is natural gas combustion, and natural gas is introduced into two sides of the kiln for combustion so as to provide required heat for melting raw materials. The fire is changed every 15 minutes at the two sides of the kiln to realize the uniformity of the heat in the kiln. In addition, a plurality of fans are arranged around and below the kiln to dissipate heat of the kiln so as to ensure that the kiln wall and other areas can be kept at a certain temperature while the high heat inside the kiln is ensured, and the stability of the whole kiln is ensured. As disclosed in chinese patent No. CN214223790U, a natural gas kiln comprises a kiln body, wherein the kiln body is provided with a preheating zone and a firing zone in sequence along the length direction thereof; the combustion area is arranged right below the firing area, and a plurality of combustion nozzles communicated with the natural gas pipeline are arranged in the combustion area; a heating zone is arranged right below the preheating zone, a gas inlet of the heating zone is communicated with a flue gas pipeline of the combustion zone, a gas outlet of the heating zone is communicated with a chimney, and a heat accumulator is arranged in the heating zone.

The heating method described above is a current mainstream heating method, but has the following problems: because the unit heat value of the natural gas is unstable, the introduced combustion-supporting air is unstable, and the kiln is greatly influenced by the external environment temperature, the kiln is in a relatively unstable state, and finally the quality of the produced glass is influenced. In addition, other process parameters in the kiln, such as pressure, glass liquid level and the like, need to be maintained stable to ensure the glass quality.

Disclosure of Invention

The utility model aims to solve the technical problems that: the defects of the prior art are overcome, the high-stability LED backboard glass kiln is provided, and the silicon carbide rod is used for heating to replace natural gas, so that the temperature stability of each area in the kiln can be improved; the water drum is adopted to accurately control the temperature of the kiln wall, so that the kiln wall is kept in a proper temperature range at all times, and a stable external environment is provided for the combustion of the kiln.

The technical scheme of the utility model is as follows:

the high-stability LED backboard glass kiln is characterized in that a plurality of electric heating mechanisms and temperature sensors are respectively arranged on the inner wall of the kiln corresponding to each small kiln, a plurality of cooling water bags are arranged on the outer wall of the kiln, and a plurality of temperature sensors are arranged at each cooling water bag; the cooling water bag comprises a cooling water pipe arranged on the outer wall of the kiln, a water inlet and a water outlet of the cooling water pipe are respectively connected with a water pipe, and a flow valve is arranged on the cooling water pipe; the motor thermal mechanism, the temperature sensor and the flow valve are respectively and electrically connected with the controller.

Preferably, the electric heating mechanism adopts a silicon carbide rod.

Preferably, the kiln is provided with a plurality of pressure sensors and compressed air reserved openings, the compressed air reserved openings are connected with the air compressor through pipelines, and the pressure sensors and the air compressor are respectively and electrically connected with the controller.

Preferably, the pressure sensor and the compressed air reserved port are both positioned at the top of the kiln.

Preferably, a stirring rod is arranged in the kiln, the stirring rod is driven by a motor, and the motor is electrically connected with the controller.

Preferably, a plurality of liquid level sensors are arranged on the inner wall of the kiln, and the liquid level sensors are electrically connected with the controller.

Compared with the prior art, the utility model has the following beneficial effects:

1. the kiln provided by the utility model adopts a silicon carbide rod heating mode to replace natural gas heating mode, so that temperature fluctuation caused by unstable factors such as natural gas heat value and combustion-supporting air proportion does not exist, the temperature stability of each area in the kiln can be improved, and stable temperature conditions are provided for better melting of raw materials. Meanwhile, the water drum is adopted to accurately control the temperature of the kiln wall, so that the kiln wall is kept in a proper temperature range at any time, and a stable external environment is provided for kiln combustion; meanwhile, the kiln wall is cooled by using the water drum, so that a better protection effect can be achieved on the kiln wall, and the influence caused by unstable external conditions such as overheating of the kiln wall and the like due to shutdown of a fan is avoided.

2. The utility model monitors the pressure in the kiln in real time, and regulates and controls the pressure in the kiln by introducing compressed air into the kiln; the liquid level of the glass liquid is also monitored, the stability of the liquid level is maintained by adjusting the feeding frequency, and finally, the pressure in the kiln and the liquid level are ensured to adapt to the process requirements.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic diagram of the structure of the present utility model.

Fig. 2 is a front view of the present utility model.

Fig. 3 is a side view of the present utility model.

Fig. 4 is a top view of the present utility model.

Fig. 5 is a schematic view of the structure of the interior of the kiln of the utility model.

FIG. 6 is a second schematic structural view of the present utility model.

In the figure, 1, a kiln; 2. a temperature sensor; 3. a cooling water pipe; 4. a silicon carbide rod; 5. a pressure sensor; 6. a compressed air reserved port; 7. a stirring rod; 8. a liquid level sensor.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

Example 1

As shown in fig. 1-3, the embodiment provides a high-stability LED back plate glass kiln, firstly, the temperature of each region in the kiln 1 is set, the interior of the kiln 1 is divided into five temperature control regions according to the different temperature requirements of each region in the kiln 1, a plurality of silicon carbide rods 4 and temperature sensors 2 are arranged on the inner wall of each temperature control region (wherein the detection temperature of each region is averaged), and the control temperature is 1522.2 ℃, 1557.6 ℃, 1531.4 ℃, 1545.1 ℃ and 1473.7 ℃ from a first small furnace to a fifth small furnace respectively. According to the temperature requirements of different areas, currents with different magnitudes are respectively introduced into the silicon carbide rods 4 in the different areas, so that the temperatures of the different areas are controlled. When the average temperature value of a certain area detected by the temperature sensor 2 deviates from a preset allowable temperature range, the temperature of the area is dynamically adjusted through the silicon carbide rod 4, and the specific operation is as follows: when the temperature sensor 2 of the first small furnace area detects that the temperature is too low, the controller increases the current of the silicon carbide rod 4 of the area to increase the temperature of the area, so that the temperature control of the area is achieved.

In addition, while building the kiln, cooling water bags are paved on the kiln wall, each cooling water bag is provided with a plurality of temperature sensors 2, and the temperature sensors 2 are electrically connected with a controller; the cooling water drum comprises a cooling water pipe 3 arranged on the outer wall of the kiln 1, a water inlet and a water outlet of the cooling water pipe 3 are respectively connected with the water pipe, a water pump is arranged on the water pipe, a flow valve is arranged on the cooling water pipe 3, and the flow valve is electrically connected with the controller. Wherein the shape layout of the cooling water pipe 3 and the like are reasonably planned to cover the outer wall of the kiln 1. The maximum allowable temperature value of the corresponding temperature sensor 2 at each water drum is set in the controller in advance, and when the temperature of the kiln wall is too high due to the fact that the temperature of the silicon carbide rod 4 is too high, the purpose of cooling the kiln wall is achieved by improving the water pump power of the water drum on the outer wall of the kiln 1 and controlling the water flow in the water drum through the opening and closing of the flow valve.

The kiln 1 of the embodiment uses the silicon carbide rod 4 to heat instead of natural gas, so that temperature fluctuation caused by unstable factors such as natural gas heat value and combustion-supporting air proportion does not exist, the temperature stability of each area in the kiln 1 can be improved, and stable temperature conditions are provided for better melting of raw materials. Meanwhile, the water drum is adopted to accurately control the temperature of the kiln wall, so that the kiln wall is kept in a proper temperature range at any time, and a stable external environment is provided for the combustion of the kiln; meanwhile, the kiln wall is cooled by using the water drum, so that a better protection effect can be achieved on the kiln wall, and the influence caused by unstable external conditions such as overheating of the kiln wall and the like due to shutdown of a fan is avoided.

Example 2

The control of the pressure in the kiln 1 is also important, and on the basis of the embodiment 1, as shown in fig. 1-5, three pressure sensors 5 and a compressed air reserved opening 6 are arranged at the top of the kiln 1, the compressed air reserved opening 6 is connected with an air compressor through a pipeline, and the pressure sensors 5 and the air compressor are respectively and electrically connected with a controller. When the pressure sensor 5 is set to allow the lowest pressure value to be 2Pa and the pressure in the kiln 1 is detected to be less than the lowest pressure value, the controller starts the air compressor to introduce compressed air into the kiln 1 through the compressed air reserved opening 6, so that the pressure in the kiln is improved, and the pressure in the kiln is ensured to adapt to the process requirements.

Example 3

The clarification and homogenization of the glass liquid in the kiln are particularly important, on the basis of the embodiment 1, as shown in fig. 5-6, three motors are fixed at the top of the kiln 1 and are electrically connected with a controller, ceramic stirring rods 7 are connected below the motors, so that the glass liquid in the kiln can be stirred, the clarification and homogenization of the glass liquid are promoted, and the uniformity of the glass liquid is ensured.

Example 4

On the basis of the embodiment 1, as shown in fig. 5-6, a liquid level sensor 8 is arranged on the inner wall of the kiln 1, the liquid level sensor 8 is electrically connected with a controller, the liquid level of the glass liquid is monitored, and when the liquid level is too high, the feeding frequency of a feeder is reduced; when the liquid level is too low, the feeding frequency is increased, and the liquid level is controlled.

Although the present utility model has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present utility model is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present utility model by those skilled in the art without departing from the spirit and scope of the present utility model, and it is intended that all such modifications and substitutions be within the scope of the present utility model/be within the scope of the present utility model as defined by the appended claims. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The high-stability LED backboard glass kiln is characterized in that a plurality of electric heating mechanisms and temperature sensors (2) are respectively arranged on the inner wall of the kiln (1) corresponding to each small kiln, a plurality of cooling water bags are arranged on the outer wall of the kiln (1), and a plurality of temperature sensors (2) are arranged at each cooling water bag; the cooling water bag comprises a cooling water pipe (3) arranged on the outer wall of the kiln (1), a water inlet and a water outlet of the cooling water pipe (3) are respectively connected with a water pipe, and a flow valve is arranged on the cooling water pipe (3); the motor thermal mechanism, the temperature sensor (2) and the flow valve are respectively and electrically connected with the controller.

2. The high-stability LED back plate glass kiln according to claim 1, characterized in that the electric heating mechanism adopts a silicon carbide rod (4).

3. The high-stability LED backboard glass kiln according to claim 1, wherein the kiln (1) is provided with a plurality of pressure sensors (5) and compressed air reserved openings (6), the compressed air reserved openings (6) are connected with an air compressor through pipelines, and the pressure sensors (5) and the air compressor are respectively and electrically connected with a controller.

4. A high stability LED back panel glass kiln according to claim 3, characterized in that the pressure sensor (5) and the compressed air pre-port (6) are both located at the top of the kiln (1).

5. The high-stability LED backboard glass kiln according to claim 1, characterized in that a stirring rod (7) is arranged in the kiln (1), the stirring rod (7) is driven by a motor, and the motor is electrically connected with a controller.

6. The high-stability LED backboard glass kiln as claimed in claim 1, wherein a plurality of liquid level sensors (8) are arranged on the inner wall of the kiln (1), and the liquid level sensors (8) are electrically connected with a controller.