Annealing kiln for high borosilicate glass products

Abstract

The utility model relates to the field of glass production equipment, in particular to a high borosilicate glass product annealing furnace which comprises a furnace body, a door-shaped frame is arranged at the front end of the furnace body, a sealing door is vertically arranged on the door-shaped frame in a sliding mode, a plurality of air inlet pipes are arranged on the inner side of the sealing door, and an air inlet header pipe connected with the air inlet pipes is arranged in the sealing door. The lower part of the furnace body is provided with a cavity, an axial flow fan and an electric heating mechanism are arranged in the cavity, the cavity is provided with an inlet pipe and an outlet pipe, the end part of the inlet pipe corresponds to the air inlet header pipe up and down, a plurality of air outlet pipes corresponding to the air inlet pipe are arranged in the furnace body, and the outlet pipe is communicated with each air outlet pipe. The annealing furnace has the advantages that the temperature in the furnace body is uniform, and the annealing effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to glass production equipment field especially relates to a high borosilicate glass product annealing lehr. BACKGROUND

[0002] High borosilicate glass is a kind of glass that good fire resistance, high physical strength and water, alkali and acid resistance are greatly improved, high borosilicate glass is widely used in chemical industry, aerospace, military and medical fields, can be made into lamps, tableware, solar water heater and other products, in the production process of high borosilicate glass product, the annealing treatment of the high borosilicate glass product fired is needed, the purpose of annealing treatment is to reduce or eliminate the thermal stress generated in the glass, to prevent the glass from breaking or deforming in the use process, the equipment used in this process is annealing lehr, the internal temperature of the existing annealing lehr is not uniform, and the annealing effect of high borosilicate glass products in different parts is inconsistent, therefore, it is particularly necessary to develop a high borosilicate glass product annealing lehr with uniform temperature in the annealing lehr and good annealing effect. SUMMARY

[0003] The utility model discloses a high borosilicate glass product annealing lehr, has the advantages of uniform temperature in the annealing lehr, good annealing effect.

[0004] The technical scheme adopted is as follows:

[0005] A kind of high borosilicate glass product annealing lehr, including furnace body, the front end of furnace body is provided with door type frame, door type frame is vertically slidably arranged with sealing door, the inboard of sealing door is provided with multiple air inlet pipes, sealing door is provided with air inlet manifold connected with each air inlet pipe, air inlet manifold extends to the lower end of sealing door, the lower part of furnace body is provided with cavity, air inlet pipe and outlet pipe are arranged in cavity, air inlet pipe end is correspondingly arranged with air inlet manifold, the inside of furnace body is provided with multiple air outlet pipes corresponding with air inlet pipe, outlet pipe is communicated with each air outlet pipe.

[0006] Preferably, the axial flow fan includes a drive box, the drive box is provided with a variable frequency motor, the variable frequency motor is provided with a drive shaft, the drive shaft side of the outer side of the drive box is provided with a plurality of fan blades, the drive box is provided with a water cooler, the water cooler is provided with a water inlet pipe and a water outlet pipe, the outer side of the water inlet pipe and the water outlet pipe is provided with a heat insulating sleeve, the water inlet pipe and the water outlet pipe extend to the outside of the furnace body and are connected with the external water source.

[0007] Preferably, the electric heating mechanism includes a plurality of independently arranged electric heating pipe units.

[0008] Preferably, the cavity is provided with a first temperature sensor, and the furnace body is provided with a plurality of second temperature sensors.

[0009] Preferably, the end of the air outlet pipe and the air inlet pipe is provided with a protective mesh plate.

[0010] Preferably, a wind speed sensor is arranged in the outlet pipe.

[0011] Compared with the prior art, the beneficial effects are that:

[0012] 1. In the utility model, the electric heating mechanism generates heat, the heat is moved by the axial flow fan to form hot air, the hot air circulates in the furnace body, the temperature of each part in the furnace body is uniform, and the annealing effect is better.

[0013] 2. The electric heating mechanism of the utility model comprises a plurality of independently arranged electric heating pipe units, a certain number of electric heating pipe units can be selected to be opened or closed according to the temperature requirement of annealing, and the flow speed of the hot air in the furnace body is adjusted by changing the rotating speed of the axial flow fan. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of a high borosilicate glass product annealing furnace of the utility model,

[0015] Figure 2 is Figure 1 a structural schematic view of A in the utility model,

[0016] In the drawing: 1, furnace body; 2, door frame; 3, sealing door; 4, air inlet pipe; 5, air inlet main pipe; 6, cavity; 7, electric heating pipe unit; 8, first temperature sensor; 9, second temperature sensor; 10, inlet pipe; 11, outlet pipe; 12, air outlet pipe; 13, wind speed sensor; 14, frequency conversion motor; 15, driving shaft; 16, fan blade; 17, water cooler; 18, water inlet pipe; 19, water outlet pipe. DETAILED DESCRIPTION

[0017] The utility model will be further described in combination with specific embodiments, as shown in the following: Figures 1 to 2

[0018] Embodiment 1: a high borosilicate glass product annealing furnace, comprising a furnace body 1, the furnace body 1 front end is provided with door frame 2, the door frame 2 is vertically slidably arranged with sealing door 3, the inner side of sealing door 3 is provided with a plurality of air inlet pipes 4, sealing door 3 is provided with air inlet main pipe 5 connected with each air inlet pipe 4, air inlet pipe 4 is evenly distributed in the inner side of sealing door 3, air inlet main pipe 5 extends to the lower end of sealing door 3.

[0019] The lower part of furnace body 1 is provided with cavity 6, the cavity 6 is provided with axial flow fan and electric heating mechanism, the cavity 6 is provided with inlet pipe 10 and outlet pipe 11, the end of inlet pipe 10 corresponds to air inlet main pipe 5 up and down, the inside of furnace body 1 is provided with a plurality of air outlet pipes 12 corresponding to air inlet pipe 4, outlet pipe 11 is communicated with each air outlet pipe 12. ​

[0020] The electric heating mechanism generates heat, and the axial flow fan pushes the heat to form hot air, which circulates in the furnace body 1, so that the temperature of each part of the furnace body 1 is uniform, and the annealing effect is better.

[0021] In an embodiment 2, an annealing furnace for high borosilicate glass products includes a furnace body 1, a door frame 2 arranged at the front end of the furnace body 1, a sealing door 3 vertically slidingly arranged in the door frame 2, a plurality of air inlet pipes 4 arranged on the inner side of the sealing door 3, an air inlet manifold 5 arranged in the sealing door 3 and connected with each of the air inlet pipes 4, and the air inlet pipes 4 being uniformly distributed on the inner side of the sealing door 3 and the air inlet manifold 5 extending to the lower end of the sealing door 3.

[0022] A cavity 6 is arranged at the lower part of the furnace body 1, an axial flow fan and an electric heating mechanism are arranged in the cavity 6, the electric heating mechanism includes a plurality of independently arranged electric heating pipe units 7, a certain number of the electric heating pipe units 7 can be selected to be turned on or turned off according to the temperature requirement of annealing, a first temperature sensor 8 is arranged in the cavity 6, and a plurality of second temperature sensors 9 are arranged in the furnace body 1 to monitor the temperature in the cavity 6 and the temperature in the furnace body 1, respectively.

[0023] The cavity 6 is provided with an inlet pipe 10 and an outlet pipe 11, the end of the inlet pipe 10 corresponds to the air inlet manifold 5 in an up-down direction, a plurality of air outlet pipes 12 corresponding to the air inlet pipes 4 are arranged in the furnace body 1, the outlet pipe 11 communicates with each of the air outlet pipes 12, the end of each of the air outlet pipes 12 and the air inlet pipes 4 is provided with a protective mesh plate to prevent foreign matters from entering the cavity 6 and damaging the axial flow fan, and a wind speed sensor 13 is arranged in the outlet pipe 11 to monitor the wind speed.

[0024] The axial flow fan includes a drive box, the drive box is provided with a variable frequency motor 14, the variable frequency motor 14 is provided with a drive shaft 15, a plurality of fan blades 16 are arranged on the side surface of the drive shaft 15 on the outer side of the drive box, a water cooler 17 is arranged in the drive box, the water cooler 17 is provided with a water inlet pipe 18 and a water outlet pipe 19, heat insulation sleeves are arranged on the outer sides of the water inlet pipe 18 and the water outlet pipe 19, the water inlet pipe 18 and the water outlet pipe 19 extend to the outside of the furnace body 1 and are connected with an external water source, the drive box is cooled by the water cooler 17 to prevent the temperature of the variable frequency motor 14 from being too high.

[0025] The specific working process is as follows: the high borosilicate glass products to be annealed are placed in the furnace body 1, the sealing door 3 is closed, the air inlet manifold 5 and the inlet pipe 10 are connected, the electric heating mechanism and the axial flow fan are started, the heat generated by the electric heating mechanism is blown out from each of the air outlet pipes 12 by the axial flow fan, the hot air circulates in the furnace body 1, the temperature of each part of the furnace body 1 is uniform, and the annealing effect is better.

[0026] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and replacements made by those skilled in the art on the basis of the present application shall fall within the scope of protection of the present application.

Claims

1. An annealing lehr for high borosilicate glass articles, characterized by: The utility model relates to a kind of electric heating stove, including furnace body (1), furnace body (1) front end is provided with door type frame (2), door type frame (2) is vertically slidably provided with sealing door (3), the inside of sealing door (3) is provided with multiple air inlet pipes (4), sealing door (3) is provided with air inlet manifold (5) being connected with each air inlet pipe (4) in, air inlet manifold (5) extends to the lower end of sealing door (3), furnace body (1) lower part is provided with cavity (6), cavity (6) is provided with axial fan and electric heating mechanism, cavity (6) is provided with inlet pipe (10) and outlet pipe (11), inlet pipe (10) end portion is corresponding with air inlet manifold (5) up and down, furnace body (1) inside is provided with multiple air outlet pipes (12) corresponding with air inlet pipe (4), outlet pipe (11) is communicated with each air outlet pipe (12).

2. An annealing lehr for high borosilicate glass articles as claimed in claim 1, characterized in that: The axial fan includes a drive box, the drive box is provided with a variable frequency motor (14), the variable frequency motor (14) is provided with a drive shaft (15), the drive shaft (15) is provided with a plurality of fan blades (16) on the side surface outside the drive box, the drive box is provided with a water cooler (17) inside, the water cooler (17) is provided with a water inlet pipe (18) and a water outlet pipe (19), the water inlet pipe (18) and the water outlet pipe (19) are provided with heat insulation sleeves outside, and the water inlet pipe (18) and the water outlet pipe (19) extend to the outside of the furnace body (1) and are connected with an external water source.

3. An annealing lehr for high borosilicate glass articles as claimed in claim 1, characterized in that: The electric heating mechanism includes a plurality of independently arranged electric heating pipe units (7).

4. An annealing lehr for high borosilicate glass articles as claimed in claim 1 wherein: The cavity (6) is provided with a first temperature sensor (8) inside, and the furnace body (1) is provided with a plurality of second temperature sensors (9).

5. An annealing lehr for high borosilicate glass articles as claimed in claim 1, wherein: The end of the air outlet pipe (12) and the air inlet pipe (4) is provided with a protective mesh.

6. An annealing lehr for high borosilicate glass articles as claimed in claim 1 wherein: The outlet pipe (11) is provided with a wind speed sensor (13) inside.

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