Tunnel drying kiln

Abstract

The utility model discloses a tunnel drying kiln relates to the brick blank manufacturing technical field, specifically for including drying kiln, the inside bottom end both sides of drying kiln are equipped with the track, and the both ends slidingly connected with kiln door of drying kiln, and the inside middle part of drying kiln is equipped with the convex letter groove, and the surface slidingly connected with T piston of convex letter groove, in the use process, along with the temperature rise in drying kiln, and because of sealing drying kiln through kiln door, can make the pressure increase in its drying kiln, through the setting of T piston and elastic expansion link, can control T piston moves up and down, through T piston and control switch cooperation setting, when control switch and T piston contact, through control switch control air pump and electric heating wire stop working, when temperature is too high, control electric heating wire and air pump stop working, can reduce the temperature in drying kiln, avoid the situation that the brick blank appears dry crack due to temperature is too high, can reduce the consumption of energy again.

Description

Technical Field

[0001] This utility model relates to the field of brick blank manufacturing technology, specifically to tunnel drying kilns. Background Technology

[0002] A tunnel kiln is a modern, continuous firing thermal equipment constructed from refractory, insulation, and building materials, resembling a tunnel and containing transport vehicles such as kiln cars. It is widely used in the firing of refractory materials and ceramic products, and also has applications in the metallurgical industry, including abrasives.

[0003] Existing drying kilns can only dry brick blanks by burning coal from bottom to top over a large area, resulting in poor drying effect, inconsistent quality of products in the same batch, and affecting the quality of the finished products after firing.

[0004] The tunnel drying kiln disclosed in Chinese Utility Model Patent Application Publication CN 220270038U, although it dries brick blanks inside the tunnel kiln through an air circulation device, causes the brick blanks to crack due to excessively high temperature from continuous drying, and also increases energy consumption. Furthermore, the lack of safety protection devices means that as the brick blanks continue to dry, the temperature inside the drying kiln rises, causing the pressure inside the kiln to gradually increase. If the pressure increases to a certain value, it will damage the drying kiln and threaten the personal safety of the workers. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a tunnel drying kiln, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: it includes a drying kiln, with tracks on both sides of the bottom of the drying kiln, kiln doors slidably connected to both ends of the drying kiln, a raised groove in the middle of the interior of the drying kiln, a T-shaped piston slidably connected to the surface of the raised groove, and elastic telescopic rods fixedly connected to both sides of the top of the T-shaped piston, the elastic telescopic rods being fixedly connected to the raised groove.

[0007] Optionally, the bottom end of the T-shaped piston extends through the drying kiln, and a control switch is fixedly connected to the top center of the convex groove. The control switch is a push-button switch and is in contact with the T-shaped piston.

[0008] Optionally, an air pump is fixedly connected to the middle of one side of the front surface of the drying kiln. The air pump's inlet is connected to an air extraction pipe, the air pump's outlet is connected to an air delivery pipe, and the air delivery pipe's outlet is connected to a heating box.

[0009] Optionally, a heating wire is fixedly connected inside the heating box, and there are multiple heating wires arranged in a linear array.

[0010] Optionally, the air outlet of the heating box is connected to an air outlet pipe, and the air outlet of the air outlet pipe passes through the drying kiln.

[0011] Optionally, mounting grooves are provided on both sides of the top of the convex groove. The mounting grooves are U-shaped, and a T-shaped pressure plate is slidably connected to the surface of the mounting groove. Pressure columns are fixedly connected to both sides of the top of the T-shaped piston, and the pressure columns are in contact with the T-shaped pressure plate.

[0012] Optionally, an L-shaped connecting rod is fixedly connected to the top of the T-shaped pressure plate, and a circular piston is fixedly connected to one end of the L-shaped connecting rod. The circular piston is made of thermal insulation material.

[0013] Optionally, pressure relief pipes are fixedly connected to both sides of the center of the drying kiln, with the outlet of the pressure relief pipes penetrating through the drying kiln, and the pressure relief pipes are slidably connected to a circular piston.

[0014] This utility model provides a tunnel drying kiln, which has the following beneficial effects:

[0015] 1. This tunnel drying kiln, through the installation of an air pump, air supply pipe and air extraction pipe, can draw in external air into the heating box. Through the combination of electric heating wire and air outlet pipe, the external air can be heated. The heated air is then transported into the drying kiln through the air outlet pipe, which can dry the brick blanks inside the drying kiln.

[0016] 2. During operation, as the temperature inside the tunnel drying kiln rises and the kiln door is sealed, the pressure inside increases. The T-shaped piston and elastic telescopic rod control the up-and-down movement of the piston. The T-shaped piston, in conjunction with a control switch, stops the air pump and heating element when they contact each other. Conversely, it stops the heating element and air pump when the temperature is too high. This reduces the temperature inside the kiln, preventing cracking of the bricks and minimizing energy consumption.

[0017] 3. During operation, as the temperature inside the tunnel drying kiln rises and the kiln door is sealed, the pressure inside the kiln continuously increases. The T-shaped piston, in conjunction with the elastic telescopic rod, moves upwards. The pressure column, T-shaped pressure plate, and L-shaped connecting rod work together to disengage the circular piston from the pressure relief pipe. Air from inside the kiln enters the pressure relief pipe through the convex groove. Since the pressure relief pipe connects to the outside, it releases pressure inside the kiln, preventing excessive pressure that could harm the kiln and personnel. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 This is a side sectional view of the structure of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0021] Figure 4 This is a side view of the structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the main structure of this utility model;

[0023] Figure 6 This is a top view of the structure of this utility model.

[0024] In the diagram: 1. Drying kiln; 2. Exhaust pipe; 3. Air pump; 4. Gas delivery pipe; 5. Pressure relief pipe; 6. Heating box; 7. Kiln door; 8. Track; 9. Heating wire; 10. Exhaust pipe; 11. T-shaped piston; 12. Circular piston; 13. L-shaped connecting rod; 14. Mounting groove; 15. T-shaped pressure plate; 16. Control switch; 17. Elastic telescopic rod; 18. Pressure column; 19. T-shaped groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0026] Please see Figures 1 to 3The present invention provides a technical solution including a drying kiln 1, with tracks 8 on both sides of the bottom of the drying kiln 1, and kiln doors 7 slidably connected to both ends of the drying kiln 1. A raised groove 19 is opened in the middle of the interior of the drying kiln 1, and a T-shaped piston 11 is slidably connected to the surface of the raised groove 19. Elastic telescopic rods 17 are fixedly connected to both sides of the top of the T-shaped piston 11, and the elastic telescopic rods 17 are fixedly connected to the raised groove 19. The bottom end of the T-shaped piston 11 passes through the drying kiln 1, and a control switch 16 is fixedly connected to the top center of the raised groove 19. The control switch 16 is a push-button switch and is in contact with the T-shaped piston 11.

[0027] Specifically, during use, as the temperature inside the drying kiln 1 rises, and because the kiln door 7 seals the drying kiln 1, the pressure inside the drying kiln 1 increases. The T-shaped piston 11 and the elastic telescopic rod 17 control the up-and-down movement of the T-shaped piston 11. The T-shaped piston 11 is coordinated with the control switch 16. When the control switch 16 contacts the T-shaped piston 11, it controls the air pump 3 and the heating wire 9 to stop working. When the temperature is too high, it controls the heating wire 9 and the air pump 3 to stop working. This reduces the temperature inside the drying kiln 1, preventing the bricks from cracking due to excessive heat, and also reduces energy consumption.

[0028] Please see Figures 1 to 2 An air pump 3 is fixedly connected to the middle of one side of the front surface of the drying kiln 1. The air inlet of the air pump 3 is connected to the air extraction pipe 2, and the air outlet of the air pump 3 is connected to the air supply pipe 4. The air outlet of the air supply pipe 4 is connected to the heating box 6. There are multiple heating wires 9 fixedly connected inside the heating box 6. The multiple heating wires 9 are arranged in a linear array. The air outlet of the heating box 6 is connected to the air outlet pipe 10. The air outlet of the air outlet pipe 10 passes through the drying kiln 1. The air pump 3 and the heating wires 9 are electrically connected to the control switch 16 through wires.

[0029] Specifically, by setting up the air pump 3, the air supply pipe 4 and the air extraction pipe 2, external air can be drawn into the heating box 6. By cooperating with the heating wire 9 and the air outlet pipe 10, the external air can be heated. The heated air is then transported to the drying kiln 1 through the air outlet pipe 10, so that the brick blanks in the drying kiln 1 can be dried.

[0030] Please see Figures 3 to 6The top of the U-shaped groove 19 has mounting grooves 14 on both sides. The mounting grooves 14 are U-shaped. A T-shaped pressure plate 15 is slidably connected to the surface of the mounting groove 14. A pressure column 18 is fixedly connected to the top of the T-shaped piston 11 on both sides. The pressure column 18 is in contact with the T-shaped pressure plate 15. An L-shaped connecting rod 13 is fixedly connected to the top of the T-shaped pressure plate 15. A circular piston 12 is fixedly connected to one end of the L-shaped connecting rod 13. The circular piston 12 is made of heat insulation material. A pressure relief pipe 5 is fixedly connected to both sides of the middle part of the drying kiln 1. The outlet of the pressure relief pipe 5 passes through the drying kiln 1. The pressure relief pipe 5 is slidably connected to the circular piston 12.

[0031] Specifically, during use, as the temperature inside the drying kiln 1 rises, and because the kiln door 7 seals the drying kiln 1, the pressure inside the drying kiln 1 continues to increase. Through the cooperation of the T-shaped piston 11 and the elastic telescopic rod 17, the T-shaped piston 11 can move upward continuously. Through the cooperation of the pressure column 18, the T-shaped pressure plate 15 and the L-shaped connecting rod 13, the circular piston 12 can be driven to disengage from the pressure relief pipe 5. The air inside the drying kiln 1 enters the pressure relief pipe 5 through the convex groove 19. Since the pressure relief pipe 5 is connected to the outside, the pressure inside the drying kiln 1 is relieved through the pressure relief pipe 5 to prevent excessive pressure inside the drying kiln 1 from causing harm to the drying kiln 1 and the personnel.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tunnel drying kiln comprising a drying kiln (1), characterized in that: The drying kiln (1) has tracks (8) on both sides of the bottom inside. The drying kiln (1) is slidably connected to the two ends of the drying kiln (1). The drying kiln (1) has a convex groove (19) in the middle inside. A T-shaped piston (11) is slidably connected to the surface of the convex groove (19). An elastic telescopic rod (17) is fixedly connected to both sides of the top of the T-shaped piston (11). The elastic telescopic rod (17) is fixedly connected to the convex groove (19).

2. The tunnel drying kiln of claim 1, wherein: The bottom end of the T-shaped piston (11) penetrates through the drying kiln (1), and a control switch (16) is fixedly connected to the top center of the convex groove (19). The control switch (16) is a push-button switch, and the control switch (16) is in contact with the T-shaped piston (11).

3. The tunnel drying kiln of claim 1, wherein: A gas pump (3) is fixedly connected to the middle of one side of the front surface of the drying kiln (1). The air inlet of the gas pump (3) is connected to a suction pipe (2), the air outlet of the gas pump (3) is connected to a gas supply pipe (4), and the air outlet of the gas supply pipe (4) is connected to a heating box (6).

4. The tunnel drying kiln of claim 3, wherein: The heating box (6) is fixedly connected with heating wires (9), and there are multiple heating wires (9) arranged in a linear array.

5. The tunnel drying kiln according to claim 3, characterized in that: The outlet of the heating box (6) is connected to an outlet pipe (10), and the outlet of the outlet pipe (10) passes through the drying kiln (1).

6. The tunnel drying kiln of claim 1, wherein: The top of the convex groove (19) is provided with mounting grooves (14) on both sides. The mounting grooves (14) are U-shaped. A T-shaped pressure plate (15) is slidably connected to the surface of the mounting grooves (14). A pressure column (18) is fixedly connected to both sides of the top of the T-shaped piston (11). The pressure column (18) is in contact with the T-shaped pressure plate (15).

7. The tunnel drying kiln of claim 6, wherein: The top of the T-shaped pressure plate (15) is fixedly connected to an L-shaped connecting rod (13), and one end of the L-shaped connecting rod (13) is fixedly connected to a circular piston (12), which is made of thermal insulation material.

8. The tunnel drying kiln of claim 7, wherein: Pressure relief pipes (5) are fixedly connected to both sides of the center of the drying kiln (1). The outlet of the pressure relief pipe (5) passes through the drying kiln (1). The pressure relief pipe (5) is slidably connected to the circular piston (12).

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