CN204678880U - A kind of refractory brick is fired and is used Novel tunnel furnace - Google Patents

Abstract

The utility model discloses a novel tunnel kiln for firing refractory bricks, which comprises a kiln body, a kiln car and a track. , heat insulation layer and side baffles, the heat insulation layer is paved on the platform of the frame, and the lower part of the kiln wall on both sides of the kiln body is provided with two slots in parallel along the entire length of the kiln body, the slots are parallel to the track, and the car The width of the frame is 2 to 2.5 times the gauge of the two tracks. The side baffles of the kiln car are installed in the slot and can slide in the slot. At least one sealing groove is set on the kiln wall above the slot. The kiln car The upper heat insulation layer is provided with a protrusion matching the sealing groove. The utility model is a new tunnel kiln for refractory brick firing with good sealing performance, which can effectively isolate hot gas from escaping, reduce heat loss in the kiln, prevent hot gas from spreading to the kiln bottom burning equipment, and avoid energy waste. .

Description

A new tunnel kiln for firing refractory bricks

technical field

The utility model relates to the technical field of thermal equipment for roasting and producing refractory materials, in particular to a novel tunnel kiln for firing refractory bricks.

Background technique

Tunnel kiln is a kind of high-temperature firing equipment, which consists of preheating zone, firing zone and cooling zone. The fired products are put into the body to be fired, and the cycle is repeated to achieve the required daily output. In the existing refractory brick industry, the kiln body and kiln wall are built flush from bottom to top without slots. The width of the kiln car frame is slightly wider than the track gauge, and the width of the kiln car frame and the upper insulation layer is the same as the kiln body. The aisle is as wide, and the heat insulation facilities of the frame and wheels are only isolated by the heat insulation layer on the kiln car. The thermal deformation of the frame and the wheel will cause the mechanical fit to be loose, which will accelerate the aging of the running parts inside the kiln car wheel, seriously affecting the service life of the kiln car, and accompanied by a large amount of heat loss, resulting in energy waste. Therefore, the utility model develops a new type of tunnel kiln for refractory brick firing, which has good sealing performance, can effectively isolate the hot air in the kiln from escaping downward, reduces the heat loss in the kiln, and avoids energy waste; Spread to the bottom of the kiln to burn the equipment to prevent thermal deformation of the equipment, thereby greatly improving the service life of the equipment.

Utility model content

The purpose of this utility model is to provide a kind of good sealing performance, which can effectively isolate the hot air in the kiln from escaping downward, reduce the heat loss in the kiln, and avoid energy waste; A new type of tunnel kiln for firing refractory bricks that produces thermal deformation of the equipment, thereby greatly improving the service life of the equipment.

The purpose of this utility model is achieved in this way, including the kiln body, kiln car and track, the track passes along the kiln body channel, the kiln car is assembled on the track and slides, and the kiln car is composed of a vehicle frame with wheels, a heat insulation layer and side parts The baffle plate is formed, the heat insulation layer is paved on the platform of the frame, and the lower part of the kiln wall on both sides of the kiln body is provided with two slots in parallel along the entire length of the kiln body. The slots are parallel to the track, and the width of the frame is two rails. 2 to 2.5 times the distance, the side baffles of the kiln car are installed in the slot and can slide in the slot, the kiln wall on the upper part of the slot is provided with at least one sealing groove, and the heat insulation layer on the kiln car is provided with Lugs that match sealing grooves.

The utility model arranges two slots in parallel along the entire length of the kiln body at the lower part of the kiln walls on both sides of the kiln body, installs the side baffles of the vehicle frame in the slots, and can slide in the slots, effectively It prevents the hot air from the upper part of the kiln body from spreading to the bottom of the kiln body, and sets a sealing groove on the kiln wall at the upper part of the slot to form a curved seal structure seal with the bumps of the kiln car heat insulation layer, further isolating the hot air Spreading, effectively reducing the thermal erosion of the kiln car wheels, reducing the thermal deformation of the frame and wheels, slowing down the aging of the internal running parts of the kiln car wheels, and improving the service life of the kiln car; Heat loss avoids energy waste. Therefore, the utility model is a novel tunnel kiln for firing refractory bricks that can effectively isolate hot gas from escaping, reduce heat loss in the kiln, prevent hot gas from spreading to the burning equipment at the bottom of the kiln, and avoid energy waste.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

In the figure: 1-kiln body, 11-groove, 12-seal groove, 2-kiln car, 21-side baffle, 22-frame, 23-insulation layer, 24-wheel, 25-bump , 3-track.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings, but the utility model is not limited in any way. Any changes or improvements made based on the teaching of the utility model all belong to the protection scope of the utility model.

As shown in Figure 1, it includes a kiln body 1, a kiln car 2 and a track 3. The track 3 passes through the channel of the kiln body 1. The kiln car 2 is assembled on the track 3 and slides. The kiln car 2 is composed of a frame 22 with wheels 24. , heat insulation layer 23 and side baffles 21, the heat insulation layer 23 is paved on the platform of the vehicle frame 22, and two slots 11 are arranged in parallel along the entire length of the kiln body 1 on the lower part of the kiln wall on both sides of the kiln body 1 , the slot 11 is parallel to the track 3, the width of the vehicle frame 22 is about 2 to 2.5 times the gauge of the two tracks 3, the side baffle 21 of the kiln car 2 is installed in the slot 11, and can be installed in the slot 11 Sliding, the kiln wall on the upper part of the slot 11 is provided with at least one sealing groove 12 , and the heat insulation layer 23 on the kiln car 2 is provided with a bump 25 matching the sealing groove 12 .

The working principle of the utility model is as follows: the bricks to be fired are installed on the kiln car 2, and the kiln car 2 is driven to slide on the track 3 in the kiln body 1 by the driving mechanism. Two slots 11 are arranged in parallel on the entire length of 1, the side baffle plate 21 of the vehicle frame 24 is installed in the slot 11, and can slide in the slot 11, and a sealing recess is set on the kiln wall at the top of the slot 11. Groove 12 and the bump 25 provided on the heat insulation layer 23 of the kiln car 2 form a curved seal structure. When the kiln car 2 passes through the preheating zone, firing zone and cooling zone, there are always these two grooves to keep the seal. Therefore, the hot air on the top of the kiln body 1 is difficult to escape to the bottom of the kiln body 1 .

Further, there is a gap of 20-25 mm between the slot 11 and the side baffle 21 to ensure that the side baffle is unimpeded when the kiln car slides in the slot.

Further, there is a gap of 10-20 mm between the sealing groove 12 and the protrusion 25 to ensure that the heat insulation layer 23 can slide smoothly in the channel of the kiln body 1 along with the kiln car 2 .

Furthermore, the heat insulation layer 23 has 6 to 8 layers on the kiln car 1 platform, which can effectively insulate heat without additionally increasing the weight of the kiln car 2 and avoid consuming too much power energy. .

Preferably, in order to meet the technological requirements for firing refractory bricks, the top of the kiln body 1 is a vault or a flat roof.

Claims (5)

1. a refractory brick is fired with Novel tunnel furnace, include kiln body (1), kiln car (2) and track (3), described track (3) passes along kiln body (1) passage, kiln car (2) is assemblied on track (3) and slides, kiln car (2) is by the vehicle frame (22) of band wheel (24), thermal insulation layer (23) and sidepiece baffle plate (21) are formed, thermal insulation layer (23) place mat is on vehicle frame (22) table top, it is characterized in that: the bottom of described kiln body (1) both sides kiln wall is along twice fluting (11) that the whole length of kiln body (1) be arranged in parallel, described fluting (11) is parallel with track (3), described vehicle frame (22) width is 2 ~ 2.5 times of two track (3) gauges, the sidepiece baffle plate (21) of described kiln car (2) is installed in fluting (11), and can slide in fluting (11), the kiln wall on described fluting (11) top arranges at least one sealed groove (12), thermal insulation layer (23) on described kiln car (2) is provided with the projection (25) mated with sealed groove (12).

2. a kind of refractory brick according to claim 1 is fired with Novel tunnel furnace, it is characterized in that: the gap having 20 ~ 25mm between described fluting (11) and sidepiece baffle plate (21).

3. a kind of refractory brick according to claim 1 is fired with Novel tunnel furnace, it is characterized in that: the gap having 10 ~ 20mm between described sealed groove (12) and projection (25).

4. a kind of refractory brick according to claim 1 is fired with Novel tunnel furnace, it is characterized in that: the number of plies that described thermal insulation layer (23) is built by laying bricks or stones on kiln car (1) table top is 6 ~ 8 layers.

5. a kind of refractory brick according to claim 1 is fired with Novel tunnel furnace, it is characterized in that: described kiln body (1) for top be vault or flat-top.