CN216432404U

CN216432404U - Tunnel drying kiln

Info

Publication number: CN216432404U
Application number: CN202120479250.3U
Authority: CN
Inventors: 张志全
Original assignee: Chongqing Wanzhou Hengjie Building Materials Co ltd
Current assignee: Chongqing Wanzhou Hengjie Building Materials Co ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2022-05-03
Anticipated expiration: 2031-03-05

Abstract

The utility model belongs to the technical field of kilns, and particularly discloses a tunnel drying kiln, which comprises a drying kiln body, wherein a rail, a kiln car running on the rail and a traction mechanism driving the kiln car to move are arranged in the drying kiln body; the drying kiln body comprises a kiln wall and a kiln top, a fireproof heat-insulating layer is arranged on the inner side of the kiln wall, the fireproof heat-insulating layer and the lower part of the kiln wall form a stepped structure, two sides of a kiln car respectively extend to the lower parts of the stepped structures on the two sides, a carrying platform on the kiln car is positioned above the steps, and the carrying platform on the kiln car and the fireproof heat-insulating layers on the two sides form a drying space; the kiln top is provided with a plurality of air inlets, and the lower part of the kiln wall is provided with a plurality of moisture outlets. This scheme makes the hot gas flow can be diversified dry the material, and through arranging the timely moisture of damp mouth and discharging, it is effectual to dry.

Description

Tunnel drying kiln

Technical Field

The utility model belongs to the technical field of kilns, and particularly relates to a tunnel drying kiln.

Background

The tunnel drying kiln is a large-scale drying device used in industrial production, and has wide application in the production of cement industry, metallurgical industry, wood drying, brick and tile drying and the like. At present, present brick for building drying kiln is when using, and the majority is put the brick for building on the trolley, puts into tunnel drying kiln through draw gear and dries. The air channels are arranged on two sides of the existing tunnel drying kiln, the air outlet is arranged at the front end of the tunnel, the air inlet is arranged at the rear end of the tunnel, then the air inlet and the air outlet are easily interfered with other parts of the drying kiln, the integral structure is complex, and the difficulty in the maintenance process is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tunnel drying kiln, which can dry materials in multiple directions by hot air flow, discharge moisture in time through a moisture discharge port and has a good drying effect.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

a tunnel drying kiln comprises a drying kiln body, wherein a track, a kiln car running on the track and a traction mechanism driving the kiln car to move are arranged in the drying kiln body; the drying kiln body comprises a kiln wall and a kiln top, a fireproof heat-insulating layer is arranged on the inner side of the kiln wall, the fireproof heat-insulating layer and the lower part of the kiln wall form a stepped structure, two sides of a kiln car respectively extend to the lower parts of the stepped structures on the two sides, a carrying platform on the kiln car is positioned above the steps, and the carrying platform on the kiln car and the fireproof heat-insulating layers on the two sides form a drying space; the kiln top is provided with a plurality of air inlets, and the lower part of the kiln wall is provided with a plurality of moisture outlets.

The principle of the scheme is as follows: when the drying device is used, bricks to be dried are stacked on the carrying platform of the kiln car, then the kiln car enters the drying kiln from the inlet through the traction mechanism and then goes out from the outlet, and in the process, the bricks are heated and dried by the heat energy of the drying kiln. In the drying process, air enters from the kiln top air inlet, high-temperature air is formed after the air is heated by the drying kiln to dry bricks, then hot air is discharged from the moisture discharge port at the bottom of the drying kiln body, and moisture generated in the drying process is discharged through the moisture discharge port to finish air heating circulation.

In addition, the scheme utilizes the fireproof heat preservation layer and the lower part of the kiln wall to form a ladder structure, the two sides of the kiln car are matched with the ladder, so that a drying space is formed by the carrying platform on the kiln car and the fireproof heat preservation layers on the two sides, the bricks are integrally positioned on the upper part of the drying kiln and correspond to hot air circulating from the top to the bottom in the top of the drying kiln during drying, the drying effect is good, and the cooperation between the kiln car and the kiln wall can ensure that the kiln car has a certain blocking effect on the air flow, so that after the hot air flow impacts on the kiln car, part of the hot air flow flows downwards from a gap between the kiln car and the kiln wall, and the rest of the hot air flow downwards from the front side and the rear side of the kiln car, so that the hot air flow can dry materials in multiple directions, and the drying effect of the bricks is further improved.

Preferably, the cavity has been seted up to the kiln wall inboard, and fire-resistant heat preservation sets up in the cavity, and fire-resistant heat preservation includes first heat preservation, second heat preservation and the flame retardant coating that sets gradually in the cavity from interior to exterior, and the flame retardant coating is "L" type structure, and the flame retardant coating lower extreme offsets with the cavity diapire and its tip stretches out to the cavity outside. Through setting up multilayer heat preservation and flame retardant coating, can prevent thermal quick loss, guarantee the stoving effect of drying kiln.

Preferably, the first heat-insulating layer is a heat-insulating felt, the second heat-insulating layer is a heat-insulating brick, and the fire-resistant layer is a refractory brick.

Preferably, the bottom of the kiln top is provided with a third heat-insulating layer, and two sides of the third heat-insulating layer are respectively connected with the tops of the first heat-insulating layers at two sides. The third heat-insulating layer is connected with the first heat-insulating layer, so that the heat-insulating layer covers the whole upper part of the drying kiln, and the heat-insulating effect is improved.

Preferably, a plurality of expansion gaps are arranged on the kiln wall, heat-insulating cotton is filled in the expansion gaps, and asbestos is filled outside the expansion gaps.

Preferably, the kiln wall is provided with a plurality of oxygen increasing ports, the moisture exhaust port is connected with an exhaust pipe, and the exhaust pipe is externally connected with an exhaust fan. So set up, can improve the circulation speed of air.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

3 FIG. 3 2 3 is 3 a 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 1 3; 3

FIG. 3 is a schematic structural view of a refractory insulating layer in the embodiment.

Reference numerals in the drawings of the specification include: the kiln comprises a kiln wall 1, a fire-resistant insulating layer 2, a first insulating layer 21, a second insulating layer 22, a fire-resistant layer 23, a kiln top 3, a third insulating layer 4, a kiln car 5, a traction mechanism 6 and an air inlet 7.

Detailed Description

The following is further detailed by way of specific embodiments:

the embodiment is basically as shown in the attached figures 1 to 3: the utility model provides a tunnel drying kiln, includes the drying kiln body, and the drying kiln body includes kiln wall 1 and the kiln crown 3 at top of both sides, has seted up a plurality of air intake 7 along the axial direction of drying kiln on the kiln crown 3, and a plurality of row of damp mouths (not shown in the figure) have been seted up along the axial direction of drying kiln in the bottom of kiln wall 1. This internal track that is equipped with of drying kiln, and the kiln car 5 that moves on the track and drive the drive kiln car 5 drive the drive mechanism 6 that removes, specifically, the track is laid on the ground in the drying kiln along axial direction, and kiln car 5 passes through the movably cooperation of gyro wheel on the track, and drive mechanism 6 can choose for use current chain formula transport mechanism, also can be as the driving motor structure of installing on kiln car 5 shown in fig. 2.

Referring to fig. 2, the inner sides of the kiln walls 1 on both sides of the drying kiln are respectively provided with a fireproof insulating layer 2, and the fireproof insulating layers 2 and the lower part of the kiln walls 1 form a ladder structure. Referring to fig. 3, in this embodiment, a refractory insulating layer 2 of the right kiln wall 1 is taken as an example for explanation, specifically, a cavity is formed in an upper portion of an inner side of the kiln wall 1, the refractory insulating layer 2 is disposed in the cavity, and the refractory insulating layer 2 includes a first insulating layer 21, a second insulating layer 22 and a refractory layer 23 which are sequentially disposed in the cavity from inside to outside, where the first insulating layer 21 is in a "7" shape, a right side of the first insulating layer 21 abuts against the inner side of the cavity, and an upper end of the first insulating layer abuts against a top wall of the cavity. The refractory layer 23 is of an L-shaped structure, the lower side of the refractory layer 23 abuts against the bottom wall of the cavity, the right side of the bottom of the refractory layer abuts against the first heat-insulating layer 21, the top end of the refractory layer abuts against the top of the first heat-insulating layer 21, and the left side of the refractory layer 23 extends to the outer side of the cavity to enable the refractory layer to form a stepped structure with the lower part of the kiln wall 1. The second insulating layer 22 is located in the space enclosed between the first insulating layer 21 and the fire-resistant layer 23. In some embodiments, the first insulation layer 21 is made of insulation felt, the second insulation layer 22 is made of insulation bricks, and the refractory layer 23 is made of refractory bricks.

The kiln top 3 is also provided with a third heat-insulating layer 4, the third heat-insulating layer 4 covers the lower surface of the kiln top 3, and the left side and the right side of the kiln top 3 are respectively connected with the first heat-insulating layers 21 at the two sides, so that the upper part of the drying kiln is integrally covered with the heat-insulating layers, and the heat-insulating effect is improved. Wherein, the third insulating layer 4 is also internally provided with an insulating felt.

Referring to fig. 3, two sides of the kiln car 5 extend to the lower parts of the ladder structures at the two sides respectively, the carrying platform on the kiln car 5 is positioned above the ladder, and the carrying platform on the kiln car 5 and the fireproof heat-insulating layers 2 at the two sides form a drying space. Specifically, the left and right sides of the upper part of the kiln car 5 are respectively positioned right below the refractory layers 23 on the two sides, the distance between the upper parts of the left and right sides of the kiln car 5 and the lower surface of the refractory layers 23 is 30-50 mm, and the distance between the upper parts of the left and right sides of the kiln car 5 and the kiln walls 1 on the two sides is 30-50 mm. The carrying platform of the kiln car 5 is positioned at the upper part of the kiln car 5, and the whole body of the carrying platform is positioned above the ladder of the refractory layer 23.

In some embodiments, the kiln wall 1 is provided with a plurality of expansion gaps, the expansion gaps are filled with heat insulation cotton, and asbestos is filled outside the expansion gaps.

In some embodiments, the kiln wall 1 is provided with a plurality of oxygen increasing ports, the moisture exhaust port is connected with an exhaust pipe, and the exhaust pipe is externally connected with an exhaust fan for increasing the circulation speed of air.

The principle and the effect of the scheme are as follows: when the drying device is used, bricks to be dried are stacked on the carrying platform of the kiln car 5, then the kiln car 5 enters the drying kiln from the inlet through the traction mechanism 6 and then goes out from the outlet, and in the process, the bricks are heated and dried by the heat energy of the drying kiln. In the drying process, air enters from the air inlet 7 of the kiln top 3, the air is heated by the drying kiln to form high-temperature air so as to dry bricks, then the hot air is discharged from the moisture discharge port at the bottom of the kiln wall 1, and moisture generated in the drying process is discharged from the moisture discharge port, so that the air heating cycle is completed.

And utilize fire-resistant heat preservation 2 and kiln wall 1 lower part to form the stair structure in this scheme, and kiln car 5 both sides and ladder cooperation make the cargo platform on the kiln car 5 constitute the stoving space with the fire-resistant heat preservation 2 of both sides, and the brick is whole to be located drying kiln upper portion and drying kiln in the hot-air of from last circulation down corresponding, and it is effectual to dry. And the distance between the kiln car 5 and the kiln walls 1 at the two sides is limited, so that the kiln car 5 has a certain blocking effect on air flow, after hot air flow impacts on the kiln car 5, part of the hot air flow flows downwards from a gap between the kiln car 5 and the kiln walls 1, and the rest of the hot air flow flows downwards from the front side and the rear side of the kiln car 5, so that the hot air flow can dry materials in multiple directions, and the drying effect of bricks is further improved.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. A tunnel drying kiln is characterized in that: the drying kiln comprises a drying kiln body, wherein a track, a kiln car (5) running on the track and a traction mechanism (6) driving the kiln car (5) to move are arranged in the drying kiln body; the drying kiln body comprises a kiln wall (1) and a kiln top (3), a fireproof heat-insulating layer (2) is arranged on the inner side of the kiln wall (1), the fireproof heat-insulating layer (2) and the lower part of the kiln wall (1) form a ladder structure, two sides of a kiln car (5) respectively extend to the lower parts of the ladder structures on the two sides, a carrying platform on the kiln car (5) is positioned above the ladder, and the carrying platform on the kiln car (5) and the fireproof heat-insulating layers (2) on the two sides form a drying space; a plurality of air inlets (7) are arranged on the kiln top (3), and a plurality of moisture outlets are arranged on the lower part of the kiln wall (1).

2. The tunnel kiln of claim 1, wherein: the cavity has been seted up to kiln wall (1) inboard, and fire-resistant heat preservation (2) set up in the cavity, and fire-resistant heat preservation (2) are including setting gradually first heat preservation (21), second heat preservation (22) and flame retardant coating (23) in the cavity from interior to exterior, and flame retardant coating (23) are "L" type structure, and flame retardant coating (23) lower extreme offsets and its tip stretches out to the cavity outside with the cavity diapire.

3. The tunnel kiln of claim 2, wherein: the first heat-insulating layer (21) is a heat-insulating felt, the second heat-insulating layer (22) is a heat-insulating brick, and the fire-resistant layer (23) is a refractory brick.

4. The tunnel kiln of claim 2 or 3, wherein: the bottom of the kiln top (3) is provided with a third heat-insulating layer (4), and the two sides of the third heat-insulating layer (4) are respectively connected with the tops of the first heat-insulating layers (21) at the two sides.

5. A tunnel kiln according to claim 1, 2 or 3, wherein: the kiln wall (1) is provided with a plurality of expansion gaps, heat-insulating cotton is filled in the expansion gaps, and asbestos is filled outside the expansion gaps.

6. The tunnel kiln of claim 4, wherein: the kiln wall (1) is provided with a plurality of expansion gaps, heat-insulating cotton is filled in the expansion gaps, and asbestos is filled outside the expansion gaps.

7. The tunnel kiln of claim 1, 2, 3 or 6, wherein: a plurality of oxygen increasing openings are formed in the kiln wall (1), the moisture exhaust openings are connected with exhaust pipes, and exhaust fans are connected with the exhaust pipes externally.