CN212274606U

CN212274606U - Double-layer push plate type tunnel kiln for refractory materials

Info

Publication number: CN212274606U
Application number: CN202020850097.6U
Authority: CN
Inventors: 许聚伟; 许添琪; 黄磊
Original assignee: Zhengzhou Xingbao Refractory Material Co ltd
Current assignee: Zhengzhou Xingbao Refractory Material Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-01-01
Anticipated expiration: 2030-05-20

Abstract

The utility model discloses a double-layer push plate type tunnel kiln for refractory materials, which comprises a kiln body, wherein the kiln body is divided into an upper kiln body layer and a lower kiln body layer, one end of the kiln body is provided with a blank loading and unloading device, and the other end of the kiln body is provided with an auxiliary unloading device which is used for placing a blank in the upper kiln body layer in the lower kiln body layer; kiln body lower floor is equipped with the wind channel, the wind channel pass through blast gate and draught fan and induced duct with kiln body upper strata link up, kiln body upper strata and kiln body lower floor are equipped with first conveyor and the second conveyor opposite in direction of motion respectively, kiln body lower floor still is equipped with heating device. First conveyor can carry out twice at least drying process for the resistant firebrick that the two-channel conveyor loaded to the kiln car sign indicating number, has guaranteed the resistant firebrick on the kiln car fully dry, has effectively prevented the thermal crack phenomenon in the stage of firing that the drying leads to inadequately.

Description

Double-layer push plate type tunnel kiln for refractory materials

Technical Field

The utility model relates to a kiln is fired to refractory material, concretely relates to kiln is fired with double-deck push pedal formula tunnel to refractory material.

Background

Among refractory materials, refractory bricks and refractory balls are among the most predominant ones. The process of making the said refractory material is that the raw material is made into the hair groove first, then the dry manufacture is carried out, finally the process is made through the main steps of sintering in the kiln. However, although the existing furnace can finish firing, a large amount of waste heat generated by the existing furnace cannot be fully utilized, the combustion value of a heat source cannot be fully utilized, the economical efficiency is poor, and the problem of environmental pollution exists; secondly, the kiln body is too long, and generally occupies a large space in a factory within 50 meters. The inventors have long studied and practiced the need for improvement of the prior art to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a double-deck push pedal formula tunnel cave is used to refractory material. The method is realized by the following scheme:

the utility model relates to a double-layer push plate type tunnel kiln for refractory materials, which comprises a kiln body, wherein the kiln body is divided into an upper kiln body layer and a lower kiln body layer, one end of the kiln body is provided with a blank loading and unloading device, the other end of the kiln body is provided with an auxiliary unloading device, and the auxiliary unloading device is used for placing a blank in the upper kiln body layer in the lower kiln body layer; kiln body lower floor is equipped with the wind channel, the wind channel pass through blast gate, draught fan and induced duct with kiln body upper strata link up, kiln body upper strata and kiln body lower floor are equipped with first conveyor and the second conveyor opposite in direction of motion respectively, kiln body lower floor still is equipped with heating device.

The preferred scheme is as follows: first conveyor is single track conveyor, and it includes chain drive and locates the board that holds on the chain, supplementary unloader is including being used for accepting the hopper that holds the dry blank of burning board whereabouts and the radioactive feed cylinder of locating the hopper, the feed cylinder lower extreme articulates there is the valve plate.

The preferred scheme is as follows: the first conveying device is a double-channel conveying device and comprises two pairs of upper rails arranged in parallel, a kiln car arranged on the upper rails, an upper traction device arranged in the upper rails and used for traction of the kiln car to move, and a transverse hydraulic mechanism used for transversely transferring the kiln car, wherein the transverse hydraulic mechanism is used for transferring the kiln car from one upper rail to the other upper rail.

The preferred scheme is as follows: blank handling device, including two at least relative stands that set up, along stand axial up-and-down motion's slip table and be used for driving drive arrangement and the hydraulic control system of slip table motion, be on the slip table parallel and be equipped with at a distance of between indulge the support and with indulge support vertically horizontal support, indulge all detachably connected with the track on all having set firmly backup pad, two backup pads along its length direction on the support, be equipped with the channel in the two tracks, sliding connection has left slider and right slider respectively in the channel, connecting axle fixed connection is used to left side slider and right slider, still be equipped with first pneumatic cylinder on the slip table, first pneumatic cylinder free end with the connecting axle front end is connected, the connecting axle rear end is equipped with the bracing piece, the bracing piece rear end is equipped with electromagnet, electromagnet is drawn forth with the wire for the starting switch.

The preferred scheme is as follows: a top beam is arranged at the upper end of the upright post, a second hydraulic cylinder is fixedly arranged in the center of the top beam, a square frame body is arranged at the free end of the second hydraulic cylinder, and a pressing plate for pressing and holding the semi-finished refractory material is arranged in the square frame body; when the sliding table is lifted, the second hydraulic cylinder is synchronously contracted.

The preferred scheme is as follows: the second hydraulic cylinder body is connected with a base through a bolt, a sliding bearing is connected in the base, a sliding rod is sleeved in the sliding bearing, and the sliding rod is freely connected with the second hydraulic cylinder and arranged in parallel with the second hydraulic cylinder.

The utility model has the advantages that: the kiln body of the utility model is divided into an upper kiln body layer and a lower kiln body layer, the lower kiln body layer is fired to form a finished product, and the residual heat of the fired product is introduced into the upper kiln body layer to preheat the blank accumulated on the upper kiln body layer, thereby greatly saving energy and space, having good heat source utilization rate and high production efficiency; first conveyor can carry out twice at least drying process for the resistant firebrick that the two-channel conveyor loaded to the kiln car upper yard, has guaranteed the resistant firebrick on the kiln car fully dry, has effectively prevented the thermal crack phenomenon in the stage of firing that the drying is insufficient to lead to, secondly, the utility model discloses ingenious blank handling device and the last supplementary unloader that has set up carry out inseparable relation with kiln body upper strata and kiln body lower floor, have greatly changed current firing technology for product production efficiency improves 2-3 times at least.

Drawings

FIG. 1 is a schematic structural view of a double-layer push plate type tunnel kiln for firing refractory bricks;

FIG. 2 is a schematic structural view of a double-layer push plate type tunnel kiln for firing refractory balls;

FIG. 3 is a schematic view of a hot air guiding structure;

FIG. 4 is a schematic view of a blank handling apparatus;

FIG. 5 is a schematic view of a connection structure of a rail and a sliding table;

FIG. 6 is a schematic view of a connection structure between the slide rod and the second cylinder.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in the figure, the double-layer push plate type tunnel kiln for refractory materials comprises a kiln body 22, wherein the kiln body 22 is divided into an upper kiln body layer 221 and a lower kiln body layer 222, one end of the kiln body 22 is provided with a blank loading and unloading device, the other end of the kiln body 22 is provided with an auxiliary unloading device 23, and the auxiliary unloading device 23 is used for placing a blank in the upper kiln body layer 221 in the lower kiln body layer 222; kiln body lower floor 222 is equipped with wind channel 24, wind channel 24 pass through blast gate 25 and draught fan 26 and induced duct 27 with kiln body upper strata 221 link up, kiln body upper strata 221 and kiln body lower floor 222 are equipped with first conveyor 28 and second conveyor 29 opposite in direction of motion respectively, kiln body lower floor 222 still is equipped with heating device.

The working principle is as follows: the lower layer 222 of the kiln body is further provided with a heating device, such as a natural gas heating device or an electric heating device, which is not described in detail herein for the prior art. Under the action of the heating device, the kiln body lower layer 222 fires the blank after preheating and drying the kiln body upper layer 221, and meanwhile, the redundant heat of the kiln body lower layer 222 is transmitted to the kiln body upper layer 221 through the air valve 25, the induced draft fan 26 and the induced draft pipe 27 to continuously preheat and dry a new blank supplied by the blank loading and unloading device.

Different refractory materials require different drying times, such as refractory balls, which are easily dried with a short preheating time, and refractory bricks, which are the opposite.

When the refractory balls need to be fired, the first conveying device 28 is a single-channel conveying device, and includes a chain transmission device 281 and a burning bearing plate 282 arranged on a chain, at this time, the auxiliary blanking device 23 includes a material containing hopper 231 and a material distributing cylinder 232 arranged in the material containing hopper 231 in a radiation manner, and the lower end of the material distributing cylinder 232 is hinged with a valve plate 233. The receiving hopper 231 receives the dried blank falling from the burning board 282 and conveys the dried blank into the lower kiln body layer 222 through the material separating barrel 232. The refractory balls dry faster than they sinter and the hinged valve plate 233 can be controlled to open all or part of the plurality of dispensing cartridges 232 to adaptively adjust the amount of material to be dispensed.

When refractory bricks are required to be fired, the first conveying device 28 is a double-channel conveying device and comprises two pairs of upper rails 283 arranged in parallel, kiln cars 284 arranged on the upper rails 283, an upper traction device 285 arranged in the upper rails 283 and used for drawing the kiln cars 284 to move, and a transverse hydraulic mechanism 286 used for transversely transferring the kiln cars 284, wherein the transverse hydraulic mechanism 286 is used for transferring the kiln cars 284 from one upper rail 283 to the other upper rail 283. The transverse hydraulic mechanism 286 may be implemented by a hydraulic lift in cooperation with a single-rod hydraulic cylinder, which is not described again in the prior art. The new blank is lifted to an upper rail 283 by the blank handling device, the kiln car 284 moves under an upper traction device 285, when the movement is finished, the transverse hydraulic mechanism 286 receives the kiln car 284 and moves transversely, the kiln car 284 is placed on another upper rail 283 to return to the blank handling device again, and the blank is turned to the lower layer 222 of the kiln body by the blank handling device to be fired.

Preferentially, blank handling device, including at least two stand 1 that set up relatively, along stand 1 axial up-and-down motion's slip table 2 and be used for driving drive arrangement 3 and the hydraulic control system of slip table 2 motion, slip table 2 goes up to be parallel and establishes support 4 and with indulging support 4 vertically horizontal support 5 apart from each other, indulge on the support 4 along all set firmly backup pad 6, all releasable connection have track 7 on two backup pads 6 along its length direction, be equipped with channel 8 in the two track 7, sliding connection has left slider 9 and right slider 10 respectively in the channel 8, left slider 9 and right slider 10 are with connecting axle 11 fixed connection, still be equipped with first pneumatic cylinder 12 on the slip table 2, first pneumatic cylinder 12 free end with connecting axle 11 front end is connected, connecting axle 11 rear end is equipped with bracing piece 13, bracing piece 13 rear end is equipped with electromagnet 14, the electromagnetic chuck 14 starts the switch and is led out by a lead. Preferably, the drive means 3 for driving the movement of the slide 2 is preferably a hydraulic drive means 3, wherein the hydraulic drive means 3 is of prior art.

When the kiln car is used, the first hydraulic cylinder 12 drives the connecting shaft 11 to enable the connecting shaft 11 and the sliding block to move together, the electromagnetic chuck 14 on the supporting rod 13 is close to the kiln car 284, the electromagnetic chuck 14 is electrified through a switch to firmly adsorb the kiln car 284, then the free end of the first hydraulic cylinder 12 is controlled to be retracted through the hydraulic control system, and the kiln car 284 is transferred to the sliding table 2. The slide 2 is raised along the upright 1 by the hydraulic drive 3 until the rails 7 abut against the guide rails at the designated positions, then the free end of the first hydraulic cylinder 12 is extended again and the electromagnetic chuck 14 is opened and closed, and the kiln car 284 is unloaded from the slide 2. It is thus clear that compare driven lifting machine, this the utility model discloses it is fast to load or uninstallation kiln car 284, has improved production efficiency, has reduced intensity of labour. The utility model discloses a kiln car 284, including stand 1,

top beam

15, 16, four directions frameworks 17 are equipped with in the square framework 17 and are used for pressing and hold the finished clamp plate 19 of nai material handling finished product is in the in-process that slip table 2 rose, the nai material semi-manufactured goods or the finished product that bear on kiln car 284 are pressed and are held to clamp plate 19, even if slide 2 rises fast this moment, the nai material on the kiln car 284 also can not drop. Compare its moving speed that can accelerate slide 2 of traditional lifting machine, so the utility model discloses not only can improve durable semi-manufactured goods turnover efficiency can prevent its damage that drops and lead to moreover. Further, a base 20 is connected to the cylinder body of the second hydraulic cylinder 16 through a bolt, a sliding bearing (not shown) is connected in the base 20, a sliding rod 21 is sleeved in the sliding bearing, and the sliding rod 21 and the second hydraulic cylinder 16 are freely connected and arranged in parallel. The slide rod 21 ensures the verticality of the movement of the pressing plate, and avoids the situation that the pressing plate 19 rotates to bring out the refractory semi-finished product from the stacking body and fall.

Above-mentioned scheme drive arrangement is hydraulic drive device, realizes two synchronous hydraulic drive devices of pneumatic cylinder promptly and can be applicable to the utility model discloses and prior art in addition, no longer give consideration to here again.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a double-deck push pedal formula tunnel cave for refractory material, includes the kiln body, the kiln body falls into two-layer kiln body upper strata and kiln body lower floor, its characterized in that: a blank loading and unloading device is arranged at one end of the kiln body, an auxiliary blanking device is arranged at the other end of the kiln body, and the blank in the upper layer of the kiln body is placed in the lower layer of the kiln body by the auxiliary blanking device; kiln body lower floor is equipped with the wind channel, the wind channel pass through blast gate, draught fan and induced duct with kiln body upper strata link up, kiln body upper strata and kiln body lower floor are equipped with first conveyor and the second conveyor opposite in direction of motion respectively, kiln body lower floor still is equipped with heating device.

2. The double-deck push plate type tunnel kiln for refractory according to claim 1, wherein: first conveyor is single track conveyor, and it includes chain drive and locates the board that holds on the chain, supplementary unloader is including being used for accepting the hopper that holds the dry blank of burning board whereabouts and the radioactive feed cylinder of locating the hopper, the feed cylinder lower extreme articulates there is the valve plate.

3. The double-deck push plate type tunnel kiln for refractory according to claim 1, wherein: the first conveying device is a double-channel conveying device and comprises two pairs of upper rails arranged in parallel, a kiln car arranged on the upper rails, an upper traction device arranged in the upper rails and used for traction of the kiln car to move, and a transverse hydraulic mechanism used for transversely transferring the kiln car, wherein the transverse hydraulic mechanism is used for transferring the kiln car from one upper rail to the other upper rail.

4. The double-deck push plate type tunnel kiln for refractory according to claim 1, wherein: blank handling device, including two at least relative stands that set up, along stand axial up-and-down motion's slip table and be used for driving drive arrangement and the hydraulic control system of slip table motion, be on the slip table parallel and be equipped with at a distance of between indulge the support and with indulge support vertically horizontal support, indulge all detachably connected with the track on all having set firmly backup pad, two backup pad along its length direction on the support, two be equipped with the channel in the track, sliding connection has left slider and right slider respectively in the channel, connecting axle fixed connection is used to left side slider and right slider, still be equipped with first pneumatic cylinder on the slip table, first pneumatic cylinder free end with the connecting axle front end is connected, the connecting axle rear end is equipped with the bracing piece, the bracing piece rear end is equipped with electromagnet, electromagnet is drawn forth with the wire for the starting switch.

5. The double-deck push plate type tunnel kiln for refractory according to claim 4, wherein: a top beam is arranged at the upper end of the upright post, a second hydraulic cylinder is fixedly arranged in the center of the top beam, a square frame body is arranged at the free end of the second hydraulic cylinder, and a pressing plate for pressing and holding a semi-finished refractory material is arranged in the square frame body; when the sliding table is lifted, the second hydraulic cylinder is synchronously contracted.

6. The double-deck push plate type tunnel kiln for refractory according to claim 5, wherein: the second hydraulic cylinder body is connected with a base through a bolt, a sliding bearing is connected in the base, a sliding rod is sleeved in the sliding bearing, and the sliding rod is freely connected with the second hydraulic cylinder and arranged in parallel with the second hydraulic cylinder.