CN210663859U

CN210663859U - Energy-saving double-layer roller kiln without partition plate

Info

Publication number: CN210663859U
Application number: CN201921427732.3U
Authority: CN
Inventors: 熊亮; 桂海军; 陈军; 荆海山; 陶志坚
Original assignee: Foshan Dlt Technology Co ltd
Current assignee: Foshan Dlt Technology Co ltd
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2020-06-02
Anticipated expiration: 2029-08-28

Abstract

The utility model discloses an energy-saving type clapboard-free double-layer roller kiln, which comprises a smoke discharge area, a preheating area, a burning area, a quenching area, a slow cooling area and a tail cooling area which are arranged in sequence, wherein cavities are arranged in the smoke discharge area, the preheating area, the burning area, the quenching area, the slow cooling area and the tail cooling area, each cavity is provided with an upper layer roller conveyor and a lower layer roller conveyor from top to bottom, a first combustion control group, a second combustion control group and a third combustion control group are arranged in the cavity of the burning area from top to bottom in sequence, the first combustion control group is arranged above the upper layer roller conveyor, the second combustion control group is arranged between the upper layer roller conveyor and the lower layer roller conveyor, the third combustion control group is arranged below the lower layer roller conveyor, the utility model discloses a kiln without a separating layer, and two kiln yields are produced by utilizing the area of one kiln, greatly improves the sintering efficiency and the heat utilization rate.

Description

Energy-saving double-layer roller kiln without partition plate

Technical Field

The utility model relates to a kiln especially relates to a double-deck roller kilns of energy-saving no baffle.

Background

In recent years, with the influence of factors such as increasingly tense land, rising energy price and labor cost, the production cost of ceramics is rising, and a kiln with low one-time investment and low operation cost is urgently needed by ceramic enterprises to reduce the manufacturing cost and enhance the competitive power. The green body is in a free running state on the surface of the roller after entering the kiln, and because a constraint mechanism such as a ceramic baffle is difficult to arrange, the green body can be softened at high temperature of the roller kiln, so that the kiln is difficult to be infinitely lengthened, and if the green body is too long, the green brick can collide with the wall to cause the kiln blockage accident; the roller for conveying the green body is supported by two points, and the kiln width is limited by bearing, temperature difference and the like; the technological characteristics of ceramic sintering also determine that a certain sintering period is necessary, and the ceramic sintering cannot be accelerated infinitely. These factors make it difficult for the single-layer roller kilns to meet the above requirements of ceramic enterprises, and therefore, it is necessary to develop a double-layer roller kiln. Compared with a single layer, the double-layer structure has the advantages that the yield is doubled at least under the same condition, the occupied area can be reduced by more than 50%, and the cost of labor, energy and the like is not increased in proportion.

At present, a few double-layer roller kilns are available in the market, but the double-layer roller kilns are generally required to be separated by an interlayer. Problems with interlayers: the occupied position can increase the floor height, so that the heat dissipation area of the wall body is increased; the interlayer material needs to absorb a large amount of heat energy in the temperature rising and falling process, so that energy waste is caused; the support beam of the interlayer is stressed for a long time at high temperature, only two ends are fixed, and the possibility of fracture and collapse exists; the manufacturing cost of the interlayer material is high.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: there is a need for an energy-saving partition-free double-layer roller kiln which can be divided into double-layer production without a partition layer.

The utility model provides a solution of its technical problem is: the utility model provides an energy-saving double-deck roller kilns of no baffle, is including arranging row's smoke zone, preheating zone, burning district, quench zone, slow cooling district, the tail cooling district that sets up in proper order, all be provided with the cavity in row's smoke zone, preheating zone, burning district, quench zone, slow cooling district, the tail cooling district, every the cavity all is provided with upper rollgang, lower floor rollgang from top to bottom, first burning control group, second burning control group, third burning control group have set gradually from top to bottom in the cavity of burning district, first burning control group set up in upper rollgang's top, the second burning control group set up in upper rollgang with between the rollgang of lower floor, the third burning control group set up in the below of lower floor rollgang.

As a further improvement of the above technical scheme, the first combustion control group, the second combustion control group and the third combustion control group all have independent temperature control structures, each independent temperature control structure includes a gas pipeline, each independent temperature control structure further includes a manual valve, an electromagnetic valve, a pressure stabilizing valve, an electric valve and a burner, the manual valve, the electromagnetic valve, the pressure stabilizing valve, the electric valve and the burners are arranged on the gas pipeline, the burners are connected with outlets of the gas pipelines, the burners are arranged on two side walls of a cavity of a firing area, the burner of the first combustion control group located on one side wall of the cavity is a first burner, the burner of the first combustion control group located on the other side wall of the cavity is a second burner, the first burner and the second burner are both located above the upper layer conveying roller way and are uniformly arranged in the length extension direction of the upper layer conveying roller way, and all the first burners and all the second burners are staggered on the same, the end parts of the first burner and the second burner are provided with flame spraying holes, a first combustion-supporting air pipe is arranged in the burning area, and the first combustion-supporting air pipe is connected with all the first burner and the second burner through pipelines.

As a further improvement of the above technical solution, the burners of the second combustion control group located on one side wall of the cavity are third burners, the burners of the second combustion control group located on the other side wall of the cavity are fourth burners, the third burners and the fourth burners are both located between the upper-layer rollgang and the lower-layer rollgang, the third burners and the fourth burners are both uniformly provided with a plurality of burners along the length extension direction of the upper-layer rollgang, all the third burners and all the fourth burners are staggered on the same horizontal plane, the end portions and the outer side walls of the third burners and the fourth burners are both provided with fire-spraying holes, a second combustion-supporting air pipe is arranged in the combustion area, and the second combustion-supporting air pipe is respectively connected to all the third burners and the fourth burners through pipelines.

As a further improvement of the above technical scheme, the burners of the third combustion control group located on one side wall of the cavity are fifth burners, the burners of the third combustion control group located on the other side wall of the cavity are sixth burners, the fifth burners and the sixth burners are located below the lower-layer conveying roller way and are uniformly provided with a plurality of burners along the length extension direction of the lower-layer conveying roller way, all the fifth burners and all the sixth burners are staggered on the same horizontal plane, the end portions of the fifth burners and the sixth burners are provided with fire-spraying holes, and the second combustion-supporting air pipes are respectively connected to all the fifth burners and the sixth burners through pipelines.

As a further improvement of the above technical solution, a smoke exhaust system is arranged in a cavity of the smoke exhaust area, the smoke exhaust system comprises an upper flue, a lower flue, a middle branch flue, a lower drop tube, a main smoke pipe, a smoke exhaust fan and a chimney, the upper flue is arranged on one side wall of the cavity and above the upper layer conveying roller way, the lower flue is arranged on one side wall of the cavity and below the lower layer conveying roller way, the middle branch flue is arranged on one side wall of the cavity and between the upper layer conveying roller way and the lower layer conveying roller way, the upper flue, the lower flue and the middle branch flue are all communicated with the main smoke pipe through the lower drop tube, the main smoke pipe is connected to an air inlet of the smoke exhaust fan through a pipeline, and an air outlet of the smoke exhaust fan is connected to the chimney through a pipeline, the smoke exhaust fan is provided with at least one smoke exhaust fan.

As a further improvement of the above technical scheme, the smoke exhaust area, the preheating area, the firing area and the quenching area all include a kiln body frame, each the inside wall of the kiln body frame is provided with a side wall cotton plate and a side wall light brick layer in sequence from outside to inside, each the inner bottom wall of the kiln body frame is provided with a bottom wall light brick layer and each the top of the kiln body frame is uniformly provided with a plurality of lifting hooks, each the bottom of each lifting hook is provided with a lifting frame, each lifting frame is connected with a lifting rail at the bottom side in a clamping manner, two adjacent lifting rails are connected with a top wall hollow plate between the lifting rails, the top wall hollow plate is provided with a top wall heat insulation cotton layer, each top wall hollow plate in the kiln body frame forms a heat insulation top surface, and the side wall light brick layer, the bottom wall light brick layer and the heat insulation top surface enclose the cavity.

As a further improvement of the above technical solution, any two adjacent in the preheating zone, the firing zone and the quenching zone are provided with positioning light bricks, two positioning light bricks are provided with gaps therebetween, a fire baffle is provided in the gap, the fire baffle is provided with sealing cotton between the positioning light bricks, a flue gas channel is provided between the bottom side of the fire baffle and the upper layer conveying roller way, the top of the kiln body frame in the preheating zone, the firing zone and the quenching zone is provided with a mounting rack, a plurality of adjusting holes are provided in the mounting rack along the vertical direction, and round steel is inserted into at least one adjusting hole and fixes the fire baffle on the mounting rack.

As a further improvement of the above technical scheme, the muffle roller rods are arranged in the cavities of the preheating zone, the firing zone and the quenching zone, the muffle roller rods are arranged between the upper-layer conveying roller way and the lower-layer conveying roller way, the side walls of the cavities of the preheating zone, the firing zone and the quenching zone are provided with stainless steel frames, the muffle roller rods are arranged in the vertical direction, each muffle roller rod of the cavity penetrates through the cavity in which the muffle roller rod is arranged and is fixedly arranged on the stainless steel frame of the cavity, tampons are filled in the two ends of each muffle roller rod, and the muffle roller rods and the fire baffle plates are positioned on the same vertical plane.

As a further improvement of the technical scheme, the bottom wall of the cavity is provided with a fire-blocking wall, the top surface of the fire-blocking wall is provided with a diagonal plane, and the fire-blocking wall and the flame-proof roller rod are positioned on the same vertical plane.

As a further improvement of the above technical solution, a quenching component is disposed in the cavity of the quenching zone, the quenching component includes an upper blowing pipe, a middle blowing pipe, a lower blowing pipe, an air inlet pipe, and an air supply fan, the upper blowing pipe is inserted into the inner sidewall of the cavity and located above the upper-layer conveying roller way, the middle blowing pipe is inserted into the inner sidewall of the cavity and located between the upper-layer conveying roller way and the lower-layer conveying roller way, the lower blowing pipe is inserted into the inner sidewall of the cavity and located below the lower-layer conveying roller way, the upper blowing pipe, the middle blowing pipe, and the lower blowing pipe are all communicated with the air outlet of the air supply fan through the air inlet pipe, and a plurality of blowing holes are disposed on the bottom side of the upper blowing pipe, the top side of the middle blowing pipe, the bottom side of the middle blowing pipe, and the top side of the lower blowing pipe along the length.

The utility model has the advantages that: the utility model provides an energy-saving type partition-free double-layer roller kiln, which comprises a smoke exhaust area, a preheating area, a burning area, a quenching area, a slow cooling area and a tail cooling area which are connected in sequence, wherein an upper layer roller conveyor and a lower layer roller conveyor are arranged in a cavity of each area, both the upper layer roller conveyor and the lower layer roller conveyor can be used for conveying products, in order to reduce the temperature interference between the two layer roller conveyors, a first combustion control group for controlling an upper layer green brick is arranged above the upper layer roller conveyor, a third combustion control group for controlling a lower layer green brick is arranged below the lower layer roller conveyor, a second combustion control group for heating the upper layer green brick and the lower layer green brick is arranged between the upper layer roller conveyor and the lower layer roller conveyor, three groups of combustion control groups operate independently, are different from the traditional kiln only provided with one group of combustion control groups, the temperature control adjustment is more accurate, the temperature of each layer green brick is better controlled, the structure is more compact, and no separation layer material absorbs heat, so that the unit energy consumption of the product is greatly reduced.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a side view of a smoke evacuation zone of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;

FIG. 3 is a side view of the firing zone of the present invention;

FIG. 4 is a sectional view taken along line A of FIG. 3;

FIG. 5 is a schematic view of the cross-sectional structure B-B of FIG. 3;

FIG. 6 is a schematic longitudinal sectional view of the firing zone of the present invention;

FIG. 7 is a schematic view of the cross-sectional structure of FIG. 6 at D-D;

fig. 8 is a schematic diagram of the transverse section structure of the tail cooling area of the present invention.

In the drawings: 1-upper-layer conveying roller way, 2-lower-layer conveying roller way, 3-first combustion-supporting air pipe, 4-gas pipeline, 5-first burner, 6-second burner, 7-second combustion-supporting air pipe, 8-thermocouple, 9-third burner, 10-fourth burner, 12-kiln top transverse pipe, 13-fifth burner, 14-sixth burner, 15-upper flue, 16-lower flue, 17-middle flue, 18-lower drop pipe, 19-flue main pipe, 20-smoke exhaust fan, 21-side wall cotton plate, 22-side wall light brick layer, 23-bottom wall light brick layer, 24-lifting hook, 25-lifting rail, 26-top wall hollow plate, 27-top wall heat-insulating cotton layer, 28-positioning light brick, 29-fire baffle plate, 30-sealing cotton, 31-mounting frames, 32-stainless steel frames, 33-flame isolating roller rods, 34-fire retaining walls, 35-inclined planes, 36-upper blowing pipes, 37-middle blowing pipes, 38-lower blowing pipes, 39-air inlet pipes, 40-air supply fans, 41-manual valves, 42-electromagnetic valves, 43-pressure stabilizing valves, 44-electric valves, 45-burner front branch pipes, 46-burner gas hoses and 47-accident holes.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

When the green bricks are manufactured, a smoke exhaust area, a preheating area, a firing area, a quenching area, a slow cooling area and a tail cooling area which are connected in sequence are needed, the smoke exhaust area is mainly used for exhausting mechanical water and adsorbed water in the green bodies after temperature rise, the green bodies do not generate chemical changes and only generate physical changes such as volume shrinkage, water evaporation and the like, the smoke exhaust area is used for exhausting smoke generated by combustion out of a kiln and balancing kiln pressure, heat is continuously released to heat the interior of the kiln in the process that the smoke flows to the smoke exhaust area from high temperature, and the temperature of the smoke exhaust area generally changes between 200 ℃ and 600 ℃; in the preheating zone, the temperature of the green brick is raised from 600 ℃ to about 1050 ℃, and the firing curve is properly adjusted to ensure that the green brick can safely remove structural water and complete the physicochemical reactions such as quartz phase change, organic matter oxidation, carbonate decomposition and the like; in a firing zone, the temperature of a brick blank is raised from 1050 ℃ to the highest firing temperature, salts such as carbonate, sulfate and the like in the brick blank are further decomposed at the stage to complete physical and chemical reactions such as sintering, ceramization and the like, burners are arranged on the upper part and the lower part of each layer of roller rod in the zone in a horizontal direction and in a staggered mode, generally 6 burners or 8 burners/groups form a single automatic control loop, and a plurality of automatic control loops form an automatic temperature control system of a kiln, so that the formulation of a complex firing curve is realized; the main function of the quenching area is rapid cooling, the viscosity of the glass phase in the product at the stage is increased, the glass phase is converted from a plastic state to a solid state, the hardness and the strength are increased to the maximum, the stress generated by the shrinkage of the product can be counteracted due to the existence of a liquid phase, therefore, the direct air blowing and the rapid cooling can be realized, the key area for shortening the firing period in the ceramic production is also provided, in the area, the brick blank is rapidly cooled from the highest firing temperature to about 600 ℃ to finish the rapid cooling, the cold air is uniformly blown in by a thin pipe which passes through the section of the kiln and is drilled with holes, the pipes are uniformly arranged above and below the roller surface product, air is supplied to both ends of each pipe, the air volume of each pipe is finely adjusted by a manual valve arranged in the quenching air pipe area, the air blowing direction can be adjusted by rotating, the temperature in the area can be automatically controlled by a temperature control meter, a frequency converter and a, after the product is discharged from the burning zone, convection heat exchange is carried out through the injected cold air, and quenching can prevent glaze surface crystallization, increase product strength and whiteness, improve product quality and shorten the burning period; the slow cooling zone is divided into a heat exchange zone and a heat pumping zone, the heat exchange zone slowly cools the green brick from 600 ℃ to about 400 ℃ so that the quartz in the green brick slowly finishes the crystal phase transformation, the defect of 'crack' caused by stress of quick cooling is prevented, the heat pumping zone mainly discharges hot air after the rapid cooling, and the temperature of the green brick can be reduced from 400 ℃ to about 300 ℃ through the zone; the tail cold region reduces the adobe temperature from 300 ℃ to the temperature that the kiln needs gradually, adopts the mode cooling of directly blowing into the big amount of wind, sets up the drilling tubule of close packing and aims at the product and bloies about the product, and the cold air that this district will avoid insufflating gets into slow cold region as far as possible. The tail cold area is not provided with a separation layer, the upper layer and the lower layer are communicated, the pipeline is short, the wind pressure loss is small, and the power consumption can be reduced.

Referring to fig. 1-8, an energy-saving double-deck roller kilns without partition plates comprises a smoke discharge zone, a preheating zone, a firing zone, a quenching zone, a slow cooling zone and a tail cooling zone which are sequentially arranged, wherein cavities are respectively arranged in the smoke discharge zone, the preheating zone, the firing zone, the quenching zone, the slow cooling zone and the tail cooling zone, each cavity is provided with an upper-layer conveying roller way 1 and a lower-layer conveying roller way 2 from top to bottom, a first combustion control group, a second combustion control group and a third combustion control group are sequentially arranged in the cavity of the firing zone from top to bottom, the first combustion control group is arranged above the upper-layer conveying roller way 1, the second combustion control group is arranged between the upper-layer conveying roller way 1 and the lower-layer conveying roller way 2, and the third combustion control group is arranged below the lower-layer conveying roller way 2.

From the above, the utility model provides an energy-saving baffle-free double-layer roller kiln, with the length extending direction of the kiln body as vertical, this kiln includes the fume exhaust district that connects gradually, the preheating zone, the district burns, the quench zone, the slow cooling district, the tail cooling district, be equipped with upper rollgang 1 in the cavity of every district, lower floor rollgang 2, upper rollgang 1, lower floor rollgang 2 all can be used for the transported product, in order to reduce the temperature interference between the two-layer rollgang, be equipped with the first burning control group that is used for controlling upper layer adobe above upper rollgang 1, be equipped with the third burning control group that is used for controlling lower floor's adobe below lower floor rollgang 2, be equipped with the second burning control group that is used for heating upper layer adobe and lower floor's adobe simultaneously between upper rollgang 1 and lower floor rollgang 2, three group burning control groups operate independently, only have a set of burning in the kiln of difference from traditional, the temperature control and adjustment are more accurate, the temperature of each layer of green bricks is better controlled, the structure is more compact, and no separation layer material absorbs heat, so that the unit energy consumption of the product is greatly reduced.

As a preferred embodiment, the first combustion control group, the second combustion control group and the third combustion control group are all provided with independent temperature control structures, each independent temperature control structure comprises a gas pipeline 4, each independent temperature control structure further comprises a manual valve 41, an electromagnetic valve 42, a pressure stabilizing valve 43, an electric valve 44 and a burner which are arranged on the gas pipeline 4, the burners are connected with outlets of the gas pipelines 4, the burners are arranged on two side walls of a cavity of the firing area, the burner of the first combustion control group positioned on one side wall of the cavity is a first burner 5, the burner of the first combustion control group positioned on the other side wall of the cavity is a second burner 6, the first burner 5 and the second burner 6 are both positioned above the upper-layer conveying roller way 1 and are uniformly provided with a plurality of burners along the length extension direction of the upper-layer conveying roller way 1, and all the first burners 5 and all the second burners 6 are staggered on the same horizontal plane, the end parts of the first burner 5 and the second burner 6 are provided with fire spraying holes, a first combustion-supporting air pipe 3 is arranged in the burning area, and the first combustion-supporting air pipe 3 is connected with all the first burner 5 and the second burner 6 through pipelines. The gas pipeline 4 is connected with the fuel ports of the first burner 5 and the second burner 6 through pipelines and supplies gas, the first combustion-supporting air pipe 3 is connected with the air inlets of the first burner 5 and the second burner 6 through pipelines and supplies combustion-supporting air, the kiln body frame is provided with a kiln top transverse pipe 12, each independent temperature control mechanism also comprises a thermocouple 8 arranged on the inner wall of the cavity, when heating is carried out, the manual valve 41 and the electromagnetic valve 42 are opened, the gas sequentially enters the burner front branch pipes 45 from two sides of the gas pipeline 4 and the kiln top transverse pipe 12 and respectively enters the burners through burner gas hoses 46, and the thermocouple 8 can monitor the temperature in the cavity; the manual valve 41 can manually control the supply and disconnection of fuel gas, so as to play a role in safety protection, preferably, the manual valve 41 can be a copper ball valve; the electromagnetic valve 42 can electrically control the supply and the disconnection of fuel gas, and plays a role in safety protection; the electric valve 44 can automatically adjust the size of the fuel gas according to the temperature signal so as to control the temperature; the pressure stabilizing valve 43 can reduce temperature fluctuation caused by gas change, and even if the gas pressure is increased or reduced, the temperature fluctuation in the kiln is small.

Further as a preferred embodiment, the burner of the second combustion control group positioned on one side wall of the cavity is a third burner 9, the burner of the second combustion control group positioned on the other side wall of the cavity is a fourth burner 10, the third burner 9 and the fourth burner 10 are both positioned between the upper layer rollgang 1 and the lower layer rollgang 2, a plurality of third burners 9 and a plurality of fourth burners 10 are uniformly arranged along the length extension direction of the upper-layer conveying roller way 1, all the third burners 9 and all the fourth burners 10 are staggered on the same horizontal plane, the end parts and the outer side walls of the third burner 9 and the fourth burner 10 are provided with flame-spraying holes, a second combustion-supporting air pipe 7 is arranged in the burning area, and the second combustion-supporting air pipe 7 is respectively connected with all the third burners 9 and the fourth burners 10 through pipelines. The gas pipeline 4 is connected to the fuel ports of the third burner 9 and the fourth burner 10 through pipelines and provides gas, and the second combustion-supporting air pipe 7 is connected to the air inlets of the third burner 9 and the fourth burner 10 through pipelines and provides combustion-supporting air. Because the third burner 9, the fourth burner 10 is the upper rollgang 1 at the same time, the adobe of the lower rollgang 2 is heated, except setting up the rational heating distance, still can set up the third burner 9, the carborundum combustion chamber extension of the fourth burner 10, set up the flame projecting hole in the export lateral wall, namely the third burner 9, the fourth burner 10 can be except that the level sprays flame in the kiln, still can adjust the installation direction according to the temperature situation in the kiln, let outer wall flame projecting hole department upwards or spout flame downwards, in order to compensate heat not enough between upper rollgang 1 and the lower rollgang 2, the radiating region outside the side wall, adjust the firing temperature better, the third burner 9 with flame projecting hole, the fourth burner 10 can with the third burner 9 without flame projecting hole, the fourth burner 10 is separated and set up, it is more reasonable to arrange.

As a preferred embodiment, the burners of the third combustion control group located on one side wall of the cavity are fifth burners 13, the burners of the third combustion control group located on the other side wall of the cavity are sixth burners 14, the fifth burners 13 and the sixth burners 14 are located below the lower-layer conveying roller bed 2 and are uniformly provided with a plurality of burners along the length extension direction of the lower-layer conveying roller bed 2, all the fifth burners 13 and all the sixth burners 14 are staggered on the same horizontal plane, the end portions of the fifth burners 13 and the sixth burners 14 are provided with fire-spraying holes, and the second combustion-supporting air pipes 7 are respectively connected to all the fifth burners 13 and the sixth burners 14 through pipelines. The gas pipeline 4 is connected to the fuel ports of the fifth burner 13 and the sixth burner 14 through pipelines and provides gas, and the second combustion-supporting air pipe 7 is connected to the air inlets of the fifth burner 13 and the sixth burner 14 through pipelines and provides combustion-supporting air.

Through the regulation of the independent temperature control mechanism in each combustion control group, the temperature above the upper-layer rollgang 1 can be independently controlled by the first combustion control group, the temperature between the upper-layer rollgang 1 and the lower-layer rollgang 2 can be independently controlled by the second combustion control group, and the temperature below the lower-layer rollgang 2 can be independently controlled by the third combustion control group.

In some embodiments, according to the characteristics of the sintering process that the lower part of the green brick is sintered at a higher temperature than the upper part of the green brick, the distance between the central lines of the third and fourth burners 10 and the green brick at the lower layer is greater than that between the central lines of the third and fourth burners and the green brick at the upper layer, and the high-temperature region with the radiation heat transfer as the main part can meet the temperature requirements of the green bricks at the upper and.

Further as a preferred embodiment, a smoke exhaust system is arranged in a cavity of the smoke exhaust area, the smoke exhaust system includes an upper flue 15, a lower flue 16, a middle branch flue 17, a falling pipe 18, a main flue 19, a smoke exhaust fan 20, and a chimney, the upper flue 15 is arranged on a side wall of the cavity and above the upper-layer conveying roller table 1, the lower flue 16 is arranged on a side wall of the cavity and below the lower-layer conveying roller table 2, the middle branch flue 17 is arranged on a side wall of the cavity and between the upper-layer conveying roller table 1 and the lower-layer conveying roller table 2, the upper flue 15, the lower flue 16, and the middle branch flue 17 are all communicated with the main flue 19 through the falling pipe 18, the main flue 19 is connected to an air inlet of the smoke exhaust fan 20 through a pipeline, and an air outlet of the smoke exhaust fan 20 is connected to the chimney through a pipeline, the smoke exhaust fan 20 is provided with at least one fan. The smoke in the smoke exhaust area cavity is respectively gathered into a falling pipe 18 from an upper smoke flue 15, a lower smoke flue 16 and a middle branch flue 17, the smoke is extracted by a smoke exhaust fan 20 after passing through a smoke main pipe 19 and is exhausted from a chimney, in normal production, the smoke in the kiln is exhausted by only one smoke exhaust fan 20, the size of the smoke volume and the air flow in the kiln are controlled by valves in the upper smoke flue 15, the lower smoke flue 16 and the middle branch flue 17, in addition, a spare smoke exhaust fan 20 is arranged, when the original smoke exhaust fan 20 is damaged, the smoke exhaust fan 20 is closed, and the other spare smoke exhaust fan 20 is opened.

Further as a preferred embodiment, the smoke exhaust area, the preheating area, the firing area and the quenching area all include kiln body frames, each of the inner side walls of the kiln body frames is sequentially provided with a side wall cotton plate 21 and a side wall light brick layer 22 from outside to inside, each of the inner bottom walls of the kiln body frames is provided with a bottom wall light brick layer 23, each of the inner top walls of the kiln body frames is uniformly provided with a plurality of lifting hooks 24, the bottom sides of the lifting hooks 24 are fixedly connected with lifting frames, the bottom sides of the lifting frames are clamped with lifting rails 25, a top wall hollow plate 26 is connected between every two adjacent lifting rails 25, the top wall hollow plate 26 is provided with a top wall heat insulation cotton layer 27, each of the top wall hollow plates 26 in the kiln body frames forms a heat insulation top surface, and the side wall light brick layers 22, the bottom wall light brick layers 23 and the heat insulation top surface enclose the cavity. Preferably, the side wall cotton plate 21, the side wall light brick layer 22, the bottom wall light brick layer 23 and the top wall heat insulation cotton layer 27 are made of high-temperature-resistant materials, and the top wall hollow plate 26 is a cordierite-mullite hollow plate.

In some embodiments, after the temperature in the kiln rises, the metal frame of the kiln body frame can generate displacement due to expansion and contraction, and if the metal frame is fixed between each module section, the metal frame can be mutually extruded and deformed to damage the kiln body. The kiln is not provided with kiln feet, a roller and other parts at the lower part of each kiln section so as to facilitate the integral movement of the kiln frame, a frame is generally fixed in a high-temperature area, namely, the kiln frames on two sides move towards two sides respectively after heating up and retract automatically after cooling down on the basis of the frame. The gap is generally set to be about 100mm at the joint of the two ends and the kiln inlet and outlet machines, so that the kiln inlet and outlet machines are prevented from being damaged by the frame of the kiln body after being heated.

Further as preferred embodiment, arbitrary two are adjacent in preheating zone, burning zone, quench zone all be provided with location light brick 28 on the hanger rail 25, two be provided with the clearance between the location light brick 28, be provided with fire damper 29 in the clearance, fire damper 29 with be provided with sealed cotton 30 between the location light brick 28, fire damper 29's bottom side with be provided with the flue gas passageway between the upper strata rollgang 1, in preheating zone, burning zone, the quench zone kiln body frame top is provided with mounting bracket 31, be provided with a plurality of regulation hole along vertical direction on the mounting bracket 31, it has round steel and will to alternate in at least one regulation hole fire damper 29 is fixed in mounting bracket 31. The height of the fire baffle plate 29 can be changed by changing the position of the round steel penetrating into the adjusting hole, the distance between the fire baffle plate 29 and the product on the upper-layer conveying roller way 1 between the high-temperature area and the quenching area is generally less than 80m, so that the temperature fluctuation or the energy consumption caused by the fact that quenching air flows into the high-temperature area is reduced, and the defects of smoking, color difference and the like of the product caused by the fact that high-temperature smoke flows into the cooling area can be prevented.

Further as a preferred embodiment, the cavity of the preheating zone, the firing zone and the quenching zone is internally provided with a muffle roller rod 33, the muffle roller rod 33 is arranged between the upper-layer rollgang 1 and the lower-layer rollgang 2, the side walls of the cavity of the preheating zone, the firing zone and the quenching zone are provided with a stainless steel frame 32, the muffle roller rods 33 are arranged along the vertical direction and provided with a plurality of rods, the muffle roller rod 33 of each cavity respectively penetrates through the cavity where the muffle roller rod is arranged and is fixedly arranged on the stainless steel frame 32 of the cavity, tampons are filled in the two ends of the muffle roller rods 33, and the muffle roller rods 33 and the flame baffle plate 29 are positioned on the same vertical surface. When the distance between the upper-layer rollgang 1, the lower-layer rollgang 2 and the muffle roller rods 33 needs to be changed, the positions and the number of the muffle roller rods 33 arranged on the stainless steel frame 32 are adjusted.

Further as a preferred embodiment, the bottom walls of the cavities of the preheating zone, the firing zone and the quenching zone are provided with fire-blocking walls 34, the top surfaces of the fire-blocking walls 34 are provided with beveled surfaces 35, and the fire-blocking walls 34 and the flame-proof roller rods 33 are located on the same vertical plane. The inclined plane 35 can be opposite to the smoke direction to reduce smoke resistance, the fire-blocking wall 34 is formed by stacking light bricks, and the distance between the lower-layer conveying roller table 2 and the fire-blocking wall 34 is determined by the height formed by stacking the light bricks on the fire-blocking wall 34.

The fire baffle plate 29, the flame isolating roller rod 33 and the fire baffle wall 34 are all through reducing the section of discharging fume, when the flue gas flowing to the kiln head meets the narrow section of flowing through of the fire baffle plate 29, the flame isolating roller rod 33 and the fire baffle wall 34, the flue gas is blocked, part of the flue gas flows out, part of the flue gas returns, and the returned flue gas can form stirring effect and change the internal heat distribution so as to reduce the temperature difference in the kiln.

Further as a preferred embodiment, a quenching component is arranged in the cavity of the quenching area, the quenching component comprises an upper blowpipe 36, a middle blowpipe 37, a lower blowpipe 38, an air inlet pipe 39 and a fan 40, the upper blowpipe 36 is inserted into the inner side wall of the cavity and positioned above the upper-layer conveying roller way 1, the middle blowpipe 37 is inserted into the inner side wall of the cavity and positioned between the upper layer rollgang 1 and the lower layer rollgang 2, the lower blowpipe 38 is inserted into the inner side wall of the cavity and positioned below the lower-layer conveying roller way 2, the upper blowpipe 36, the middle blowpipe 37 and the lower blowpipe 38 are all communicated with the air outlet of the air supply fan 40 through the air inlet pipe 39, the bottom side of the upper blowing pipe 36, the top side of the middle blowing pipe 37, the bottom side and the top side of the lower blowing pipe 38 are provided with a plurality of blowing holes along the length direction thereof. The upper blowpipe 36 blows directly downwards through blowholes to blow products on the upper-layer rollgang 1, the middle blowpipe 37 blows directly upwards and downwards through blowholes, meanwhile, the products on the upper-layer rollgang 1 and the lower-layer rollgang 2 are blown, and the lower blowpipe 38 blows directly upwards through blowholes to blow products on the lower-layer rollgang 2.

Still be provided with exhaust manifold in the cavity in quench zone, exhaust manifold sets up respectively in the top of upper rollgang 1, between upper rollgang 1 and the lower floor rollgang 2, the below of lower floor rollgang 2 to communicate in the suction opening of air exhauster through the exhaust column.

Upper rollgang 1 includes upper driving motor, set up in first conveying roller in the cavity, first conveying roller is followed the length direction align to grid of cavity is provided with a plurality of, upper driving motor and transmission system and all first conveying roller transmission is connected, lower floor's rollgang 2 includes lower floor's driving motor and transmission system, set up in second conveying roller in the cavity, the second conveying roller is followed the length direction align to grid of cavity is provided with a plurality of, lower floor's driving motor and all second conveying roller transmission is connected. The adobe is placed on first conveying roller, on the second conveying roller to the propelling movement forward, it is specific, the first conveying roller in every firing cavity is driven by upper driving motor and transmission system, the first conveying roller in every regional cavity is driven by a plurality of upper driving motor and transmission system, the realization is with the adobe propelling movement, the drive structure of same second conveying roller is the same with the drive structure of first conveying roller, independent control respectively and carry the product.

In some embodiments, accident holes 47 are formed in the upper part and the bottom of the kiln of the two layers of conveying roller ways, and the accident holes 47 formed in the conveying roller ways can be used for checking the running condition of green bricks and processing stacked bricks; the emergency hole 47 arranged at the bottom of the kiln can directly process and clean waste residues caused by broken roller brick falling accidents, the outer wall of the kiln body frame is provided with an installation frame of an emergency stay cord, the emergency stay cord is arranged along the length direction of the kiln, and when an emergency accident occurs, the emergency stay cord is pulled at any position of the edge of the kiln, so that a transmission system can be stopped and the emergency stay cord can be processed emergently, and the accident is prevented from being enlarged.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. The utility model provides an energy-saving does not have double-deck roller kilns of baffle which characterized in that: including arranging fume exhaust zone, preheating zone, burning district, quench zone, slow cooling district, the tail cooling district that sets up in proper order, all be provided with the cavity in fume exhaust zone, preheating zone, burning district, quench zone, slow cooling district, the tail cooling district, every the cavity all is provided with upper rollgang, lower floor rollgang from top to bottom, first burning control group, second burning control group, third burning control group have set gradually from top to bottom in the cavity of burning district, first burning control group set up in the top of upper rollgang, the second burning control group set up in upper rollgang with between the rollgang of lower floor, the third burning control group set up in the below of lower floor rollgang.

2. The energy-saving partition-free double-layer roller kiln as claimed in claim 1, wherein: the first combustion control group, the second combustion control group and the third combustion control group are all provided with independent temperature control structures, each independent temperature control structure comprises a gas pipeline, each independent temperature control structure further comprises a manual valve, an electromagnetic valve, a pressure stabilizing valve, an electrically operated valve and a burner, the manual valve, the electromagnetic valves, the pressure stabilizing valves, the electrically operated valves and the burners are arranged on the gas pipelines, the burners are connected with outlets of the gas pipelines, the burners are arranged on two side walls of a cavity of a firing area, the burners of the first combustion control group located on one side wall of the cavity are first burners, the burners of the first combustion control group located on the other side wall of the cavity are second burners, the first burners and the second burners are both located above the upper layer conveying roller way and are uniformly arranged along the length extension direction of the upper layer conveying roller way, all the first burners and all the second burners are arranged on the same horizontal plane in a staggered, The end part of the second burner is provided with a flame spraying hole, a first combustion-supporting air pipe is arranged in the burning area, and the first combustion-supporting air pipe is connected with all the first burners and the second burners through pipelines.

3. The energy-saving partition-free double-layer roller kiln as claimed in claim 2, wherein: the burner of the second combustion control group located on one side wall of the cavity is a third burner, the burner of the second combustion control group located on the other side wall of the cavity is a fourth burner, the third burner and the fourth burner are located between the upper layer conveying roller way and the lower layer conveying roller way, the third burner and the fourth burner are uniformly arranged along the length extension direction of the upper layer conveying roller way, all the third burner and all the fourth burners are arranged on the same horizontal plane in a staggered mode, fire spraying holes are formed in the end portions and the outer side wall of the third burner and the fourth burner, a second combustion-supporting air pipe is arranged in the combustion area, and the second combustion-supporting air pipe is connected to all the third burner and the fourth burner through pipelines.

4. The energy-saving partition-free double-layer roller kiln according to claim 3, characterized in that: the burner of the third combustion control group located on one side wall of the cavity is a fifth burner, the burner of the third combustion control group located on the other side wall of the cavity is a sixth burner, the fifth burner and the sixth burner are located below the lower-layer conveying roller way and along the length extending direction of the lower-layer conveying roller way, a plurality of burners are evenly arranged on the fifth burner and all the sixth burners in a staggered mode on the same horizontal plane, fire spraying holes are formed in the end portions of the fifth burner and the sixth burner, and a second combustion-supporting air pipe is connected to all the fifth burner and the sixth burner through pipelines.

5. The energy-saving partition-free double-layer roller kiln as claimed in claim 1, wherein: a smoke exhaust system is arranged in the cavity of the smoke exhaust area, the smoke exhaust system comprises an upper flue, a lower flue, a middle flue, a lower drop pipe, a smoke main pipe, a smoke exhaust fan and a chimney, the upper flue is arranged on one side wall of the cavity and positioned above the upper-layer conveying roller way, the lower support flue is arranged on one side wall of the cavity and is positioned below the lower layer conveying roller way, the middle branch flue is arranged on one side wall of the cavity and positioned between the upper layer conveying roller way and the lower layer conveying roller way, the upper branch flue, the lower branch flue and the middle branch flue are communicated with the flue gas main pipe through the lower drop pipe, the flue gas house steward pass through the tube coupling in smoke exhaust ventilator's air intake, smoke exhaust ventilator's air outlet pass through the tube coupling in the chimney, smoke exhaust ventilator is provided with and is no less than one.

6. The energy-saving partition-free double-layer roller kiln as claimed in claim 1, wherein: the kiln body frame is characterized in that the smoke exhaust area, the preheating area, the burning area and the quenching area all comprise a kiln body frame, every the inner side wall of the kiln body frame is sequentially provided with a side wall cotton plate and a side wall light brick layer from outside to inside, every the inner bottom wall of the kiln body frame is provided with a bottom wall light brick layer and every, a plurality of lifting hooks are evenly arranged at the top of the kiln body frame, every is arranged at the bottom of each lifting hook, every is connected with a hanging rail in a clamping mode at the bottom side of each hanging rail, every two adjacent hanging rails are connected with a top wall hollow plate between the hanging rails, the top wall hollow plate is provided with a top wall heat insulation cotton layer and every kiln body frame is internally provided with all top wall hollow plates which form a heat insulation top surface, and the side wall light brick layer, the bottom wall light.

7. The energy-saving partition-free double-layer roller kiln according to claim 6, characterized in that: arbitrary two are adjacent in preheating zone, burning zone, the quench zone all be provided with location light brick, two on the hanger rail be provided with the clearance between the location light brick, be provided with the fire damper in the clearance, the fire damper with be provided with the sealed cotton between the location light brick, the bottom side of fire damper with be provided with flue gas passageway between the upper rollgang, in preheating zone, burning zone, the quench zone kiln body frame top is provided with the mounting bracket, be provided with a plurality of regulation hole along vertical direction on the mounting bracket, it has the round steel and will to alternate in at least one regulation hole the fire damper is fixed in the mounting bracket.

8. The energy-saving partition-free double-layer roller kiln according to claim 7, characterized in that: the utility model discloses a heating furnace, including preheating zone, burning zone, quench zone, be provided with the muffle roller stick in the cavity of preheating zone, burning zone, quench zone, the muffle roller stick set up in between upper rollgang and the lower floor rollgang, be provided with the stainless steel frame on the cavity lateral wall of preheating zone, burning zone, quench zone, the muffle roller stick is provided with a plurality of along vertical direction range, every the muffle roller stick of cavity runs through the cavity at its place respectively and fixed the setting on the stainless steel frame of this cavity, the inside tampon that all fills in both ends of muffle roller stick, the muffle roller stick with the fire guard is in on same vertical face.

9. The energy-saving partition-free double-layer roller kiln according to claim 8, characterized in that: the diapire of cavity is provided with the fire-blocking wall, the top surface of fire-blocking wall is provided with the scarf, the fire-blocking wall with the flame proof roller stick is in on the same vertical face.

10. The energy-saving partition-free double-layer roller kiln according to claim 6, characterized in that: the quenching device comprises a quenching area, and is characterized in that a quenching component is arranged in a cavity of the quenching area, the quenching component comprises an upper blowpipe, a middle blowpipe, a lower blowpipe, an air inlet pipe and an air supply fan, the upper blowpipe is inserted in the inner side wall of the cavity and positioned above the upper-layer conveying roller way, the middle blowpipe is inserted in the inner side wall of the cavity and positioned between the upper-layer conveying roller way and the lower-layer conveying roller way, the lower blowpipe is inserted in the inner side wall of the cavity and positioned below the lower-layer conveying roller way, the upper blowpipe, the middle blowpipe and the lower blowpipe are all communicated with an air outlet of the air supply fan through the air inlet pipe, and a plurality of blowholes are formed in the bottom side of the upper blowpipe, the top side and the bottom side of the middle blowpipe, and the top side.