CN210939794U

CN210939794U - Short-process equipment for producing foamed ceramic plate by microwave continuous hot rolling

Info

Publication number: CN210939794U
Application number: CN201921152962.3U
Authority: CN
Inventors: 江树昌; 胡俊旭; 刘辉汉; 何秋
Original assignee: Zhuzhou Jurunhe Microwave Industrial Furnace Co ltd
Current assignee: Zhuzhou Jurunhe Microwave Industrial Furnace Co ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-07-07
Anticipated expiration: 2029-07-22

Abstract

The utility model discloses a short-flow equipment for producing foamed ceramic plates by microwave continuous hot rolling, which comprises a frame body, a hopper, a melting furnace and a rolling pair; the hopper, the melting furnace and the rolling pair are sequentially arranged on the frame body from top to bottom; the rolling pair comprises a left roller and a right roller which are horizontally arranged in parallel, and a rolling seam is formed between the left roller and the right roller; microwave feed ports for introducing microwaves into the melting furnace are arranged on two sides of a top plate of the melting furnace below the hopper; after the materials in the hopper flow into the materials in a high-temperature molten state in the melting furnace, the materials can be melted to the molten state by means of microwaves introduced from a microwave feed port, and then the materials are rolled downwards from a rolling gap through a left roller and a right roller in opposite directions to form the foamed ceramic plate. And the left side and the right side in the melting furnace are both provided with a flaming wall which is provided with a plurality of flaming pipes capable of flaming and used for preheating and melting materials at the beginning of production. The utility model has the advantages of showing and having dwindled the equipment volume, having shortened production procedure, showing the manufacturing cost who has reduced production energy consumption and equipment itself.

Description

Short-process equipment for producing foamed ceramic plate by microwave continuous hot rolling

Technical Field

The utility model relates to a microwave continuous hot rolling produces short flow equipment of foamed ceramic board belongs to ceramic manufacture equipment field.

Background

In recent years, a foamed ceramic plate for being attached to an external wall of a building has become a new trend, and has the advantages of heat preservation, heat insulation, sound absorption, decoration, moisture prevention, seepage prevention, corrosion resistance, aging resistance, flame retardance, no harm to human health and the like.

At present, fly ash is mostly adopted for producing foamed ceramic plates, the waste amount of factories is large, and a large amount of fly ash can be recycled. In addition, smelting waste materials such as copper slag and the like are used as production raw materials of the foamed ceramic plate, and are also accumulated and abandoned by smelting enterprises in a large quantity, so that the cost of a large amount of raw materials is saved, and the environment is protected.

The main device of the foamed ceramic plate production equipment is a material melting device, and in the prior art, the material melting device is a tunnel kiln which adopts coal or gas combustion for heat supply in the whole process. Because the speed of heating and melting materials is slow due to the heat supply of burning fuel, the volume of the tunnel kiln must be increased and corresponding facilities are added and increased to realize the continuous production of the foamed ceramic plates by completing the task of melting the materials in unit time, thereby leading to the complex arrangement and huge volume of the traditional tunnel kiln. Because the foamed ceramic plate production equipment also comprises a rolling device which is tightly connected with the material melting device, continuous production can be realized, but the combination of two functional devices in a plane space still enables the whole equipment to have the defects of larger occupied area, longer production flow, more complex operation and the like. Meanwhile, the heating mode of burning coal or gas is adopted, so that the production energy consumption of the foamed ceramic plate is high.

In recent years, with the development of microwave technology, the microwave heating is utilized to melt the ceramic making materials to make a breakthrough, and practice proves that when the temperature of the materials for producing the foamed ceramic reaches more than 300 ℃, the microwave absorbing capacity of the materials is obviously enhanced along with the increase of the temperature; when the material for producing the foamed ceramics is melted to a molten state, the rated microwave power can continuously melt the ceramic making material with a certain flow rate. The microwave is used for heating and melting the foamed ceramic material, so that the volume of the stove can be reduced, the arrangement of the stove can be simplified, and the production energy consumption can be obviously saved. And simultaneously, a large amount of smoke generated by burning fuel is avoided. The utility model discloses use this to be the basis promptly, research and development design one kind utilizes the continuous heat of microwave, through the short flow of vertical equipment of roll rolling production foaming ceramic plate.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is mainly: the prior art adopts the mode that the fuel is combusted to supply heat to melt the materials, so that a melting device is huge, and the plane of the material melting device and a rolling device is assembled in a combined manner, so that the problems of huge whole foamed ceramic plate production equipment, complex operation and long production process are caused.

To the above problem, the utility model provides a technical scheme is:

a short-flow equipment for producing foamed ceramic plates by microwave continuous hot rolling comprises a frame body, a hopper, a melting furnace and a rolling pair; the hopper, the melting furnace and the rolling pair are sequentially arranged on the frame body from top to bottom, and the hopper is communicated with the melting furnace; the rolling pair comprises a left roller and a right roller which are horizontally arranged in parallel, and a rolling seam is formed between the left roller and the right roller; microwave feed ports for introducing microwaves into the melting furnace are arranged on two sides of a top plate of the melting furnace below the hopper; an initial heating device is also arranged in the melting furnace; during production, firstly, an initial heating device is utilized to heat and melt the material flowing into the melting furnace, and then the introduced microwave replaces the initial heating device to heat and melt the material flowing into the melting furnace in the subsequent normal production process and maintain the molten material in a molten state; and the molten material is rolled downwards from the rolling gap through the left roller and the right roller in opposite directions to prepare the foamed ceramic plate.

Furthermore, the left side and the right side in the melting furnace are both provided with a flaming wall, and the flaming wall is provided with a plurality of flaming pipes extending into the melting furnace from the outside of the melting furnace.

Further, the flame spraying pipe comprises a fire-resistant sleeve, a flange seat, an air inlet pipe, a deformation-resistant fire-resistant gas pipe and a burner tip; the end of the fire-resistant sleeve extending to the melting furnace through the fire-resistant wall is an inner end, and the other end positioned outside the fire-resistant wall is an outer end; the flange seat is hermetically sleeved at the outer port of the outer end of the refractory casing; the air inlet pipe is communicated with the fire-resistant sleeve between the outer port of the fire-resistant sleeve and the fire-spraying wall; the fire-resistant gas pipe is positioned in the fire-resistant sleeve, one end of the fire-resistant gas pipe extending into the melting furnace is communicated and fixedly connected with the combustion nozzle, so that the combustion nozzle is positioned at the inner port at the inner end of the fire-resistant sleeve, and the other end of the fire-resistant gas pipe is fixed on the flange seat and is communicated with an external gas supply device through the flange seat; the flange seat can be pulled out from the outer port of the refractory sleeve together with the refractory gas pipe and the burner tip; and ventilation gaps communicated with the air inlet pipe are formed among the fire-resistant gas pipe, the burner and the fire-resistant sleeve.

Further, the flame spraying pipe also comprises a fire-resistant lead and an electric igniter which are arranged in the fire-resistant sleeve; the electric igniter is positioned at the position close to the burner tip at the end opening of the inner end of the fire-resistant sleeve; one end of the fire-resistant wire is communicated with the electric igniter, and the other end of the fire-resistant wire is a power supply external connection end and is fixed on the flange seat and penetrates through the flange seat to be connected with an external power supply.

Furthermore, a flue opening is also arranged on the top plate of the melting furnace, and a flue communicated with the flue opening is arranged outside the flue opening; and a flue valve is also arranged on the flue.

Further, the bottom of the melting furnace is provided with a left roller and a right roller which form a rolling pair; overflow slopes inclined towards the lower part of the middle of the melting furnace are arranged on the lower parts of the flaming walls of the left side wall and the right side wall of the melting furnace, the upper side of the overflow slope on the left side is connected with the flaming wall on the left side, the lower side of the overflow slope on the right side is positioned above the top of the left roller, the upper side of the overflow slope on the right side is connected with the flaming wall on the right side, and the lower side of the overflow slope is positioned above the.

Further, a material level upper limit line is arranged on the overflowing slope of the melting furnace.

Furthermore, a square tubular material leaking nozzle which is vertically arranged downwards is arranged at the bottom of the hopper and is provided with a long and narrow discharge hole; the discharge port is positioned right above the rolling seam of the rolling pair, and the length direction of the discharge port is consistent with that of the rolling seam; the width of the rolling seam is smaller than that of the discharge port.

Furthermore, an automatic control system is arranged; a material level sensor is arranged on the melting furnace, and a material leakage control valve is arranged at the upper part of the material leakage nozzle; the automatic control system obtains the material level information in the melting furnace transmitted by the material level sensor and controls the material leakage control valve according to the material level information.

Furthermore, the outer sides of the flaming walls at the two sides of the melting furnace are respectively provided with an anti-sticking powder hopper, the bottom of the anti-sticking powder hopper is provided with a powder supply nozzle, and a powder outlet of the powder supply nozzle is provided with a powder blocking edge and a powder outlet edge; a powder supply nozzle of the left anti-sticking powder hopper inclines towards the top of the left roller, the powder blocking edge of the left anti-sticking powder hopper is close to the roller surface of the left roller, and a powder outlet gap is reserved between the powder outlet edge of the left anti-sticking powder hopper and the roller surface of the left roller; the powder supply nozzle of the right anti-sticking powder hopper is inclined towards the top of the right roller, the powder blocking edge of the powder supply nozzle is close to the roller surface of the right roller, and a powder outlet gap is reserved between the powder outlet edge of the powder supply nozzle and the roller surface of the right roller.

The utility model has the advantages that:

1. the equipment volume is obviously reduced, the production flow is shortened, and the production operation is simplified; and simultaneously, the manufacturing cost of the equipment is greatly reduced.

2. The production energy consumption is obviously reduced.

3. Avoiding the production of a large amount of smoke in the production process.

Drawings

Fig. 1 is a schematic perspective view of a short-flow apparatus for producing foamed ceramic plates by continuous microwave hot rolling.

FIG. 2 is a schematic view of FIG. 1 with the flue added.

Fig. 3 is a schematic sectional view of a short-process apparatus for producing a foamed ceramic plate by microwave continuous hot rolling.

Fig. 4 is a schematic view of the structure of the flame-throwing tube.

Fig. 5 is a schematic sectional view of a short-process apparatus for producing a foamed ceramic plate by continuous microwave hot rolling, which mainly shows the structure and function of a material-leakage control valve and a material-leakage nozzle.

Fig. 6 is a partial schematic view of fig. 3.

FIG. 7 is a schematic view showing the positional relationship between the discharge port (broken line) of the square-tube shaped material discharge nozzle located at the top of the melting furnace and the rolling gap (broken line) between the left and right rolls located at the bottom of the melting furnace (other relevant parts are not shown in the figure).

Fig. 8 is a control flow diagram of the automatic control system, in which arrows indicate the transmission direction of information (including sensing information and control information).

FIG. 9 is a schematic illustration of the loading of a rolling gap with a coarse piece of material to achieve material accumulation at the start of production.

In the figure: 1. a frame body; 2. a hopper; 3. a melting furnace; 4. rolling pairs; 41. a left roller; 42. a right roller; 43. rolling a seam; 5. Feeding a microwave port; 6. a flaming wall; 7. a flame spraying pipe; 71. a refractory casing; 72. a flange seat; 73. an air inlet pipe; 74. a refractory gas tube; 75. a burner tip; 76. an electric igniter; 77. a refractory wire; 78. a power supply external connection end; 8. a flue opening; 81. a flue; 82. a flue valve; 9. an anti-sticking powder hopper; 91. a powder supply nozzle; 92. blocking the powder edges; 93. discharging the powder; 10. overflowing the slope; 11. an upper limit line; 12. a square tube-shaped material leaking nozzle; 13. a discharge port; 14. an automatic control system; 15. a level sensor; 16. a material leakage control valve; 17. a microwave power controller; 18. a temperature sensor; 19. stacking the materials; 20. melting state materials; 21. a finished product transmission plate; 22. preparing a plate; 23. coarse materials; 24. and (4) anti-sticking powder.

Detailed Description

The invention is described in one step with reference to the following examples and figures:

as shown in fig. 1-3, a short-process apparatus for producing foamed ceramic plates by microwave continuous hot rolling comprises a frame 1, a hopper 2, a melting furnace 3 and a rolling pair 4, wherein the hopper 2, the melting furnace 3 and the rolling pair 4 are all arranged on the frame 1; the rolling pair 4 comprises a left roller 41 and a right roller 42 which are horizontally arranged in parallel at the bottom of the melting furnace 3; a rolling gap 43 is arranged between the left roller 41 and the right roller 42 of the rolling pair 4; the melting furnace 3 is arranged right above the rolling pair 4, and the hopper 2 is arranged right above the melting furnace 3; microwave feed openings 5 leading to the melting furnace 3 are formed in the top plates of the melting furnace 3 on two sides below the hopper 2, a microwave generator is arranged outside the melting furnace 3, and microwaves formed by the microwave generator are introduced into the melting furnace 3 through the microwave feed openings 5 through waveguides; an initial heating device is also arranged in the melting furnace 3; during production, the material in the hopper 2 flows into the melting furnace 3 and is firstly melted at high temperature by the initial heating device, when the melting furnace 3 has the high-temperature molten material, microwaves are introduced and the initial heating device is gradually closed, the microwave heating is used for maintaining the melting of the material flowing into the melting furnace 3 during normal production, and the molten material is kept in a molten state. The molten material 20 is extruded downwards from the rolling gap 43 by the rotating left roller 41 and right roller 42, forms the high-temperature flexible primary plate 22, falls onto the finished product conveying plate 21, moves forwards along with the finished product conveying plate 21, and is cooled and sheared to form the foamed ceramic plate. In the above arrangement, the melting furnace 3 for melting materials by microwave heating is adopted, and the hopper 2, the melting furnace 3 and the rolling pair 4 are sequentially and vertically integrated from top to bottom, so that compared with the prior tunnel kiln material melting device adopting combustion fuel and the technical measures of adopting plane combination arrangement of the material melting device and the rolling forming device, the equipment volume is obviously reduced, the production flow from materials to finished products is shortened, and the operation is very simple; meanwhile, the microwave is used for maintaining the melting of the materials, so that the production energy consumption is also obviously saved.

The microwave adopted by the equipment is provided by a microwave generator arranged on the equipment. The microwave generator provided in the apparatus is not generally provided on the same frame 1 as the melting furnace 3, but is provided separately in the vicinity of the frame, and the generated microwave is introduced into the melting furnace 3 through a microwave feed port 5 provided in the melting furnace 3 by a waveguide.

The initial heating device arranged in the melting furnace 3 is a flame projecting wall 6 arranged at the left and right sides of the melting furnace 3, and the flame projecting wall 6 is provided with a plurality of flame projecting pipes 7 extending into the melting furnace from the outside of the melting furnace; the high-temperature molten material in the melting furnace 3 at the start of production is formed by previously torch-heating the material flowing from the hopper 2 into the melting furnace 3 by the torch 7. Because the raw materials for producing the foamed ceramic plate have low wave-absorbing capacity at normal temperature, the wave-absorbing capacity is obviously enhanced along with the temperature rise of the materials when the temperature of the materials rises to more than 300 ℃, and the rated microwave power is enough to melt the materials which are newly added according to the designed flow when the temperature of the materials rises to melt the materials. Therefore, before the production is started, the material in the melting furnace 3 needs to be heated and melted in advance by the gas-fired flame tube 7, so that the necessary condition is created for replacing heating with microwave. In the arrangement, the two sides of the melting furnace 3 are provided with the plurality of groups of flame spraying pipes, so that the two sides of the material can be quickly and uniformly heated and melted.

As shown in fig. 4, the flame spray tube 7 includes a fire-resistant sleeve 71, a flange seat 72, an air inlet pipe 73, a deformation-resistant fire-resistant gas pipe 74 and a burner tip 75; the end of the fire-resistant sleeve 71 extending to the melting furnace 3 through the fire-resistant wall is the inner end, and the other end positioned outside the fire-resistant wall is the outer end; the flange seat 72 is hermetically sleeved on an outer port of the outer end of the refractory casing 71; the air inlet pipe 73 is communicated with the fire-resistant sleeve 71 between the outer port of the fire-resistant sleeve 71 and the fire-spraying wall 6; the fire-resistant gas pipe 74 is positioned in the fire-resistant sleeve 71, one end of the fire-resistant gas pipe extending into the melting furnace 3 is fixedly connected with the combustion burner 75, the combustion burner 75 is positioned at the inner port of the inner end of the fire-resistant sleeve 71, and the other end of the fire-resistant gas pipe is fixed on the flange seat 72 and is communicated with an external gas supply device through the flange seat 72; the flange seat 72 can be pulled out from the outer port of the refractory casing 71 together with the refractory gas pipe 74 and the burner tip 75; and ventilation gaps communicated with the air inlet pipe 73 are formed between the fire-resistant gas pipe 74 and the fire-resistant sleeve 71 and between the burner tip 75 and the fire-resistant sleeve 71. In the above arrangement, the gas supplied through the fire-resistant gas pipe 74 can be burned in the burner 75, and the air supply pipe 73 supplies oxygen to the burner through the gap between the fire-resistant casing 71 and the fire-resistant gas pipe 74 by supplying air introduced from a forced air device such as a roots blower. The flange seat 72 is arranged to be able to be pulled out from the outer port of the refractory casing 71 together with the refractory gas pipe 74 and the burner tip 75, i.e. after the nozzle of the refractory casing 71 in the furnace is plugged by slag in the last production process, the sintered slag can be pushed out from the nozzle of the flange seat 72 into the refractory casing 71 by a tool such as a iron rod.

In order to facilitate the ignition of the flame-throwing tube, a fire-resistant lead wire 77 and an electric igniter 76 are also arranged in part of the flame-throwing tube 7; the electric igniter 76 is positioned at the inner end port of the refractory casing 71 and is close to the burner tip 75; one end of the fire-resistant wire 77 is communicated with the electric igniter 76, and the other end is fixed on the flange seat 72 and passes through the flange seat 72 to be connected with an external power supply. At least one of the plurality of flame-projecting tubes 7 of one flame-projecting wall 6 is provided with an electric igniter 76 in at least one of the flame-projecting tubes 7.

As shown in fig. 1-3, in order to ensure that a large amount of flue gas generated by flaming heat supply is smoothly discharged when production starts, a flue opening 8 is further arranged on the top plate of the melting furnace 3, and a flue 81 communicated with the flue opening 8 is arranged outside the flue opening 8; a flue valve 82 is also provided in the flue 81. After microwave heating, a large amount of combustion flue gas is not generated in the melting furnace 3, and only a limited amount of hot gas is generated. Therefore, the flue valve is arranged to close the flue after the flaming heating is finished, and limited hot gas generated by microwave heating is forced to escape from the upper part of the hopper 2 along a material leaking port at the bottom of the hopper 2 through gaps among material particles, so that the material can be preheated and dehumidified, and a large amount of heat energy can be saved.

The bottom of the melting furnace 3 is provided with a left roller 41 and a right roller 42 which form a rolling pair 4; the lower parts of the flaming walls 6 on the left side wall and the right side wall of the melting furnace 3 are respectively provided with a overflowing slope 10 inclining towards the lower part of the middle of the melting furnace 3, the upper side of the overflowing slope 10 on the left side is connected with the flaming wall 6 on the left side, the lower side of the overflowing slope 10 on the right side is positioned above the top of the left roller 41, the upper side of the overflowing slope 10 on the right side is connected with the flaming wall 6 on the right side, and the lower side of the overflowing slope 10 on the right. The overflow slope 10 is arranged to mainly prevent the molten material from flowing out to the gap between the left roller 41 and the left flaming wall and the gap between the right roller and the right flaming wall on the two sides of the rolling pair 4, and ensure that the molten material in the melting furnace 3 flows to the rolling gap 43 along the overflow slope.

As shown in fig. 3, 5 and 6, a level upper limit line 11 is provided on an overflow slope 10 of the melting furnace 3 in order to prevent the deposited material or the molten material from approaching and blocking the nozzle of the flame-throwing tube 7.

As shown in fig. 5 and 7, a square tubular material leaking nozzle 12 is arranged at the bottom of the hopper 2 and is vertically downward, and is provided with an elongated material outlet 13; in order to allow the materials leaking into the melting furnace 3 to be accumulated in the longitudinal direction of the rolling gap 43, the discharge port 13 is arranged right above the rolling gap 43 of the rolling pair 4, and the longitudinal direction of the discharge port 13 is consistent with the longitudinal direction of the rolling gap 43;

as shown in fig. 9, the width of the rolling slit 43 is smaller than that of the discharge port 13; this is because, before the start of production, coarse-grained materials having a grain size equal to or larger than that of the rolling gap 43 are first put into the rolling gap 43 of the roll pair 4 from the empty hopper 2 through the material-leaking nozzle 12 toward the bottom of the melting furnace 3, and the rolling gap 43 is filled with the coarse-grained materials, so that the subsequent normal small-grained materials are piled up above the rolling gap 43.

As shown in fig. 5 and 7, a designed distance is reserved between an inlet at the upper part of the square tubular discharge spout 12 and a discharge outlet 13 at the lower end; the design distance is 2-30 cm, namely the material leaking nozzle 12 has a certain length, the function of the material leaking nozzle is to make the vertically downward leaking materials be restrained in the square tube shape of the material leaking nozzle 12 in the air, the materials are prevented from leaking out of the discharge port 13 and then splashing to two sides, and the fire spraying pipes 7 on the fire spraying walls 6 at two sides can be prevented from being blocked.

As shown in fig. 8, the short-process equipment for producing the foamed ceramic plate by microwave continuous hot rolling is provided with an automatic control system 14; a material level sensor 15 is arranged on the melting furnace 3, and a material leakage control valve 16 is arranged above the material leakage nozzle 12; the automatic control system 14 acquires the material level information in the melting furnace transmitted by the material level sensor 15 and controls the material leakage control valve 16 according to the material level information; the arrangement mainly utilizes the material level sensor 15 to obtain material level information in the melting furnace and transmits the information to the automatic control system 14, and the automatic control system 14 controls the material leakage control valve 16 to ensure that the material level height in the melting furnace does not exceed the upper limit line 11 of the material level.

In the melting furnace, a temperature sensor 18 is also arranged, and the automatic control system 14 receives and processes the temperature information transmitted by the temperature sensor 18 and controls a microwave power controller 17 of the microwave generator through the automatic control system 14.

As shown in fig. 1, 3 and 6, the outer sides of the flaming walls 6 at both sides of the melting furnace 3 are respectively provided with an anti-sticking powder hopper 9, the bottom of the anti-sticking powder hopper 9 is provided with a powder supply nozzle 91, and a powder outlet of the powder supply nozzle 91 is provided with a powder blocking edge 92 and a powder outlet edge 93; the powder supply nozzle 91 of the left anti-sticking powder hopper 9 is inclined towards the top of the left roller 41, the powder blocking edge 92 of the left anti-sticking powder hopper is close to the roller surface of the left roller 41, and a powder outlet gap is reserved between the powder outlet edge 93 of the left anti-sticking powder hopper and the roller surface of the left roller 41; the powder supply nozzle 91 of the right anti-sticking powder hopper 9 is inclined towards the top of the right roller 42, the powder blocking edge 92 is close to the roller surface of the right roller 42, and a powder outlet gap is reserved between the powder outlet edge 93 and the roller surface of the right roller 42. The arrangement is mainly used for automatically coating anti-sticking powder on the rotating left roller 41 and the rotating right roller 42, so that the molten material is prevented from being bonded on the roller surfaces of the left roller 41 and the right roller 42 when the molten material is rolled, and simultaneously, the bonding of the shaving ceramic plate which is just extruded and not cooled and shaped with a contact object is also avoided.

As shown in fig. 1, 2, 3 and 9, a continuously operating product conveying plate 21 is further provided below the frame body 1.

A method for producing a foamed ceramic plate by using short-process equipment for producing the foamed ceramic plate by microwave continuous hot rolling comprises the following steps:

1) and materials leak and are stacked: dropping the material in the hopper 2 onto the rolling pair 4 at the bottom of the melting furnace 3 to form a material pile 19 with a triangular stacking angle in cross section, when the bottom angles at two sides of the material pile 19 gradually approach the upper limit line 11 of the overflow slope 10, transmitting the information to the automatic control system 14 by using the material level sensor 15, and automatically controlling the material leakage control valve 16 to reduce the material leakage or stop the material leakage by using the automatic control system 14, as shown in fig. 5;

2) and initial melting of materials: igniting the flame-throwing pipes 7 of the flame-throwing walls 6 at the two sides of the melting furnace 3, and carrying out flame-throwing heating on the material pile 19 formed in the step 1 until the material pile 19 begins to melt and collapse;

3) and microwave replacing heating: when the temperature rises to the melting and collapsing of the material pile 19 in the step 2, gradually closing the fuel gas of the flame-throwing pipe until the flame throwing is stopped, simultaneously opening the microwave generator, and introducing microwaves into the melting furnace 3 from the microwave feed opening 5 to heat the material pile 19; the temperature required to absorb the microwaves is already reached when the temperature rises to the point where the pile 19 is molten and collapsed.

4) Starting a rolling pair 4, and starting to roll the molten material to form the plate; meanwhile, the automatic control system 14 automatically opens the material leakage control valve 16 to supplement the material to the melting furnace 3, and controls the material flow in the whole process, so that the material surface of the melting material is below the upper limit line 11 of the overflowing slope 10, as shown in fig. 3 and 5.

As shown in fig. 9, before the materials are leaked and stacked downward in step 1, the method for producing the foamed ceramic plate by the short-flow equipment for producing the foamed ceramic plate by the microwave continuous hot rolling firstly puts the coarse materials with the specification equal to or larger than the width of the rolling gap 43 into the rolling gap 43 on the rolling pair 4 at the bottom of the melting furnace 3 from the empty hopper 2 through the material leaking nozzle 12, fills the rolling gap 43 with the coarse materials, then conveys the qualified small-particle-diameter materials to the empty hopper 2, and then leaks and stacks the small-particle-diameter materials downward in the melting furnace 3.

It is clear that the above described embodiments are only intended to illustrate the invention more clearly and are not to be considered as limiting the scope of protection covered by the invention, any modification of equivalent forms being considered as falling within the scope of protection covered by the invention.

Claims

1. The short-process equipment for producing the foamed ceramic plate by microwave continuous hot rolling is characterized in that: comprises a frame body (1), a hopper (2), a melting furnace (3) and a rolling pair (4); the hopper (2), the melting furnace (3) and the rolling pair (4) are sequentially arranged on the frame body (1) from top to bottom, and the hopper (2) is communicated with the melting furnace (3); the rolling pair (4) comprises a left roller (41) and a right roller (42) which are horizontally arranged in parallel, and a rolling gap (43) is formed between the left roller (41) and the right roller (42); microwave feed ports (5) for introducing microwaves into the melting furnace (3) are arranged on two sides of a top plate of the melting furnace (3) below the hopper (2); an initial heating device is also arranged in the melting furnace (3); during production, firstly, an initial heating device is utilized to heat and melt the material flowing into the melting furnace (3), and then the introduced microwave replaces the initial heating device to heat and melt the material flowing into the melting furnace (3) in the subsequent normal production process and maintain the molten material in a molten state; the molten material is rolled downwards from a rolling gap (43) through a left roller (41) and a right roller (42) in opposite directions to prepare a foamed ceramic plate.

2. The short process equipment for producing foamed ceramic plates by microwave continuous hot rolling according to claim 1, wherein: the initial heating device is a flame projecting wall (6) arranged at the left side and the right side in the melting furnace (3), and the flame projecting wall (6) is provided with a plurality of flame projecting pipes (7) extending into the melting furnace (3) from the outside of the melting furnace (3).

3. The short process equipment for producing foamed ceramic plates by microwave continuous hot rolling according to claim 2, wherein: the flame spraying pipe (7) comprises a fire-resistant sleeve (71), a flange seat (72), an air inlet pipe (73), an anti-deformation fire-resistant gas pipe (74) and a burner nozzle (75); the end of the fire-resistant sleeve (71) extending to the melting furnace (3) through the fire-resistant wall () is an inner end, and the other end positioned outside the fire-resistant wall () is an outer end; the flange seat (72) is sleeved on an outer port of the outer end of the refractory casing (71) in a sealing manner; the air inlet pipe (73) is communicated with the fire-resistant sleeve (71) between the outer port of the fire-resistant sleeve (71) and the fire-spraying wall (6); the fire-resistant gas pipe (74) is positioned in the fire-resistant sleeve (71), one end of the fire-resistant gas pipe extending into the melting furnace (3) is communicated and fixedly connected with the combustion nozzle (75), so that the combustion nozzle (75) is positioned at the inner end port of the inner end of the fire-resistant sleeve (71), and the other end of the fire-resistant gas pipe is fixed on the flange seat (72) and is communicated with an external gas supply device through the flange seat (72); the flange seat (72) can be pulled out from an outer port of the refractory sleeve (71) together with the refractory gas pipe (74) and the burner tip (75); and ventilation gaps communicated with the air inlet pipe (73) are formed between the fire-resistant gas pipe (74), the burner nozzle (75) and the fire-resistant sleeve (71).

4. The short process equipment for producing foamed ceramic plates by microwave continuous hot rolling according to claim 3, wherein: the flame-throwing pipe (7) also comprises a fire-resistant lead wire (77) and an electric igniter (76) which are arranged in the fire-resistant sleeve (71); the electric igniter (76) is positioned at the inner end port of the refractory sleeve (71) and is close to the burner tip (75); one end of the fire-resistant lead (77) is communicated with the electric igniter (76), and the other end of the fire-resistant lead is a power supply external connection end (78) which is fixed on the flange seat (72) and penetrates through the flange seat (72) to be connected with an external power supply.

5. The short process equipment for producing foamed ceramic plates by microwave continuous hot rolling according to claim 1, wherein: a flue opening (8) is also arranged on the top plate of the melting furnace (3), and a flue (81) communicated with the flue opening (8) is arranged outside the flue opening (8); and a flue valve (82) is also arranged on the flue (81).

6. The short process equipment for producing foamed ceramic plates by microwave continuous hot rolling according to claim 2, wherein: the bottom of the melting furnace (3) is provided with a left roller (41) and a right roller (42) which form a rolling pair (4); the lower parts of the flaming walls (6) on the left side wall and the right side wall of the melting furnace (3) are respectively provided with overflow slopes (10) which incline to the middle lower part of the melting furnace (3), the upper sides of the overflow slopes (10) on the left side are connected with the flaming wall (6) on the left side, the lower sides of the overflow slopes are positioned above the top of the left roller (41), the upper sides of the overflow slopes (10) on the right side are connected with the flaming wall (6) on the right side, and the lower sides of the overflow slopes are positioned above the top of the right roller (42).

7. The short process equipment for producing foamed ceramic plates by microwave continuous hot rolling according to claim 6, wherein: the overflowing slope (10) of the melting furnace (3) is provided with a material level upper limit line (11).

8. The short process equipment for producing foamed ceramic plates by microwave continuous hot rolling according to claim 6, wherein: the bottom of the hopper (2) is provided with a square tubular material leaking nozzle (12) which is vertically arranged downwards and is provided with a long and narrow discharge hole (13); the discharge port (13) is positioned right above the rolling seam (43) of the rolling pair (4), and the length direction of the discharge port (13) is consistent with that of the rolling seam (43); the width of the rolling seam (43) is smaller than that of the discharge hole (13).

9. The short process equipment for producing foamed ceramic plates by microwave continuous hot rolling according to claim 8, wherein: a material leakage control valve (16) is arranged at the upper part of the material leakage nozzle (12).

10. The short process equipment for producing foamed ceramic plates by microwave continuous hot rolling according to any one of claims 1 to 9, wherein: the outer sides of the flaming walls (6) on the two sides of the melting furnace (3) are respectively provided with an anti-sticking powder hopper (9), the bottom of the anti-sticking powder hopper (9) is provided with a powder supply nozzle (91), and a powder outlet of the powder supply nozzle (91) is provided with a powder blocking edge (92) and a powder outlet edge (93); a powder supply nozzle (91) of the left anti-sticking powder hopper (9) inclines towards the top of the left roller (41), a powder blocking edge (92) of the powder supply nozzle is close to the roller surface of the left roller (41), and a powder discharging gap is reserved between a powder discharging edge (93) of the powder supply nozzle and the roller surface of the left roller (41); the powder supply nozzle (91) of the right anti-sticking powder hopper (9) inclines towards the top of the right roller (42), the powder blocking edge (92) is close to the roller surface of the right roller (42), and a powder outlet gap is reserved between the powder outlet edge (93) and the roller surface of the right roller (42).