CN217403100U - Expanded perlite expansion furnace - Google Patents

Abstract

An expanded perlite expansion furnace, which effectively solves the problems of large energy consumption, insufficient primary expansion and inconvenient later processing in the prior perlite production. The device comprises a primary expansion furnace and a secondary expansion furnace, wherein the primary expansion furnace and the secondary expansion furnace are fixedly connected; the primary expansion furnace comprises a hollow first furnace body, the lower end of the first furnace body is fixedly connected with a plurality of first flame nozzles, and the first furnace body is heated by the plurality of first flame nozzles; an air box is arranged below the first furnace body, and air in the air box is communicated with the first flame nozzle through a pipeline; the secondary expansion furnace comprises a hollow inner furnace body, the inner furnace body is communicated with the first furnace body, a hollow fire-resistant pipe is arranged on the outer side of the inner furnace body, a space is reserved between the fire-resistant pipe and the inner furnace body, a plurality of second fire nozzles are fixed on the upper portion and the middle portion of the fire-resistant pipe, and the inner furnace body is heated by the second fire nozzles.

Description

Expanded perlite expansion furnace

Technical Field

The utility model relates to a pearlite production facility technical field especially relates to an expanded perlite expansion furnace.

Background

The expanded perlite is a natural acidic vitreous lava, a nonmetallic mineral product, and comprises perlite, pitchstone and obsidian, and the perlite, the pitchstone and the obsidian are different only in crystal water content. Since the volume of the expanded perlite is rapidly expanded by 4 to 30 times under the high temperature condition of 1000 to 1300 ℃, the expanded perlite is called as expanded perlite. The expanded perlite can be used as a filter, a catalyst, a molecular sieve and a carrier of rubber, chemical fertilizers and pesticides. It is widely used in the departments of building, metallurgy, petroleum, machinery, light industry, water and electricity, casting, medicine, food, agriculture, forestry and gardening, etc.

At present expanded rock in-process of production, the pearlite is at the in-process of production, all expands once usually, and the pearlite still has a lot of edges and corners this time, has caused very big inconvenience to subsequent production and processing, and has a large amount of heat energy losses when preheating, has the great problem of energy consumption loss.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the not enough among the prior art, provide an expanded perlite expansion furnace, the effectual energy consumption of having solved in the current perlite production is big, and one time the inflation is insufficient, causes the inconvenient problem of later stage processing.

The utility model discloses a realize through following technical scheme: the production process of expanded perlite comprises material treatment and air duct dust removal, wherein the material treatment and the air duct dust removal are completed in the whole expanded perlite production equipment;

the material treatment comprises the following steps: firstly, feeding, namely feeding materials into a drying furnace through a feeding bin;

secondly, the materials are preheated in a drying furnace primarily and conveyed to one side;

thirdly, the materials which are preheated preliminarily enter a lifter and are conveyed into an expansion furnace through the lifter;

fourthly, expanding the material in an expansion furnace for two times;

fifthly, conveying the materials subjected to secondary expansion into a drying furnace;

sixthly, conveying the materials dried by the drying furnace into a finished product bin;

the air duct dedusting method comprises the following steps: firstly, outside air enters an air box through a small fan;

secondly, the wind in the wind box enters an expansion furnace;

thirdly, the air in the expansion furnace enters the drying furnace;

fourthly, the air in the drying enters a finished product bin;

fifthly, the air in the finished product bin enters a cyclone separator;

sixthly, allowing air in the cyclone separator to enter a bag-type dust collector;

and seventhly, exhausting the air in the bag-type dust collector through an outlet of the large fan.

An expanded perlite production device comprises a feeding bin, a drying furnace and an expansion furnace;

the feeding bin conveys materials into the drying furnace, and primary preheating is carried out in the drying furnace;

the drying furnace has two functions of preheating and drying;

and the expansion furnace carries out two times of expansion on the preheated material and then conveys the material to the drying furnace for drying.

Preferably, the drying furnace comprises a hollow rotatable preheating cylinder, materials enter the preheating cylinder through an upper material bin, the preheating cylinder is fixedly connected with the inside of the preheating cylinder, two ends of the drying cylinder penetrate through the preheating cylinder, a spiral first feeding auger is fixedly connected in the preheating cylinder, a plurality of feeding ports are formed in the outer circumference of the leftmost end of the preheating cylinder, the materials in the upper material bin enter the preheating cylinder through the feeding ports, a discharging port is formed in the outer circumference of the rightmost end of the preheating cylinder, and the materials in the preheating cylinder are discharged outwards through the discharging port;

the spiral second feeding auger is fixedly connected in the drying cylinder, and the spiral conveying directions of the first feeding auger and the second feeding auger are opposite.

Preferably, a heat preservation cylinder is sleeved and fixed on the outer side of the preheating cylinder.

Preferably, the preheating cylinder is fixedly connected with a first belt wheel at the outer circumference, the first belt wheel is connected with a second belt wheel through a belt, and the second belt wheel rotates under the drive of a motor.

Preferably, a rotating ring is fixedly sleeved on the outer circumference of the preheating cylinder, a carrier roller frame is arranged below the preheating cylinder, a carrier roller is rotatably arranged at the upper end of the carrier roller frame, and the rotating ring is in contact with the carrier roller.

Preferably, the expansion furnace comprises a primary expansion furnace and a secondary expansion furnace, and the primary expansion furnace and the secondary expansion furnace are fixedly connected;

the primary expansion furnace comprises a hollow first furnace body, the lower end of the first furnace body is fixedly connected with a plurality of first flame nozzles, and the first furnace body is heated by the plurality of first flame nozzles;

an air box is arranged below the first furnace body, and air in the air box is communicated with the first flame nozzle through a pipeline;

the secondary expansion furnace comprises a hollow inner furnace body, the inner furnace body is communicated with the first furnace body, a hollow fire-resistant pipe is arranged on the outer side of the inner furnace body, a space is reserved between the fire-resistant pipe and the inner furnace body, a plurality of second fire nozzles are fixed on the upper portion and the middle portion of the fire-resistant pipe, and the inner furnace body is heated by the second fire nozzles.

Preferably, the lower end of the inner furnace body is communicated with the drying cylinder.

Preferably, a plurality of funnels are fixed on the outer circumference of the lower portion of the first furnace body, material receiving grooves are arranged below the funnels and fixedly connected with the first furnace body, the material receiving grooves are arranged obliquely downwards, the positions, close to the funnels, of the material receiving grooves are high, and the inner ends of the material receiving grooves are arranged in the first furnace body;

a furnace material box is arranged above the plurality of funnels and fixedly connected with the first furnace body, and the furnace material box is connected with the funnels through a plurality of discharging pipes.

Preferably, go up the feed bin and include material storage storehouse, material storage storehouse lower extreme is for leaking hopper-shaped structure, and material storage storehouse below is equipped with the conveying pipe of slope, and conveying pipe other end fixedly connected with storage ring body, conveying pipe are close to material storage storehouse department and are the low side, and the storage ring body rotates with preheating the section of thick bamboo to be connected, and the storage ring body passes through the feed inlet and carries material to preheating the section of thick bamboo in.

Preferably, a feeding auger is rotatably arranged in the feeding pipe.

The utility model discloses in, utilize the heat in the material needs stoving after the inflation, preheat initial material, the loss of reduction energy, the adoption of our innovation secondary expansion's technique simultaneously, this still belongs to the pioneer technique in whole trade, the melting of realization material that can be better eliminates the edges and corners of material, has reduced the loss of energy simultaneously, utilizes the low nitrogen technique, realization energy saving and emission reduction's that can be fine purpose.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall axial structure of the present invention;

FIG. 3 is a schematic view of the expansion furnace of the present invention;

FIG. 4 is a schematic view of the shaft side structure of the expansion furnace of the present invention;

FIG. 5 is a schematic view of the structure of the drying furnace and the feeding bin of the present invention;

FIG. 6 is a schematic view of the drying furnace according to the present invention after being partially cut;

FIG. 7 is a schematic view of the overall structure of the drying oven of the present invention;

FIG. 8 is a schematic structural view of the primary expansion furnace and the secondary expansion furnace of the present invention;

FIG. 9 is a schematic view of the refractory tube of FIG. 8 with portions removed;

wherein: 1. feeding a material bin; 2. a drying oven; 3. a hoist; 4. an expansion furnace; 5. a finished product bin; 6. a cyclone separator; 7. a bag-type dust collector; 8. a preheating cylinder; 9. a drying drum; 10. a first feeding auger; 11. a feed inlet; 12. a discharge port; 13. a second feeding auger; 14. a heat-preserving cylinder; 15. a first pulley; 16. a second pulley; 17. a rotating ring; 18. a carrier roller; 19. a carrier roller frame; 20. a primary expansion furnace; 21. a secondary expansion furnace; 22. a first furnace body; 23. a first flame spray nozzle; 24. a bellows; 25. an inner furnace body; 26. a refractory tube; 27. a funnel; 28. a material receiving groove; 29. a furnace material box; 30. a discharging pipe; 31. a material storage bin 32, a feeding pipe 33 and a storage ring body.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

As shown in figures 1-9, a process for producing expanded perlite comprises material treatment and air duct dust removal, wherein the material treatment and the air duct dust removal are completed in the whole equipment for producing expanded perlite;

the material treatment comprises the following steps: firstly, feeding, namely feeding materials into a drying furnace 2 through a feeding bin 1;

secondly, the materials are preheated in the drying furnace 2 primarily and conveyed to one side;

thirdly, the materials which are preheated preliminarily enter a lifter 3 and are sent to an expansion furnace 4 through the lifter 3;

fourthly, the material is expanded twice in the expansion furnace 4;

fifthly, conveying the materials subjected to secondary expansion into a drying furnace 2;

sixthly, the materials dried by the drying furnace 2 are sent into a finished product bin 5;

the air duct dedusting method comprises the following steps: firstly, outside air enters an air box 24 through a small fan;

secondly, the wind in the wind box 24 enters the expansion furnace 4;

thirdly, the air in the expansion furnace 4 enters the drying furnace 2;

fourthly, the air in the drying enters a finished product bin 5;

fifthly, the air in the finished product bin 5 enters the cyclone separator 6;

sixthly, the air in the cyclone separator 6 enters a bag-type dust collector 7;

and seventhly, exhausting the air in the bag-type dust collector 7 through an outlet of the large fan.

In the utility model, we replace the expanded perlite with the material, we explain later in the narration by directly adopting the material, the material enters into the drying furnace 2 through the feeding bin 1, the primary preheating is carried out in the drying furnace 2, the preheated material is conveyed into the expansion furnace 4 through the elevator 3, the material is expanded twice in the expansion furnace 4, the existing market is a primary expansion technology, so that the energy waste occurs, the expanded perlite has the conditions of edges and corners and the like, the melting can not be perfectly realized, the secondary expansion technology is adopted, the material is subjected to a sufficient melting process, the prismatic of the material is well eliminated, the low-nitrogen technology is adopted in the secondary expansion process, and the national energy saving and emission reduction standard is met;

inputting the materials subjected to secondary expansion into the drying furnace 2 again, and drying in the drying furnace 2, wherein the drying furnace 2 is used for primarily preheating the materials and drying in the drying furnace 2, and the preheating of the materials can be realized by using the waste heat in the drying furnace 2, so that the full utilization of energy is realized, and the requirements of energy conservation and environmental protection are met;

the dried material directly enters a finished product bin 5 to finish the whole processing process of the material;

in the course of working of whole material, this process of wind channel dust removal along with, external wind inhales to bellows 24 in through little fan, bellows 24 is provided with wind channel, wind channel sends wind to expansion furnace 4 in, blow the expanded material and remove, whole wind enters into drying furnace 2 through expansion furnace 4 in, then in having entered into finished product feed bin 5, wind in the finished product feed bin 5 carries out the dust removal processing through cyclone 6 and sack cleaner 7, the wind that passes through sack cleaner 7 at last is discharged through the export of big fan.

An expanded perlite production device comprises a feeding bin 1, a drying furnace 2 and an expansion furnace 4;

the feeding bin 1 conveys materials into the drying furnace 2, and preliminary preheating is carried out in the drying furnace 2;

the drying furnace 2 has two functions of preheating and drying;

the expansion furnace 4 carries out expansion twice on the preheated material and then conveys the material to the drying furnace 2 for drying.

In the whole process for producing the expanded perlite, various processing devices are involved, and the system is a system, which comprises a feeding bin 1, a drying furnace 2 and an expansion furnace 4, wherein the feeding bin 1 is used for conveying original materials into the drying furnace 2, preheating in a drying furnace 2, feeding the preheated material into an expansion furnace 4, expanding the material twice by the expansion furnace 4, wherein, the edges and corners of the materials can be well eliminated by the second expansion, the melting of the materials is realized, the materials after the second expansion enter the drying furnace 2, the materials are dried, the drying furnace 2 is used for initial preheating and later drying, the new materials are preheated by utilizing a large amount of heat contained in the expanded materials, therefore, energy can be well saved, and the dried material enters the finished product bin 5 to complete the whole processing process of the expanded perlite.

The whole expansion furnace 4 utilizes a low-nitrogen technology, the efficiency is improved, edges and corners of materials after secondary expansion are eliminated, the melting process can be better realized, the process is pioneered in the whole industry, the production efficiency can be greatly improved, and the processing can be perfect.

The drying furnace 2 comprises a hollow rotatable preheating cylinder 8, materials enter the preheating cylinder 8 through a feeding bin 1, the preheating cylinder 8 is internally and fixedly connected with a drying cylinder 9, two ends of the drying cylinder 9 penetrate through the preheating cylinder 8, a spiral first feeding auger 10 is fixedly connected in the preheating cylinder 8, a plurality of feeding ports 11 are formed in the outer circumference of the leftmost end of the preheating cylinder 8, the materials in the feeding bin 1 enter the preheating cylinder 8 through the feeding ports 11, a discharging port 12 is formed in the outer circumference of the rightmost end of the preheating cylinder 8, and the materials in the preheating cylinder 8 are discharged outwards through the discharging port 12;

spiral second feeding packing auger 13 is fixedly connected in the drying cylinder 9, and the spiral conveying directions of the first feeding packing auger 10 and the second feeding packing auger 13 are opposite.

The utility model discloses in, our preheating cylinder 8 rotates the setting, be in a pivoted state, go up feed bin 1 and carry the material to preheating cylinder 8 in through feed inlet 11, the first pay-off auger 10 of fixedly connected with in preheating cylinder 8, preheating cylinder 8 is in the pivoted state this moment, thereby promote the material and remove to the right side, send material to discharge gate 12 department, discharge from discharge gate 12 through the material that preheats, enter into in lifting machine 3, carry to expansion furnace 4 in with the material after preheating through lifting machine 3, expand the material.

The expanded materials enter the drying cylinder 9, the drying cylinder 9 and the preheating cylinder 8 are fixedly connected and are coaxial and have intervals, the drying cylinder 9 is also in a rotating state, the second feeding auger 13 also rotates along with the drying cylinder 9, and the materials in the drying cylinder 9 move to the left side and enter the finished product bin 5 because the first feeding auger 10 and the second conveying auger are arranged in opposite directions.

And a heat-insulating cylinder 14 is sleeved and fixed on the outer side of the preheating cylinder 8.

Because the drying furnace 2 relates to two parts of preheating and drying, the drying is carried out on the innermost drying cylinder 9, the expanded perlite carries a large amount of heat energy, the heat energy is diffused outwards into the preheating cylinder 8 to directly preheat the initial materials, the outermost side of the preheating cylinder 8 is provided with the heat-insulating cylinder 14, and a gap is reserved between the heat-insulating cylinder 14 and the preheating cylinder 8, so that the loss of the heat energy is reduced to the maximum extent.

The outer circumference of the preheating cylinder 8 is fixedly connected with a first belt wheel 15, the first belt wheel 15 is connected with a second belt wheel 16 through a belt, and the second belt wheel 16 is driven to rotate through a motor.

The first belt pulley 15 and the second belt pulley 16 can be completely replaced by a first chain wheel and a second chain wheel, and a transmission system is driven by a motor, so that the preheating cylinder 8 is driven to rotate.

A rotating ring 17 is fixedly sleeved on the outer circumference of the preheating cylinder 8, a carrier roller frame 19 is arranged below the preheating cylinder 8, a carrier roller 18 is rotatably arranged at the upper end of the carrier roller frame 19, and the rotating ring 17 is in contact with the carrier roller 18.

The carrier roller frame 19 is placed on the ground, the carrier roller 18 is rotatably connected with the carrier roller frame 19, the carrier roller 18 is in contact with the rotating ring 17, and the carrier roller 18 can well play a supporting role and a good auxiliary effect.

The expansion furnace 4 comprises a primary expansion furnace 20 and a secondary expansion furnace 21, and the primary expansion furnace 20 is fixedly connected with the secondary expansion furnace 21;

the primary expansion furnace 20 comprises a hollow first furnace body 22, the lower end of the first furnace body 22 is fixedly connected with a plurality of first flame nozzles 23, and the first furnace body 22 is heated by the plurality of first flame nozzles 23;

an air box 24 is arranged below the first furnace body 22, and air in the air box 24 is communicated with the first flame nozzle 23 through a pipeline;

the secondary expansion furnace 21 comprises a hollow inner furnace body 25, the inner furnace body 25 is communicated with the first furnace body 22, a hollow fire-resistant pipe 26 is arranged on the outer side of the inner furnace body 25, a gap is reserved between the fire-resistant pipe 26 and the inner furnace body 25, a plurality of second fire nozzles are fixed on the upper portion and the middle portion of the fire-resistant pipe 26, and the inner furnace body 25 is heated by the second fire nozzles.

In the utility model, we innovatively adopt the secondary expansion technology, which is initiated in the whole industry, the materials subjected to secondary expansion can well eliminate the edges and corners of the materials to achieve a perfect melting technology, and the low-nitrogen technology adopted by the secondary expansion can well improve the efficiency, save energy and reduce emission, the materials enter the lower part of the primary expansion furnace 20, at the moment, the air box 24 blows air into the first furnace body 22, the first flame nozzles 23 ignite to heat the first furnace body 22, so that a proper temperature is obtained in the first furnace body 22, the materials subjected to primary expansion have lighter unit mass, under the action of wind power, heat power and the like, the materials move upwards into the second furnace body, the first furnace body 22 and the second furnace body are arranged in parallel, the materials subjected to primary expansion enter the inner furnace body 25 through the bent pipe fixed connection, the materials of the inner furnace body 25 are conveyed downwards, the second flame nozzles are arranged on the outer sides of the middle part and the lower part of the inner furnace body 25, the inner furnace body 25 is heated, the materials expand for the second time, the materials after expansion for the second time can be in a good melting state, and the fireproof pipe 26 is arranged on the outer side of the inner furnace body 25, so that the heat loss is reduced to the maximum extent, and the efficiency is improved.

The lower end of the inner furnace body 25 is communicated with the drying cylinder 9.

The material after the secondary expansion enters the drying cylinder 9 from the inner furnace body 25 to carry out the next process step.

A plurality of funnels 27 are fixed on the outer circumference of the lower portion of the first furnace body 22, a material receiving groove 28 is arranged below the funnels 27, the material receiving groove 28 is fixedly connected with the first furnace body 22, the material receiving groove 28 is arranged obliquely downwards, the side, close to the funnels 27, of the material receiving groove 28 is high, and the inner end of the material receiving groove 28 is arranged in the first furnace body 22;

a furnace material box 29 is arranged above the plurality of funnels 27, the furnace material box 29 is fixedly connected with the first furnace body 22, and the furnace material box 29 is connected with the funnels 27 through a plurality of discharging pipes 30.

The utility model discloses in, in the material that preheating cylinder 8 came out carried our furnace charge box 29 through lifting machine 3, furnace charge box 29 was carried the material to a plurality of funnels 27 in by the dead weight, then entered into our first furnace body 22 through connecing silo 28 in, made the material carry out abundant separately like this, conveniently carried out the inflation heating for be heated more even.

Go up feed bin 1 and include material storage bin 31, material storage bin 31 lower extreme is the structure of 27 forms of funnel, and material storage bin 31 below is equipped with the conveying pipe 32 of slope, and conveying pipe 32 other end fixedly connected with storage ring body 33, and conveying pipe 32 is close to material storage bin 31 department and is the low side, and storage ring body 33 rotates with preheating section of thick bamboo 8 and is connected, and storage ring body 33 is through feed inlet 11 to preheating section of thick bamboo 8 in transported substance.

The initial material is placed in the material storage bin 31, the material is conveyed to the storage ring body 33 through the conveying pipe 32, the feed port 11 is coated in the storage ring body 33, and the material enters the preheating cylinder 8 through the feed port 11.

A feeding auger is rotatably arranged in the feeding pipe 32.

The initial material is obliquely and upwards conveyed by the rotation of the feeding auger and then enters the preheating cylinder 8, so that the feeding process of the material is completed.

The utility model discloses in, utilize the heat in the material needs to dry after the inflation, preheat initial material, the loss of reduction energy, the adoption of our innovation simultaneously the technique of secondary expansion, this still belongs to the initiative technique in whole trade, the melting of realization material that can be better eliminates the edges and corners of material, has reduced the loss of energy simultaneously, utilizes the low nitrogen technique, realization energy saving and emission reduction's that can be fine purpose.

In the present invention, at the point of generation, our elevator 3, cyclone separator 6 and bag-type dust collector 7 are now mature technologies, and we have not improved on them, so we do not describe the structure of this part too much.

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

Claims (3)

1. The expanded perlite expansion furnace is characterized by comprising a primary expansion furnace (20) and a secondary expansion furnace (21), wherein the primary expansion furnace (20) is fixedly connected with the secondary expansion furnace (21);

the primary expansion furnace (20) comprises a hollow first furnace body (22), the lower end of the first furnace body (22) is fixedly connected with a plurality of first flame nozzles (23), and the first furnace body (22) is heated by the plurality of first flame nozzles (23);

an air box (24) is arranged below the first furnace body (22), and air in the air box (24) is communicated with the first flame nozzle (23) through a pipeline;

the secondary expansion furnace (21) comprises a hollow inner furnace body (25), the inner furnace body (25) is communicated with the first furnace body (22), a hollow fire-resistant pipe (26) is arranged on the outer side of the inner furnace body (25), a space is reserved between the fire-resistant pipe (26) and the inner furnace body (25), a plurality of second fire nozzles are fixed on the upper portion and the middle portion of the fire-resistant pipe (26), and the inner furnace body (25) is heated by the second fire nozzles.

2. The expanded perlite expansion furnace as recited in claim 1, wherein the lower end of the inner furnace body (25) is communicated with the drying cylinder (9).

3. The expanded perlite expansion furnace as recited in claim 1, characterized in that a plurality of funnels (27) are fixed on the outer circumference of the lower part of the first furnace body (22), a receiving trough (28) is arranged below the funnels (27), the receiving trough (28) is fixedly connected with the first furnace body (22), the receiving trough (28) is arranged obliquely downwards, the side of the receiving trough (28) close to the funnels (27) is high, and the inner end of the receiving trough (28) is arranged in the first furnace body (22);

a furnace material box (29) is arranged above the plurality of funnels (27), the furnace material box (29) is fixedly connected with the first furnace body (22), and the furnace material box (29) is connected with the funnels (27) through a plurality of discharging pipes (30).

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