CN212152103U

CN212152103U - Combined type gypsum calcining device

Info

Publication number: CN212152103U
Application number: CN202020826667.8U
Authority: CN
Inventors: 刘兴峰; 李柱华
Original assignee: Anhui Xutong Environmental Protection Technology Co ltd
Current assignee: Anhui Xutong Environmental Protection Technology Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-12-15
Anticipated expiration: 2030-05-18

Abstract

The utility model discloses a combined type gypsum calcining device, the center department of compound drying chamber bottom is fixed with the radiant combustion chamber of round cover shape, the center department of compound drying chamber bottom plate is fixed with the combustor, the outside of compound drying chamber bottom is fixed with the plenum of toroidal cavity structure, be fixed with the hood of multiunit on the bottom plate of compound drying chamber, the multiunit hood distributes between compound drying chamber lateral wall and radiant combustion chamber, be equipped with the hot-blast intercommunicating pore of multiunit on the bottom plate of compound drying chamber, communicate with each other through hot-blast intercommunicating pore between radiant combustion chamber and the plenum, the plenum communicates with each other through the inner chamber of hood and compound drying chamber, be fixed with the blanking pipe of multiunit on the bottom plate of compound drying chamber, insert in the inner chamber of compound drying chamber the upper end of blanking pipe, the lower part of blanking pipe is worn out from the plenum. The utility model has the advantages of good heating uniformity and high production efficiency.

Description

Combined type gypsum calcining device

Technical Field

The utility model belongs to the technical field of the processing of gypsum product, concretely relates to combined type gypsum calcining device.

Background

Gypsum-based panels such as gypsum board and gypsum board produced from gypsum as a raw material are widely used as interior materials for buildings. Gypsum is roughly classified into dihydrate gypsum, hemihydrate gypsum and anhydrite depending on the form of crystal water, and hemihydrate gypsum obtained by calcining dihydrate gypsum is generally used as a raw material of gypsum-based boards. In the prior art, most of gypsum calcining furnaces for manufacturing semi-hydrated gypsum and the like are of rotary structures, burners are arranged at the head parts of the calcining furnaces, sprayed flames are used for calcining the gypsum, and in the actual use process, the burnt flames are easy to directly contact with gypsum raw materials, so that the gypsum is over-burnt, and the product quality is influenced. Meanwhile, the existing calcining furnace has no effective scattering means, so that agglomerated gypsum is not completely calcined, and the product quality is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a composite gypsum calcining device.

A composite gypsum calcining device comprises a composite drying chamber and a radiation combustion chamber; the composite drying chamber comprises a composite drying chamber and is characterized in that a round cover-shaped radiation combustion chamber is fixed at the center of the bottom plate of the composite drying chamber, a combustor is fixed at the center of the bottom plate of the composite drying chamber, an air chamber with an annular cavity structure is fixed at the outer side of the bottom of the composite drying chamber, a plurality of groups of air caps are fixed on the bottom plate of the composite drying chamber, the air caps are distributed between the side wall of the composite drying chamber and the radiation combustion chamber, a plurality of groups of hot air communication holes are formed in the bottom plate of the composite drying chamber, the radiation combustion chamber is communicated with the air chamber through the hot air communication holes, the air chamber is communicated with the inner cavity of the composite drying chamber through the air caps, a plurality of groups of blanking pipes are fixed on the bottom plate of the composite drying chamber, the upper ends of the blanking pipes are inserted.

Preferably, a cylindrical air distribution ring is fixed on a bottom plate of the composite drying chamber, the air distribution ring is located on the outer side of the combustor, a cold air hole is formed in the bottom plate of the composite drying chamber, the air distribution ring is located between the air distribution ring and the combustor, a cold air distribution cavity in an annular cavity shape is fixed on the lower portion of the bottom plate of the composite drying chamber, the cold air distribution cavity is communicated with an inner cavity of the radiation combustion chamber through the cold air hole, and a cold air distribution pipe is fixed at the bottom of the cold air distribution cavity.

Preferably, the lower end of the blanking pipe is connected with a discharging header.

Preferably, a bed material feeding pipe and a gypsum feeding pipe are fixed on the side wall of the composite drying chamber.

Preferably, a plurality of groups of round bar-shaped radiation blocks are fixed on the outer side of the radiation combustion chamber.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses when using, gypsum after the dehydration is added from the gypsum inlet pipe, graininess bed material is added from bed material inlet pipe, the burning is followed from combustor blowout to the natural gas, cold wind is from cold wind air distribution pipe blowout, with the flue gas cooling after the natural burning, flue gas after the cooling is through the outer wall of radiation combustion chamber, radiation block gives the bed material and the gypsum in the outside with the heat transfer, the flue gas enters into the plenum from hot-blast intercommunicating pore, the flue gas is finally from the hood blowout, the fluidization of bed material and gypsum is realized to the spun flue gas, the heat transfer of flue gas is for bed material and gypsum, the realization is to calcining of gypsum, gypsum that the fluidization in-process is being in the same place is broken up, inboard crystal water is appeared, accomplish that calcined gypsum powder follows the flue gas and follow the discharge tube discharge together, discharge from ejection of compact collection case discharge at last again, the storage of warehousing is gone into to exhaust. The utility model realizes the calcination of the gypsum by a composite heat transfer mode, avoids the direct contact of the flame of natural gas combustion with the gypsum, has the advantage of good heating uniformity, and avoids the influence of local high temperature on the product quality; the heat transfer efficiency can be effectively improved by adding the bed material, and the production efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the composite gypsum calcining device of the present invention.

In the figure, 1, a composite drying chamber, 2, a blanking pipe, 3, a radiation combustion chamber, 4, a radiation block, 5, a bed material feeding pipe, 6, a blast cap, 7, an air chamber, 8, a discharging collection box, 9, a gypsum feeding pipe, 10, an air distribution ring, 11, a cold air distribution cavity, 12, a combustor, 13 and a cold air distribution pipe.

Detailed Description

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

Referring to fig. 1, a composite gypsum calcining device comprises a composite drying chamber 1 and a radiation combustion chamber 3; a round cover-shaped radiation combustion chamber 3 is fixed at the center of the bottom of the composite drying chamber 1, a burner 12 is fixed at the center of the bottom plate of the composite drying chamber 1, an air chamber 7 with an annular cavity structure is fixed on the outer side of the bottom of the composite drying chamber 1, a plurality of groups of air caps 6 are fixed on the bottom plate of the composite drying chamber 1, the plurality of groups of air caps 6 are distributed between the side wall of the composite drying chamber 1 and the radiation combustion chamber 3, a plurality of groups of hot air communication holes are arranged on the bottom plate of the composite drying chamber 1, the radiation combustion chamber 3 is communicated with the air chamber 7 through the hot air communication holes, the air chamber 7 is communicated with the inner cavity of the composite drying chamber 1 through an air cap 6, a plurality of groups of blanking pipes 2 are fixed on the bottom plate of the composite drying chamber 1, the upper end of the blanking pipe 2 is inserted into the inner cavity of the composite drying chamber 1, and the lower part of the blanking pipe 2 penetrates out of the air chamber 7; a cylindrical air distribution ring 10 is fixed on a bottom plate of the composite drying chamber 1, the air distribution ring 10 is positioned on the outer side of a combustor 12, a cold air hole is formed in the bottom plate of the composite drying chamber 1, the air distribution ring is positioned between the air distribution ring 10 and the combustor 12, a cold air distribution cavity 11 in an annular cavity shape is fixed on the lower portion of the bottom plate of the composite drying chamber 1, the cold air distribution cavity 11 is communicated with an inner cavity of the radiation combustion chamber 3 through the cold air hole, and a cold air distribution pipe 13 is fixed at the bottom of the cold air distribution cavity 11; the lower end of the blanking pipe 2 is connected with a discharging header 8; a bed material feeding pipe 5 and a gypsum feeding pipe 9 are fixed on the side wall of the composite drying chamber 1; a plurality of groups of round bar-shaped radiation blocks 4 are fixed on the outer side of the radiation combustion chamber 3; when the utility model is used, the dehydrated gypsum is added from the gypsum feeding pipe 9, the granular bed material is added from the bed material feeding pipe 5, the natural gas is sprayed out from the burner 12 for burning, the cold air is sprayed out from the cold air distributing pipe 13 for cooling the flue gas after natural burning, the flue gas after cooling is passed through the outer wall of the radiation combustion chamber 3, the radiation block 4 transfers heat to the bed material and the gypsum on the outer side, the flue gas enters the air chamber 7 from the hot air communicating hole, the flue gas is finally sprayed out from the hood 6, the fluidization of the bed material and the gypsum is realized by the sprayed flue gas, the heat transfer of the flue gas is transferred to the bed material and the gypsum, the calcination of the gypsum is realized, the gypsum which is agglomerated together in the fluidization process is scattered, the crystal water on the inner side is separated out, the calcined gypsum powder is discharged from the blanking pipe 2 along with the flue gas, and finally the gypsum powder is discharged from the discharging collection box 8, and the discharged flue gas and the gypsum are stored in a warehouse after gas-solid separation. The utility model realizes the calcination of the gypsum by a composite heat transfer mode, avoids the direct contact of the flame of natural gas combustion with the gypsum, has the advantage of good heating uniformity, and avoids the influence of local high temperature on the product quality; the heat transfer efficiency can be effectively improved by adding the bed material, and the production efficiency is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A composite gypsum calcining device comprises a composite drying chamber (1) and a radiation combustion chamber (3); the method is characterized in that: a dome-shaped radiation combustion chamber (3) is fixed at the center of the bottom of the composite drying chamber (1), a burner (12) is fixed at the center of the bottom plate of the composite drying chamber (1), an air chamber (7) with an annular cavity structure is fixed at the outer side of the bottom of the composite drying chamber (1), a plurality of groups of air caps (6) are fixed on the bottom plate of the composite drying chamber (1), the plurality of groups of air caps (6) are distributed between the side wall of the composite drying chamber (1) and the radiation combustion chamber (3), a plurality of groups of hot air communication holes are arranged on the bottom plate of the composite drying chamber (1), the radiation combustion chamber (3) is communicated with the air chamber (7) through the hot air communication holes, the air chamber (7) is communicated with the inner cavity of the composite drying chamber (1) through the air caps (6), a plurality of groups of blanking pipes (2) are fixed on the bottom plate of the composite drying chamber (1), the upper end of the blanking pipe (2) is inserted into the inner cavity of the composite drying chamber (1), and the lower part of the blanking pipe (2) penetrates out of the air chamber (7).

2. The composite gypsum calcining apparatus as set forth in claim 1, wherein: the composite drying chamber is characterized in that a cylindrical air distribution ring (10) is fixed on a bottom plate of the composite drying chamber (1), the air distribution ring (10) is located on the outer side of the combustor (12), a cold air hole is formed in the bottom plate of the composite drying chamber (1), the air distribution ring is located between the air distribution ring (10) and the combustor (12), a cold air distribution cavity (11) in an annular cavity shape is fixed on the lower portion of the bottom plate of the composite drying chamber (1), the cold air distribution cavity (11) is communicated with an inner cavity of the radiation combustion chamber (3) through the cold air hole, and a cold air distribution pipe (13) is fixed at the bottom of the cold air distribution cavity (11).

3. The composite gypsum calcining apparatus as set forth in claim 1, wherein: the lower end of the blanking pipe (2) is connected with a discharging header (8).

4. The composite gypsum calcining apparatus as set forth in claim 1, wherein: and a bed material feeding pipe (5) and a gypsum feeding pipe (9) are fixed on the side wall of the composite drying chamber (1).

5. The composite gypsum calcining apparatus as set forth in claim 1, wherein: a plurality of groups of round bar-shaped radiation blocks (4) are fixed on the outer side of the radiation combustion chamber (3).