CN202717719U - Gypsum calcining kiln - Google Patents
Gypsum calcining kiln Download PDFInfo
- Publication number
- CN202717719U CN202717719U CN201220435139.5U CN201220435139U CN202717719U CN 202717719 U CN202717719 U CN 202717719U CN 201220435139 U CN201220435139 U CN 201220435139U CN 202717719 U CN202717719 U CN 202717719U
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- kiln body
- section
- flue gas
- kiln
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model relates to calcining equipment for materials such as gypsum, in particular to a gypsum calcining kiln. The gypsum calcining kiln is characterized by being a rotatable kiln body driven by a transmission device and being composed of a front material quick preheating section, a middle material temperature rising and dewatering section, a back quick dewatering section and a central abnormal-shaped heat exchange smoke pipe which are assembled through an external supporting device. The central abnormal-shaped heat exchange smoke pipe is arranged in the center of the inside of the gypsum calcining kiln and penetrates along the axial direction. A feed inlet is arranged in the front portion of the material quick preheating section. A smoke circulation passageway and a discharge box are sequentially arranged on the tail portion of the back quick dewatering section. A discharge outlet is arranged in the lower portion of the discharge box. The front portion of the abnormal-shaped heat exchange smoke pipe is connected with a tail gas mixing exhaust pipe connected with a water vapor inlet. The gypsum calcining kiln is unique in structure, and capable of adapting to various materials, well improving heat exchange efficiency and heat utilization efficiency, reducing product energy consumption, ensuring stability of quality of products, and producing gypsum powder according with national standards and adapting to requirements of customers.
Description
Technical field
The utility model relates to the calciner of the materials such as a kind of gypsum, especially relates to a kind of gyp-incineration, kiln.
Background technology
At present, more for the calciner of gypsum, mainly contain two classes with regard to its classification, the one, adopt hot gas flow and material directly to contact to calcine; The 2nd, adopt hot gas flow not calcine with the mode that material directly contacts.Directly the general heat transfer rate of calciner of contact is fast, but environmental protection pressure is large, and constant product quality is poor, and product is too fast time of coagulation, and product can only adapt to the low-grade user who requires with powder, end-use narrow range; Adopting the equipment of indirect type calcining because the classification such as form, thermal medium are larger, is to use at present more device type, common product steady quality, product adaptation wide ranges, but because the restriction of the aspects such as indirect contact and device structure, product energy consumption is generally higher; At present also there is not to overcome the device of defects.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of structure unique, can equipment can adapt to all kinds of raw materials, and can better improve heat exchange efficiency and heat utilization efficiency, reduction product energy consumption, guarantee the quality stability of product and can produce the gyp-incineration, kiln that meets national standard and adapt to the terra alba of customer need.
The utility model is realized in the following way:
A kind of gyp-incineration, kiln, it is characterized in that: it is the material rapidly pre-warming section by the front portion, the material intensification dewatering period at middle part, the rotatable kiln body that is driven by transmission mechanism that the bracing or strutting arrangement of the fast dewatering section at rear portion and the center that inside center runs through vertically abnormity heat exchange smoke pipe by the outside assembles, be provided with opening for feed in material rapidly pre-warming section front portion, the fast dewatering segment trailer is provided with flue gas recirculation passage and feed box successively at the rear portion, the feed box bottom is provided with discharge port, abnormity heat exchange smoke pipe front portion is connected with tail gas mixing vent pipe, is connected with the steam import on the tail gas mixing vent pipe;
The material rapidly pre-warming section of described front portion is to be that equilateral triangle and leg-of-mutton drift angle are towards described kiln body center by the vertical section, the drift angle medullary ray is arranged the I type cone type exhaust gases passes that forms along a plurality of triangular prisms of described kiln body distribution radially along described kiln body inwall, the material intensification dewatering period at middle part is the flue gas heat exchange passage that is composited by the vertical section II type heat exchange cone that to be equilateral triangle and leg-of-mutton base along a plurality of triangular prisms of described kiln body distribution radially along described kiln body inwall arrange forms, the fast dewatering section at rear portion is to be that equilateral triangle and leg-of-mutton drift angle are towards the external wall of described kiln by the vertical section, the drift angle medullary ray is arranged the III type heat exchange that forms and is bored the flue gas heat exchange passage that is composited along the radially-arranged a plurality of triangular prisms of described kiln body along described kiln body inwall, be provided with the high-temperature flue gas chamber outside described I type cone type exhaust gases passes;
The drift angle of described equilateral triangle is 30 degree;
Between described flue gas recirculation passage and described feed box, be provided with blocking material ring;
Described center abnormity heat exchange smoke pipe in the flue gas heat exchange channel section that described II type heat exchange cone is composited is provided with the plate that connects material.
The utility model has following effect:
1) structure is unique, can can adapt to all kinds of raw materials by equipment, and can better improve heat exchange efficiency and heat utilization efficiency: it is material rapidly pre-warming section by the front portion for the device that the utility model provides, the material intensification dewatering period at middle part, the rotatable kiln body that is driven by transmission mechanism that the bracing or strutting arrangement of the fast dewatering section at rear portion and the center that inside center runs through vertically abnormity heat exchange smoke pipe by the outside assembles, be provided with opening for feed in material rapidly pre-warming section front portion, the fast dewatering segment trailer is provided with flue gas recirculation passage and feed box successively at the rear portion, the feed box bottom is provided with discharge port, abnormity heat exchange smoke pipe front portion is connected with tail gas mixing vent pipe, is connected with the steam import on the tail gas mixing vent pipe; The exhaust gases passes that this device adopts the cone of different angles to be composited carries out heat exchange and utilizes the duration of contact of different cone angles control materials and heat exchanger channels, and the mode with following current or adverse current that exhaust gases passes and material guiding device are complex as a whole is dried or calcined wet stock.
2) and can better improve heat exchange efficiency and heat utilization efficiency: the material rapidly pre-warming section of the described front portion of device that the utility model provides is to be that equilateral triangle and leg-of-mutton drift angle are towards described kiln body center by the vertical section, the drift angle medullary ray is arranged the I type cone type exhaust gases passes that forms along a plurality of triangular prisms of described kiln body distribution radially along described kiln body inwall, the material intensification dewatering period at middle part is the flue gas heat exchange passage that is composited by the vertical section II type heat exchange cone that to be equilateral triangle and leg-of-mutton base along a plurality of triangular prisms of described kiln body distribution radially along described kiln body inwall arrange forms, the fast dewatering section at rear portion is to be that equilateral triangle and leg-of-mutton drift angle are towards the external wall of described kiln by the vertical section, the drift angle medullary ray is arranged the III type heat exchange that forms and is bored the flue gas heat exchange passage that is composited along the radially-arranged a plurality of triangular prisms of described kiln body along described kiln body inwall, be provided with the high-temperature flue gas chamber outside described I type cone type exhaust gases passes; This equipment adopts the cone type exhaust gases passes, and adjusts the thermo-contact time according to the different zones conversion cone angle of calcining kiln, and the heat exchange cone has the effect of guide simultaneously; This equipment adopts the cone type exhaust gases passes, and the various heat exchange section in calcining kiln requires to adopt different cone decoration forms and angle to reach the purpose of adjusting material-heat-exchanging effect and heat-exchange time according to heat exchange.
The specific aim oven dry that 3) can realize different material is calcined and the adjustment of many performances of variant production: this equipment is high for moisture content of material, the demanding characteristics of material calcining, all kinds of materials that can adapt to the 0-20% water ratio especially adapt to the oven dry of heat-sensitive material and the calcining of all kinds of by-product gypsum and the plaster of paris; Thermal medium adaptability is wide, can adapt to all kinds of high temperature hot gas body mediums that can produce 300-900 ℃; In this method for calcinating, adopt the mode of the heat exchange of combined type multi-angle exhaust gases passes, exhaust gases passes and charging guide plate integral structure, cone type and pipeline composite structure, exhaust gases passes and material duration of contact are long, heat exchange efficiency is high; This method for calcinating adopts indirect contact heat exchanger, fully calcining is contained grey hot gas flow and product separation, and impurity enters product in the controlled tobacco curing gas, avoids contacting of high-temperature flue gas and heat-sensitive material; Standby specific aim oven dry calcining and the adjustment of many performances of variant production that can realize different material of this calcining.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that Fig. 1 of the present utility model is along the sectional view of A-A;
Fig. 3 is that Fig. 1 of the present utility model is along the sectional view of B-B;
Fig. 4 is that Fig. 1 of the present utility model is along the sectional view of C-C;
Fig. 5 is that Fig. 1 of the present utility model is along the sectional view of D-D.
Embodiment
A kind of gyp-incineration, kiln, as shown in Figure 1: it is the material rapidly pre-warming section 1 by the front portion, the material intensification dewatering period 2 at middle part, the rotatable kiln body 7 that is driven by transmission mechanism 6 that the bracing or strutting arrangement 5 of the fast dewatering section 3 at rear portion and the center that inside center runs through vertically abnormity heat exchange smoke pipe 4 by the outside assembles, be provided with opening for feed 9 in material rapidly pre-warming section 1 front portion, fast dewatering section 3 afterbodys are provided with flue gas recirculation passage 16 and feed box 11 successively at the rear portion, feed box 11 bottoms are provided with discharge port 12, abnormity heat exchange smoke pipe 4 front portions are connected with tail gas mixing vent pipe 8, are connected with steam import 17 on the tail gas mixing vent pipe 8.
Such as Fig. 2,3, shown in 4 and 5: the material rapidly pre-warming section 1 of described front portion is to be that equilateral triangle and leg-of-mutton drift angle are towards described kiln body 7 centers by the vertical section, the drift angle medullary ray is arranged the I type cone type exhaust gases passes 14 that forms along a plurality of triangular prisms of described kiln body 7 distribution radially along described kiln body 7 inwalls, the material intensification dewatering period 2 at middle part is the flue gas heat exchange passage 13 that is composited by the vertical section II type heat exchange cone that to be equilateral triangle and leg-of-mutton base along a plurality of triangular prisms of described kiln body 7 distribution radially along described kiln body 7 inwalls arrange forms, the fast dewatering section 3 at rear portion is to be that equilateral triangle and leg-of-mutton drift angle are towards described kiln body 7 outer walls by the vertical section, the drift angle medullary ray is arranged the III type heat exchange that forms and is bored the flue gas heat exchange passage 15 that is composited along described kiln body 7 radially-arranged a plurality of triangular prisms along described kiln body 7 inwalls, be provided with high-temperature flue gas chamber 20 outside described I type cone type exhaust gases passes 14.
The drift angle of described equilateral triangle is 30 degree.
Between described flue gas recirculation passage 16 and described feed box 11, be provided with blocking material ring 18.
Described center abnormity heat exchange smoke pipe 4 in 13 sections in flue gas heat exchange passage that described II type heat exchange cone is composited is provided with the plate 19 that connects material.
As shown in Figure 1: with the gypsum of attached water 0～20% feeding capacity according to metering, send into uniformly the natural opening for feed 9 of Combined type multi-channel calcining kiln, material enters calcining kiln and contacts with rapidly pre-warming section kiln wall, the kiln wall outside contacts with the high-temperature flue gas chamber, material carries out heat exchange with the heat exchange cone of the high-temperature flue gas heating that enters the heat exchange cone by high-temperature flue gas entry 10 simultaneously, the guide angular movement of setting by the heat exchange cone simultaneously, and remain in the guide process and continue heat exchange; The material and the different in nature heat transfer tube that fall from the heat exchange cone simultaneously carry out again contact heat-exchanging; Constantly material is directed at by heat exchange cone many specifications are installed, the material intensification dewatering period 2 of the flue gas heat exchange cone 14 of wide-angle progressively heat temperature raising begins dehydration, the heat exchange coning angle hold under the arm under the rotation of wrapping up in the kiln body, material is with working direction and different in nature heat exchange smoke pipe 4 and many specifications, the frequently thermo-contact of flue gas heat exchange cone 14 of wide-angle, material-heat-exchanging also further travels forward, reaching dehydration temperaturre to material sharply dewaters, by the effect of the equipment gradient and the fluidization effect of material thickness, mixing semi-hydrated gypsum in the calcining flows to discharge port, after entering fast dewatering section 3, be subject to blocking material plate 18 and heat exchange cone 15, the effect of flue gas recirculation passage 16, finish fast heat exchange, only have the material that dewaters more completely to cross blocking material plate 18 beginning dischargings, the existence of shelves flitch makes again and has guaranteed certain material thickness in the kiln body, has further improved heat exchange efficiency and speed; The high-temperature flue gas of fuel combustion enters high-temperature flue gas Heat Room 20, the gypsum that enters the intensification of many specifications flue gas heat exchange cone 14 and access arrangement from high-temperature flue gas entry 10 carries out quick heat exchange, the waste heat flue gas of drop in temperature enters different in nature heat transfer tube 4 by flue gas recirculation passage 16 after heat exchange, and heat conversion is fed the wet stock of kiln by connect material plate 19 and inner barrel, realize the remaining temperature pre-heating drying of material, the waste heat flue gas of finishing heat exchange enters mixed tail gas relief outlet 8, discharges by relief outlet.Material changes half water or III type gypsum phase grog into by two water gypsum after calcining, during the course by control smoke inlet temperature and flow of flue gas speed, control material calcining time and temperature, reach the ratio of control half water or III type, thereby the terra alba of production different varieties such as building gypsum plaster or goods are with coagulating soon terra alba.
Claims (5)
1. gyp-incineration, kiln, it is characterized in that: it is the material rapidly pre-warming section (1) by the front portion, the material intensification dewatering period (2) at middle part, the rotatable kiln body (7) by transmission mechanism (6) drive that the fast dewatering section (3) at rear portion and the center that inside center runs through vertically abnormity heat exchange smoke pipe (4) assemble by outside bracing or strutting arrangement (5), be provided with opening for feed (9) in material rapidly pre-warming section (1) front portion, be provided with successively flue gas recirculation passage (16) and feed box (11) at rear portion fast dewatering section (3) afterbody, feed box (11) bottom is provided with discharge port (12), abnormity heat exchange smoke pipe (4) front portion is connected with tail gas mixing vent pipe (8), is connected with steam import (17) on the tail gas mixing vent pipe (8).
2. gyp-incineration, kiln as claimed in claim 1, it is characterized in that: the material rapidly pre-warming section (1) of described front portion is to be that equilateral triangle and leg-of-mutton drift angle are towards described kiln body (7) center by the vertical section, the drift angle medullary ray is arranged the I type cone type exhaust gases passes (14) that forms along a plurality of triangular prisms of described kiln body (7) distribution radially along described kiln body (7) inwall, the material intensification dewatering period (2) at middle part is the flue gas heat exchange passage (13) that is composited by the vertical section II type heat exchange cone that to be equilateral triangle and leg-of-mutton base along a plurality of triangular prisms of described kiln body (7) distribution radially along described kiln body (7) inwall arrange forms, the fast dewatering section (3) at rear portion is to be that equilateral triangle and leg-of-mutton drift angle are towards described kiln body (7) outer wall by the vertical section, the drift angle medullary ray is arranged the III type heat exchange that forms and is bored the flue gas heat exchange passage (15) that is composited along the radially-arranged a plurality of triangular prisms of described kiln body (7) along described kiln body (7) inwall, be provided with high-temperature flue gas chamber (20) outside described I type cone type exhaust gases passes (14).
3. gyp-incineration, kiln as claimed in claim 2 is characterized in that: the drift angle of described equilateral triangle is 30 degree.
4. gyp-incineration, kiln as claimed in claim 1 is characterized in that: be provided with blocking material ring (18) between described flue gas recirculation passage (16) and described feed box (11).
5. gyp-incineration, kiln as claimed in claim 1 is characterized in that: the special-shaped heat exchange smoke pipe in described center (4) in flue gas heat exchange passage (13) section that described II type heat exchange cone is composited is provided with the plate that connects material (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220435139.5U CN202717719U (en) | 2012-08-30 | 2012-08-30 | Gypsum calcining kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220435139.5U CN202717719U (en) | 2012-08-30 | 2012-08-30 | Gypsum calcining kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202717719U true CN202717719U (en) | 2013-02-06 |
Family
ID=47619548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220435139.5U Expired - Lifetime CN202717719U (en) | 2012-08-30 | 2012-08-30 | Gypsum calcining kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202717719U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705656A (en) * | 2017-01-20 | 2017-05-24 | 重庆鹏越科技发展有限公司 | Calcining kiln for titanium dioxide |
| CN109761523A (en) * | 2019-03-29 | 2019-05-17 | 郑州三迪建筑科技有限公司 | A kind of preheating kiln before ardealite calcining |
| CN109761520A (en) * | 2019-03-29 | 2019-05-17 | 郑州三迪建筑科技有限公司 | A kind of preheating kiln before ardealite calcining |
| CN113754330A (en) * | 2021-10-08 | 2021-12-07 | 安徽立鑫新材料科技有限公司 | Processing technology for producing high-strength gypsum powder by using phosphogypsum and desulfurized gypsum product |
-
2012
- 2012-08-30 CN CN201220435139.5U patent/CN202717719U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705656A (en) * | 2017-01-20 | 2017-05-24 | 重庆鹏越科技发展有限公司 | Calcining kiln for titanium dioxide |
| CN109761523A (en) * | 2019-03-29 | 2019-05-17 | 郑州三迪建筑科技有限公司 | A kind of preheating kiln before ardealite calcining |
| CN109761520A (en) * | 2019-03-29 | 2019-05-17 | 郑州三迪建筑科技有限公司 | A kind of preheating kiln before ardealite calcining |
| CN113754330A (en) * | 2021-10-08 | 2021-12-07 | 安徽立鑫新材料科技有限公司 | Processing technology for producing high-strength gypsum powder by using phosphogypsum and desulfurized gypsum product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202717719U (en) | Gypsum calcining kiln | |
| CN101762154B (en) | Energy-saving ceramic tunnel kiln | |
| CN102875036B (en) | Heat storage type lime rotary kiln | |
| CN102183129A (en) | Drying device for architectural ceramic roller table | |
| CN104310829B (en) | Industry by-product gypsum pneumatic type steam pressure produces the apparatus and method of alpha-semi water plaster stone | |
| CN204346078U (en) | A kind of roller way kiln residual heat using device | |
| CN202188735U (en) | Direct-fired instant drying house | |
| CN212476557U (en) | Device for preparing magnesium phosphate cement by using medium-burned magnesium oxide | |
| CN203668479U (en) | Reduction and distillation furnace for sponge titanium production | |
| CN201697447U (en) | Calcining device of nano-grade WO3/TiO2 functional materials | |
| CN202131228U (en) | Device for calcining beta-type ceramic mould gypsum | |
| CN202109736U (en) | Building ceramic roll table drying equipment | |
| CN104108715A (en) | Efficient and energy-saving carbonization and activation integrated furnace | |
| CN201983596U (en) | Hot air supplier used for powder process spray drying tower | |
| CN101521062B (en) | Hot air mixing compartment and hot air mixing method for enamelling machine | |
| CN201971745U (en) | Multi-tube calcining kiln for desulfurized gypsum | |
| CN203212332U (en) | Drying and calcining device for sulfuric acid and cement production from gypsum | |
| CN201273691Y (en) | Tube-less air heater | |
| CN201246953Y (en) | Calcining apparatus of nano-scale metallic oxide material rotary kiln | |
| CN201462812U (en) | Ore calcination kiln highly effective energy-saving burning system | |
| CN201885553U (en) | Energy-saving efficiency-improving rotary kiln with double temperature fields | |
| CN104315869A (en) | Calcining-kiln waste-heat utilization device for high-void rate shale hollow blocks | |
| CN201288148Y (en) | Novel multifuel combustion kiln | |
| CN203928710U (en) | A kind of large section firing bricks with industrial wastes tunnel cave | |
| CN109970370B (en) | Device for preparing pure calcium aluminate cement by preheater kiln technology and production process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 750000 the Ningxia Hui Autonomous Region Yinchuan hi tech Zone, science and Technology Street, China Tongda business building No. 206 Patentee after: NINGXIA BODE GYPSUM Research Institute (Ltd.) Address before: 750002 4 floor, Xinxiang mansion, Xinchang West Road, Jinfeng District, Yinchuan, the Ningxia Hui Autonomous Region Patentee before: NINGXIA BODE GYPSUM SCIENCE & TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130206 |
|
| CX01 | Expiry of patent term |