CN102795796A - Externally-calcined middle part high-efficiency gypsum calcining kiln - Google Patents
Externally-calcined middle part high-efficiency gypsum calcining kiln Download PDFInfo
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- CN102795796A CN102795796A CN2012103328235A CN201210332823A CN102795796A CN 102795796 A CN102795796 A CN 102795796A CN 2012103328235 A CN2012103328235 A CN 2012103328235A CN 201210332823 A CN201210332823 A CN 201210332823A CN 102795796 A CN102795796 A CN 102795796A
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- kiln
- rotary kiln
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- flue gas
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Abstract
The invention relates to an externally-calcined middle part high-efficiency gypsum calcining kiln which comprises a rotary kiln body and a central flue gas pipeline arranged inside the rotary kiln body, wherein the rotary kiln body is divided into a head feed section, a middle calcining section and a tail discharge section according to the feed sequence. The invention is characterized in that the outer side of the middle calcining section of the rotary kiln body is provided with a heat source heat source flue gas chamber which can contain the outer side of the middle calcining section inside. By changing the position of the heat source, the externally-calcined middle part high-temperature heat supply section of the rotary kiln penetrates through the heat source flue gas chamber, thereby greatly increasing the contact heat exchange area of the hot flue gas and the rotary kiln body and enhancing the heat efficiency. The flue gas subjected to heat exchange enters a flue gas circulation pipeline and the central pipeline in the kiln through a flue gas channel arranged at the externally-calcined middle part high-temperature heat supply section, thereby ensuring that the material is sufficiently heated from the feed section to the discharge section, and completing a one-step drying-preheating-calcining process. The invention has the characteristics of high heat exchange efficiency and less dust in exhaust emission.
Description
Technical field
The invention belongs to material of construction calciner technical field, particularly relate to and burn efficient gypsum calcination kiln outside a kind of middle part.
Background technology
At present; The running condition aspect of the calciner slave unit that building gypsum plaster is commonly used is divided and is mainly contained two types: continous way calciner and intermittent type calciner; The heat transfer of slave unit is formal; Burning equipment and two types of outer burning formula equipment in can being divided into, the slave unit form mainly can be divided into two kinds of forms of rotary kiln and frying pan again.Rotary kiln is reliable, stable, easy and simple to handle because of its technology, thereby becomes the main flow equipment that gypsum is produced.
Rotary kiln device is applied to the gypsum calcination field and experiences following developmental stage: (1) intermittently outer rotary kiln that burns, burn rotary kiln, (3) inside and outside multifuel combustion rotary kiln, (4) outer burning formula coil kiln in (2).The advanced at present outer burning formula coil kiln of just genus; Its thermal source flue gas does not directly contact with calcining materials; The operation of material in kiln do not receive the influence of hot blast air quantity, blast, and the circulating inside pipeline can guarantee fully being heated of material again, thereby improved product production and quality.But its shortcoming is: thermal source is arranged on an end of kiln body; The contact area of thermal source smoke chamber and kiln body is too small; The conduction of heat that can't make full use of cylindrical shell heats material, causes kiln internal recycle pipeline heat exchange pressure to increase the device length of having to take to increase; Increase the deficiency of the method compensation heat exchange of pipeline heat-transfer surface, thereby increased the cost of manufacture of equipment.
Summary of the invention
The object of the invention just is to overcome the defective of above-mentioned prior art, and a kind of heat source position that passes through to change is provided, and strengthen the thermal source arrangement space, thereby increase thermal source and kiln contact level is long-pending, burns efficient gypsum calcination kiln outside the middle part of raising heat energy utilization rate.
For realizing that the technical scheme that the foregoing invention purpose is taked is:
Burn efficient gypsum calcination kiln outside a kind of middle part; Comprise according to pan feeding successively being divided into the rotary kiln kiln body of head pan feeding section, middle part calcining section and afterbody discharging section and being arranged on the inner central flue of rotary kiln kiln body, it is characterized in that: have and can it be coated thermal source smoke chamber wherein in the middle part of rotary kiln kiln body calcining section arranged outside.
Said thermal source smoke chamber is communicated with central flue through flue and along the circulating line that calcining kiln kiln body inwall is provided with.
The end of said central flue is equipped with flue gas and discharges case.
Said thermal source smoke chamber is arranged between two bracing or strutting arrangements of rotary kiln kiln body.
The present invention is through changing heat source position, makes outside the middle part of rotary kiln burning formula high temperature give hot arc in the thermal source smoke chamber, thereby improved the contact heat-exchanging area of hot flue gas and rotary kiln cylindrical shell greatly, raising thermo-efficiency.The exhaust gases passes that flue gas after the heat exchange simultaneously is provided with to hot arc through burning formula high temperature outside the middle part again gets into inner flue gas recirculation pipeline of kiln and center tube; Guarantee that material is from feed zone fully being heated until discharging section; Disposable completion oven dry, pre-heating temperature elevation and incinerating process have been realized; Has the heat exchange efficiency height, the characteristics that the dust in the exhaust emissions is few.
Description of drawings
Fig. 1 is the outer structural representation sketch that burns efficient gypsum calcination kiln in the present invention middle part.
Embodiment
Burn efficient gypsum calcination kiln outside the middle part of the present invention, comprise the intravital raising material unit of the intravital central flue of rotary kiln kiln body, rotary kiln kiln 5, rotary kiln kiln 6, rotary kiln bottom transmission mechanism 13 and bracing or strutting arrangement 7.Said rotary kiln kiln body successively is divided into head pan feeding section 1, middle part calcining section 2 and afterbody discharging section 3 according to pan feeding, and head pan feeding section 1 place of rotary kiln kiln body is equipped with charger 8, and afterbody discharging section 3 is equipped with feed box 12.The end that is located at head pan feeding section 1 of central authorities' flue 5 is equipped with flue gas and discharges case 9, and this flue gas discharge case 9 stretches out the kiln body waste gas is discharged.Between rotary kiln kiln body two bracing or strutting arrangements 7, rotary kiln middle part calcining section 2 arranged outside have and can it be coated thermal source smoke chamber 10 wherein; This thermal source smoke chamber 10 connects with the circulating line 4 that axial uniform distribution around rotary kiln kiln body inwall is provided with through flue 11, and the other end of circulating line 4 is communicated with center tube.At head, the afterbody of rotary kiln kiln body material turning vane, auxiliary heat exchange blade, circular shelves flitch etc. have been installed; Make material more fully heat exchange in the process of flowing in body of heater; Thereby realized reducing equipment size under the equal scale production capacity, reduced apparatus processing cost and running cost.
Claims (4)
1. burn efficient gypsum calcination kiln outside a middle part; Comprise according to pan feeding successively being divided into the rotary kiln kiln body of head pan feeding section (1), middle part calcining section (2) and afterbody discharging section (3) and being arranged on the inner central flue (6) of rotary kiln kiln body, it is characterized in that: have and can it be coated thermal source smoke chamber (10) wherein in the middle part of rotary kiln kiln body calcining section (2) arranged outside.
2. according to burning efficient gypsum calcination kiln outside the described middle part of claim 1, it is characterized in that: said thermal source smoke chamber (10) is communicated with central flue (6) through flue (11) and the circulating line (4) that is provided with along calcining kiln kiln body inwall.
3. according to burning efficient gypsum calcination kiln outside claim 1 or the 2 described middle parts, it is characterized in that: the end of said central flue (6) is equipped with flue gas and discharges case (9).
4. according to burning efficient gypsum calcination kiln outside the described middle part of claim 1, it is characterized in that: said thermal source smoke chamber (10) is arranged between two bracing or strutting arrangements (7) of rotary kiln kiln body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210332823.5A CN102795796B (en) | 2012-09-11 | 2012-09-11 | Externally-calcined middle part high-efficiency gypsum calcining kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210332823.5A CN102795796B (en) | 2012-09-11 | 2012-09-11 | Externally-calcined middle part high-efficiency gypsum calcining kiln |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102795796A true CN102795796A (en) | 2012-11-28 |
| CN102795796B CN102795796B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210332823.5A Expired - Fee Related CN102795796B (en) | 2012-09-11 | 2012-09-11 | Externally-calcined middle part high-efficiency gypsum calcining kiln |
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| CN (1) | CN102795796B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261708A (en) * | 2014-09-24 | 2015-01-07 | 安徽晋马环保节能科技有限公司 | Energy-saving chemical gypsum drying and calcining system |
| CN104944816A (en) * | 2015-06-29 | 2015-09-30 | 湖南昌迅科技环保股份有限公司 | Rotary crystallization kiln for alpha gypsum powder |
| CN113758180A (en) * | 2021-09-27 | 2021-12-07 | 攀钢集团攀枝花钢铁研究院有限公司 | Dispersion feeding system for titanium concentrate drying |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821142A (en) * | 2006-03-13 | 2006-08-23 | 山东天力干燥设备有限公司 | Gypsum flue gas rotary calcining/cooling kiln |
-
2012
- 2012-09-11 CN CN201210332823.5A patent/CN102795796B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821142A (en) * | 2006-03-13 | 2006-08-23 | 山东天力干燥设备有限公司 | Gypsum flue gas rotary calcining/cooling kiln |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261708A (en) * | 2014-09-24 | 2015-01-07 | 安徽晋马环保节能科技有限公司 | Energy-saving chemical gypsum drying and calcining system |
| CN104261708B (en) * | 2014-09-24 | 2016-02-10 | 安徽晋马环保节能科技有限公司 | A kind of energy-saving chemical gypsum is dried and calcination system |
| CN104944816A (en) * | 2015-06-29 | 2015-09-30 | 湖南昌迅科技环保股份有限公司 | Rotary crystallization kiln for alpha gypsum powder |
| CN104944816B (en) * | 2015-06-29 | 2017-01-25 | 湖南昌迅科技环保股份有限公司 | Rotary crystallization kiln for alpha gypsum powder |
| CN113758180A (en) * | 2021-09-27 | 2021-12-07 | 攀钢集团攀枝花钢铁研究院有限公司 | Dispersion feeding system for titanium concentrate drying |
| CN113758180B (en) * | 2021-09-27 | 2022-11-25 | 攀钢集团攀枝花钢铁研究院有限公司 | Dispersion feeding system for titanium concentrate drying |
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| Publication number | Publication date |
|---|---|
| CN102795796B (en) | 2014-04-16 |
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Granted publication date: 20140416 Termination date: 20150911 |
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