CN105130229B - A kind of β gyp-incineration, kilns - Google Patents
A kind of β gyp-incineration, kilns Download PDFInfo
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- CN105130229B CN105130229B CN201510392958.4A CN201510392958A CN105130229B CN 105130229 B CN105130229 B CN 105130229B CN 201510392958 A CN201510392958 A CN 201510392958A CN 105130229 B CN105130229 B CN 105130229B
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- heat source
- heating tube
- kiln
- kiln body
- reative cell
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Abstract
The invention discloses a kind of β gyp-incineration, kilns, including kiln body, reative cell, heating tube, material inlet, material waste gas outlet, material outlet, heat source high temp gas feed, heat source exhaust outlet, mozzle, lifting blade；The downflow type passage of heat source high temp gas and material is designed with kiln, heating tube is the reverse-flow passage of heat source high temp gas and material, kiln body heat source passages are connected by mozzle with heating tube, and the kiln body heat source passages constitute downflow type and reverse-flow synthesis with heating tube heat source passages；Lifting blade is located in reative cell, is fixed on kiln body inwall, lifting blade is designed to the dividing plate of the uniform decile of reative cell.This calcining kiln takes first following current reflux type circulation and lifting blade design again, can make full use of heat energy, extend heat-exchange time, increase heat exchange area, improve heat exchange efficiency；Improve distribution of the material in calcining kiln, improve the contact area of kiln temperature, increase material and thermal source, so as to reach energy-conservation, the purpose of high yield；Modular construction connection and reasonable arrangement, saves cost of manufacture.
Description
Technical field
The present invention relates to gypsum production equipment, and in particular to a kind of β gyp-incineration, kilns.
Background technology
Plaster of Paris, is to make plaster stone thermal dehydration, the semi-hydrated gypsum of formation by direct or indirect mode of heating.Half water
Gypsum is divided into αsemiwatergypsum and β semi-hydrated gypsums according to crystal structure difference.Gypsum takes off in the high temperature aqueous solution or saturated steam
Water, generation is exactly αsemiwatergypsum, and in high temperature air dehydration generation be then β semi-hydrated gypsums.Gypsum is in high temperature air
Slough the process referred to as gypsum calcining of the crystallization water.
At present, the capital equipment of domestic gypsum calcining has rotary kiln, vertical frying pan, fluidized bed furnace and that moral mill；Rotary kiln can
It is divided into horizontal rotation kiln, telescopic rotary kiln.Horizontal rotation kiln is divided to downflow type and reverse-flow two kinds again, that is, refers to material and hot-fluid side
To identical or opposite.Downflow type is low temperature calcination gypsum, and reverse-flow is high-temperature calcined gypsum.The combustion system of rotary kiln has directly
Connect heating (inside burning type) and indirectly (outer to burn formula and interior heated Tube) two kinds of heating.
Interior burning continous way gyp-incineration, kiln, mainly uses the direct contact of high warm flue gas and gypsum raw material to complete thing
The calcined dehydration of material, due to material with flue gas to be done directly heat exchange, equipment thermal efficiency and heat utilization efficiency are higher, calcining speed
Degree is fast, and energy consumption is low, has the disadvantage that dust and impurity in fuel combustion have been brought into gypsum, so as to reduce gypsum
Whiteness and mechanical performance.
Outer burning formula and interior heated Tube gyp-incineration, kiln, mainly use the mediate contact of high warm flue gas and gypsum raw material
, will not contaminated gypsum, but heat exchange because material and flue gas complete heat exchange in an indirect way to complete the calcined dehydration of material
Efficiency is typically relatively low, and energy consumption is higher.In this gyp-incineration, kiln, one or more heating tube is provided with, gypsum raw material encloses
It is wound on around heating tube；In order to improve the contact probability of raw material and heating tube, the thermal efficiency is improved, what is had sets in gyp-incineration, kiln
In respect of lifting blade, with the rotation of calcining kiln, lifting blade agitation material can not stopped transport.Material is ceaselessly moved in calcination process,
Material specific surface area is bigger during calcining, and the contact area of gypsum particle and thermal source is bigger, and heat transfer rate is faster, and the thermal efficiency is higher,
Equipment gets over energy-conservation.
The outer burning formula used at present and interior heated Tube gyp-incineration, kiln, either downflow type or reverse-flow, is present
Subject matter has：1st, all only once chance passes through heating pipe, i.e. material and thermal source only once heat exchange, heat energy to thermal current
Utilization rate is low；2nd, the structure design without lifting blade or lifting blade is unreasonable, causes material can not scatter to come as far as possible, material and heating
Pipe contact area is small, and rate of heat exchange is low, high energy consumption；3rd, in the discharge process of waste gas, containing impurity, ash content, carbon particle heat
Source waste gas, with main component be moisture, gypsum particle material waste gas mix, cause the bag-type dust of rear process to reclaim
Thing is difficult by, and wastes useful gypsum resource；4th, heat source high temp air flow inlet, heat source exhaust and material waste gas outlet are all provided with
Meter is in kiln body termination（Downflow type）Or kiln tail（It is reverse-flow）, unreasonable structure, so that kiln hood or kiln tail part are numerous, crowded, multiple
Miscellaneous, physical dimension is excessively huge, has both influenceed attractive in appearance, again to installation, transport, maintenance band inconvenience；5th, calcining kiln afterbody is not set
Count sieves, influence product quality, or even cause line clogging, or have in order to solve this problem, add temporarily in afterbody
A sieves is filled, then adds equipment cost.
The content of the invention
It can increase thermal source and material heat exchange frequency it is an object of the invention to provide one kind, improve the outer of heat utilization rate
Burning formula and interior heated Tube gyp-incineration, kiln.
In order to achieve the above object, technical solution of the invention is：A kind of β gyp-incineration, kilns, including kiln body, reaction
Room, heating tube, material inlet, material waste gas outlet, material outlet, heat source high temp gas feed, heat source exhaust outlet, water conservancy diversion
Pipe, lifting blade；The downflow type passage of heat source high temp gas and material is designed with the kiln, the heating tube is that thermal source is high
The reverse-flow passage of wet body and material, kiln body heat source passages are connected by mozzle with heating tube, the kiln body heat source passages with
Heating tube heat source passages constitute downflow type and reverse-flow synthesis.This structure design so that the heat exchange effect of thermal source and material
Rate expands several times.
The lifting blade is located in reative cell, is fixed on the kiln body inwall, the lifting blade is designed to reative cell
The dividing plate of uniform decile.Lifting blade is allowed with gypsum material and kiln by the stirring gypsum material that gyrated together with kiln body
Downflow type passage and the reverse-flow passage of heating tube in thermal source indirect heat exchange, stirring power increases by the chance of material heat exchange,
It is heated evenly.Material can expand it reverse-flow logical with downflow type passage with kiln and heating tube by the stirring of lifting blade
The contact area of thermal source in road, makes full use of the heat energy of thermal source, further improves the thermal efficiency, saves the energy.
A kind of further improved technology scheme, the lifting blade is i.e. by the cross section shape of the dividing plate of the uniform decile of reative cell
Shape is stairstepping.
A kind of further improved technology scheme, the lifting blade is i.e. by the cross section shape of the dividing plate of the uniform decile of reative cell
Shape is fan blade shape.
A kind of further improved technology scheme, the lifting blade is i.e. by the cross section shape of the dividing plate of the uniform decile of reative cell
Shape is that spiral is leaf.
A kind of optimal technical scheme, the kiln body is designed to hollow interlayer, the heat source high temp gas feed and the kiln body
Interlayer is communicated, and the heat source high temp gas feed is located at close to kiln hood position.
A kind of optimal technical scheme, the heating tube is located at Yao Shen centers, and the heat source exhaust outlet is located at the heating
Pipe is communicated close to the end of kiln hood with heating tube；
A kind of optimal technical scheme, the mozzle is located at the heating tube tail end, by the kiln body interlayer and heating tube
Connection；Heat source high temp gas flows to kiln body caudal directions from heat source high temp gas feed into kiln body mezzanine space, passes through water conservancy diversion
Pipe, then heating tube is flowed to by mozzle, the heat source exhaust outlet in kiln hood direction is flowed to close to kiln body tail position from heating tube.
A kind of optimal technical scheme, the space between the kiln body hollow part and heating tube forms the reative cell；In kiln
The termination of body is designed with material inlet, and the material inlet is communicated with the reative cell, and gypsum material enters from the material inlet
Reative cell, with the ceaselessly rotary motion of kiln body, gypsum material flows to afterbody material outlet from kiln hood, and gypsum material is in reative cell
In carry out heat exchange with kiln body interlayer and heating tube, so as to complete gypsum dehydration process；A material is designed with the end face of kiln hood
Waste gas outlet, and the material waste gas outlet communicates with reative cell.
A kind of optimal technical scheme, is blocked, the problem of influenceing product quality, directly by kiln body to solve calcining kiln afterbody
Afterbody is designed to latticed or lattice-shaped, so both solves the problem of prior art is present, and without design afterbody in addition
Filter, reduces production cost.
Advantages of the present invention：
1st, distribution of the material in calcining kiln is substantially improved, improves the contact surface of kiln temperature, increase material and thermal source
Product, so as to reach energy-conservation, the purpose of high yield；
2nd, calcining air-flow takes first following current reflux type is recycled again, extends heat-exchange time, increases heat exchange area, carry
High heat exchange efficiency；
3rd, modular construction connection and reasonable arrangement, saves cost of manufacture.Compared with the prior art, existing calcining kiln charging aperture, material give up
Gas outlet, heat source high temp hot air intake, heat source exhaust outlet are focused on kiln body termination, make kiln body termination excessively crowded and Pang
Greatly.And heat source exhaust outlet and material waste gas outlet share one outlet passage, so that containing impurity, ash content, carbon particle
Heat source exhaust, with main component be moisture, gypsum particle material waste gas mix, bag-type dust regenerant is difficult to profit
With wasting useful gypsum resource.The present invention gives up these modular construction scattered distributions on kiln body termination and head, above-mentioned two
The separated design in gas outlet, overcomes these defects.Kiln body afterbody is designed to latticed, eliminates special sieves, saves
Cost, while the problem of solving blocking and influence product quality.
Brief description of the drawings
Fig. 1 is the structural representation of invention.
Fig. 2 is Fig. 1 A-A profiles.
Fig. 3 is the schematic diagram of kiln body of the present invention.
Embodiment
As shown in Fig. 1-Fig. 3, a kind of β gyp-incineration, kilns, including frame（19,12）, transmission mechanism 11, power 16, kiln body
8th, reative cell, heating tube 9, material inlet 1, material waste gas outlet 3, material outlet 14, heat source high temp gas feed 17, thermal source give up
Gas outlet 2, mozzle 15, lifting blade 10.Kiln body 8 is arranged on frame（19,12）On, in the drive of power 16 and transmission mechanism 11
It is lower to rotate.Kiln body 8 is designed to hollow interlayer, and heat source high temp gas feed 17 and its seal closure 6, thermal source gas are designed with kiln hood 5
Body enters in kiln body interlayer 7 from the heat source high temp gas feed 17, with material following current in the same direction to the afterbody of kiln body 8, passes through mozzle
15 enter heating tube 9, and heat source gas inversely flow to the direction of kiln hood 5 with material in heating tube 9, heat is designed with the termination of kiln hood 5
Source waste gas outlet 2, heat source gas residual gas is discharged from heat source exhaust outlet 2.Heating tube 9 is fixed on kiln by support frame 18
The inwall of the hollow part of body 8.Space between the hollow part of kiln body 8 and heating tube 9 forms reative cell.Designed in the termination of kiln body 8
There is material inlet 1, and the material inlet 1 is communicated with reative cell, gypsum material enters reative cell from the material inlet 1, with kiln
Body ceaselessly rotary motion, gypsum material from kiln body header stream rearwardly material outlet 14, gypsum material in the reaction chamber with kiln
Body interlayer 7 and heating tube 9 carry out heat exchange, so as to complete gypsum dehydration process.A thing is designed with the end face 4 close to kiln hood 5
Expect waste gas outlet 3, and the material waste gas outlet 3 is communicated with reative cell.
Lifting blade 10 is fixed with the hollow inwall of kiln body 8, lifting blade 10 is the dividing plate by the dividing plate of the uniform decile of reative cell
Transverse shape be designed as stairstepping or fan blade shape or spiral is leaf, the lifting blade of this kind of shape can will smoothly enter reative cell
Material stirring get up, make material as much as possible with kiln body sandwich passage and heating tube hot gas exchange heat, increase material-heat-exchanging
Frequency and it is allowed to be heated evenly.
Blocked to solve calcining kiln afterbody 13, kiln body afterbody 13 is directly designed networking by the problem of influenceing product quality
Trellis or lattice-shaped.
Claims (9)
1. a kind of β gyp-incineration, kilns, including kiln body (8), reative cell, heating tube (9), material inlet (1), material waste gas outlet
(3), material outlet (14), heat source high temp gas feed (17), heat source exhaust outlet (2), mozzle (15), lifting blade (10)；
It is characterized in that：
The kiln body (8) is provided with hollow interlayer, and the hollow interlayer is the downflow type passage of heat source high temp gas and material, described
Heat source high temp gas feed (17) is connected with hollow interlayer, and the heating tube (9) is the adverse current of heat source high temp gas and material
Formula passage, kiln body (8) hollow interlayer is connected by mozzle (15) with heating tube (9), kiln body (8) heat source passages and heating tube
(9) heat source passages composition downflow type and reverse-flow synthesis；
The lifting blade (10) be located at reative cell in, be fixed on kiln body (8) inwall, the lifting blade (10) be designed to by
The dividing plate of the uniform decile of reative cell.
2. β gyp-incineration, kilns according to claim 1, it is characterised in that：The lifting blade (10) is i.e. uniform by reative cell
The transverse shape of the dividing plate of decile is stairstepping.
3. β gyp-incineration, kilns according to claim 1, it is characterised in that：The lifting blade (10) is i.e. uniform by reative cell
The transverse shape of the dividing plate of decile is fan blade shape.
4. β gyp-incineration, kilns according to claim 1, it is characterised in that：The lifting blade (10) is i.e. uniform by reative cell
The transverse shape of the dividing plate of decile is that spiral is leaf.
5. the β gyp-incineration, kilns according to claim 1,2,3 or 4, it is characterised in that：The heat source high temp gas feed
(17) it is located at close to kiln hood (5) position.
6. the β gyp-incineration, kilns according to claim 1,2,3 or 4, it is characterised in that：The heating tube (9) is located at kiln body
(8) center, the heat source exhaust outlet (2) is located at the heating tube (9) close to the end of kiln hood, and is communicated with heating tube (9).
7. β gyp-incineration, kilns according to claim 5, it is characterised in that：The mozzle (15) is located at the heating tube
(9) tail end, kiln body (8) interlayer is connected with heating tube (9).
8. β gyp-incineration, kilns according to claim 5, it is characterised in that：Between the kiln body hollow part and heating tube
Space forms the reative cell；Material inlet (1), and the material inlet (1) and the reaction are designed with the termination of kiln body (8)
Room is communicated；End face (4) in kiln hood (5) is designed with a material waste gas outlet (3), and the material waste gas outlet (3) and reative cell
Communicate.
9. the β gyp-incineration, kilns according to claim 1,2,3 or 4, it is characterised in that：By the afterbody of the kiln body (8)
(13) it is designed to latticed or lattice-shaped.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510392958.4A CN105130229B (en) | 2015-07-07 | 2015-07-07 | A kind of β gyp-incineration, kilns |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510392958.4A CN105130229B (en) | 2015-07-07 | 2015-07-07 | A kind of β gyp-incineration, kilns |
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| Publication Number | Publication Date |
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| CN105130229A CN105130229A (en) | 2015-12-09 |
| CN105130229B true CN105130229B (en) | 2017-07-11 |
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| CN201510392958.4A Active CN105130229B (en) | 2015-07-07 | 2015-07-07 | A kind of β gyp-incineration, kilns |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107935425A (en) * | 2017-11-14 | 2018-04-20 | 湖南昌迅科技环保股份有限公司 | One kind rotation crystallization |
| CN113970103B (en) * | 2020-07-22 | 2023-10-27 | 中冶长天国际工程有限责任公司 | Dangerous waste incineration system and incineration method for embedded kiln body air inlet |
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|---|---|---|---|---|
| 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 |
| CN201031205Y (en) * | 2007-04-25 | 2008-03-05 | 宁夏建筑材料研究院 | Mixed spiral calcining kiln |
| CN201288148Y (en) * | 2008-10-22 | 2009-08-12 | 宁夏建筑材料研究院 | Novel multifuel combustion kiln |
| CN202131228U (en) * | 2011-07-27 | 2012-02-01 | 王立明 | Device for calcining beta-type ceramic mould gypsum |
| CN204779367U (en) * | 2015-07-07 | 2015-11-18 | 湖南昌迅科技环保股份有限公司 | Beta plaster of paris calcining kiln |
| CN204824626U (en) * | 2015-07-07 | 2015-12-02 | 湖南昌迅科技环保股份有限公司 | Beta gypsum calcination kiln |
-
2015
- 2015-07-07 CN CN201510392958.4A patent/CN105130229B/en active Active
Patent Citations (6)
| 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 |
| CN201031205Y (en) * | 2007-04-25 | 2008-03-05 | 宁夏建筑材料研究院 | Mixed spiral calcining kiln |
| CN201288148Y (en) * | 2008-10-22 | 2009-08-12 | 宁夏建筑材料研究院 | Novel multifuel combustion kiln |
| CN202131228U (en) * | 2011-07-27 | 2012-02-01 | 王立明 | Device for calcining beta-type ceramic mould gypsum |
| CN204779367U (en) * | 2015-07-07 | 2015-11-18 | 湖南昌迅科技环保股份有限公司 | Beta plaster of paris calcining kiln |
| CN204824626U (en) * | 2015-07-07 | 2015-12-02 | 湖南昌迅科技环保股份有限公司 | Beta gypsum calcination kiln |
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