CN102491659B - Fluidized bed type gypsum calcining device - Google Patents
Fluidized bed type gypsum calcining device Download PDFInfo
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- CN102491659B CN102491659B CN 201110394053 CN201110394053A CN102491659B CN 102491659 B CN102491659 B CN 102491659B CN 201110394053 CN201110394053 CN 201110394053 CN 201110394053 A CN201110394053 A CN 201110394053A CN 102491659 B CN102491659 B CN 102491659B
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Abstract
The invention relates to a fluidized bed type gypsum calcining device which consists of a calcining furnace, a fire coal hot-blast stove, a Roots fan, a bagroom and a raw material preheater, wherein the calcining furnace is composed of two parts namely a gasification chamber and a main calcining body; the main calcining body is provided with three calcining chambers which are relatively independent; the lower part of each calcining chamber is connected with an isobaric air bellow and connected with the Roots fan; the main calcining body is internally provided with a heat exchange pipe which is respectively communicated with the fire coal hot-blast stove and the raw material preheater; the gasification chamber is arranged above the main calcining body; the top of the gasification chamber is provided with a rotoclone collector; the upper part of the rotoclone collector is provided with a moistureproof port; and the bagroom is installed above the rotoclone collector. By using the gypsum calcining device, the thermal efficiency and dust removal efficiency are improved, thereby solving the mixing problem of high-low temperature materials and ensuring the quality of a product.
Description
Technical field
The present invention relates to a kind of fluidized bed type gypsum calcining device.
Background technology
The vertical fluidizing furnace calcination system of the many employings of current domestic calcining semi-hydrated gypsum, by two Room calcining furnaces, for material is blown afloat, make material form the Root's blower of boiling shape in body of heater, for the heat transfer tube of terra alba calcined dehydration, for the high voltage electrostatic precipitator device that catches terra alba dehydration institute discharged steam dust, for the thermal oil assembly of the heat exchange of thermal oil and hotblast stove and system thermal oil Fluid Circulation and form for the equipment such as hotblast stove to the thermal oil indirect heating.This system adopts hotblast stove heating thermal oil, and thermal oil reheats terra alba by heat transfer tube, and the thermo-efficiency of secondary heat exchange is low; This system adopts two Room calcining furnaces, and two bottoms, Room communicate, and relatively not independent, terra alba advance, and causes it to be heated inhomogeneous, is heterogeneous admixture, causes unstable product quality; It is difficult that the high voltage electrostatic precipitator plant efficiency is low, it is high to invest, dust removal fittings is changed
;thermal oil, as heat transferring medium, makes heat exchanging pipe be difficult to cleaning; The unclear quarrel mouthful of this system, the foreign material such as cleaning fragment of brick, maintenance iron quarrel need to stop producing, and workman's operating environment is poor, and labour intensity is high.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of constant product quality, heat exchange efficiency is high and efficiency of dust collection is good fluidized bed type gypsum calcining device are provided.
For addressing the above problem, the technical solution adopted in the present invention is:
A kind of fluidized bed type gypsum calcining device, by calcining furnace, Coalhotairfurnace, roots blower, bagroom and feed preheater, formed, described calcining furnace is forged body two portions by vaporizing chamber and master and is formed, described master forges body three relatively independent calcining compartments, the locellus dividing plate is installed in calcining compartment, each calcining compartment is divided into to the Liang Ge district, and the bottom of each calcining compartment is connected with isobaric bellows, and the high-pressure blast entrance on isobaric bellows is connected with roots blower; Main forging in body, heat transfer tube is installed, the hot-wind inlet of described heat transfer tube front end is communicated with Coalhotairfurnace, and the tail gas outlet of tail end communicates with feed preheater; Vaporizing chamber is positioned at the main body top of forging, and the feeding mouth on vaporizing chamber communicates with feed preheater, and discharge port is positioned at the offside of vaporizing chamber feeding mouth; At the vaporizing chamber top, cyclone is installed, anti-tide port is installed on cyclone top, and bagroom is installed on the top of cyclone, with feed preheater, with anti-tide port, is connected respectively; Be installed with a slag outlet in the bottom of each calcining compartment.
Wherein, be provided with three high-pressure blast entrances on calcining furnace, be fixedly mounted on respectively on each calcining compartment.
The present invention compared with prior art, has following beneficial effect:
1, thermo-efficiency improves: Coalhotairfurnace enters calcining furnace, by heat transfer tube, terra alba is heated up, a heat exchange, and the tail gas outlet of calcining furnace communicates with feed preheater, and tail gas preheating terra alba, improved thermo-efficiency;
2, product stability improves: adopt the calcining compartment of three relatively independent differing tempss, raw material is heated evenly, and the product phase structure is single, steady quality;
3, later maintenance is good: in heat transfer tube, medium is the high temperature clean flue gas, need not consider cleaning; Ad hoc clear quarrel mouthful, open i.e. row, do not affect production, and the quarrel thing focuses on, simple to operate; The dust removal installation consumable accessory only has filter bag, and it is convenient to change, and without danger;
4, efficiency of dust collection is high: adopt the one-level cyclone, and the dedusting of secondary cloth bag type, efficiency of dust collection is high.
The accompanying drawing explanation
Fig. 1 is the workflow diagram of fluidized bed type gypsum calcining device of the present invention.
Fig. 2 is the structural representation of calcining furnace in fluidized bed type gypsum calcining device of the present invention.
Fig. 3 is the left view of Fig. 2.
Embodiment
A kind of fluidized bed type gypsum calcining device, be comprised of calcining furnace, Coalhotairfurnace, roots blower, bagroom and feed preheater, and wherein calcining furnace is by vaporizing chamber 1 with mainly forge body 3 two portions and form.
Described master forges body 3 three relatively independent calcining compartments, and locellus dividing plate 11 is installed in each calcining compartment, and each calcining compartment is divided into to the Liang Ge district, and the bottom of each calcining compartment is installed with a slag outlet 8.The bottom of each calcining compartment is connected with isobaric bellows 7, and the high-pressure blast entrance 13 on isobaric bellows 7 all connects roots blower.Main forging in body 3, heat transfer tube 5 is housed, the hot-wind inlet 4 of heat transfer tube 5 front ends communicates with Coalhotairfurnace, and the tail gas outlet 14 of tail end communicates with feed preheater.Vaporizing chamber 1 is positioned at main top of forging body 3, and the feeding mouth 2 on vaporizing chamber 1 communicates with feed preheater.At vaporizing chamber 1 top, cyclone 9 is installed, anti-tide port 10 is installed on cyclone top, and bagroom is installed on the top of cyclone 9, and left side connects feed preheater, and bottom is connected with anti-tide port 10, and top is evacuation port.Discharge port 12 is positioned at the offside of vaporizing chamber feeding mouth 2.
800 ℃ of high-temperature hot-airs that Coalhotairfurnace produces enter calcining furnace by hot-wind inlet 4, through heat transfer tube 5, after material-heat-exchanging, 150 ℃ of tail gas are discharged incoming stock preheater from tail gas outlet 14, and feed preheater takes full advantage of the waste heat of discharging tail gas to the preheating that heated up of dihydrate gypsum raw material.
Dihydrate gypsum raw material after preheating enters calcining furnace by feeding mouth 2, and the high-pressure blast entered with high-pressure blast entrance 13 evenly mixes, under its effect with stove in heat transfer tube 5 after the hot blast effect conducted heat exchange and convective heat exchange.
Calcining furnace is designed to three relatively independent differing temps calcining compartments, be respectively high-temperature calcination chamber, low temperature calcination chamber, calcining at constant temperature chamber, locellus dividing plate 11 is installed in each calcining compartment, each calcining compartment is divided into to the Liang Ge district, effect due to high-temperature hot-air, Yi, bis-genus high-temperature zones, district in the high-temperature calcination chamber in calcining furnace, in the low temperature calcination chamber, San, 4th district belong to cold zone; Wu, six genus flat-temperature zones, district in the calcining at constant temperature chamber, due to contain >=6% attached water of terra alba self, the terra alba raw material is after the calcining furnace high-temperature zone completes the material intensification task before adhering to evaporation of water and terra alba generation combination reaction, enter cold zone successively and flat-temperature zone completes combination reaction by the overflow mode, slough 2/3 water molecules of terra alba raw material, overflow to finished product discharge port 12, enter finished bin.
The water vapor produced in whole calcination process and high pressure positive blower drum advance the lingering remnants of past customs and carry the part terra alba, after the cyclone primary dust removing, by the humidity discharging mouth, are discharged, and enter sack cleaner after pre-hot exhaust gas mixes and carry out two-stage dust removal.
Consider the fluid effect that can affect calcining furnace of sneaking into of impurity in production process, at each calcining compartment of calcining furnace, a slag outlet 8 is set, can when normal production, open the slag outlet gate, enter the spiral that is cut clearly, be delivered to the storehouse otherwise processed that is cut.
Claims (2)
1. a fluidized bed type gypsum calcining device, by calcining furnace, Coalhotairfurnace, roots blower, bagroom and feed preheater, formed, it is characterized in that: described calcining furnace consists of vaporizing chamber (1) and main body (3) two portions of forging, described master forges body (3) three relatively independent calcining compartments, locellus dividing plate (11) is installed in calcining compartment, each calcining compartment is divided into to the Liang Ge district, the bottom of each calcining compartment is connected with isobaric bellows (7), and the high-pressure blast entrance (13) on isobaric bellows (7) is connected with roots blower; Main forging in body (3), heat transfer tube (5) is installed, the hot-wind inlet (4) of described heat transfer tube (5) front end is communicated with Coalhotairfurnace, and the tail gas outlet (14) of tail end communicates with feed preheater; Vaporizing chamber (1) is positioned at main body (3) top of forging, and the feeding mouth (2) on vaporizing chamber (1) communicates with feed preheater, and discharge port (12) is positioned at the offside of vaporizing chamber feeding mouth (2); At vaporizing chamber (1) top, cyclone (9) is installed, anti-tide port (10) is installed on cyclone top, and bagroom is installed on the top of cyclone (9), with feed preheater, with anti-tide port (10), is connected respectively; Be installed with a slag outlet (8) in the bottom of each calcining compartment.
2. fluidized bed type gypsum calcining device according to claim 1, it is characterized in that: described calcining furnace has three high-pressure blast entrances (13), is fixedly mounted on respectively on each calcining compartment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110394053 CN102491659B (en) | 2011-12-02 | 2011-12-02 | Fluidized bed type gypsum calcining device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110394053 CN102491659B (en) | 2011-12-02 | 2011-12-02 | Fluidized bed type gypsum calcining device |
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| CN102491659A CN102491659A (en) | 2012-06-13 |
| CN102491659B true CN102491659B (en) | 2013-03-27 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104150520B (en) * | 2014-08-04 | 2015-10-28 | 孟昭全 | Dry method, semi-dry desulphurization ash two sections revolution oxygen enrichment external heat oxidizing process and device |
| CN109775666B (en) * | 2019-02-22 | 2020-07-07 | 山东大学 | Device and method for preparing sulfur by coal gasification in cooperation with calcium sulfate calcination and carbon thermal reduction |
| CN109761519B (en) * | 2019-03-15 | 2024-04-09 | 泰安杰普石膏科技有限公司 | Intelligent calcining system for building gypsum and using method |
| CN112028512A (en) * | 2020-09-18 | 2020-12-04 | 安徽实强环保新材料科技有限公司 | Gypsum powder calcining process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2311764A1 (en) * | 1975-05-23 | 1976-12-17 | Rhone Poulenc Ind | METHOD AND APPARATUS FOR THERMAL TRANSFORMATION OF GYPSUM |
| US7121713B2 (en) * | 2004-02-27 | 2006-10-17 | United States Gypsum Company | Swinging agitator for a gypsum calcining apparatus and the like |
| CN100562504C (en) * | 2006-09-29 | 2009-11-25 | 北京朗新明环保科技有限公司 | Gypsum fluo solid roaster and the processing method of producing plaster of Paris with this stoving oven |
| CN101830655B (en) * | 2010-06-09 | 2012-03-21 | 山东天力干燥股份有限公司 | Energy-saving gypsum calcination system and process |
| CN202390324U (en) * | 2011-12-02 | 2012-08-22 | 宋乐柱 | Fluidized bed type gypsum calcination device |
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Granted publication date: 20130327 Termination date: 20131202 |