CN104310809B - A kind of sandwich lime calcining equipment - Google Patents
A kind of sandwich lime calcining equipment Download PDFInfo
- Publication number
- CN104310809B CN104310809B CN201410564640.5A CN201410564640A CN104310809B CN 104310809 B CN104310809 B CN 104310809B CN 201410564640 A CN201410564640 A CN 201410564640A CN 104310809 B CN104310809 B CN 104310809B
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- Prior art keywords
- shell
- heat insulation
- insulation layer
- heater
- temperature heating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
Abstract
The invention provides a kind of sandwich lime calcining equipment. This equipment includes that charging aperture is positioned at top, discharging opening is positioned at the body of heater of vertical tubbiness of bottom; Described body of heater is from top to bottom divided into preheating feed zone, calcining section and cooling discharging section; Described preheating feed zone is made up of shell, outer heat insulation layer, feed bin, inner heat insulation layer, inner shell from outside to inside successively; Described calcining section is made up of shell, outer heat insulation layer, outer sensing high-temperature heating set, feed bin, internal induction high-temperature heating set, inner heat insulation layer, inner shell from outside to inside successively; Described cooling discharging section is made up of shell, feed bin, inner shell from outside to inside successively; The shell of described calcining section body of heater is provided with some groups of microwave launcher tubes, and the microwave that described microwave launcher tube is launched, by the waveguide through described shell, acts on described sensing high-temperature heating and puts; This equipment volume of production is big, environmental friendliness, non-pollutant discharge, saves the energy, reduces and fires cost.
Description
Technical field
The present invention relates to a kind of lime calcining equipment, be specifically related to a kind of sandwich lime calcining equipment.
Background technology
Fire about Calx, in the past few decades, be all use traditional local method to fire mode, produce being carried out calcining by raw materials such as limestone for fuel with coal or coal gas. The greatest drawback of this method is exactly to form the discharge of a large amount of pollutant, causes serious air ambient to pollute, and especially current haze weather frequently occurs, and makes the production of the sector and development be affected by very big restriction especially. Country made great efforts to renovate and polluted in recent years, ban the enterprise of a lot of local method lime calcining, limited remain some and discharge pollutants and reach the burning equipment of discharging standards, but still suffer from discharge or emission abatement device becomes the problem of ornaments, pollute or a large amount of exist.
Microwave heating technique is to be moved by heated object internal polar molecules high-frequency reciprocating, produces internal friction heat and makes heated temperature of charge raise. At present, utilizing the high-temperature sintering apparatus of microwave mostly to adopt now tunnel kiln structure, space availability ratio is low, energy consumption is high, and lime calcining is uneconomical, therefore, but without application in extensive lime calcining.
Summary of the invention
It is an object of the invention to provide a kind of sandwich lime calcining equipment, this equipment can realize the large-scale production of Calx under eco-friendly premise.
The present invention relates to a kind of sandwich lime calcining equipment, this equipment includes that charging aperture is positioned at top, discharging opening is positioned at the body of heater of vertical tubbiness of bottom, in order to reach better heat preservation and energy conservation effects, and improving production efficiency, the cross section of described body of heater is ring-type sandwich;
This equipment includes that charging aperture is positioned at top, discharging opening is positioned at the body of heater of vertical tubbiness of bottom;
Described body of heater is from top to bottom divided into preheating feed zone, calcining section and cooling discharging section; Described preheating feed zone is made up of shell, outer heat insulation layer, feed bin, inner heat insulation layer, inner shell from outside to inside successively; Described calcining section is made up of shell, outer heat insulation layer, outer sensing high-temperature heating set, feed bin, internal induction high-temperature heating set, inner heat insulation layer, inner shell from outside to inside successively; Described cooling discharging section is made up of shell, feed bin, inner shell from outside to inside successively;
The shell of described calcining section body of heater is provided with some groups of microwave launcher tubes, and the microwave that described microwave launcher tube is launched, by the waveguide through described shell, acts on described sensing high-temperature heating and puts;
The inner shell of described calcining section body of heater is provided with in some groups microwave launcher tube, and the microwave that described interior microwave launcher tube is launched, by the waveguide through described inner shell, acts on described internal induction high-temperature heating and puts.
In order to convenient, body of heater is overhauled, shell is additionally provided with outside described body of heater the some groups of platforms for maintenance.
The discharging opening of above-mentioned body of heater is connected with discharging machine; Described discharging machine is existing drawing and pulling type discharging machine on market, can prevent electromagnetic wave from letting out ripple.
The diameter of the above-mentioned inner chamber defined through inner shell described in body of heater is 600-700mm, and the diameter of the waveguide on shell is 80-100mm, and every tube power is 1000W-1200W/.
Above-mentioned outer casing thickness is 6mm, is made up of carbon steel sheet material, such as corrosion resistant plate.
In order to reach better heating and heat insulation effect, above-mentioned heat-insulation and heat-preservation layer thickness is 300-500mm, is made up of the exotic material not absorbing microwave; Described insulating is made up of ceramic fibre or other materials that can reach equivalent effect.
Above-mentioned sensing high-temperature heating set thickness is 28-32mm, hard inhale microwave exotic material and make; Described sensing high-temperature heating set is made up of graphite and/or carborundum.
Above-mentioned sandwich lime calcining equipment is sling hopper feed by crossbeam crane.
Above-mentioned sandwich lime calcining equipment top also needs to be provided with ceiling, and when making vile weather, production can be performed continuously over.
The invention have the benefit that (1) environmental friendliness: presently disclosed equipment, do not adopt coal and other combustion materials, only with microwave heating, the raw materials such as limestone are carried out the high-temperature firing of 800-1200 degree, without carbon monoxide, sulfur dioxide, the discharge of the pollutant such as oxyhydroxide, only produce carbon dioxide, and this equipment also can connect carbon dioxide collecting device, carbon dioxide collection is applied to industrial application (such as carbon dioxide gas arc welding), agrochemical raw material (as booth vegetable gas is fertile), pharmaceuticals industry (as sodium bicarbonate makes raw material) etc.
(2) saving cost: presently disclosed equipment utilization microwave high-temperature lime calcining, day output is big, up to 1000 tons, saves the energy, reduces calcining cost. According to measuring and calculating: utilizing coal to fire 1 ton of Calx in the north needs 250 kilograms of coals, calculating according to about one ton of coal 500-550 unit, coal consumption cost is about about 120-150 unit. And utilize microwave high-temperature to fire equivalent Calx power consumption less than 140 degree, and once calculating by the electricity charge 0.7 yuan, cost, lower than 100 yuan, is greatly saved production cost.
(3) setting of sandwich in sandwich lime calcining equipment disclosed in this invention, body of heater heat radiation is slow, high insulating effect, and it is big that day produces amount of lime, up to 1000t, quickly improves production efficiency, is suitable to vigorously promote the use.
Accompanying drawing explanation
Fig. 1 is sandwich lime calcining equipment top view;
Fig. 2 is sandwich lime calcining equipment side view.
1-shell, 2-microwave launcher tube, 3a-outer heat insulation layer, 3b-inner heat insulation layer, 4-senses high-temperature heating set, 5-feed bin, 6-platform, and 7-preheats feed zone, and 8-calcines section, 9-cooling discharging section, 10-crossbeam, 11-crane, 12-hopper, 13-body of heater, 14-inner shell.
Detailed description of the invention
The experimental technique used in following embodiment if no special instructions, is conventional method.
Material used in following embodiment, reagent etc., if no special instructions, all commercially obtain.
Embodiment 1, producing 1000 tons of Calx so that the specific embodiment of the present invention to be described for every day below, this equipment includes that charging aperture is positioned at top, discharging opening is positioned at the body of heater 13 of vertical tubbiness of bottom;Body of heater 13 is from top to bottom divided into preheating feed zone 7, calcining section 8 and cooling discharging section 9; Described preheating feed zone 7 is made up of 6mm thick carbon steel plate shell 1,400mm thickness ceramic fibre outer heat insulation layer 3a, feed bin 5,400mm thickness ceramic fibre inner heat insulation layer 3b, 6mm thick carbon steel plate inner shell 14 from outside to inside successively; Described calcining section is made up of sensing high-temperature heating set 4a, feed bin 5,30mm thickness graphite internal induction high-temperature heating set 4b, 370mm thickness ceramic fibre inner heat insulation layer 3b, 6mm thick carbon steel plate inner shell 14 outside 6mm thick carbon steel plate shell 1,370mm thickness ceramic fibre outer heat insulation layer 3a, 30mm thickness graphite from outside to inside successively; Described cooling discharging section 9 is made up of 6mm thick carbon steel plate shell 1, feed bin 5,6mm thick carbon steel plate inner shell 14 from outside to inside successively; The shell of described calcining section body of heater 8 is provided with 4 groups of microwave launcher tubes, and the microwave that described microwave launcher tube is launched, by the waveguide through described shell, acts on described sensing high-temperature heating and puts; The discharging opening of described body of heater is connected with drawing and pulling type discharging machine. The diameter of described waveguide is 90mm, and the power of microwave launcher tube is 1KW/. Outer side is additionally provided with 3 groups of platforms 6 at a distance of 2m, it is simple to repair and maintenance.
When using the said equipment lime burning, first the limestone handled well is loaded in hopper 12, the top of feeding preheating section 8 it is transported to by crossbeam crane 11, limestone is made to enter calcining section body of heater 3 through feeding preheating section body of heater 8, open microwave launcher tube, temperature is made to reach 1000 degree, calcine 20 minutes, microwave is absorbed by high-temperature heating set on the one hand, high-temperature heating sleeving temperature is made to raise, limestone is heated calcining, frequency electromagnetic waves can make rubble molecule occur vibration to produce high temperature on the other hand, rubble is made to be sintered into Calx, open drawing mechanism, Calx is made to enter cooling discharging section 9, by drawing and pulling type discharging machine discharging. when large-scale production, preheating carries out with discharging is capable of circulation.
In the above-described embodiments, select to be various to the material of described body of heater shell, insulating and sensing high-temperature heating set, just may be used as long as intensity and compressive property can reach same effect material, discharging machine, microwave launcher tube group number, platform quantity, waveguide diameters etc. are defined by embodiment, but, the present invention is not limited to above-described embodiment, can be adjusted according to practical condition. Meanwhile, in the above-described embodiments, the size of body of heater designs as required, ordinary circumstance, processing 1000 tons with 24 hours for standard, the external diameter of stove is 3800mm-4100mm, and calcining section internal diameter is 1500mm-1700mm, inner platform spacing is 600mm-650mm, calcining heat and calcination time have been also carried out restriction by above-described embodiment, and in actual production process, temperature is adjusted according to practical condition, for 800-1000 DEG C, calcination time is not all 20-40 minute according to temperature.
Through the Calx that said method obtains, calcic more than 85%, activity degree 250-300, presently disclosed sandwich lime calcining equipment machine is widely used in the field such as iron and steel, building.
Claims (4)
1. a sandwich lime calcining equipment, it is characterised in that: this equipment includes that charging aperture is positioned at top, discharging opening is positioned at the body of heater of vertical tubbiness of bottom;
Described body of heater is from top to bottom divided into preheating feed zone, calcining section and cooling discharging section; Described preheating feed zone is made up of shell, outer heat insulation layer, feed bin, inner heat insulation layer, inner shell from outside to inside successively;Described calcining section is made up of shell, outer heat insulation layer, outer sensing high-temperature heating set, feed bin, internal induction high-temperature heating set, inner heat insulation layer, inner shell from outside to inside successively; Described cooling discharging section is made up of shell, feed bin, inner shell from outside to inside successively;
The shell of described calcining section body of heater is provided with some groups of outer microwave launcher tubes, and the microwave that described outer microwave launcher tube is launched, by the waveguide through described shell, acts on described outer sensing high-temperature heating and puts;
The inner shell of described calcining section body of heater is provided with in some groups microwave launcher tube, and the microwave that described interior microwave launcher tube is launched, by the waveguide through described inner shell, acts on described internal induction high-temperature heating and puts;
The diameter of the inner chamber that described inner shell is defined is 600-700mm, and the diameter of waveguide is 80-100mm;
The thickness of described shell is 6mm-10mm, and described shell and inner shell are made by carbon steel sheet material;
Described outer heat insulation layer and inner heat insulation layer are made by ceramic fibre, and described outer heat insulation layer and inner heat insulation layer thickness are 300-500mm;
Described outer sensing high-temperature heating set is made by graphite and/or carborundum with internal induction high-temperature heating set, and the thickness that described outer sensing high-temperature heating set and internal induction high-temperature heating overlap is 28-32mm.
2. sandwich lime calcining equipment according to claim 1, it is characterised in that: described body of heater shell is provided with the some groups of platforms for maintenance.
3. sandwich lime calcining equipment according to claim 1 and 2, it is characterised in that: the discharging opening of described body of heater is connected with discharging machine.
4. sandwich lime calcining equipment according to claim 3, it is characterised in that: described discharging machine is drawing and pulling type discharging machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410564640.5A CN104310809B (en) | 2014-10-22 | 2014-10-22 | A kind of sandwich lime calcining equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410564640.5A CN104310809B (en) | 2014-10-22 | 2014-10-22 | A kind of sandwich lime calcining equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104310809A CN104310809A (en) | 2015-01-28 |
| CN104310809B true CN104310809B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410564640.5A Expired - Fee Related CN104310809B (en) | 2014-10-22 | 2014-10-22 | A kind of sandwich lime calcining equipment |
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| Country | Link |
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| CN (1) | CN104310809B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113182034B (en) * | 2021-03-25 | 2023-06-30 | 兰陵县福业建材有限公司 | Device for screening out and utilizing waste heat of kiln to calcine limestone in layering mode after crushing |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2390363B (en) * | 2002-06-28 | 2006-06-07 | Boc Group Plc | Methods and apparatus for the preparation of lime |
| CN102435066B (en) * | 2011-11-15 | 2014-01-22 | 湖南阳东微波科技有限公司 | High temperature sintering kiln |
| CN103553373A (en) * | 2013-10-23 | 2014-02-05 | 石家庄新华能源环保科技股份有限公司 | Annular sleeve kiln |
| CN103910499B (en) * | 2014-04-11 | 2016-06-08 | 焦作市强耐建材有限公司 | High-efficiency environment friendly energy-conservation microwave calcined lime device |
| CN104071993B (en) * | 2014-06-26 | 2016-06-01 | 郑州德朗能微波技术有限公司 | The device of a kind of microwave light-calcined magnesite, rhombspar and method |
| CN204185393U (en) * | 2014-10-22 | 2015-03-04 | 张土山 | Sandwich structure lime calcining equipment |
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2014
- 2014-10-22 CN CN201410564640.5A patent/CN104310809B/en not_active Expired - Fee Related
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| CN104310809A (en) | 2015-01-28 |
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