CN104261708A - Energy-saving chemical gypsum drying and calcining system - Google Patents
Energy-saving chemical gypsum drying and calcining system Download PDFInfo
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- CN104261708A CN104261708A CN201410495033.8A CN201410495033A CN104261708A CN 104261708 A CN104261708 A CN 104261708A CN 201410495033 A CN201410495033 A CN 201410495033A CN 104261708 A CN104261708 A CN 104261708A
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Abstract
The invention discloses an energy-saving chemical gypsum drying and calcining system which comprises a hot-blast furnace and a cylindrical drying and calcining kiln communicated with the hot-blast furnace, wherein the cylindrical drying and calcining kiln is supported on a rolling support device through a wheel belt and driven by a kiln revolution variable-frequency motor; a green material conveyer arranged at the front end of the cylindrical drying and calcining kiln and a raw material treatment machine connected to the upper end of the green material conveyer are sequentially arranged on a delivery conveyer, a dust remover and a draught fan at the back end of the cylindrical drying and calcining kiln; and a hot flow controller is arranged between the hot-blast furnace and cylindrical drying and calcining kiln communicated with the hot-blast furnace and between the cylindrical drying and calcining kiln and dust remover. Hot air flow can be guided to flow in a spiral mode, so that the hot air flow can generate a tornado-flow heat transfer effect in the kiln and have a quick-sweeping heat exchange effect, thereby postponing the hot flow discharge time, lowering the discharge temperature of the air flow, saving the energy and greatly enhancing the heat exchange efficiency.
Description
Technical field
The present invention relates to a kind of gypsum to dry and calcination system, particularly a kind of energy-saving chemical gypsum is dried and calcination system.
Background technology
Chemical gypsum, refers in industrial by-products or discharge to take calcium sulfate as the object of main component, is referred to as chemical gypsum.Mainly containing desulfurated plaster, phosphogypsum, titanium gypsum, nickel gypsum, fluorgypsum etc., is all trade waste.Every annual emissions is more than one hundred million ton nearly, as developed not in time, can produce severe contamination, destroy ecotope and the life condition of the mankind to soil, water source, air.Therefore, the meaning developing chemical gypsum resource is not only to replace the plaster of paris, and alleviates the exhaust emission of solid slag, reduces the landfill expense of solid slag costliness.Dry the materials for wall that can do a lot of kind with the gypsum calcined out, as Thistle board, self-insulation gypsum building block, gypsum wallboard etc.Be the model of solid waste comprehensive utilization, meet national energy-saving and reduce discharging, the policy of economy capable of circulation and Sustainable development.
Initial ejection thing due to chemical gypsum is the sand powdery or muddy that water ratio is higher, therefore must through drying or could using after calcining.At present, dry and calcination system for chemical gypsum, due to difficult control of temperature or control not accurate enough, and chemical gypsum is very responsive to temperature, changeful in oven dry with calcination process, directly affect the phase transformation of gypsum, therefore, often make oven dry very unstable with the gypsum product quality of calcining out, quality is difficult to improve, and directly affects the quality of derived product; Simultaneously, due in existing oven dry and calcination system, the flow condition that hot blast enters stove is advection, and air-flow always to depletion region and windage less place flowing (asking for an interview Fig. 6), hot gas flow has mostly flowed away from spacious district (Ji Tuzhong A district), taken away a large amount of heats, cause the airflow temperature of coming out of the stove higher, heat utilization ratio is lower; And the district that gathers materials, the right needs the resistance of place due to material of heat, distinguished and admirable few on the contrary, hot gas flow has not fully just flowed away with cold material heat exchange, and heat utilization ratio is lower, causes waste, and it is larger to consume energy.
Summary of the invention
The object of the present invention is to provide one can not only guarantee quality product and quality highly stable, and have save energy, the rotary type chemical gypsum of enhancing productivity is dried and calcination system.
Its technical scheme is: a kind of energy-saving chemical gypsum is dried and calcination system, comprise hotblast stove, the cartridge type be communicated with hotblast stove is dried, calcining kiln, cartridge type is dried, calcining kiln to be bearing on rolling bearing device by wheel belt and to turn round variable-frequency motor by kiln body and drives, be arranged on cartridge type to dry, raw material reader and the Feedstock treating machine being connected to raw material reader upper end of calcining kiln front end, be successively set on cartridge type to dry, the outfeed belt conveyor of calcining kiln rear end, fly-ash separator and induced draft fan, it is characterized in that: the described cartridge type be communicated with hotblast stove is dried, between calcining kiln and cartridge type dry, the first and second hot-fluid controllers are respectively equipped with between calcining kiln and fly-ash separator.
Its beneficial effect is: due to the cartridge type that is communicated with at hotblast stove dry, between calcining kiln and cartridge type dry, between calcining kiln and fly-ash separator, be respectively equipped with hot-fluid controller, therefore the two mutual cooperation, bootable hot gas flow flows in a spiral manner, make hot gas flow can produce the eddy flow of tornado in oven dry, calcining kiln, utilize whirlwind power that hot gas flow is just fully pierced in material in material falling process to go, and the material that can fully kick up in stove of heat transfer effect of tornado flowing, can produce and high efficiencyly skim over heat transfer effect; Again because hot gas flow flows in a spiral manner, the residence time of hot gas flow in kiln can also be extended, hot gas flow and cold material is made to reach abundant heat exchange, thus delayed the kiln discharge time of hot-fluid, reduce the kiln discharge temperature of air-flow, save the energy, substantially increased heat exchange efficiency, achieve better heat transfer effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 of the present inventionly electricly connects schematic diagram;
Fig. 4 is hot-fluid controller architecture schematic diagram;
Fig. 5 is the side-view of Fig. 4;
Fig. 6 is hot gas flow and material advection state schematic cross-section in traditional kiln;
Fig. 7 improves hot gas flow and material eddy flow state schematic cross-section in rear kiln;
Embodiment
As shown in Figure 1-2, a kind of energy-saving chemical gypsum is dried and calcination system, comprise hotblast stove 4, the cartridge type be communicated with hotblast stove is dried, calcining kiln 5, cartridge type is dried, calcining kiln to be bearing on rolling bearing device by wheel belt and turn round variable-frequency motor 10 by kiln body and drive, be arranged on that cartridge type is dried, the raw material reader 2 of calcining kiln front end and the Feedstock treating machine 1 (Feedstock treating machine inside is provided with material scattering and homogenization device) that is connected on raw material reader upper end, be successively set on that cartridge type is dried, the outfeed belt conveyor 6 of calcining kiln rear end, fly-ash separator 8 and induced draft fan 9.Described oven dry, between calcining kiln 5 and hotblast stove 4 and cartridge type is dried, be provided with the first and second hot-fluid controllers 3 between calcining kiln 5 and fly-ash separator 8.
Described first and second hot-fluid controllers 3 are made up of (see Fig. 4,5) servomotor, cylindrical shell, flow deflector, adjustment circle, regulating wheel and support roller set respectively.Servomotor 301 and adjustment circle 306 are arranged on the cylindrical of cylindrical shell 304, six pieces of flow deflectors 305 by flow deflector axle radially all apart from being arranged in cylindrical shell, flow deflector axle is flexibly connected with the mandrel be arranged in cylindrical shell 304, one end of flow deflector is stretched out cylindrical shell and is fixedly connected with the second regulating wheel 308 be arranged on cylindrical shell respectively outward, and cylindrical shell outer rim and adjustment are enclosed between inner edge and supported by support roller set 309; The clutch end of servomotor is connected with the first regulating wheel (not shown) meshing with adjusting circle 306.Servomotor drives adjustment circle 306 to rotate by the first regulating wheel, adjustment circle 306 drives second regulating wheel 308 of flow deflector one end to rotate, thus drive six flow deflectors according to synchronous rotary at any angle within the scope of the 0-70 degree of setting, the helix angle of the larger hot-fluid of flow deflector angle of rotation is less (helical pitch is less), the flow process of hot-fluid in kiln is longer, the time that hot-fluid is detained in kiln is also longer, therefore the mutual cooperation of the first and second hot-fluid controllers, bootable hot gas flow flows in a spiral manner, make hot gas flow in oven dry, the heat transfer effect (see Fig. 7) of tornado flowing can be produced in calcining kiln, utilize whirlwind power that hot gas flow is just fully pierced in material in material falling process to go, and the material that the heat transfer effect of tornado flowing can fully be kicked up in stove, can produce and high efficiencyly skim over heat transfer effect, again because hot gas flow flows in a spiral manner, the residence time of hot gas flow in kiln can also be extended, hot gas flow and cold material is made to reach abundant heat exchange, thus delayed the kiln discharge time of hot-fluid, reduce the kiln discharge temperature of air-flow, save the energy, substantially increased heat exchange efficiency, achieve better heat transfer effect.
Cylindrical shell 304 in above-mentioned hot-fluid controller 3 is circumferentially provided with thermal insulation layer 307, and its effect is that the heat in isolated cylindrical shell must not outwards distribute, and must not make heat waste and ensure that the machinery outside cylinder can not run well by temperature disturbance with electric.
Above-mentioned flow deflector 305 is provided with stop means (not shown), can limit flow deflector and rotate counterclockwise from axial zero degree in inner barrel and arbitrarily angledly to the scope of 70 degree to be rotated by Serve Motor Control.
In order to improve the intelligent management level of this system, guarantee further quality product and quality highly stable, native system is also provided with intelligent-tracking control device (see Fig. 3), intelligent-tracking control device is by the servomotor in programmable logic controller PLC and the above-mentioned first and second hot-fluid controllers 3 that are electrically connected with programmable logic controller, variable-frequency motor in raw material reader 2, variable-frequency motor in induced draft fan 9 is with kiln body revolution variable-frequency motor 10 and be arranged on the control module 302 that the first and second hot-fluid controllers 3 are connected with IC temperature sensor 303, be arranged on cartridge type to dry, the warm and humid illumination integrated transducer of PH-C2 of calcining kiln 5 discharge outlet is formed, form network control system, programmable logic controller PLC is arranged in Master Control Room, so that monitoring and adjustment use.
The data that the hot gas recorded flows into kiln temperature degree and kiln discharge temperature are passed to temperature control module 302 by IC temperature sensor 303 respectively that be arranged on the first and second hot-fluid controllers 3, data-switching becomes electrical signal to export programmable logic controller PLC to by temperature control module, programmable logic controller is according to the temperature of setting, respectively steering order is sent to the servomotor in the first and second hot-fluid controllers 3, to control the flow deflector angle of rotation in hot-fluid controller, by changing the adjustment of the eddy flow spiral angle of hot gas flow residence time that realizes hot gas flow in kiln, thus realize the maximum value that hot gas flow and material carry out heat exchange in kiln, control and reduce the kiln discharge temperature of hot gas flow, reach the energy-conservation object with enhancing productivity, meanwhile, the humidity data of the kiln discharge material of programmable logic controller measured by the warm and humid illumination integrated transducer of PH-C2, respectively steering order is sent to the variable-frequency motor in the variable-frequency motor in raw material reader 2 and kiln body revolution variable-frequency motor 10 and induced draft fan 9, to adjust the speed that material enters speed that the speed of kiln and material flow in kiln and material kiln discharge, thus realize the control of total system overall intelligenceization, to realize optimum energy-saving effect and to enhance productivity substantially.
Claims (6)
1. an energy-saving chemical gypsum is dried and calcination system, comprise hotblast stove, the cartridge type be communicated with hotblast stove is dried, calcining kiln, cartridge type is dried, calcining kiln to be bearing on rolling bearing device by wheel belt and to turn round variable-frequency motor by kiln body and drives, be arranged on cartridge type to dry, raw material reader and the Feedstock treating machine be connected on raw material reader upper end of calcining kiln front end, be successively set on cartridge type to dry, the outfeed belt conveyor of calcining kiln rear end, fly-ash separator and induced draft fan, it is characterized in that: the described cartridge type be communicated with hotblast stove (4) is dried, between calcining kiln (5) and cartridge type dry, the first and second hot-fluid controllers (3) are respectively equipped with between calcining kiln and fly-ash separator (8).
2. the energy-saving chemical gypsum of one according to claim 1 is dried and calcination system, it is characterized in that: described first and second hot-fluid controllers (3) are made up of servomotor, cylindrical shell, flow deflector, adjustment circle, regulating wheel and support roller respectively; Servomotor (301) and adjustment circle (306) are arranged on the cylindrical of cylindrical shell (304), six pieces of flow deflectors (305) are that warp-wise is all apart from being arranged in cylindrical shell by flow deflector axle, flow deflector axle is flexibly connected with the mandrel be arranged in cylindrical shell, one end of flow deflector is stretched out cylindrical shell and is fixedly connected with the second regulating wheel (308) be arranged on cylindrical shell respectively outward, and cylindrical shell outer rim and adjustment are enclosed between inner edge and supported by support roller set (309); The clutch end of servomotor is connected with and encloses first meshing regulating wheel of (306) with adjusting.
3. the energy-saving chemical gypsum of one according to claim 2 is dried and calcination system, it is characterized in that: the cylindrical shell (304) in described first and second hot-fluid controllers (3) is circumferentially provided with thermal insulation layer (307).
4. the energy-saving chemical gypsum of one according to claim 2 is dried and calcination system, it is characterized in that: described flow deflector (305) is provided with stop means.
5. the energy-saving chemical gypsum of one according to claim 1 is dried and calcination system, it is characterized in that: described rotary type chemical gypsum is dried and is provided with intelligent-tracking control device with calcination system.
6. the energy-saving chemical gypsum of one according to claim 5 is dried and calcination system, it is characterized in that: described intelligent-tracking control device is by the servomotor in programmable logic controller (PLC) and the first and second hot-fluid controllers (3) of being electrically connected with programmable logic controller, variable-frequency motor in raw material reader (2), variable-frequency motor in induced draft fan (9) is with kiln body revolution variable-frequency motor (10) and be arranged on the upper control module (302) be connected with IC temperature sensor (303) of the first and second hot-fluid controllers (3), be arranged on oven dry, the warm and humid illumination integrated transducer of calcining kiln (5) discharge outlet is formed.
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| CN201410495033.8A CN104261708B (en) | 2014-09-24 | 2014-09-24 | A kind of energy-saving chemical gypsum is dried and calcination system |
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| CN201410495033.8A CN104261708B (en) | 2014-09-24 | 2014-09-24 | A kind of energy-saving chemical gypsum is dried and calcination system |
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| CN104261708B CN104261708B (en) | 2016-02-10 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105157377A (en) * | 2015-10-27 | 2015-12-16 | 张荣斌 | Fly ash drying machine |
| CN105293967A (en) * | 2015-01-13 | 2016-02-03 | 江苏国翔环保科技有限公司 | Cement additive production device and manufacturing technique thereof |
| 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 |
| CN110451831A (en) * | 2019-08-28 | 2019-11-15 | 绵竹市恒远环保科技有限公司 | Building gypsum plaster calcine technology and device |
| CN110803876A (en) * | 2019-11-25 | 2020-02-18 | 江苏一夫科技股份有限公司 | II type anhydrous gypsum thermal coupling production device and method |
| CN114873937A (en) * | 2022-04-20 | 2022-08-09 | 中建材创新科技研究院有限公司 | Powder calcining system, plate drying system and hot air system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105293967A (en) * | 2015-01-13 | 2016-02-03 | 江苏国翔环保科技有限公司 | Cement additive production device and manufacturing technique thereof |
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| CN105157377B (en) * | 2015-10-27 | 2018-06-12 | 张荣斌 | Flyash dryer |
| 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 |
| CN110451831A (en) * | 2019-08-28 | 2019-11-15 | 绵竹市恒远环保科技有限公司 | Building gypsum plaster calcine technology and device |
| CN110803876A (en) * | 2019-11-25 | 2020-02-18 | 江苏一夫科技股份有限公司 | II type anhydrous gypsum thermal coupling production device and method |
| CN110803876B (en) * | 2019-11-25 | 2020-09-18 | 江苏一夫科技股份有限公司 | II type anhydrous gypsum thermal coupling production device and method |
| CN114873937A (en) * | 2022-04-20 | 2022-08-09 | 中建材创新科技研究院有限公司 | Powder calcining system, plate drying system and hot air system |
| CN114873937B (en) * | 2022-04-20 | 2023-03-24 | 中建材创新科技研究院有限公司 | Powder calcining system, plate drying system and hot air system |
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| CN104261708B (en) | 2016-02-10 |
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Effective date of registration: 20180820 Address after: 200000 5, 310 Jin Gao Road, Pudong New Area, Shanghai. Patentee after: Shanghai Magi Home Building Technology Co., Ltd. Address before: 230001 Tongling new road, Hefei, Anhui, 5 North East commercial port, Patentee before: Anhui Jinma Environmental Protection Energy-Saving Technology Co., Ltd. |