CN104296133A - Low-heating-value solid powder combustion device - Google Patents

Low-heating-value solid powder combustion device Download PDF

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Publication number
CN104296133A
CN104296133A CN201410593071.7A CN201410593071A CN104296133A CN 104296133 A CN104296133 A CN 104296133A CN 201410593071 A CN201410593071 A CN 201410593071A CN 104296133 A CN104296133 A CN 104296133A
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CN
China
Prior art keywords
combustion
solid powder
air
combustion adjuvant
airduct
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Application number
CN201410593071.7A
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Chinese (zh)
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CN104296133B (en
Inventor
陈兵
刘淑良
谢新兵
史桂平
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Shandong Borun Environmental Protection Technology Co., Ltd
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SHANDONG BORUN PROCESS INDUSTRIAL TECHNOLOGY CORP Ltd
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Priority to CN201410593071.7A priority Critical patent/CN104296133B/en
Publication of CN104296133A publication Critical patent/CN104296133A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D1/00Burners for combustion of pulverulent fuel
    • F23D1/02Vortex burners, e.g. for cyclone-type combustion apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/001Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D2201/00Burners adapted for particulate solid or pulverulent fuels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00Specific waste
    • F23G2209/12Sludge, slurries or mixtures of liquids

Abstract

A low-heating-value solid powder combustion device comprises a shell and a feeding pipe fixedly connected to one end of the shell. The low-heating-value solid powder combustion device is structurally characterized in that the shell is of a hollow tubular structure, the feeding pipe is communicated with the shell, the end, connected with the feeding pipe, of the shell is further provided with an air duct device, a combustion improver input device and a pulse igniter, the air duct device is used for providing combustion air, the combustion improver input device is used for inputting combustion improvers, the pulse igniter is used for ignition, and the end, located in the shell, of the pulse igniter is connected with a diffusion cap which is used for diffusing the mixture of the combustion air, the combustion improvers and solid powder in the shell. The low-heating-value solid powder combustion device is automatically controlled by a PLC, and the amount of the combustion air and auxiliary fuel does not need manual intervention; two times of tangential swirling combustion air is used for supporting combustion, combustion is stable and efficient, and self-sustained combustion of low-heating-value material is guaranteed. Incineration disposal of coal slime, sludge and other large solid powder can be achieved, the heating value of the solid powder is fully utilized, and resource utilization of solid waste is achieved.

Description

A kind of low heat value solid powder burner
Technical field
The present invention relates to powder combustion device, particularly relate to a kind of low heat value solid powder burner.
Background technology
In industrial production, usually can produce a large amount of low heat value solid powders, especially with the low heat value solid powder that mud, coal slime are representative, it has discharge capacity and the huge feature of volume of cargo in storage; If these calorific value solid powders can not be processed in time, not only occupy valuable land resource, also easily cause the pollution of environment; There is no method of disposal rapidly and efficiently at present, and traditional landfill, store up means due to many critical defects and forbidden gradually.
Low heat value solid powder itself is a kind of resource, if can effectively process, not only can eliminate its environmental pollution, can also provide suitable raw material for industrial production and building.Current employing burning process low heat value solid powder, conventional combustion apparatus mainly contains coal burner, fluidized-bed combustion boiler etc., such as low calorie fuels combustor disclosed in Chinese patent ZL201320330966.2, it is when lower heat of combustion material, need a large amount of high heating value materials, and without the auxiliary setting of mixing of materials, combustion process can not fully be carried out; Therefore, existing equipment is extremely low to the treatment effeciency of low heat value solid powder, needs a large amount of auxiliary fuels, and burning is extremely insufficient, nearly all can not process the solid powder of calorific value at below 2000kcal/kg.Existing low heat value solid powder combustion apparatus has following main technical disadvantages: 1, almost can not self-sustaining burning to the powder of below 2000kcal/kg, need consume a large amount of auxiliary fuels.2, burning is abundant not, has a large amount of calorific value not utilize.3, combustion flame temperature is low, generally lower than 1000 DEG C.4, portioning requirement is evaporated into solid material high, generally can not higher than 30%.5, require high to moisture, General Requirements can not higher than 5%.This limits the technical bottleneck of combustion method process low heat value solid powder just, and does not also have effective solution route at present.
Summary of the invention
The object of this invention is to provide a kind of low heat value solid powder burner, it is high, low and control advantage easily to the requirement of low heat value solid, powdery that it has burning treatment effeciency.
The present invention is achieved like this, a kind of low heat value solid powder burner, it comprises housing and is cemented in the feeding pipe of shell end, its design feature is, described housing is the tubular structure of hollow, feeding pipe is connected with housing, one end that described housing is connected with feeding pipe is also provided with the air pipe device for providing combustion air, for passing into the combustion adjuvant input unit of combustion adjuvant and the pulse igniter for lighting a fire, one end that pulse igniter is positioned at housing is connected with for by combustion air, the mixture of combustion adjuvant and solid powder disperses the dispersion cap be diffused in the burning cavity of housing.Described burning cavity is provided with the refractory masses being close to inner walls.
Described combustion adjuvant input unit comprises the combustion adjuvant outer tube be sleeved on outside feeding pipe, the combustion adjuvant that is communicated with combustion adjuvant outer tube enters and manages and be connected to combustion adjuvant and enter the combustion adjuvant valve of managing for controlling combustion adjuvant flow.Combustion adjuvant outer tube is entered when combustion adjuvant enters pipe by combustion adjuvant under the control of combustion adjuvant valve, solid powder now in combustion adjuvant and feeding pipe is isolated, mix until both are passed in pulse igniter, this is beneficial to the concentrated combustion of material, avoids the dispersion of heat.
Described air pipe device comprises the air main that current stabilization airduct, eddy flow airduct and one end are connected with burning cavity, and the air main part between air main and burning cavity is also connected with the combustion-supporting valve of master for controlling combustion air flow; One end of described current stabilization airduct is connected with air main successively with one end of eddy flow airduct, the other end of current stabilization airduct is connected with the current stabilization outer tube be sleeved on outside combustion adjuvant outer tube, and the other end of eddy flow airduct is connected with the pulse igniter be sleeved on outside current stabilization outer tube; Described current stabilization airduct and eddy flow airduct are respectively equipped with the current stabilization valve for controlling to pass into air quantity and eddy flow valve; Described feeding pipe, combustion adjuvant outer tube are positioned at the open-ended of pulse igniter with current stabilization outer tube and are communicated with.
A part of combustion air in air pipe device enters in current stabilization outer tube by the control of current stabilization valve through current stabilization airduct, forms parallel airflow; Part combustion air enters in pulse igniter by the control of eddy flow valve through eddy flow airduct, forms the air-flow rotated; Parallel airflow and swirling eddy are isolation in pipe, until parallel airflow and swirling eddy arrive mixing place of solid powder and combustion adjuvant, are sprayed by high pressure; Under the disturbance of parallel airflow and swirling eddy, solid powder and combustion adjuvant mixing very even, now pulse igniter controls igniting, and under the drive of swirling eddy, solid powder and combustion adjuvant Rotational diffusion, too increase the burning time of powder.Come from the air-flow entered in burning cavity of air main, the uniformity of solid powder and combustion adjuvant mixing can be increased further, improve the efficiency of burning.
Preferably: described pulse igniter is just provided with flare to feeding pipe place, be positioned at flare in T-shaped dispersion cap, and with flare dimensional fits.Be injected in burning cavity from the homogeneous mixture of the solid powder of pulse igniter high pressure ejection, combustion adjuvant and combustion air by disperseing cap to disperse; The design of dispersion cap is beneficial to the even diffusion of mixture, at burning cavity combustion Thorough combustion.
Preferably: described low heat value solid powder burner also comprises PLC automatic control system, it comprises the sensor for temperature, pressure and solid powder in sniffer, combustion air and combustion adjuvant flow, for the valve control device that performs control command and the controller be connected between sensor and valve control device.PLC automatic control system can control the flow of solid powder, combustion air and combustion adjuvant easily according to program setting, temperature, pressure etc. in real time monitoring apparatus, to realize best combustion efficiency.
Beneficial effect of the present invention is: the present invention adopts PLC automatically to control, and combustion air and auxiliary fuel consumption do not need manual intervention; Adopt twice tangential swirl combustion air combustion-supporting, flameholding, efficient, ensure low heat value material self-sustaining burning.Its device itself also has compact conformation, safeguards advantage simply and easily, and the present invention can realize carrying out incineration disposal to large solid powder such as coal slime, mud, and makes full use of the calorific value of solid powder, realizes the recycling of solid waste.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In the drawings, 1, refractory masses 2, housing 3, main combustion-supporting valve 4, air main 5, current stabilization valve 6, current stabilization airduct 7, eddy flow valve 8, eddy flow airduct 9, pulse igniter 10, combustion adjuvant enter pipe 11, combustion adjuvant valve 12, feeding pipe 13, dispersion cap 14, combustion adjuvant outer tube 15, current stabilization outer tube 16, burning cavity.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
As shown in Figure 1, the present invention is achieved like this, it comprises housing 2 and is cemented in the feeding pipe 12 of housing 2 end, its design feature is, described housing 2 is the tubular structure of hollow, feeding pipe 12 is connected with housing 2, one end that described housing 2 is connected with feeding pipe 12 is also provided with the air pipe device for providing combustion air, for passing into the combustion adjuvant input unit of combustion adjuvant and the pulse igniter 9 for lighting a fire, one end that pulse igniter 9 is positioned at housing 2 is connected with for by combustion air, the mixture of combustion adjuvant and solid powder disperses the dispersion cap 13 be diffused in the burning cavity 16 of housing 2.Described burning cavity 16 is provided with the refractory masses 1 being close to housing 2 inwall.
Described combustion adjuvant input unit comprises the combustion adjuvant outer tube 14 be sleeved on outside feeding pipe 12, the combustion adjuvant that is communicated with combustion adjuvant outer tube 14 enters pipe 10 and is connected to combustion adjuvant and enters on pipe 10 for controlling the combustion adjuvant valve 11 of combustion adjuvant flow.Combustion adjuvant outer tube 14 is entered when combustion adjuvant enters pipe 10 by combustion adjuvant under the control of combustion adjuvant valve 11, solid powder now in combustion adjuvant and feeding pipe 12 is isolated, mix until both are passed in pulse igniter 9, this is beneficial to the concentrated combustion of material, avoids the dispersion of heat.
Described air pipe device comprises the air main 4 that current stabilization airduct 6, eddy flow airduct 7 and one end are connected with burning cavity 16, and air main 4 part between air main 4 and burning cavity 16 is also connected with the combustion-supporting valve 3 of master for controlling combustion air flow; One end of described current stabilization airduct 6 is connected with air main 4 successively with one end of eddy flow airduct 7, the other end of current stabilization airduct 6 is connected with the current stabilization outer tube 15 be sleeved on outside combustion adjuvant outer tube 14, and the other end of eddy flow airduct 7 is connected with the pulse igniter be sleeved on outside current stabilization outer tube 15; Described current stabilization airduct 6 and eddy flow airduct 7 are respectively equipped with the current stabilization valve 5 for controlling to pass into air quantity and eddy flow valve 7; Described feeding pipe 12, combustion adjuvant outer tube 14 are positioned at the open-ended of pulse igniter 9 with current stabilization outer tube 15 and are communicated with.Part combustion air enters in current stabilization outer tube 15 by the control of current stabilization valve 5 through current stabilization airduct 6, forms parallel airflow; Part combustion air enters in pulse igniter 9 by the control of eddy flow valve 7 through eddy flow airduct 7, forms the air-flow rotated; Parallel airflow and swirling eddy are isolation in pipe, until parallel airflow and swirling eddy arrive mixing place of solid powder and combustion adjuvant, are sprayed by high pressure; Under the disturbance of parallel airflow and swirling eddy, solid powder and combustion adjuvant mixing very even, now pulse igniter 9 controls igniting, and under the drive of swirling eddy, solid powder and combustion adjuvant Rotational diffusion, too increase the burning time of powder.Come from the air-flow entered in burning cavity 16 of air main 4, the uniformity of solid powder and combustion adjuvant mixing can be increased further, improve the efficiency of burning.
Described pulse igniter 9 is just provided with flare to feeding pipe 12 place, is positioned at flare in T-shaped dispersion cap 13, and with flare dimensional fits.Be injected in burning cavity 16 from the homogeneous mixture of the solid powder of pulse igniter 9 high pressure ejection, combustion adjuvant and combustion air by disperseing cap 13 to disperse; The design of dispersion cap 13 is beneficial to the even diffusion of mixture, at burning cavity 16 combustion Thorough combustion.
Described low heat value solid powder burner also comprises PLC automatic control system, it comprises the sensor for temperature, pressure and solid powder in sniffer, combustion air and combustion adjuvant flow, for the valve control device that performs control command and the controller be connected between sensor and valve control device.PLC automatic control system can control the flow of solid powder, combustion air and combustion adjuvant easily according to program setting, temperature, pressure etc. in real time monitoring apparatus, to realize best combustion efficiency, in PLC automatic control system, the particular location of sensor is the temperature and the baroceptor that are positioned at burning cavity 16, be positioned at the mass flow rate sensing of feeding pipe 12, be positioned at the combustion adjuvant flow sensor that combustion adjuvant enters pipe 10, be positioned at current stabilization airduct 6, combustion air flow and baroceptor etc. in eddy flow airduct 7 and air main 4, the sensor is connected to controller, controller is according to setting combustion parameter, current stabilization valve 5 is controlled in real time by valve control device, eddy flow valve 7, main combustion-supporting valve 3, the valve that combustion adjuvant valve 11 and control powder enter, realize mate with controller parameter best combustion time condition and combination of components.
Operation principle of the present invention and production implementation process are such.
This device can be used to lower heat of combustion solid, powdery material, as mud, coal slime etc., it be adapted to moisture content less than 30% solid, powdery material, volatile content less than 40% solid, powdery material, be adapted to the solid granular material of calorific value 1000kcal/kg-2000kcal/kg and the solid, powdery material of the ash content of coal less than 50%.Its combustion flame temperature can reach more than 1000 DEG C, and sludge calorific value utilization rate is up to more than 95%.
Its specific works process is: low heat value solid powder, under air-flow drives, enters in combustion apparatus from feeding pipe 12, and pan feeding stream pressure, generally at more than 5kPa, combustion-supportingly to enter from air main 4, and combustion air pressure is generally at more than 20kPa.Combustion air enters combustion apparatus from three passages, is respectively current stabilization airduct 6 and current stabilization valve 5, eddy flow airduct 8 and eddy flow valve 7, leads combustion-supporting valve 3.Combustion adjuvant enters pipe 10 by combustion adjuvant and combustion adjuvant valve 11 enters combustion apparatus.Pulse igniter 9 is positioned at material inlet place, plays ignition action.Combustion apparatus head mainly contains housing 2 and refractory masses 1 forms, and plays support and protective effect.Low heat value solid powder is after feeding pipe 12 sprays into combustion apparatus, under dispersion cap 13 acts on, the diffusion in divergent shape in burning cavity 16, its diffusion process is under the effect from Whirl deposite tank and Parallel airflow, diffusion mode is transformed to Rotational diffusion or DIFFUSION IN TURBULENCE, the combustion air entered in burning cavity 16 through main combustion-supporting valve 3 in whole diffusion process can play booster action to the eddy flow of diffusion process, promote powder Rotational diffusion in combustion, further increase the burning time of powder, improve combustibility.

Claims (7)

1. a low heat value solid powder burner, it comprises housing (2) and is cemented in the feeding pipe (12) of housing (2) end, it is characterized in that, the tubular structure that described housing (2) is hollow, feeding pipe (12) is connected with housing (2), one end that described housing (2) is connected with feeding pipe (12) is also provided with the air pipe device for providing combustion air, for passing into the combustion adjuvant input unit of combustion adjuvant and the pulse igniter (9) for lighting a fire, one end that pulse igniter (9) is positioned at housing (2) is connected with for by combustion air, the mixture of combustion adjuvant and solid powder disperses the dispersion cap (13) be diffused in the burning cavity (16) of housing (2).
2. low heat value solid powder burner as claimed in claim 1, it is characterized in that, described combustion adjuvant input unit comprise be sleeved on feeding pipe (12) combustion adjuvant outer tube (14) outward, the combustion adjuvant that is communicated with combustion adjuvant outer tube (14) enters to manage (10) and be connected to combustion adjuvant and enters and manage on (10) for controlling the combustion adjuvant valve (11) of combustion adjuvant flow.
3. low heat value solid powder burner as claimed in claim 1 or 2, it is characterized in that, described air pipe device comprises the air main (4) that current stabilization airduct (6), eddy flow airduct (7) and one end are connected with burning cavity (16), and air main (4) part between air main (4) and burning cavity (16) is also connected with the combustion-supporting valve of master (3) for controlling combustion air flow;
One end of described current stabilization airduct (6) is connected with air main (4) successively with one end of eddy flow airduct (7), the other end of current stabilization airduct (6) be sleeved on combustion adjuvant outer tube (14) current stabilization outer tube (15) outward and be connected, the other end of eddy flow airduct (7) be sleeved on current stabilization outer tube (15) pulse igniter outward and be connected; Described current stabilization airduct (6) and eddy flow airduct (7) are respectively equipped with the current stabilization valve (5) for controlling to pass into air quantity and eddy flow valve (7).
4. low heat value solid powder burner as claimed in claim 3, it is characterized in that, described feeding pipe (12), combustion adjuvant outer tube (14) are positioned at the open-ended of pulse igniter (9) with current stabilization outer tube (15) and are communicated with.
5. low heat value solid powder burner as claimed in claim 1, it is characterized in that, described pulse igniter (9) is just provided with flare to feeding pipe (12) place, be positioned at flare in T-shaped dispersion cap (13), and with flare dimensional fits.
6. low heat value solid powder burner as claimed in claim 1, it is characterized in that, described burning cavity (16) is provided with the refractory masses (1) being close to housing (2) inwall.
7. low heat value solid powder burner as claimed in claim 1, it is characterized in that, described low heat value solid powder burner also comprises PLC automatic control system, it comprises the sensor for temperature, pressure and solid powder in sniffer, combustion air and combustion adjuvant flow, for the valve control device that performs control command and the controller be connected between sensor and valve control device.
CN201410593071.7A 2014-10-28 2014-10-28 A kind of low heat value solid powder burner Active CN104296133B (en)

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CN104296133B CN104296133B (en) 2017-06-06

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105627328A (en) * 2016-03-17 2016-06-01 北京建筑材料科学研究总院有限公司 Cement kiln solid waste disposal oxygen-enriched combustor
CN111895389A (en) * 2020-07-24 2020-11-06 西北工业大学 Device and method for organizing metal powder through stable combustion

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010047554A (en) * 1999-11-22 2001-06-15 윤영석 Pulverized coal burner
CN1707161A (en) * 2004-06-07 2005-12-14 气体产品与化学公司 Burner and process for combustion of a gas capable of reacting to form solid products
CN2878935Y (en) * 2006-04-11 2007-03-14 王立臣 Clean burner using coal instead of oil
CN102230630A (en) * 2011-06-03 2011-11-02 芜湖三峰节能设备有限公司 Hot blast stove for burning waste gas
CN102620292A (en) * 2012-04-23 2012-08-01 哈尔滨工业大学 High-temperature oxygen-rich igniting flame stabilizer for pulverized coal
CN204187612U (en) * 2014-10-28 2015-03-04 山东博润工业技术股份有限公司 A kind of low heat value solid powder burner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010047554A (en) * 1999-11-22 2001-06-15 윤영석 Pulverized coal burner
CN1707161A (en) * 2004-06-07 2005-12-14 气体产品与化学公司 Burner and process for combustion of a gas capable of reacting to form solid products
CN2878935Y (en) * 2006-04-11 2007-03-14 王立臣 Clean burner using coal instead of oil
CN102230630A (en) * 2011-06-03 2011-11-02 芜湖三峰节能设备有限公司 Hot blast stove for burning waste gas
CN102620292A (en) * 2012-04-23 2012-08-01 哈尔滨工业大学 High-temperature oxygen-rich igniting flame stabilizer for pulverized coal
CN204187612U (en) * 2014-10-28 2015-03-04 山东博润工业技术股份有限公司 A kind of low heat value solid powder burner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105627328A (en) * 2016-03-17 2016-06-01 北京建筑材料科学研究总院有限公司 Cement kiln solid waste disposal oxygen-enriched combustor
CN105627328B (en) * 2016-03-17 2017-09-26 北京建筑材料科学研究总院有限公司 A kind of cement kiln solidification disposal of waste oxygen-enriched burner
CN111895389A (en) * 2020-07-24 2020-11-06 西北工业大学 Device and method for organizing metal powder through stable combustion

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Effective date of registration: 20191213

Address after: No. 369, Yumin Road, high tech Zone, Zibo City, Shandong Province

Patentee after: Shandong Borun Environmental Protection Technology Co., Ltd

Address before: 255000 Shandong province Zibo City Yumin Road hi tech Development Zone No. 169

Patentee before: Shandong Borun Process Industrial Technology Corp., Ltd.