WO2021103898A1 - 一种气膜煤场和钢网架煤场互通配煤*** - Google Patents

一种气膜煤场和钢网架煤场互通配煤*** Download PDF

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WO2021103898A1
WO2021103898A1 PCT/CN2020/124095 CN2020124095W WO2021103898A1 WO 2021103898 A1 WO2021103898 A1 WO 2021103898A1 CN 2020124095 W CN2020124095 W CN 2020124095W WO 2021103898 A1 WO2021103898 A1 WO 2021103898A1
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Prior art keywords
coal
yard
gas
coal yard
steel grid
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PCT/CN2020/124095
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English (en)
French (fr)
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武宝会
吕晨峰
李元昊
成新兴
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西安西热锅炉环保工程有限公司
西安热工研究院有限公司
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Publication of WO2021103898A1 publication Critical patent/WO2021103898A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G63/00—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations
    • B65G63/008—Transferring or trans-shipping at storage areas, railway yards or harbours or in opening mining cuts; Marshalling yard installations for bulk material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04—Bulk
    • B65G2201/045—Sand, soil and mineral ore

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  • the invention belongs to the field of environmental protection facilities for coal yards of coal-fired power plants, and relates to an interoperable coal blending system for a gas film coal yard and a steel grid coal yard.
  • Air film buildings are gradually emerging in the construction industry at home and abroad due to their light weight, good light transmission performance, strong sense of space, simple and convenient construction, short cycle, and less investment. With the requirements of environmental protection departments for the closure of coal yards in thermal power plants It is getting higher and higher, and the original wind and dust suppression nets can no longer meet the environmental protection requirements. Under the background of large investment in steel grid coal yards, long construction periods, and the risk of unorganized emissions, gas film closed coal yards are fully realized. The advantages of closedness, reasonable investment, and short construction period have gradually been recognized by professionals.
  • the air-film enclosed coal yard has very high requirements for air tightness, and its function of communicating with the steel grid coal yard through mechanical equipment is weakened or even lost. Therefore, it is necessary to design a system that can realize the air-tightness. In addition to the independence and air tightness of the fully enclosed coal yard, the mutual coal blending requirements of the film coal yard of coal-fired power plants and the steel grid coal yard are realized.
  • the purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a coal-air-membrane coal yard and a steel grid coal yard interoperating coal blending system, which can ensure the independence and air tightness of the air-membrane coal yard, Realize the mutual coal blending between the film coal yard and the steel grid coal yard.
  • the interoperable coal blending system for membrane gas coal yard and steel grid coal yard includes membrane coal yard, steel grid coal yard and used to realize the relationship between membrane gas coal yard and steel grid coal yard.
  • the coal conveying system that connects and blends the coal between the air film coal yards.
  • the gas film coal yard runs through the gas film coal yard belt coal conveying system
  • the steel grid coal yard runs through the steel grid coal yard underneath the coal conveying belt and the steel grid coal yard.
  • the steel grid coal yard is matched with the lower coal conveying belt.
  • the lower coal conveying belt coal feeding system is provided on the side of the gas film coal yard. There are several gas-locked automobile coal transportation channels on the side of the gas film coal yard.
  • the side of the steel grid coal yard is provided with several steel grid coal.
  • the vehicle coal transportation channel of the yard, the gas film coal yard and the steel grid coal yard are interconnected through the gas lock coal pusher channel, and the coal transportation system is located between the gas film coal yard and the steel grid coal yard.
  • the coal conveying system includes a semi-underground coal conveying gallery, a coal falling grate, a steel coal hopper, a coal feeder, and a coal conveying belt.
  • the semi-underground coal conveying gallery is set in the gas film coal field, and the falling coal grate is set
  • the steel coal scuttle is located in the semi-underground coal conveying gallery, and the top opening of the steel coal scuttle faces the coal drop grate.
  • one end of the coal conveying belt is located under the coal feeder, and the other end of the coal conveying belt is facing the coal drop of the steel grid coal yard.
  • the bottom of the steel coal hopper is provided with an electric lock gate
  • the gas lock pusher channel is provided with a gas lock pusher channel gas lock device
  • the gas lock automobile coal transport channel is provided with a gas lock automobile coal transport channel to lock gas
  • the belt coal conveying system of the gas film coal yard is equipped with a gas lock device for the belt coal conveying system of the gas film coal yard.
  • the coal transportation channels for gas-locked vehicles are arranged on the left and right sides of the film coal field.
  • All steel grid coal yard truck coal transportation channels are arranged on the left and right sides of the steel grid coal yard.
  • the coal conveying system When the gas film coal yard and the steel grid coal yard interoperable coal blending system of the present invention work specifically, the coal conveying system, the gas film coal yard belt coal conveying system, the steel grid coal yard underground coal conveying belt, and the gas lock are used in specific work.
  • the automobile coal transportation channel, the steel grid coal yard, the automobile coal transportation channel and the gas coal pusher channel are interconnected to realize the mutual coal blending between the gas film coal yard and the steel grid coal yard.
  • an electric lock is installed at the bottom of the steel coal scuttle.
  • the gas flap door, the gas lock coal pusher channel is equipped with a gas lock coal pusher channel gas lock device
  • the gas lock automobile coal transport channel is equipped with a gas lock automobile coal transport channel gas lock device
  • the gas film coal yard belt coal conveying system is set up
  • a gas-film coal yard belt coal conveying system gas lock device to ensure the independence and airtightness of the gas-film coal yard, simple structure and convenient operation, with the biggest advantage of saving investment in the gas-film coal yard, and the convenience of mutual coal blending It can meet the stringent requirements of thermal power plants for various coal blending schemes. It can be widely used in the closed transformation of common gas film fully enclosed coal yards and the original steel grid coal yard. It has a good environment for the promotion of thermal power plants. Both benefit and economy.
  • Figure 1 is a schematic diagram of the structure of the present invention
  • FIG. 2 is a schematic diagram of the structure of the coal handling system 3 in the present invention.
  • 1 is a gas film coal yard
  • 2 is a steel grid coal yard
  • 3 is a coal conveying system
  • 4 is a gas lock coal pusher channel
  • 5 is a gas lock automobile coal transportation channel
  • 6 is a gas film coal yard belt coal conveying system System
  • 7 is a gas-film coal yard belt coal conveying system gas lock device
  • 8 is a steel grid coal yard underground coal conveying belt
  • 9 is a steel grid coal yard underground coal conveying belt coal feed system
  • 10 is a steel grid coal yard Automobile coal transportation channel
  • 11 is a semi-underground coal transportation gallery
  • 12 is a coal grate
  • 13 is a steel coal hopper
  • 14 is a coal feeder
  • 15 is a coal conveying belt
  • 16 is an electric gas lock flapper door
  • 17 is a coal hopper. Coal drop.
  • the interoperable coal blending system for membrane gas coal yard and steel grid coal yard includes membrane coal yard 1, steel grid coal yard 2 and used to realize membrane coal yard 1 and steel grid coal yard.
  • Coal conveying system 3 for connecting and blending coal between yards 2.
  • film coal yard 1 runs through a gas film coal yard belt coal conveying system 6, and steel grid coal yard 2 runs through a steel grid coal yard underneath coal conveying belt 8 and the steel grid coal yard coal conveying belt coal feeder system 9 which is matched with the steel grid coal yard underground coal conveying belt 8;
  • the gas film coal yard 1 is provided with several gas-locked automobile coal conveying channels 5, steel mesh Several steel grid coal yard truck coal transportation channels 10 are arranged on the side of coal yard 2.
  • the gas film coal yard 1 and the steel grid coal yard 2 are interconnected through the gas lock coal pusher channel 4, and the coal transportation system 3 is located in the gas Between membrane coal yard 1 and steel grid coal yard 2.
  • the coal conveying system 3 includes a semi-underground coal conveying gallery 11, a coal grate 12, a steel coal hopper 13, a coal feeder 14 and a coal conveying belt 15, among which the semi-underground coal conveying gallery 11 is provided
  • the coal drop grate 12 is set at the top opening of the semi-underground coal conveying corridor 11
  • the steel coal scuttle 13 is located in the semi-underground coal conveying corridor 11, and the top of the steel coal scuttle 13
  • the opening is facing the coal grate 12
  • the bottom opening of the steel coal hopper 13 is provided with a coal feeder 14, one end of the coal conveying belt 15 is located below the coal feeder 14, and the other end of the coal conveying belt 15 is facing the steel grid frame Coal yard 2's coal drop 17
  • the bottom of the steel coal scuttle 13 is provided with an electric gas lock gate 16
  • the gas lock coal pusher channel 4 is provided with a gas lock coal pusher channel gas lock device
  • the gas lock car coal transport channel 5 is provided
  • a gas locking device for the coal transportation channel of gas-locking vehicles and the belt coal conveying system 6 of the gas film coal yard is equipped with a gas locking device for the belt coal conveying system of the gas film coal yard; each gas-locking vehicle coal transportation channel 5 is set up in the gas film coal yard 1.
  • Each steel grid coal yard truck coal transportation channel 10 is set on the left and right sides of the steel grid coal yard 2.
  • the invention realizes the intercommunication of two coal yards with different structures and coal blending and burning in four ways.
  • the belt coal feeding system is mainly based on the belt coal conveying system 6 of the gas film coal yard and the coal conveying belt under the steel grid coal yard.
  • the two types of coal from different coal yards are transported to the coal feeder through two belts respectively.
  • the coal bunker is mixed to realize the coal blending function.
  • the Unicom coal blending system based on the coal conveying system 3 passes the coal burned in the film coal yard 1 through the coal grate 12, the steel coal hopper 13, the electric lock gate 16, the coal feeder 14, the conveyer
  • the coal belt 15 and the coal drop opening 17 are sent to the top of the coal conveying belt coal feeding system 9 under the steel grid coal yard, mixed with the coal of the steel grid coal yard 2 in proportion, and then sent to the steel grid coal yard for coal transportation
  • the belt coal feeding system 9 realizes the coal blending function between the specific coal burning of the film coal yard 1 and the coal burning of the steel grid coal yard 2.
  • the coal-fired and equipment intercommunication system based on the gas-locking coal pusher channel 4 realizes the free intercommunication of specific fuels and coal pushing equipment of different coal yards between the gas film coal yard 1 and the steel grid coal yard 2.
  • the gas pusher channel 4 is composed of two interlocking airtight doors, which have a gas lock function, and the equipment and fuel can communicate with each other during the period without affecting the airtightness of the film coal field 1.
  • the automobile coal transportation system is composed of multiple gas-locked automobile coal transportation channels 5 and multiple steel grid coal yard automobile coal transportation channels 10.
  • the gas-locked automobile coal transportation channel 5 is composed of two interlocking closed doors. Shuttle and intercommunication between film coal yard 1 and steel grid coal yard 2 can realize the proportioned mixing of specific fuels without affecting the airtightness of film coal yard 1.
  • the invention has the greatest advantage of saving investment in the film coal yard 1, meets the air tightness requirements of the film coal yard 1, has the convenience of interoperating coal blending, and satisfies the harsh requirements of thermal power plants for various coal blending schemes.
  • the operation is flexible and very practical. It can be widely used in the closed transformation of common gas film fully enclosed coal yards and the original steel grid coal yard 2. It has good environmental benefits and economic efficiency in the promotion of thermal power plants.

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  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

一种气膜煤场和钢网架煤场互通配煤***，包括气膜煤场(1)、钢网架煤场(2)及用于实现气膜煤场(1)与钢网架煤场(2)之间连通和配煤的输煤***(3)，其中，气膜煤场(1)贯穿有气膜煤场皮带输煤***(6)，钢网架煤场(2)贯穿有钢网架煤场地下输煤皮带(8)以及与钢网架煤场地下输煤皮带(8)相配合的钢网架煤场地下输煤皮带给煤***(9)，气膜煤场(1)的侧膜面设置有若干锁气汽车运煤通道(5)，钢网架煤场(2)的侧面设置有若干钢网架煤场汽车运煤通道(10)，气膜煤场(1)与钢网架煤场(2)之间通过锁气推煤机通道(4)互通，输煤***(3)位于气膜煤场(1)与钢网架煤场(2)之间，该***能够在保证气膜煤场(1)独立性及气密性的同时，实现气膜煤场(1)与钢网架煤场(2)的互通配煤。

Description

一种气膜煤场和钢网架煤场互通配煤*** 技术领域
本发明属于燃煤电厂煤场环保设施领域，涉及一种气膜煤场和钢网架煤场互通配煤***。
背景技术
气膜建筑因其重量轻、透光性能好、空间感强、施工简单方便周期短，投资较少等优势，在国内外建筑行业正在逐步兴起，随着环保部门对火电厂煤场封闭的要求越来越高，原来的防风抑尘网已经无法满足环保要求，在钢网架煤场投资大，建设周期长，存在无组织排放的风险的大背景下，气膜封闭煤场以其完全实现封闭、投资合理、建设周期短的优势，逐步得到专业人士的认可。
目前火电机组的煤场全封闭以改造工程为主，很多火电厂原来设计有部分干煤棚或钢网架封闭煤场，如果继续新建钢网架煤场，投资大，给火电企业造成经济负担，如果拆除原钢网架重新建设气膜封闭煤场，势必增加投资，造成很大的浪费，如保留原钢网架煤场，在旁边扩建气膜煤场，气膜煤场和钢网架煤场的互通和配煤问题无法解决，难以实现掺烧配煤功能及输煤***灵活性调配的需求，对气膜式全封闭煤场提出新的挑战。气膜封闭煤场对气密性的要求非常高，使其与钢网架煤场之间通过机械设备等手段进行互通的功能减弱甚至丧失，因此需要设计出一种***，能够实现在气膜全封闭煤场独立性和气密性的同时，实现燃煤电厂气膜煤场和钢网架煤场的互通配煤要求。
发明内容
本发明的目的在于克服上述现有技术的缺点，提供了一种气膜煤场和钢网架煤场互通配煤***，该***能够在保证气膜煤场独立性及气密性的同时，实现气膜煤场与钢网架煤场的互通配煤。
为达到上述目的，本发明所述的气膜煤场和钢网架煤场互通配煤***包括气膜煤场、钢网架煤场及用于实现气膜煤场与钢网架煤场之间连通和配煤的输煤***，其中，气膜煤场贯穿有气膜煤场皮带输煤***，钢网架煤场贯穿有钢网架煤场地下输煤皮带以及与钢网架煤场地下输煤皮带相配合的钢网架煤场地下输煤皮带给煤***，气膜煤场的侧面设置有若干锁气汽车运煤通道，钢网架煤场的侧面设置有若干钢网架煤场汽车运煤通道，气膜煤场与钢网架煤场之间通过锁气推煤机通道互通，输煤***位于气膜煤场与钢网架煤场之间。
所述输煤***包括半地下输煤廊道、落煤篦子、钢制煤斗、给煤机及输煤皮带，其中，半地下输煤廊道设置于气膜煤场内，落煤篦子设置于半地下输煤廊道的顶部开口位置处，钢制煤斗位于半地下输煤廊道内，且钢制煤斗的顶部开口正对落煤篦子，钢制煤斗的底部开口处设置有给煤机，输煤皮带的一端位于给煤机的下方，输煤皮带的另一端正对钢网架煤场的落煤口。
钢制煤斗底部设置有电动锁气插板门，锁气推煤机通道内设置有锁气推煤机通道锁气装置，锁气汽车运煤通道内设置有锁气汽车运煤通道锁气装置，气膜煤场皮带输煤***内设置有气膜煤场皮带输煤***锁气装置。
各锁气汽车运煤通道设置于气膜煤场的左右两侧。
各钢网架煤场汽车运煤通道设置于钢网架煤场的左右两侧。
本发明具有以下有益效果：
本发明所述的气膜煤场和钢网架煤场互通配煤***在具体工作时，通过输煤***、气膜煤场皮带输煤***、钢网架煤场地下输煤皮带、锁气汽车运煤通道、钢网架煤场汽车运煤通道及锁气推煤机通道互通，实现气膜煤场与钢网架煤场的互通配煤，另外，钢制煤斗底部设置有电动锁气插板门，锁气推煤机通道设置有锁气推煤机通道锁气装置，锁气汽车运煤通道设置有锁气汽车运煤通道锁气装置，气膜煤场皮带输煤***设置有气膜煤场皮带输煤***锁气装置，以保证气膜煤场独立性及气密性，结构简单，操作方便，具有气膜煤场节约投资的最大优势，同时具有互通配煤的便利性，满足火电厂对各种配煤掺烧方案的苛刻要求，能够广泛应用于常见气膜全封闭煤场及原有钢网架煤场的封闭改造，在火电厂推广方面具有很好的环境效益又兼顾经济性。
附图说明
图1为本发明的结构示意图；
图2为本发明中输煤***3的结构示意图。
其中，1为气膜煤场、2为钢网架煤场、3为输煤***、4为锁气推煤机通道、5为锁气汽车运煤通道、6为气膜煤场皮带输煤***、7为气膜煤场皮带输煤***锁气装置、8为钢网架煤场地下输煤皮带、9为钢网架煤场地下输煤皮带给煤***、10为钢网架煤场汽车运煤通道、11为半地下输煤廊道、12为落煤篦子、13为钢制煤斗、14为给煤机、15为输 煤皮带、16为电动锁气插板门、17为落煤口。
具体实施方式
下面结合附图对本发明做进一步详细描述：
参考图1，本发明所述的气膜煤场和钢网架煤场互通配煤***包括气膜煤场1、钢网架煤场2及用于实现气膜煤场1与钢网架煤场2之间连通和配煤的输煤***3，其中，气膜煤场1贯穿有气膜煤场皮带输煤***6，钢网架煤场2贯穿有钢网架煤场地下输煤皮带8以及与钢网架煤场地下输煤皮带8相配合的钢网架煤场地下输煤皮带给煤***9，气膜煤场1的侧面设置有若干锁气汽车运煤通道5，钢网架煤场2的侧面设置有若干钢网架煤场汽车运煤通道10，气膜煤场1与钢网架煤场2之间通过锁气推煤机通道4互通，输煤***3位于气膜煤场1与钢网架煤场2之间。
参考图2，所述输煤***3包括半地下输煤廊道11、落煤篦子12、钢制煤斗13、给煤机14及输煤皮带15，其中，半地下输煤廊道11设置于气膜煤场1内，落煤篦子12设置于半地下输煤廊道11的顶部开口位置处，钢制煤斗13位于半地下输煤廊道11内，且钢制煤斗13的顶部开口正对落煤篦子12，钢制煤斗13的底部开口处设置有给煤机14，输煤皮带15的一端位于给煤机14的下方，输煤皮带15的另一端正对钢网架煤场2的落煤口17。
需要说明的是，钢制煤斗13底部设置有电动锁气插板门16，锁气推煤机通道4内设置有锁气推煤机通道锁气装置，锁气汽车运煤通道5内设置有锁气汽车运煤通道锁气装置，气膜煤场皮带输煤***6内设置 有气膜煤场皮带输煤***锁气装置；各锁气汽车运煤通道5设置于气膜煤场1的左右两侧；各钢网架煤场汽车运煤通道10设置于钢网架煤场2的左右两侧。
本发明在具体工作时，通过四种方式实现两种不同结构煤场的互通和配煤掺烧。
1、以气膜煤场皮带输煤***6及钢网架煤场地下输煤皮带为主的皮带上煤***，将不同煤场的两种燃煤，分别通过两条皮带输送到给煤机煤仓中进行混合，实现配煤掺烧功能。
2、以输煤***3为主的联通配煤***，将气膜煤场1的燃煤通过落煤篦子12、钢制煤斗13、电动锁气插板门16、给煤机14、输煤皮带15以及落煤口17送到钢网架煤场地下输煤皮带给煤***9的上方，和钢网架煤场2的燃煤按比例混合后送到钢网架煤场地下输煤皮带给煤***9上，实现气膜煤场1的特定燃煤与钢网架煤场2的燃煤的配煤功能。
3、以锁气推煤机通道4为主的燃煤及设备互通***，实现不同煤场特定燃料以及推煤设备在气膜煤场1与钢网架煤场2之间的自由互通，锁气推煤机通道4由两道互锁的密闭门组成，具有锁气功能，设备和燃料在期间互通而不影响气膜煤场1的密闭性。
4、由多个锁气汽车运煤通道5和多个钢网架煤场汽车运煤通道10组成的汽车运煤***，锁气汽车运煤通道5由两道互锁的密闭门组成，汽车在气膜煤场1与钢网架煤场2之间穿梭互通，实现特定燃料按比例的配比混合，而不会影响气膜煤场1的密闭性。
本发明具有气膜煤场1节约投资的最大优势，满足气膜煤场1的气 密性要求，具有互通配煤的便利性，满足火电厂对各种配煤掺烧方案的苛刻要求，运行操作灵活，非常实用，能够广泛应用于常见气膜全封闭煤场及原有钢网架煤场2的封闭改造，在火电厂推广方面具有很好的环境效益又兼顾经济性。
以上仅为说明本发明的技术思想，不能以此限定本发明的保护范围，凡按照本发明提出的技术思想，在技术方案基础上所做的任何改动，均落入本发明的保护范围之内。

Claims (5)

  1. 一种气膜煤场和钢网架煤场互通配煤***，其特征在于，包括气膜煤场(1)、钢网架煤场(2)及用于实现气膜煤场(1)与钢网架煤场(2)之间连通和配煤的输煤***(3)，其中，气膜煤场(1)贯穿有气膜煤场皮带输煤***(6)，钢网架煤场(2)贯穿有钢网架煤场地下输煤皮带(8)以及与钢网架煤场地下输煤皮带(8)相配合的钢网架煤场地下输煤皮带给煤***(9)，气膜煤场(1)的侧面设置有若干锁气汽车运煤通道(5)，钢网架煤场(2)的侧面设置有若干钢网架煤场汽车运煤通道(10)，气膜煤场(1)与钢网架煤场(2)之间通过锁气推煤机通道(4)互通，输煤***(3)位于气膜煤场(1)与钢网架煤场(2)之间。
  2. 根据权利要求1所述的气膜煤场和钢网架煤场互通配煤***，其特征在于，所述输煤***(3)包括半地下输煤廊道(11)、落煤篦子(12)、钢制煤斗(13)、电动锁气插板门(16)、给煤机(14)及输煤皮带(15)，其中，半地下输煤廊道(11)设置于气膜煤场(1)内，落煤篦子(12)设置于半地下输煤廊道(11)的顶部开口位置处，钢制煤斗(13)位于半地下输煤廊道(11)内，且钢制煤斗(13)的顶部开口正对落煤篦子(12)，钢制煤斗(13)的底部开口处设置有给煤机(14)，输煤皮带(15)的一端位于给煤机(14)的下方，输煤皮带(15)的另一端正对钢网架煤场(2)的落煤口(17)。
  3. 根据权利要求2所述的气膜煤场和钢网架煤场互通配煤***，其特征在于，钢制煤斗(13)底部设置有电动锁气插板门(16)，锁气推煤机通道(4)内设置有锁气推煤机通道锁气装置，锁气汽车运煤通道(5)内设置有锁气汽车运煤通道锁气装置，气膜煤场皮带输煤***(6)内设置有气膜煤场皮带输煤***锁气装置。
  4. 根据权利要求1所述的气膜煤场和钢网架煤场互通配煤***，其特征在于，各锁气汽车运煤通道(5)设置于气膜煤场(1)的左右两侧。
  5. 根据权利要求1所述的气膜煤场和钢网架煤场互通配煤***，其特征在于，各钢网架煤场汽车运煤通道(10)设置于钢网架煤场(2)的左右两侧。
PCT/CN2020/124095 2019-11-28 2020-10-27 一种气膜煤场和钢网架煤场互通配煤*** WO2021103898A1 (zh)

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