CN2450513Y

CN2450513Y - Raw coal burner

Info

Publication number: CN2450513Y
Application number: CN00240985.2U
Authority: CN
Inventors: 王和
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-10
Filing date: 2000-11-10
Publication date: 2001-09-26
Anticipated expiration: 2010-11-10

Abstract

The utility model is a new type of raw coal burner, the main air chamber is formed between the shell and the inner tank, which is filled with fresh air, and the bottom air chamber is formed between the base and the grate, which is also filled with fresh air. In addition to maintaining continuous combustion, the raw coal also plays a role of sealing and heat insulation. There are vent holes around the inner tank, so that whether it is positive pressure air supply or negative pressure air intake, the main combustion area can get sufficient fresh air. The raw coal burns hotly and emits a white flame from the flame hole, which is used by various furnaces, kilns and stoves, eliminating the defects of black smoke and polluting the environment, and opening up for the new construction and renovation of various furnaces, kilns, and stoves that burn raw coal. new channels.

Description

Raw coal burner

本实用新型是一种新型的燃烧器。The utility model is a novel burner.

现常用的燃烧器为油燃烧器和气燃烧器，但我国是个产煤大国，主要的燃料是煤，目前以煤为燃料的各类炉、窑、灶普遍存在着加煤冒黑烟和因供氧不足而造成出力不足等缺陷，导致热效率低，环境污染严重。The commonly used burners are oil burners and gas burners, but my country is a large coal-producing country, and the main fuel is coal. At present, coal is used as fuel in various furnaces, kilns, and stoves. Defects such as insufficient output caused by insufficient oxygen lead to low thermal efficiency and serious environmental pollution.

本实用新型的目的是设计一种新型的原煤燃烧器，不但能克服上述因供氧不足而出力不足，加煤冒黑烟污染环境等缺陷，广泛地应用于各类新建炉、窑、灶中，而且能将现有冒黑烟的炉、窑、灶改造成无黑烟，为煤燃料的利用开辟新的渠道。The purpose of this utility model is to design a new type of raw coal burner, which can not only overcome the above-mentioned defects such as insufficient output due to insufficient oxygen supply, black smoke from adding coal to pollute the environment, etc., it can be widely used in various new furnaces, kilns, and stoves , and can transform existing black-smoky furnaces, kilns, and stoves into non-smoky ones, opening up new channels for the utilization of coal fuel.

本实用新型的目的是这样来实现的，原煤燃烧器的内胆由耐火材料制成或用金属材料制成水套形式，外壳及底部由金属材料或耐火材料制成，内胆与外壳之间的空间和底部空间充满了新鲜空气，该新鲜空气由鼓风机吹入(使内膛形成正压)或由高烟囱抽力或引风机吸入(使内膛形成负压)，原煤燃烧器的顶部为煤斗和金属上盖，煤斗中的原煤除保持连续燃烧外还起到密封和隔热作用，对应于内膛主燃烧区部位，在内胆四周设置了若干个通风孔，使预热后的新鲜空气源源不断地进入主燃烧区，使煤炽热地燃烧，在正压或负压的作用下，无黑度的白色火烟猛烈地从喷火口喷出，提供炉、窑、灶使用。The purpose of this utility model is achieved in this way. The inner container of the raw coal burner is made of refractory material or made of metal material in the form of a water jacket, and the shell and the bottom are made of metal material or refractory material. The space and the bottom space are filled with fresh air, which is blown in by the blower (making the inner chamber form a positive pressure) or sucked by a high chimney draft or induced draft fan (making the inner chamber form a negative pressure), and the top of the raw coal burner is The coal scuttle and the metal upper cover, the raw coal in the coal scuttle not only maintains continuous combustion, but also plays a role of sealing and heat insulation. Corresponding to the main combustion area of the inner chamber, several ventilation holes are set around the inner tank to make the coal burner after preheating The fresh air continuously enters the main combustion area to make the coal burn hotly. Under the action of positive or negative pressure, white smoke without blackness is violently ejected from the burner port, which can be used in furnaces, kilns and stoves.

本实用新型结构简单，不仅热效率高，不污染环境，而且可以广泛地应用于各类燃煤炉、窑、灶的新建和改造中。The utility model has the advantages of simple structure, high thermal efficiency and no environmental pollution, and can be widely used in the new construction and renovation of various coal-fired furnaces, kilns and stoves.

现结合附图对本实用新型所提原煤燃烧器作进一步的说明。Now in conjunction with accompanying drawing, the proposed raw coal burner of the utility model is further described.

图1是本实用新型所提原煤燃烧器的示意图。Fig. 1 is the schematic diagram of the proposed raw coal burner of the utility model.

从图1中可以看出，原煤燃烧器主要由底座1、铸铁炉排2、外壳4、内胆6、煤斗7、上盖8等组成，其中底座1、外壳4、煤斗7、上盖8均由金属材料或耐火材料制成，内胆6由耐火材料制成或用金属材料制成水套形式，内胆6与外壳4之间的空间形成主空气室A，该主气室A可贯通成一体也可分隔成若干个，其上装有进气管B以输入新鲜空气，如被隔板5分隔成上气室10和下气室15，底座1和炉排2之间的空间为底气室16，在上气室10、下气室15、底气室16上分别设置了进气管9、14、18以分别向各气室提供新鲜空气，外壳4的外侧设置了若干个观察孔13，另一外侧在炉排2上的灰渣层以上部位设置了喷火孔3，该喷火孔3的一端通往内膛，另一端伸出外壳4外，对应于内膛中主燃烧区12的部位，在内胆6的四周开有若干个通气孔11，各通气孔11的一端分别与主气室A即上气室10、下气室15相通，其另一端通往主燃烧区12，各观察孔13的中心与相应的通气孔11处于同轴位置，以便观火与捅火，炉排2上堆积引燃物和原煤，煤斗7中的原煤提供原煤燃烧器的连续燃烧，同时起到了密封和隔热的作用，当原煤燃烧器工作时，先在炉排2上放置引火物，点燃后通过进气管18向底气室16内送入新鲜空气、逐步加煤从观察孔13中看到煤层着火，当着火的煤层高度达到下气室15的上部后，即将煤斗7中的煤加满并关闭上盖8，这时鼓风机(图中未画出)通过进气管9、14、18源源不断地输入新鲜空气，使炉壳4与内胆6之间的空间和底座1与炉排2之间的空间，即上气室10、下气室15和底气室16中均充满了正压的新鲜空气，该正压的新鲜空气又通过通气孔11输入主燃烧区12，克服了供氧不足的缺陷，使煤炽热地燃烧，火焰从上而下穿过煤的还原氧化层燃烧，燃烧时产生的辐射热一方面使主燃烧12以上的新鲜煤层于馏、干燥，所产生的挥发物穿过主燃烧区12时被炽热的火焰充分燃尽，克服了冒烟的缺陷，白色的火焰从喷火孔3中猛烈地喷出供给炉、窑、灶中使用，另一方面，辐射热又预热了各气室10、15、16中的新鲜空气，提高燃烧温度。It can be seen from Figure 1 that the raw coal burner is mainly composed of a base 1, a cast iron grate 2, a casing 4, an inner tank 6, a coal hopper 7, and an upper cover 8, among which the base 1, the outer casing 4, the coal hopper 7, the upper The cover 8 is made of metal material or refractory material, the inner tank 6 is made of refractory material or made of metal material in the form of a water jacket, and the space between the inner tank 6 and the outer shell 4 forms the main air chamber A, the main air chamber A can be integrated into a whole or can be divided into several, on which the air inlet pipe B is installed to input fresh air, such as being divided into an upper air chamber 10 and a lower air chamber 15 by a partition 5, and the space between the base 1 and the grate 2 For the base air chamber 16, air intake pipes 9, 14, 18 are respectively provided on the upper air chamber 10, the lower air chamber 15, and the base air chamber 16 to provide fresh air to each air chamber respectively, and several observation holes are arranged on the outer side of the shell 4 13. On the other side, a flame injection hole 3 is set above the ash layer on the fire grate 2. One end of the flame injection hole 3 leads to the inner chamber, and the other end extends out of the shell 4, corresponding to the main combustion chamber in the inner chamber. In the area 12, there are several ventilation holes 11 around the inner tank 6, and one end of each ventilation hole 11 communicates with the main air chamber A, that is, the upper air chamber 10 and the lower air chamber 15, and the other end leads to the main combustion chamber. District 12, the center of each observation hole 13 is in the coaxial position with corresponding air hole 11, so that watch fire and poke fire, pile up igniter and raw coal on the fire grate 2, the raw coal in the coal hopper 7 provides the continuous operation of the raw coal burner. Combustion plays the role of sealing and heat insulation at the same time. When the raw coal burner is working, first place a firelighter on the grate 2, and after ignition, send fresh air into the base gas chamber 16 through the air intake pipe 18, and gradually add coal from observation. The coal seam is seen to be on fire in the hole 13. When the height of the coal seam on fire reaches the top of the lower air chamber 15, the coal in the coal bucket 7 is filled up and the upper cover 8 is closed. At this time, the blower (not shown) passes through the air intake pipe 9, 14, 18 continuously input fresh air, so that the space between the furnace shell 4 and the inner tank 6 and the space between the base 1 and the grate 2, that is, the upper air chamber 10, the lower air chamber 15 and the bottom air chamber 16 Both are filled with positive-pressure fresh air, and the positive-pressure fresh air enters the main combustion zone 12 through the air hole 11, which overcomes the defect of insufficient oxygen supply, makes the coal burn hotly, and the flame passes through the coal from top to bottom. The reduced oxide layer is burned, and the radiant heat generated during the combustion makes the fresh coal seams above the main combustion zone 12 distilled and dried, and the volatiles produced are fully burned by the hot flame when passing through the main combustion zone 12, which overcomes the problem of smoking. defects, the white flame is violently ejected from the flame hole 3 for use in furnaces, kilns, and stoves. On the other hand, the radiant heat preheats the fresh air in each air chamber 10, 15, and 16 to improve the combustion efficiency. temperature.

同样，如采用高烟囱或引风机(图中未画出)产生抽力，亦可获得以上燃烧效果，亦可使喷火孔3猛烈地喷出白色火焰、实现正压供空气一样的目的，此外，当采用负压进新鲜空气时，原煤燃烧器可取消外壳4和上气室10、下气室15，此时各通气孔11的一端就直接与大气层相通，新鲜空气直接从大气层经各通气孔11进入主燃烧区12、克服供氧不足的缺陷，使煤炽热地燃烧，也实现正压供空气一样的目的。Similarly, if a high chimney or induced draft fan (not shown) is used to generate draft, the above combustion effects can also be obtained, and the flame hole 3 can be violently ejected into white flames to achieve the same purpose of positive pressure air supply. In addition, when adopting negative pressure to enter fresh air, the raw coal burner can cancel the shell 4, the upper air chamber 10, and the lower air chamber 15. At this time, one end of each ventilation hole 11 is directly communicated with the atmosphere, and the fresh air directly passes through the atmosphere from the atmosphere. The ventilation hole 11 enters the main combustion zone 12, overcomes the defect of insufficient oxygen supply, makes the coal burn hotly, and also realizes the same purpose of positive pressure air supply.

Claims

1. A raw coal burner mainly composed of base (1), cast iron grate (2), shell (4), liner (6), coal hopper (7), upper cover (8), etc., its main features are :

a. The space between the outer shell (4) and the inner tank (6) forms the main air chamber (A). The main air chamber (A) can be integrated or divided into several, and the air inlet pipe (B) is installed on it. The space between the base (1) and the fire grate (2) is a base air chamber (16), on which an air inlet pipe (18) is housed;

b. Corresponding to the position of the main combustion zone (12), there are several ventilation holes (11) around the inner tank (6), one end of each ventilation hole (11) communicates with the main air chamber (A) respectively, and the other end is leading to the main combustion zone (12);

c, the outer side of the housing (4) is provided with several observation holes (13) coaxial with the air holes (11),

d. The other outer side of the casing (4), corresponding to the position above the ash layer on the fire grate (2), has a fire hole (3), one end of the fire hole (3) leads to the inner chamber, and the other One end stretches out of the shell (4),

E, liner (6) can be made into water jacket form.

2. The raw coal burner according to claim 1, its main feature is that one end of each ventilation hole (11) can directly communicate with the atmosphere.