CN2616824Y - Energy-saving coal stove capable of discharging harmful gas containing fluorine and sulphur - Google Patents

Abstract

The utility model relates to an energy-saving coal stove which exhausts the harmful gases such as fluorine and sulfur comprising a furnace body, a fire cover, a furnace disk and a furnace cover. The utility model is characterized in that: the lateral wall of the furnace body is provided with a smoke vent or a plurality of smoke vents; an underground flue is communicated with the smoke vent; the other end of the smoke vent leads to outdoors; the amount of the smoke exhaust can be controlled by the open and close of the smoke gate. When the utility model is in use, more particularly when the coals just begin to burn or burn inadequately, a lot of dense smoke can be produced; under the conditions, the only thing to do is to open the smoke gate, so that the flue gas can pass through the smoke vent, along the underground flue, to outdoors; when the coals burn adequately, the smoke gate can decrease the amount of the smoke exhaust; the furnace temperature can be reduced, and the purpose of saving coals can be achieved. The utility model has the advantages of a simple structure, and the good effectiveness of preventing the harmful substances of the flue gas such as fluorine, arsenic and sulfur from polluting the living environment. According to controlling the size of the smoke vent, the furnace temperature can be controlled, and the purpose of saving coals can be achieved.

Description

Discharge the Energy-saving coal stove of pernicious gases such as fluorine, sulphur

Technical field the utility model relates to coal stove.

The background technology coal stove is the main heating appliances that present vast rural area, medium and small urban households cook, warm oneself.The kind of coal stove is a lot, and wherein a kind of coal stove that is called as " pit furnace " is widely used in Hanzhong, southern china and Shaanxi south, Ankang Prefecture.Pit furnace, one of its body of heater likeness in form does not have the washbowl at the bottom of the basin, during use, digs a melt pit on the ground in doors earlier, the hole wall is with reinforcings such as cement, then with furnace body frame on the hole, the edge of body of heater drops on the edge of melt pit.Coal is in hole when burning end, and flare rises on the hole by the body of heater lower end, people be sitting in the hole around, whole body all can obtain baking up and down, is wound with temperament and interest.Heat up water, when cooking, a garden shape opening part that only needs pot is put into the body of heater upper end gets final product.When banking up a fire, can put a foraminate fire lid in center at the opening part of body of heater lower end; When banking a fire, only need garden shape opening part, add that stone or metal plate for standing a stove on as a precaution against fire, a bell get final product in the body of heater upper end.The shortcoming of existing pit furnace is: during coal combustion, a large amount of flue gases are full of in stopping up, and harmful substances such as the fluorine that contains in the flue gas, arsenic, sulphur, carbon monoxide, carbon dioxide cause serious harm to human body.

The shortcoming that summary of the invention the utility model exists at existing pit furnace, propose following solution: the utility model mainly is made up of body of heater, Huo Gai, stone or metal plate for standing a stove on as a precaution against fire and bell, and the characteristics part is: one or more exhaust openings are arranged on the side wall of furnace; Open and close controlling with the cigarette door exhaust smoke level; A underground flue that communicates with exhaust opening is arranged, outside the other end pass-out of this underground flue is stopped up.During use, especially just taken fire or burn when insufficient at coal, can produce the dense smoke that contains hazardous substance in a large number, only needed this moment the cigarette door is opened, and sealed garden, the upper end shape mouth of body of heater with stone or metal plate for standing a stove on as a precaution against fire, bell, flue gas just can be by exhaust opening outside the underground flue discharge be stopped up; When coal combustion is abundant, the cigarette door can be turned and even closed down exhaust opening, thereby the control furnace temperature reaches the effect that is sparing in the use of coal.The utility model is simple in structure, has harmful substances such as preventing fluorine in the flue gas, arsenic, sulphur to pollute the good result of living environment, and by controlling the size or the exhaust smoke level of exhaust opening, can control furnace temperature, reaches the effect of economizing on coal.

Description of drawings

Fig. 1, a kind of single mouth pit furnace structural representation of rotary cigarette door gear;

Fig. 2 has the pit furnace structural representation of four exhaust openings;

Fig. 3, a kind of pit furnace structural representation of plug-in type cigarette door gear.

Among the figure, the 1st, melt pit, the 2nd, body of heater, the 3rd, the hole of fire lid is placed in the body of heater lower end, and the 4th, the hole of body of heater upper ends stone or metal plate for standing a stove on as a precaution against fire, bell, the 5th, exhaust opening, the 6th, cigarette door, the 7th, flue, the 8th, the projection of insertion exhaust opening on the cigarette door.

The specific embodiment is narrated two embodiment below in conjunction with accompanying drawing:

Embodiment 1, Figure 1 shows that the single exhaust opening pit furnace of rotary cigarette door.Body of heater, Huo Gai, stone or metal plate for standing a stove on as a precaution against fire, bell, Yan Men, underground flue all are ironcastings, the high 70mm of body of heater, and the diameter 220mm in its hole, garden, lower end 3, upper fire cover can be put in this hole, garden when banking up a fire; The diameter 280mm in hole, garden 4, upper end, stone or metal plate for standing a stove on as a precaution against fire, bell can be placed in this hole, garden; The wide 10mm in edge outside the body of heater upper end, this edge frame is on the edge of melt pit.An exhaust opening that stretches out 5 is arranged on the side wall of furnace, diameter 30mm, this exhaust opening and underground flue 7 join, and outside the other end of flue stretches out and stops up, a rotary dividing plate 6 that is equivalent to the cigarette door are arranged in the exhaust opening, in order to the flow of control cigarette.

Embodiment 2, Figure 2 shows that a pit furnace that four exhaust openings are arranged.Its structure difference from Example 1 is: four equidistant exhaust openings 5 are arranged on the sidewall of body of heater 2: around each mouthful diameter 30mm, the exhaust opening of body of heater is the space of a sealing, and this space communicates with flue 7.

Embodiment 3, Figure 3 shows that a kind of single exhaust opening pit furnace of portable cigarette door, be characterized in that cigarette door 6 is portable baffle plates, being movable with exhaust opening 5 fits, there is a projection 8 to insert in the exhaust opening on the cigarette door, finger promotes this projection about in the body of heater, just can make this cigarette door block or get out of the way exhaust opening.

Claims (2)

1. discharge the Energy-saving coal stove of pernicious gases such as fluorine, sulphur, mainly form by body of heater, Huo Gai, stone or metal plate for standing a stove on as a precaution against fire and bell, it is characterized in that: one or more exhaust openings (5) are arranged on the sidewall of body of heater (2), a flue (7) that communicates with exhaust opening (5) is arranged, the other end pass-out of this flue is outdoor, and cigarette door (6) is arranged on body of heater or the flue.

2. coal stove according to claim 1 is characterized in that: being located at the cigarette door (6) on the body of heater (2), can be rotary shield, also can be portable baffle plate.