CN2795681Y - Dead load type seal furnace door of shaped coal boiler - Google Patents

Abstract

The utility model relates to a dead load type seal furnace door of a shaped coal boiler, which comprises a furnace door opening, a furnace door and a furnace door axle. The improvement is that the furnace door opening protrudes from a furnace body wall through a side wall, and the upper side wall of the furnace door opening is provided with an axle seat which is provided with a rotatable axle. A supporting arm of the furnace door on which the suspended furnace door is fixed on the rotatable axle. When the furnace door is in a closing state, the horizontal distance between the axle seat and the furnace body wall is smaller than the horizontal distance between the gravity center of the furnace door and the furnace body wall. The furnace door opening is inlaid with a sealing strip which is made of flexible material and is provided with a groove, and the furnace door is provided with a batten corresponding to the groove of the sealing strip. The utility model has the advantages of labor saving when the furnace door is opened or closed. The force moment formed by the gravity center and the supporting point of the furnace door makes the furnace door always have a force towards the furnace door. With the function of the sealing strip which is inlaid on the furnace door opening and is in convex-concave fit with the furnace door, the furnace door is windtight after closed, and the heat loss in a furnace chamber is avoided.

Description

Molded coal boiler dead weight formula sealing door

Technical field

The utility model relates to the parts of coal-burning boiler.

Background technology

The coal feed point of existing molded coal boiler, slag notch all are provided with plane baffle-type fire door.And most fire doors are by the direct open and close of fireman.The also useful motor drive mechanism control of boiler relatively large or that automation is higher fire door.But the structure of fire door in the past, exist with the open and close operation of the connected mode of body of heater and fire door and to expend muscle power or electric energy, be not closed completely, cold air bleeds, and reduces fire box temperature, shortcomings such as influence burning.

Summary of the invention

The purpose of this utility model provides a kind of molded coal boiler dead weight formula sealing door, in order to overcoming the above-mentioned shortcoming of existing Boiler door,

The utility model comprises stove gate, fire door, fire door axle, the improvement of being done is that stove gate passes through the outstanding furnace body wall of its sidewall, on the upper side wall of stove gate, axle bed is arranged, rotating axle is arranged on the axle bed, fixing fire door support arm on the axle, fixing suspension type fire door on the fire door support arm, when fire door is in closed condition, the horizontal range of axle bed and furnace body wall less than the fire door center of gravity with apart from the horizontal range of furnace body wall, stud with the flexible material sealing strip of band groove on the stove gate, the raised line of corresponding sealing strip groove is arranged on the fire door.

Good effect of the present utility model is that the open and close fire door is laborsaving, and the moment that the fire door center of gravity and the strong point form makes fire door that the power that relies on fire door be arranged all the time, add and be set on the stove gate, and the effect of protruding with fire door, the recessed sealing strip that cooperates, after closing, fire door do not leak out, avoid the heat loss in the burner hearth.

Description of drawings

Fig. 1 is the front elevation after the utility model door and the doorway combination;

Fig. 2 is the utility model side view;

Fig. 3 is the utility model stove gate edge sectional view;

Fig. 4 is the utility model stove gate front elevation;

Fig. 5 is the utility model fire door right view;

Fig. 6 is the utility model fire door rearview.

The specific embodiment

In the furnace body wall 1 upper furnace door mouth position of common molded coal boiler is connected, outer surface is a steel plate, fill out refractory concrete between steel plate as the stove gate sidewall, form the rectangle stove gate 2 of the long 710mm of vertical edge, the relative vertical plane in the plane of stove gate 2 turns forward 14 °, the sidewall of stove gate top stretches out furnace body wall 240mm, stove gate sidewall end face have outer narrow in wide sealing strip mounting groove 3, the heat resistant rubber sealing strip 4 of mounting strap groove in the groove, welding axle bed 5 on the sidewall above the stove gate, axle bed is apart from furnace body wall 100mm, the heat resistance concrete fire door 6 that angle frame and surface steel sheet are arranged by stove gate size and existing craftwork manufacture, fire door thickness 50mm, the fire door inboard have with stove gate on the square steel raised line 7 that is meshed of sealing strip 4, connect fire door 6 and fire door axles 9 with turning shape support arm 8, the fire door axle is installed on the axle bed.Below promptly finish enforcement of the present utility model.

Claims (1)

1, molded coal boiler dead weight formula sealing door, comprise stove gate (2), fire door (6), fire door axle (9), it is characterized in that: stove gate (2) is by the outstanding furnace body wall of its sidewall, axle bed (5) is arranged on the upper side wall of stove gate, rotating fire door axle (9) is arranged on the axle bed, fixing fire door support arm (8) on the axle, fixing suspension type fire door (6) on the fire door support arm, when fire door is in closed condition, the horizontal range of axle bed and furnace body wall is less than the horizontal range of fire door center of gravity and furnace body wall, stud with the flexible material sealing strip (4) of band groove on the stove gate, the raised line (7) of corresponding sealing strip groove is arranged on the fire door.

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