CN219199145U - Induced air vertical coal-fired hot-air furnace - Google Patents

Abstract

The utility model discloses an induced air vertical coal-fired hot blast stove, which belongs to the technical field of coal-fired hot blast stoves and comprises a stove body and a storage tank arranged above the stove body, wherein a combustion chamber is formed from the top wall of the stove body to the inside of the stove body, a filler pipe communicated with the combustion chamber is fixedly welded on one side wall of the stove body, one end of the filler pipe close to the stove body is obliquely upwards arranged, one end of the filler pipe far away from the stove body is vertically arranged, a protruding block is welded on the outer wall of one end of the filler pipe far away from the stove body, a motor is welded on the side wall of the protruding block, an output shaft of the motor is coaxially connected with an inner support shaft, the inner support shaft is horizontally arranged in an inner cavity of the filler pipe, a plurality of crushing blades are coaxially sleeved on the outer wall of the inner support shaft, and two air inlet pipes are symmetrically welded on the outer wall of the stove body. The induced air vertical coal hot blast stove reduces the volume of crushed coal, thereby being beneficial to more complete combustion, reducing the probability of insufficient combustion and improving the utilization rate of coal.

Description

Induced air vertical coal-fired hot-air furnace

Technical Field

The utility model belongs to the technical field of coal-fired hot blast stoves, and particularly relates to an induced air vertical coal-fired hot blast stove.

Background

The coal-fired hot blast stove adopts the direct combustion of fuel, forms hot air through high purification treatment, and is directly contacted with materials for heating, drying or baking. The coal-fired hot blast stove is widely applied in China at the end of the 70 th century, and is a substitute product of an electric heat source and a traditional steam power heat source in a plurality of industries.

In carrying out the present utility model, the inventors have found that at least the following problems exist in this technology: when coal is added into the hot blast stove, most of the coal cannot be crushed, so that the added coal has larger volume and cannot be timely combusted, insufficient combustion phenomenon can be generated, and the utilization rate of the coal is reduced.

Therefore, we propose an induced air vertical coal hot blast stove to solve the above problems.

Disclosure of Invention

The utility model mainly aims to provide the induced air vertical coal hot blast stove, so that the volume of crushed coal is reduced, more complete combustion is facilitated, the probability of insufficient combustion is reduced, the utilization rate of coal is improved, and the problems in the background technology can be effectively solved.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a vertical coal-fired hot-blast furnace of induced air, includes the furnace body and places in the thing jar of putting of furnace body top, by furnace body roof is formed with the combustion chamber to its inside, one of them lateral wall fixed welding of furnace body has with the communicating filler pipe of combustion chamber, the one end slope that the filler pipe is close to the furnace body upwards sets up, keeps away from the vertical setting of one end of furnace body, the outer wall welding that the filler pipe kept away from furnace body one end has the bulge, just the welding has the motor on the bulge lateral wall, the output shaft coaxial coupling of motor has interior pivot, interior pivot level sets up in filling material pipe inner chamber, coaxial cover is equipped with a plurality of crushing blades on the interior pivot outer wall.

Preferably, two air inlet pipes are symmetrically welded on the outer wall of the furnace body, one end of each air inlet pipe, which is close to the furnace body, is horizontally arranged, and one end, which is far away from the furnace body, is obliquely downwards arranged; and the inner cavities of the two air inlet pipes are communicated with the combustion chamber.

Preferably, the two air inlet pipes are respectively provided with an air blower at the inner part of one end far away from the furnace body; both blowers need to be electrically connected with an external power supply, so that the blowers can work normally.

Preferably, one end of each of the two air inlet pipes, which is close to the furnace body, is provided with a slot, and a wind shield is horizontally inserted into each of the two slots; one end of each wind shield extends out of the inner cavities of the two air inlet pipes and is connected with a handle, and the air inlet quantity per unit time in the inner cavities of the air inlet pipes can be adjusted by adjusting the depth of the wind shields inserted into the inner cavities of the air inlet pipes, so that the aim of freely adjusting firepower is fulfilled.

Preferably, a vent is formed in one side, facing away from the filling pipe, of the outer wall of the furnace body, a grid plate is welded in the vent, and three supporting feet are fixedly welded on the bottom wall of the furnace body; the grating plate is used for discharging heat in the combustion chamber and combusted gas to the external environment, the arranged grating plate plays a role in preventing external foreign matters from entering the combustion chamber, and the three supporting feet are distributed in a circumferential array along the vertical axis of the furnace body.

Preferably, a feed inlet is welded at the center of the top wall of the storage tank, and the bottom end of the storage tank enters the furnace body and is arranged right above the combustion chamber; the material to be heated can be added into the storage tank through the feed inlet.

In summary, the technical effects and advantages of the present utility model are:

according to the induced air vertical coal-fired hot blast stove, the inner support shaft and the crushing blades are driven to operate under the operation action of the motor, so that coal added from the filler pipe can be automatically crushed, the crushed coal is reduced in volume, more complete combustion is facilitated, the probability of insufficient combustion is reduced, and the utilization rate of the coal is improved;

according to the induced air vertical coal-fired hot blast stove, the positions of the two wind shields can be adjusted respectively by manually pulling the two handles, so that the sizes of the openings of the inner cavities of the two ventilation pipes are adjusted accordingly, the air inlet quantity in unit time is adjusted, and the aim of freely adjusting firepower is fulfilled.

Drawings

FIG. 1 is a schematic view of a structure of one side of the present utility model;

FIG. 2 is a schematic view of another embodiment of the present utility model;

FIG. 3 is a top view of the present utility model;

FIG. 4 is an enlarged view of the structure of FIG. 3A in accordance with the present utility model;

fig. 5 is a cross-sectional view of a portion of the structure of fig. 1 taken along B-B in accordance with the present utility model.

In the figure: 1. a furnace body; 2. a storage tank; 3. a filling pipe; 4. a protruding block; 5. a motor; 6. an inner support shaft; 7. a crushing blade; 8. an air inlet pipe; 9. a blower; 10. a wind deflector; 11. a handle; 12. a grating plate; 13. supporting feet; 14. a combustion chamber.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-5, an induced draft vertical coal hot blast stove comprises a stove body 1 and a storage tank 2 arranged above the stove body 1, wherein the coal hot blast stove is vertical, a feed inlet is welded at the center of the top wall of the storage tank 2, the bottom end of the storage tank 2 enters the stove body 1 and is arranged right above a combustion chamber 14, a material to be heated can be added into the storage tank 2 through the feed inlet, the combustion chamber 14 is formed from the top wall of the stove body 1 to the inside of the storage tank, the internal space of the combustion chamber 14 is used for combusting the material, a filler pipe 3 communicated with the combustion chamber 14 is fixedly welded on one side wall of the stove body 1, one end of the filler pipe 3 close to the stove body 1 is obliquely upwards arranged, one end far away from the stove body 1 is vertically arranged, a convex block 4 is welded on the outer wall of one end of the filler pipe 3 far away from the stove body 1, a motor 5 is welded on the side wall of the convex block 4, an output shaft of the motor 5 is coaxially connected with an inner support shaft 6, the inner support shaft 6 is horizontally arranged in the inner cavity of the filler pipe 3, two ends of the inner support shaft 6 are both rotationally connected with the filler pipe 3, and a plurality of crushing blades 7 distributed in a horizontal direction are coaxially sleeved on the outer wall of the inner support shaft 6;

two air inlet pipes 8 are symmetrically welded on the outer wall of the furnace body 1, one end of each air inlet pipe 8, which is close to the furnace body 1, is horizontally arranged, one end, which is far away from the furnace body 1, of each air inlet pipe 8 is obliquely downwards arranged, the inner cavities of the two air inlet pipes 8 are all communicated with a combustion chamber 14, one end, which is far away from the furnace body 1, of each air inlet pipe 8 is internally provided with an air blower 9, the two air blowers 9 are all required to be electrically connected with an external power supply, so that the two air blowers can normally work, one end, which is close to the furnace body 1, of each air inlet pipe 8 is provided with a slot, the two slots are internally provided with air shields 10 in a horizontal manner, one end of each air shield 10 extends out of the inner cavities of the two air inlet pipes 8 respectively and is connected with a lifting handle 11, the air inlet quantity per unit time in the inner cavities of the air inlet pipes 8 is adjustable, the aim of freely adjusting the firepower is fulfilled, one side, which is far away from the filler pipe 3, of the outer wall of the furnace body 1 is provided with a grid plate 12, the air vent is welded in the vent, the bottom wall of the furnace body 1 is fixedly welded with three supporting feet 13, the grid plate 12 are used for discharging heat in the combustion chamber 14 and the combusted air to the grid plate 12 to the outside the combustion chamber, and the grid plate is arranged to the grid plate 13, and the outside is arranged along the vertical support the circumference of the grid plate 13, and the external air source is arranged along the circumference of the vertical array, and the vertical air inlet 13, and the outside the air inlet is prevented.

Working principle: firstly, a material (such as water) to be heated is added into an inner cavity of a storage tank 2 through a feed inlet at the top of the storage tank, a driving motor 5 is electrified to operate to drive an inner support shaft 6 and a plurality of crushing blades 7 to operate at a high speed, the coal is added into the inner cavity of a filling pipe 3 and can be crushed by the plurality of crushing blades 7, the crushed coal enters a combustion chamber 14, after the coal is added, the motor 5 stops operating, a pilot material (such as the coal in a combustion state) is added into the filling pipe 3, finally, the pilot material enters the combustion chamber 14 to be mixed with the unlit coal, the fire coal can be gradually ignited, then two air blowers 9 are electrified to operate, external air is continuously fed into the combustion chamber 14 through two air inlet pipes 8, the air is directly blown into the coal, and the coal can be combusted, and the material in the inner cavity of the storage tank 2 is heated; in this process, if the fire intensity of the coal combustion needs to be adjusted, the two handles 11 can be held by hand and the two wind shields 10 can be pulled, the positions of the two wind shields 10 in the inner cavities of the two air inlet pipes 8 can be adjusted, so as to adjust the air inlet amount in unit time, achieve the purpose of freely adjusting the fire intensity, and the heat generated during combustion and the gas after combustion are discharged to the external environment through the ventilation openings, and finally the material in the storage tank 2 is heated to a required state.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides a vertical coal-fired hot-blast furnace of induced air, includes furnace body (1) and places in putting thing jar (2) of furnace body (1) top, a serial communication port, by furnace body (1) roof is to its inside combustion chamber (14) that is formed with, furnace body (1) one of them lateral wall fixed welding has with combustion chamber (14) communicating filler pipe (3), filler pipe (3) are close to the one end slope of furnace body (1) and upwards set up, keep away from the vertical setting of one end of furnace body (1), the outer wall welding that furnace body (1) one end was kept away from to filler pipe (3) has protruding piece (4), just welding has motor (5) on protruding piece (4) lateral wall, the output shaft coaxial coupling of motor (5) has interior pivot (6), interior pivot (6) level sets up in filling material pipe (3) inner chamber, coaxial cover is equipped with a plurality of crushing blade (7) on the outer wall of interior pivot (6).

2. The induced air vertical coal-fired hot blast stove according to claim 1, characterized in that two air inlet pipes (8) are symmetrically welded on the outer wall of the stove body (1), one end of the air inlet pipe (8) close to the stove body (1) is horizontally arranged, and one end far away from the stove body (1) is obliquely downwards arranged.

3. An induced draft vertical coal burning hot blast stove as claimed in claim 2, characterized in that the two air inlet pipes (8) are provided with a blower (9) at the inner part of one end far away from the stove body (1).

4. A vertical coal-fired hot blast stove according to claim 3, characterized in that two air inlet pipes (8) are provided with a slot at one end close to the stove body (1), and a wind shield (10) is horizontally inserted in each slot.

5. The induced air vertical coal-fired hot blast stove according to claim 1, characterized in that a vent is formed on one side of the outer wall of the stove body (1) back to the filler pipe (3), a grid plate (12) is welded in the vent, and three supporting feet (13) are fixedly welded on the bottom wall of the stove body (1).

6. The induced air vertical coal-fired hot blast stove according to claim 1, wherein a feed inlet is welded at the center of the top wall of the storage tank (2), and the bottom end of the storage tank (2) enters the stove body (1) and is arranged right above the combustion chamber (14).

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