CN214792567U

CN214792567U - Furnace gas circulating device of roasting furnace for precision casting

Info

Publication number: CN214792567U
Application number: CN202120210991.1U
Authority: CN
Inventors: 颜学中
Original assignee: Xiangtan Santai Machinery Manufacturing Co ltd
Current assignee: Xiangtan Santai Machinery Manufacturing Co ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-11-19
Anticipated expiration: 2031-01-26

Abstract

The utility model discloses a roasting furnace gas circulating device for precision casting, which comprises a bin body, wherein a storage bin is arranged inside the bin body, a breather pipe A is wound outside the storage bin, and a gas injection pipe is arranged at the top of one side of one end of the bin body and is connected with the gas inlet of the breather pipe A; the utility model discloses a surround pipe A, connecting pipe A, surround pipe B, under breather pipe A's the cooperation, can utilize the heat in the burner gas, when the burner gas enters into by connecting pipe B and encircles inside pipe A, under the effect of surrounding pipe A, can improve the time that the burner gas dwelled, then with leading-in the inside water of storage storehouse of heat in the burner gas in, then can enter into the inside of surrounding pipe B of connecting pipe A, circulate in surrounding pipe B, at last by discharging, the time that the increase that just so can be great stops, the heat maximize in the messenger burner gas is utilized.

Description

Furnace gas circulating device of roasting furnace for precision casting

Technical Field

The utility model relates to a bake burning furnace technical field over a slow fire, specifically be a precision casting is with baking burning furnace burner gas circulating device over a slow fire.

Background

The roasting is a physical and chemical change reaction process carried out after solid materials are heated at high temperature under the condition of no melting, the chemical properties and the physical composition of the materials are changed for further treatment, in order to further utilize the heat in the furnace gas, in the roasting furnace, in order to ensure the uniformity of the furnace gas of the roasting furnace, a circulation mode of a furnace top double-suction fan is adopted, the wind direction in the furnace is from top to bottom in the circulation mode, and the wind passes through a mesh belt and is sucked from suction ports at two sides of the double-suction fan by a wind channel at the side of the furnace;

the prior device has the following defects:

when the roasting furnace is used, fresh air needs to be introduced into the roasting furnace all the time, and meanwhile, in order to ensure the temperature in the furnace, the fresh air needs to be introduced only by heating, but the discharged furnace gas also has a large amount of heat which cannot be utilized, so that the utilization efficiency of energy is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a precision casting is with burning furnace burner gas circulating device over a slow fire to the fresh air that need ventilate all the time to its inside when using is baked over a slow fire in the suggestion to solve above-mentioned background art, simultaneously in order to guarantee the temperature in the stove, fresh air still will heat and just can let in, but those exhaust burner gas still have a large amount of heats, can not these heats the problem of the utilization efficiency of the energy that reduces.

In order to achieve the above object, the utility model provides a following technical scheme: a roasting furnace gas circulating device for precision casting comprises a bin body, wherein a storage bin is arranged inside the bin body, a vent pipe A is wound on the outer side of the storage bin, a gas injection pipe is arranged at the top of one side of one end of the bin body and is connected with the gas inlet of the vent pipe A, the gas outlet of the vent pipe A extends to the bottom of the bin body, an encircling pipe A is arranged at one side inside the storage bin, the gas inlet of the encircling pipe A extends to the top of the bin body and is provided with a connecting pipe B, an encircling pipe B is arranged at one side of the bin body, which is far away from the encircling pipe A, a connecting pipe A is arranged between the gas inlet of the encircling pipe B and the gas outlet of the encircling pipe A, the gas outlet of the encircling pipe B extends to one side of the bin body, a vent pipe B is arranged at the top of the storage bin body, and the top of the vent pipe B extends to the outside of the bin body, the gas outlet of breather pipe B is provided with the drainage storehouse, the inside drainage subassembly that is provided with of drainage storehouse, the top of gas injection pipe is provided with the check valve.

Preferably, the drainage subassembly comprises breather plate, drainage layer, income cistern and outlet pipe, it is located the inside bottom in drainage storehouse to go into the cistern, the inside bottom in income cistern is provided with the drainage layer, the outside on drainage layer is provided with the drainage layer, the bottom of going into cistern one side is provided with the outlet pipe, one side of outlet pipe extends to the outside in drainage storehouse, the bottom in drainage storehouse and the top of check valve with link to each other.

Preferably, the inner side of the bin body is provided with heat preservation cotton.

Preferably, the water filtration layer is made of an EPTFE fabric.

Preferably, one side of the outer side of the water outlet pipe is provided with a protective cover.

Preferably, the outer side of the vent pipe B is provided with a heat insulation sleeve.

Preferably, the middle of the top of the storage bin is provided with a water injection pipe, and the top of the water injection pipe extends to the outside of the bin body and is provided with a cover plate.

Compared with the prior art, the beneficial effects of the utility model are that: the furnace gas circulating device of the roasting furnace for precision casting;

the heat in the furnace gas can be utilized through the cooperation of the surrounding pipe A, the connecting pipe A, the surrounding pipe B and the vent pipe A, when the furnace gas enters the surrounding pipe A from the connecting pipe B, the residence time of the furnace gas can be prolonged under the action of the surrounding pipe A, then the heat in the furnace gas is guided into the water in the storage bin, then the furnace gas enters the surrounding pipe B through the connecting pipe A, circulates in the surrounding pipe B and is finally discharged, so that the residence time of the furnace gas can be greatly prolonged, the heat in the furnace gas is utilized to the maximum extent, when the temperature of the water in the storage bin is increased, the temperature is conducted to the vent pipe A, when fresh air is introduced into the vent pipe A, the fresh air is subjected to heat exchange with cold air, the heat of the air is increased, and the air can be directly introduced into the roasting furnace without heating, the water in the storage bin can boil when absorbing heat to a certain degree by matching the vent pipe B, the one-way valve, the vent plate, the water filtering layer, the liquid inlet groove and the water outlet pipe, hot water vapor is generated and enters the water filtering bin through the vent pipe B, and water molecules of the water vapor can be blocked by the water filtering layer under the action of the water filtering layer so as to slide into the liquid inlet groove, but hot gas can enter the gas injection pipe through the water filtering layer and the vent plate, and gas can be effectively prevented from flowing back into the water filtering bin when the gas injection pipe injects air under the action of the one-way valve;

drawings

Fig. 1 is a front sectional view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a top cross-sectional view of the present invention;

fig. 4 is a front sectional view of the water filtering bin of the present invention.

In the figure: 1. a bin body; 2. surrounding tube A; 3. a breather pipe A; 4. surrounding tube B; 5. a storage bin; 6. a breather pipe B; 7. a connecting pipe A; 8. a connecting pipe B; 9. a water filtering bin; 10. a one-way valve; 11. a gas injection pipe; 12. a breather plate; 13. filtering a water layer; 14. entering a liquid tank; 15. and (5) discharging a water pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: a roasting furnace gas circulating device for precision casting comprises a cabin body 1, a storage cabin 5 is arranged inside the cabin body 1, a vent pipe A3 is arranged around the outer side of the storage cabin 5, a gas injection pipe 11 is arranged at the top of one side of one end of the cabin body 1, the gas injection pipe 11 is connected with a gas inlet of the vent pipe A3, a gas outlet of the vent pipe A3 extends to the bottom of the cabin body 1, a surrounding pipe A2 is arranged at one side inside the storage cabin 5, a gas inlet of the surrounding pipe A2 extends to the top of the cabin body 1 and is provided with a connecting pipe B8, a surrounding pipe B4 is arranged at one side of the cabin body 1 far away from the surrounding pipe A2, a connecting pipe A7 is arranged between the gas inlet of the surrounding pipe B4 and the gas outlet of the surrounding pipe A2, a gas outlet of the surrounding pipe B4 extends to one side of the cabin body 1, a B6 is arranged at the top of the storage cabin body 5, a top of the vent pipe B6 extends to the outside of the vent pipe 1, a water filtering cabin B6 is provided with a water filtering cabin 9, the inside water filtering component that is provided with of water filtering storehouse 9, the top of gas injection pipe 11 is provided with check valve 10.

The check valve 10 in the device is the prior art, and the composition structure and the connection mode are completely the same as those of the prior device.

Further, the drainage subassembly is by breather plate 12, drainage layer 13, go into cistern 14 and outlet pipe 15 and constitute, it is located the inside bottom in filtered water storehouse 9 to go into cistern 14, the inside bottom in income cistern 14 is provided with filtration layer 13, the outside of filtration layer 13 is provided with filtration layer 13, the bottom of going into cistern 14 one side is provided with outlet pipe 15, one side of outlet pipe 15 extends to the outside in filtered water storehouse 9, the bottom in filtered water storehouse 9 and the top of check valve 10 with link to each other, can effectually filter out with the hydrone in the vapor.

Furthermore, the inner side of the bin body 1 is provided with heat insulation cotton, so that the heat dissipation speed is reduced.

Further, the drainage layer 13 is made of an EPTFE fabric, and can block water molecules.

Furthermore, a protective cover is arranged on one side of the outer side of the water outlet pipe 15, so that water can be drained conveniently.

Furthermore, the outer side of the vent pipe B6 is provided with a heat insulation sleeve to reduce heat loss.

Further, the middle of the top of the storage bin 5 is provided with a water injection pipe, and the top of the water injection pipe extends to the outside of the bin body 1 and is provided with a cover plate, so that water can be conveniently added.

The working principle is as follows: when furnace gas enters the surrounding pipe A2 through the connecting pipe B8, the residence time of the furnace gas can be prolonged under the action of the surrounding pipe A2, heat in the furnace gas is then guided into water in the storage bin 5 and then enters the surrounding pipe B4 through the connecting pipe A7 to circulate in the surrounding pipe B4 and finally be discharged, the temperature of the water in the storage bin 5 can be slowly increased, when the temperature of the water in the storage bin 5 is increased, the temperature is conducted to the vent pipe A3, when fresh air is introduced into the vent pipe A3, heat exchange is carried out with cold air, the heat of the air is increased, when the water in the storage bin 5 absorbs the heat to a certain degree, hot water vapor is generated, the water vapor enters the interior of the water filtering vent pipe bin 9 through the B6, and under the action of the water filtering layer 13, water molecules of the water vapor can be blocked by the water filtering layer 13, therefore, the gas can slide into the liquid inlet tank 14, but hot gas can enter the gas injection pipe 11 through the water filtering layer 13 and the vent plate 12, the protective cover on the water outlet pipe 15 is opened, water in the liquid inlet tank 14 can be discharged, and meanwhile, under the action of the one-way valve 10, gas can be effectively prevented from flowing back into the water filtering bin 9 when the gas injection pipe 11 injects air.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The utility model provides a precision casting is with burning furnace burner gas circulating device that bakes burning furnace, includes the storehouse body (1), its characterized in that: the bin comprises a bin body (1), wherein a storage bin (5) is arranged in the bin body (1), a vent pipe A (3) is arranged around the outer side of the storage bin (5), a gas injection pipe (11) is arranged at the top of one side of one end of the bin body (1), the gas injection pipe (11) is connected with a gas inlet of the vent pipe A (3), a gas outlet of the vent pipe A (3) extends to the bottom of the bin body (1), a surrounding pipe A (2) is arranged at one side of the inner part of the storage bin (5), a gas inlet of the surrounding pipe A (2) extends to the top of the bin body (1) and is provided with a connecting pipe B (8), a surrounding pipe B (4) is arranged at one side of the inner part of the bin body (1) far away from the surrounding pipe A (2), a connecting pipe A (7) is arranged between the gas inlet of the surrounding pipe B (4) and the gas outlet of the surrounding pipe A (2), and a gas outlet of the surrounding pipe B (4) extends to one side of the bin body (1), the top of storing storehouse (5) is provided with breather pipe B (6), the top of breather pipe B (6) extends to the outside of the storehouse body (1), the gas outlet of breather pipe B (6) is provided with water straining storehouse (9), the inside drainage subassembly that is provided with of water straining storehouse (9), the top of gas injection pipe (11) is provided with check valve (10).

2. The furnace gas circulating device of the roasting furnace for precision casting according to claim 1, characterized in that: the water filtering component is composed of an aeration plate (12), a water filtering layer (13), a liquid inlet groove (14) and a water outlet pipe (15), the liquid inlet groove (14) is located at the bottom of the inside of the water filtering bin (9), a water filtering layer (13) is arranged at the bottom of the inside of the liquid inlet groove (14), the water filtering layer (13) is arranged on the outer side of the water filtering layer (13), the water outlet pipe (15) is arranged at the bottom of one side of the liquid inlet groove (14), one side of the water outlet pipe (15) extends to the outside of the water filtering bin (9), and the bottom of the water filtering bin (9) is connected with the top of the one-way valve (10).

3. The furnace gas circulating device of the roasting furnace for precision casting according to claim 1, characterized in that: the inner side of the bin body (1) is provided with heat preservation cotton.

4. The furnace gas circulating device of the roasting furnace for precision casting according to claim 2, characterized in that: the water filtering layer (13) is made of EPTFE fabric.

5. The furnace gas circulating device of the roasting furnace for precision casting according to claim 2, characterized in that: and a protective cover is arranged on one side of the outer side of the water outlet pipe (15).

6. The furnace gas circulating device of the roasting furnace for precision casting according to claim 1, characterized in that: and a heat insulation sleeve is arranged on the outer side of the vent pipe B (6).

7. The furnace gas circulating device of the roasting furnace for precision casting according to claim 1, characterized in that: the middle of the top of the storage bin (5) is provided with a water injection pipe, and the top of the water injection pipe extends to the outside of the bin body (1) and is provided with a cover plate.