CN211316946U

CN211316946U - Exhaust device for bell jar furnace

Info

Publication number: CN211316946U
Application number: CN201922458779.2U
Authority: CN
Inventors: 蒋光宇; 崔海波
Original assignee: Nanjing Paisaifeike Furnace Technology Co ltd
Current assignee: Nanjing Paisaifeike Furnace Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-21
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses an exhaust apparatus that bell jar furnace was used, including bell jar furnace body and exhaust box, the top of bell jar furnace body is provided with the heater, the top of heater is connected with the exhaust box through the air duct, be provided with non return structure and back flow on the air duct, the back flow is linked together with the exhaust box, one side of air duct is provided with the outlet duct, the inside of exhaust box is located and is provided with between air duct, outlet duct, the back flow and handles the case. An exhaust apparatus that bell jar stove was used, be provided with and handle the case, can reduce harmful gas and discharge and reduce exhaust gas's temperature from the bell jar stove through reaction box and cooling case in handling the case, it is comparatively convenient, be provided with the non return structure, can completely cut off the inside passageway of exhaust case and bell jar stove automatically through the non return structure, can also avoid gas reflux, it is more practical.

Description

Exhaust device for bell jar furnace

Technical Field

The utility model relates to a bell jar furnace field, in particular to exhaust apparatus that bell jar furnace was used.

Background

The bell jar furnace and the lifting furnace are generally used for industrial production and pilot test, generally have larger power and larger power consumption, have good energy-saving effect and low energy consumption for industrial enterprises, save electricity and time and are beneficial to improving the yield, and the main characteristic of the sintering kiln provided by the bell jar furnace is high efficiency. The intelligent control system and other equipment form a complete functional unit, the requirement of the ferrite industry on approximate art level can be fully met, gas in the bell jar furnace expands when a workpiece is sintered, and the gas needs to be discharged in time to ensure the sintering quality. However, the existing exhaust system has certain disadvantages that firstly, gas exhausted by the exhaust device is directly exhausted through the gas outlet pipe, the exhausted gas has certain heat and harmful gas, and the air can flow back to influence the quality of a workpiece after the gas is cooled or when the pressure of a bell jar furnace dad is reduced.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide an exhaust apparatus for bell jar stove can effectively solve the problem among the background art.

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

an exhaust device for a bell jar furnace comprises a bell jar furnace body and an exhaust box, wherein a heater is arranged above the bell jar furnace body, the exhaust box is connected above the heater through an air guide pipe, a non-return structure and a return pipe are arranged on the air guide pipe, the return pipe is communicated with the exhaust box, an air outlet pipe is arranged on one side of the air guide pipe, and a treatment box is arranged in the exhaust box and positioned among the air guide pipe, the air outlet pipe and the return pipe.

Preferably, the treatment box comprises a reaction box, a first water pipe, a second water pipe, a third water pipe, a baffle and a cooling box, the reaction box and the cooling box are arranged between the air guide pipe, the air outlet pipe and the return pipe, the reaction box and the cooling box are connected through the second water pipe, the first water pipe is arranged inside the reaction box, the air outlet pipe and the second water pipe of the reaction box are located at the bottom end of the reaction box, the third water pipe is arranged inside the cooling box, the baffle and the third water pipe are arranged between the air guide pipe, the second water pipe and the return pipe inside the cooling box, and the air guide pipe, the second water pipe and the return pipe of the cooling box are located at the upper end of the cooling box.

Preferably, the non-return structure comprises a fixed block, a retaining plate, an air vent, a telescopic spring and a movable block, the fixed block is connected with an air guide pipe and a return pipe, the retaining plate is arranged inside the fixed block, the air vent is formed in the retaining plate, the movable block is arranged inside the fixed block and positioned on one side of the retaining plate, the movable block is connected with the retaining plate through the telescopic spring, and the movable block moves along the inside of the fixed block.

Preferably, a feeding port is formed in the bell-jar furnace body, and a pressure gauge is arranged above the heater.

Preferably, the gas guide pipe penetrates through the heater and is communicated with the interior of the bell jar furnace body.

Preferably, the air duct is provided with a control valve.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, be provided with the processing case, can reduce harmful gas and discharge and reduce exhaust gas's temperature from the bell jar stove through reaction box and cooling case in the processing case, it is comparatively convenient, be provided with the non return structure, can completely cut off the passageway of exhaust box and bell jar stove inside automatically through the non return structure, can also avoid gas reflux, it is more practical.

Drawings

FIG. 1 is a schematic view of a bell jar furnace body of an exhaust apparatus for a bell jar furnace according to the present invention;

FIG. 2 is a schematic view of an exhaust box of an exhaust device for a bell jar furnace according to the present invention;

FIG. 3 is a schematic view of a treatment chamber of an exhaust apparatus for a bell jar furnace according to the present invention;

fig. 4 is an enlarged view of fig. 2 at a.

In the figure: 1. a bell jar furnace body; 2. a feeding port; 3. a pressure gauge; 4. an exhaust box; 5. a heater; 6. an air duct; 7. an air outlet pipe; 8. a treatment tank; 801. a reaction box; 802. a first water delivery pipe; 803. a second water delivery pipe; 804. a third water delivery pipe; 805. a baffle plate; 806. a cooling box; 9. a non-return structure; 901. a fixed block; 902. a holding plate; 903. a vent hole; 904. a tension spring; 905. a moving block; 10. a return pipe; 11. and (4) controlling the valve.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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 "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, an exhaust device for a bell jar furnace comprises a bell jar furnace body 1 and an exhaust box 4, wherein a heater 5 is arranged above the bell jar furnace body 1, the exhaust box 4 is connected above the heater 5 through an air duct 6, a check structure 9 and a return pipe 10 are arranged on the air duct 6, the return pipe 10 is communicated with the exhaust box 4, an air outlet pipe 7 is arranged on one side of the air duct 6, and a treatment box 8 is arranged in the exhaust box 4 and positioned among the air duct 6, the air outlet pipe 7 and the return pipe 10;

the treatment box 8 comprises a reaction box 801, a first water pipe 802, a second water pipe 803, a third water pipe 804, a baffle 805 and a cooling box 806, wherein the reaction box 801 and the cooling box 806 are arranged between the air guide pipe 6, the air outlet pipe 7 and the return pipe 10, the reaction box 801 and the cooling box 806 are connected through the second water pipe 803, the first water pipe 802 is arranged inside the reaction box 801, the air outlet pipe 7 and the second water pipe 803 of the reaction box 801 are positioned at the bottom end of the reaction box 801, the third water pipe 804 is arranged inside the cooling box 806, the baffle 805 and the third water pipe 804 are arranged inside the cooling box 806 and positioned between the air guide pipe 6, the second water pipe 803 and the return pipe 10, and the air guide pipe 6, the second water pipe 803 and the return pipe 10 of the cooling box 806 are positioned at the upper end of the cooling box 806; the non-return structure 9 comprises a fixed block 901, a retaining plate 902, an air vent 903, an extension spring 904 and a moving block 905, wherein the fixed block 901 is connected with an air duct 6 and a return pipe 10, the retaining plate 902 is arranged inside the fixed block 901, the air vent 903 is arranged on the retaining plate 902, the moving block 905 is arranged inside the fixed block 901 and positioned on one side of the retaining plate 902, the moving block 905 is connected with the retaining plate 902 through the extension spring 904, and the moving block 905 moves along the inside of the fixed block 901; a feeding port 2 is arranged on the bell-jar furnace body 1, and a pressure gauge 3 is arranged above the heater 5; the gas-guide tube 6 penetrates through the heater 5 and is communicated with the inside of the bell jar furnace body 1; the air duct 6 is provided with a control valve 11.

It should be noted that, the utility model relates to an exhaust device for bell jar furnace, the article to be sintered is put into the bell jar furnace body 1 from the material inlet 2, then the bell jar furnace is operated, so that the heater 5 heats the article in the bell jar furnace body 1 to be sintered, during the period, the pressure of the gas inside the bell jar furnace body 1 is known through the pressure gauge 3, when the pressure is higher, the control valve 11 on the air duct 6 is opened, at the moment, the gas can enter the processing box 8 of the exhaust box 4 through the air duct 6, the high-pressure gas inside during the period can push the moving block 905 in the fixed block 901 to move, and enter the cooling box 806 through the vent hole 903 on the holding plate 902, at the moment, the gas can be cooled by the cold water in the moving block 905 to remove dust, and the gas can enter the water through the baffle 805 to increase the contact area of the gas at the bottom end, the gas enters the reaction box 801 through the second water pipe 803, some harmful substance to in the reaction box 801 react, then discharge through outlet duct 7, the gas that becomes when bell jar furnace body 1 inside is few or pressure reduces, gas or the liquid in the exhaust box 4 that will get into in the exhaust box 4 can adsorb the air duct 6 this moment, can avoid the condition of gas less or the less backward flow of pressure through non return structure 9 this moment, make the movable block 905 block up bell jar furnace body 1 under the spring action of the expanding spring 904 on the holding plate 902 that flows back, and the gas or the liquid of backward flow return to in handling box 8 through back flow pipe 10, avoid the gas backward flow, it is comparatively practical, after the use through first raceway 802 and third raceway 804 with the water in reaction box 801 and cooling box 806 discharge can.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An exhaust apparatus for a bell jar furnace, characterized in that: the bell jar furnace comprises a bell jar furnace body (1) and an exhaust box (4), wherein a heater (5) is arranged above the bell jar furnace body (1), the exhaust box (4) is connected above the heater (5) through an air duct (6), a check structure (9) and a return pipe (10) are arranged on the air duct (6), the return pipe (10) is communicated with the exhaust box (4), an air outlet pipe (7) is arranged on one side of the air duct (6), and a treatment box (8) is arranged between the air duct (6), the air outlet pipe (7) and the return pipe (10) in the exhaust box (4).

2. The exhaust apparatus for a bell jar furnace according to claim 1, wherein: the treatment box (8) comprises a reaction box (801), a first water pipe (802), a second water pipe (803), a third water pipe (804), a baffle plate (805) and a cooling box (806), the reaction box (801) and the cooling box (806) are arranged among the air guide pipe (6), the air outlet pipe (7) and the return pipe (10), the reaction box (801) is connected with the cooling box (806) through the second water pipe (803), the first water pipe (802) is arranged inside the reaction box (801), the air outlet pipe (7) and the second water pipe (803) of the reaction box (801) are positioned at the bottom end of the reaction box (801), the third water pipe (804) is arranged inside the cooling box (806), the baffle plate (805) and the third water pipe (804) are arranged inside the cooling box (806) and between the air guide pipe (6), the second water pipe (803) and the return pipe (10), and the air duct (6), the second water delivery pipe (803) and the return pipe (10) of the cooling box (806) are positioned at the upper end of the cooling box (806).

3. The exhaust apparatus for a bell jar furnace according to claim 1, wherein: the non-return structure (9) comprises a fixed block (901), a retaining plate (902), a vent hole (903), an expansion spring (904) and a moving block (905), wherein the fixed block (901) is connected with an air guide pipe (6) and a return pipe (10), the retaining plate (902) is arranged inside the fixed block (901), the vent hole (903) is formed in the retaining plate (902), the moving block (905) is arranged on one side, located on the retaining plate (902), inside the fixed block (901), the moving block (905) is connected with the retaining plate (902) through the expansion spring (904), and the moving block (905) moves along the inside of the fixed block (901).

4. The exhaust apparatus for a bell jar furnace according to claim 1, wherein: the bell-jar furnace is characterized in that a feeding port (2) is formed in the bell-jar furnace body (1), and a pressure gauge (3) is arranged above the heater (5).

5. The exhaust apparatus for a bell jar furnace according to claim 1, wherein: the gas guide pipe (6) penetrates through the heater (5) and is communicated with the interior of the bell jar furnace body (1).

6. The exhaust apparatus for a bell jar furnace according to claim 1, wherein: the air duct (6) is provided with a control valve (11).