CN217465351U

CN217465351U - Atmosphere stove exhaust control structure

Info

Publication number: CN217465351U
Application number: CN202220708702.5U
Authority: CN
Inventors: 钟伟刚; 陈仙宝; 陈祖建
Original assignee: Wuhan Fangu Ceramic Material Co ltd
Current assignee: Wuhan Fangu Ceramic Material Co ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-09-20
Anticipated expiration: 2032-03-30

Abstract

The utility model provides an atmosphere stove exhaust control structure, include furnace and install in the exhaust pipe at furnace top, furnace is used for sintering ceramic material, the last pneumatic ball valve that is equipped with of exhaust pipe, be equipped with pressure sensor in the furnace, pressure sensor interlocks through the switch of external treater with pneumatic ball valve to the pressure value is 1.0 ~ 1.2KPa in the control furnace. The utility model discloses a through set up pneumatic ball valve on exhaust pipe to utilize opening and closing of the pneumatic ball valve of furnace internal pressure size real-time control, both guaranteed to form the disturbance air current in the furnace, make atmosphere evenly distributed in furnace, can make gaseous abundant participation reaction again, reduce gaseous unnecessary consume volume in the great degree, practice thrift the energy consumption, reduce the sintering cost.

Description

Atmosphere stove exhaust control structure

Technical Field

The utility model belongs to the technical field of the atmosphere stove, concretely relates to atmosphere stove exhaust control structure.

Background

In the use process of the atmosphere furnace, according to the requirements of different sinter, proper amount of different gases are introduced to form the required atmosphere, the gases introduced into the hearth are provided for the sinter to participate in the reaction, and a certain air inflow is required to maintain the dynamic balance of the gas in and out of the furnace, so that certain waste of the gases is caused.

Since the amount of gas used during the use cannot be reduced, it is necessary to design an atmosphere furnace exhaust control structure to minimize the amount of gas loss at the equipment side.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an atmosphere stove exhaust control structure can solve the partial defect that exists among the prior art at least.

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

the utility model provides an atmosphere stove exhaust control structure, includes furnace and installs in the exhaust pipe at furnace top, furnace is used for sintering ceramic material, the last pneumatic ball valve that is equipped with of exhaust pipe, be equipped with pressure sensor in the furnace, pressure sensor interlocks through the switch of external treater with pneumatic ball valve to control the furnace internal pressure value and be 1.0 ~ 1.2 KPa.

Furthermore, a manual exhaust ball valve is further arranged on the smoke exhaust pipeline and is positioned above the pneumatic ball valve.

Furthermore, a dial is arranged on the manual exhaust ball valve.

Further, the atmosphere furnace exhaust control structure further comprises a sewage discharge pipeline, and the sewage discharge pipeline is connected with the lowest point of the smoke discharge pipeline.

Furthermore, the sewage discharge pipeline is a straight pipe, one end of the sewage discharge pipeline is connected with the lowest point of the smoke discharge pipeline, and the other end of the sewage discharge pipeline is vertically arranged downwards.

Furthermore, a drain valve is arranged at the lower part of the drain pipeline.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model provides a this kind of atmosphere stove exhaust control structure is through setting up pneumatic ball valve on exhaust pipe to utilize opening and closing of the pneumatic ball valve of furnace internal pressure size real-time control, both guaranteed to form the disturbance air current in the furnace, make atmosphere evenly distributed in furnace, can make gaseous abundant participation reaction again, reduce gaseous unnecessary consume volume in the great degree, practice thrift the energy consumption, reduce the sintering cost.

(2) The utility model provides a this kind of atmosphere stove exhaust control structure sets up manual exhaust ball valve in the top of pneumatic ball valve, through the gaseous flow of the steerable exhaust pipe of the size that opens and shuts of manual exhaust ball valve to effective control furnace internal pressure rate of change.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic view of an atmosphere furnace exhaust control structure according to the present invention;

FIG. 2 is a schematic view of the exhaust control structure of the atmosphere furnace of the present invention;

FIG. 3 is a front view of the exhaust control structure of the atmosphere furnace of the present invention;

FIG. 4 is a side view of the atmosphere furnace exhaust control structure of the present invention;

FIG. 5 is an enlarged view of section I of FIG. 2;

FIG. 6 is an enlarged view of the portion M of FIG. 3;

fig. 7 is a flow chart of the pneumatic ball valve and hearth pressure interlock control in the atmosphere furnace exhaust control structure of the utility model.

Description of reference numerals: 1. a hearth; 2. a pneumatic ball valve; 3. a smoke exhaust duct; 4. a manual exhaust ball valve; 5. a pressure sensor; 6. a blowdown line; 7. a blowoff valve; 8. a dial.

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 efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those 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 referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 6, this embodiment provides an atmosphere furnace exhaust control structure, including furnace 1 and install in the exhaust pipe 3 at 1 top of furnace, furnace 1 is used for sintering ceramic material, be equipped with pneumatic ball valve 2 on the exhaust pipe 3, be equipped with pressure sensor 5 in the furnace 1, pressure sensor 5 interlocks through the switch of external treater with pneumatic ball valve 2 to control the interior pressure value of furnace and be 1.0 ~ 1.2 KPa.

In the present embodiment, as shown in fig. 7, when the atmosphere furnace is operated, according to the requirement of the sinter, a proper amount of gas is introduced into the furnace chamber 1 of the atmosphere furnace to form a certain atmosphere, the pressure sensor 5 detects the pressure value in the furnace chamber 1 in real time, and the processor program sets the upper limit value and the lower limit value of the pressure in the furnace chamber 1, wherein the upper limit value is set to be 1.2KPa, and the lower limit value is set to be 1.0 KPa; the pressure sensor 5 detects the pressure value in the hearth 1 in real time, the detected value is transmitted to the processor, the set upper limit value and the set lower limit value are compared, when the pressure value in the hearth 1 detected by the pressure sensor 5 reaches the set upper limit value, the pneumatic ball valve 2 is controlled to be opened by a signal, and at the moment, the gas in the hearth 1 is discharged through the smoke exhaust pipeline 3; when the pressure value in the hearth 1 detected by the pressure sensor 5 reaches a set lower limit value, the pneumatic ball valve 2 is controlled to be closed by a signal, and at the moment, gas in the hearth 1 only cannot enter and cannot exit, so that the normal work in the hearth 1 is ensured. This kind of atmosphere stove exhaust control structure that this embodiment provided utilizes the pneumatic ball valve 2 of 1 internal pressure of furnace size real-time control pneumatic ball valve 2 of opening and closing through the pneumatic ball valve 2 that sets up on the exhaust pipe, has both guaranteed to form the disturbance air current in furnace 1, makes atmosphere evenly distributed in furnace 1, can make gaseous fully participate in the reaction again, reduces gaseous unnecessary consume volume in the great degree, practices thrift the energy consumption, reduces the sintering cost.

In an optimized implementation mode, as shown in fig. 6, a manual exhaust ball valve 4 is further arranged on the smoke exhaust pipeline 3, the manual exhaust ball valve 4 is positioned above the pneumatic ball valve 2, and the pressure change rate in the hearth 1 is controlled by adjusting the opening and closing size of the manual exhaust ball valve 4; furthermore, a dial 8 is arranged on the manual exhaust ball valve 4, and the opening and closing size of the manual exhaust ball valve 4 is accurately adjusted.

Because the impurity that the atmosphere stove in the use has tar produces, in order to avoid the exhaust in-process tar to spout or backward flow, influence the sintering effect of atmosphere stove, it is optimized, as shown in fig. 2, fig. 4 and fig. 5, can set up sewage pipes 6 on above-mentioned atmosphere stove exhaust control structure, sewage pipes 6 is connected with the minimum of exhaust pipe 3, and the impurity such as the tar that produces gathers in sewage pipes 6, after the operation of atmosphere stove work, discharges through sewage pipes 6 impurity such as this tar.

Optionally, the sewage discharge pipeline 6 is a straight pipe, one end of the straight pipe is connected with the lowest point of the smoke discharge pipeline 3, the other end of the straight pipe is vertically arranged downwards, and due to the structural arrangement form of the sewage discharge pipeline 6, generated impurities such as tar can be directly collected in the sewage discharge pipeline 6 by utilizing the self gravity, other power sources are not needed, and energy is saved. Further, in order to avoid the influence of the gas circulation of the sewage pipe 6 on the working process of the atmosphere furnace, as shown in fig. 5, a sewage valve 7 is arranged at the lower part of the sewage pipe 6, the sewage valve 7 is closed in the running process of the atmosphere furnace, and the generated impurities such as tar are gathered in the sewage pipe 6 and are not discharged, so that the length and the diameter of the sewage pipe 6 need to be correspondingly matched according to the size and the loading capacity of the hearth 1, and the sewage valve 7 is opened after the running of the atmosphere furnace is finished to treat the impurities such as tar gathered in the sewage pipe 6.

To sum up, the utility model provides a this kind of atmosphere stove exhaust control structure is through setting up pneumatic ball valve on exhaust pipe to utilize opening and closing of the pneumatic ball valve of furnace internal pressure size real-time control, both guaranteed can form the disturbance air current in the furnace, make atmosphere evenly distributed in furnace, can make gaseous abundant participation reaction again, reduce gaseous unnecessary consume volume in the great degree, practice thrift the energy consumption, reduce the sintering cost.

The above examples are merely illustrative of the present invention and do not limit the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.

Claims

1. An atmosphere furnace exhaust control structure, its characterized in that: including furnace and install in the exhaust pipe at furnace top, furnace is used for sintering ceramic material, the last pneumatic ball valve that is equipped with of exhaust pipe, be equipped with pressure sensor in the furnace, pressure sensor interlocks through the switch of external treater with pneumatic ball valve to control the furnace internal pressure value and be 1.0 ~ 1.2 KPa.

2. The atmosphere furnace exhaust gas control structure according to claim 1, wherein: and the smoke exhaust pipeline is also provided with a manual exhaust ball valve, and the manual exhaust ball valve is positioned above the pneumatic ball valve.

3. The atmosphere furnace exhaust gas control structure according to claim 2, wherein: and a dial is arranged on the manual exhaust ball valve.

4. The atmosphere furnace exhaust gas control structure according to claim 1, wherein: the smoke exhaust device further comprises a sewage discharge pipeline, and the sewage discharge pipeline is connected with the lowest point of the smoke exhaust pipeline.

5. The atmosphere furnace exhaust gas control structure according to claim 4, wherein: the sewage discharge pipeline is a straight pipe, one end of the sewage discharge pipeline is connected with the lowest point of the smoke discharge pipeline, and the other end of the sewage discharge pipeline is vertically arranged downwards.

6. The atmosphere furnace exhaust gas control structure according to claim 5, wherein: and a drain valve is arranged at the lower part of the drain pipeline.