CN216679385U

CN216679385U - Purging mechanism of furnace body protection pipe

Info

Publication number: CN216679385U
Application number: CN202122883712.0U
Authority: CN
Inventors: 霍李均; 翟国平; 吕张忠; 毛羲佳
Original assignee: Suzhou Botao Equipment Co ltd
Current assignee: Jiangsu Botao Intelligent Thermal Engineering Co ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-06-07
Anticipated expiration: 2031-11-23

Abstract

The utility model discloses a purging mechanism of a furnace body protection pipe, which comprises a plurality of purging pipe units and an air supply unit, wherein each purging unit comprises a plurality of purging pipes and a plurality of nozzles, each purging pipe is provided with the plurality of nozzles which are obliquely arranged relative to the protection pipe, and each nozzle can output purging airflow to the protection pipe; the air supply unit includes an air inlet pipe having an air inlet capable of communicating with a middle portion of each purge pipe to transmit an air flow inputted from the air inlet into the respective purge pipes, the middle portion of the air inlet pipe being provided with a shutoff plate adjusting a sectional area of the air inlet pipe such that an air flow rate of the purge pipe at a head end in an air supply direction is the same as an air flow rate of the purge pipe at a tail end. The utility model at least comprises the following advantages: by utilizing the inclined arrangement of the nozzles and the arrangement of the intercepting plate, the purging area can be increased under the condition of ensuring the consistent outlet air flow of the nozzles of each purging pipe.

Description

Purging mechanism of furnace body protection pipe

Technical Field

The utility model relates to the technical field of furnace body cleaning, in particular to a purging mechanism of a furnace body protection pipe.

Background

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

In the firing process, the electrode material generates a large amount of dust during the furnace sintering process due to its own characteristics and the characteristics of the process. The dust fall can accumulate on the protective tube in the furnace, in particular the protective tube located relatively below. Since the dust contains impurities such as grease, the dust is hardened due to long-term accumulation, and a series of problems such as cracking of the protection tube are caused.

It should be noted that the above description of the background art is provided for the sake of clarity and complete description of the technical solutions of the present invention, and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the utility model.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the embodiment of the utility model provides a purging mechanism of a furnace body protection pipe, which utilizes the inclined arrangement of a nozzle and the arrangement of a shutoff plate to increase the purging area under the condition of ensuring the consistent outlet gas flow of the nozzle of each purging pipe.

The embodiment of the application discloses: a blowing mechanism of a furnace body protection pipe comprises a plurality of blowing pipe units and an air supply unit,

the purging unit comprises a plurality of purging pipes and a plurality of nozzles, the purging pipes are arranged at intervals along a first direction, a plurality of nozzles which are obliquely arranged relative to the protection pipe are arranged on each purging pipe, and each purging pipe corresponds to the protection pipe so that the plurality of nozzles can output purging airflow to the protection pipe;

the air supply unit includes an air supply pipe having an air inlet capable of communicating with an intermediate portion of each of the purge pipes to transmit a flow of air input from the air inlet into the respective purge pipes, the intermediate portion of the air supply pipe being provided with a shutoff plate adjusting a sectional area of the air supply pipe such that an air flow rate of the purge pipe at a head end in an air supply direction is the same as an air flow rate of the purge pipe at a tail end.

Furthermore, the purging pipe is made of stainless steel materials, and the purging pipe can resist temperature of not less than 1400 ℃.

Furthermore, the cross section of the air inlet pipe is square, and the intercepting plate is arranged in the middle of the air inlet pipe in an inserting manner.

Further, the ratio of the cross-sectional area of the shutoff plate to the cross-sectional area of the inner cavity of the air inlet pipe is between 0.40 and 0.45.

Furthermore, the number of the purging pipes is eight, and each purging pipe is connected with a frequency controller capable of outputting pulses through signals.

Further, the nozzle includes first nozzle and second nozzle, have a plurality of stations on the purge tube, every station department corresponds is provided with first nozzle, first nozzle orientation the protection tube sets up and is the splayed.

Furthermore, still be provided with a plurality of orientation on the purge tube the furnace body lateral wall the second nozzle, every the second nozzle is the duckbilled, every the second nozzle with the purge tube can dismantle the setting.

Furthermore, one purging pipe is arranged between the two protection pipes, and the purging pipes are arranged on the outer sides of the protection pipes at the head end and the tail end along the air flow direction.

By means of the technical scheme, the utility model has the following beneficial effects: the corresponding arrangement of the purging pipe and the protection pipe and the inclined arrangement of the nozzle of the purging pipe are utilized, so that the purging process can be carried out on the protection pipe, and meanwhile, the gas flow is guided by the protection pipe, and the purging area is increased; it is worth noting that the intercepting plate is arranged in the air inlet pipe, and the flow velocity of the air flow in the sweeping pipe at the head end is the same as that of the air flow in the sweeping pipe at the tail end in a mode of reducing the air flow passing area, and the intercepting plate and the sweeping pipe are sufficient, so that the better stability of the sweeping air flow output by each protection pipe is guaranteed, and the sweeping efficiency is also improved.

In order to make the aforementioned and other objects, features and advantages of the utility model comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall apparatus structure in an embodiment of the present invention;

FIG. 2 is a schematic diagram of the overall device structure from another perspective in an embodiment of the present invention;

fig. 3 is a partial structural diagram in the embodiment of the present invention.

Reference numerals of the above figures: 1. a purge tube; 2. protecting the tube; 3. an air inlet pipe; 4. a shutoff plate; 5. a first nozzle; 6. a second nozzle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, in the description of the present invention, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is considered as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Referring to fig. 1 to 3, the embodiment discloses a purging mechanism of a furnace protection pipe 2, which comprises a plurality of purging pipe 1 units and a gas supply unit,

the purging unit comprises a plurality of purging pipes 1 and a plurality of nozzles, the purging pipes 1 are arranged at intervals along a first direction, a plurality of nozzles which are obliquely arranged relative to the protection pipe 2 are arranged on each purging pipe 1, and each purging pipe 1 is respectively arranged corresponding to the protection pipe 2 so that the plurality of nozzles can output purging airflow to the protection pipe 2;

the air supply unit includes an air supply pipe 3 having an air inlet, the air supply pipe 3 being capable of communicating with an intermediate portion of each of the purge pipes 1 to transmit a flow of air inputted from the air inlet into the respective purge pipes 1, the intermediate portion of the air supply pipe 3 being provided with a shutoff plate 4 adjusting a sectional area of the air supply pipe 3 such that an air flow rate of the purge pipe 1 at a head end in an air supply direction is the same as an air flow rate of the purge pipe 1 at a tail end.

In the above arrangement, by arranging the purge tube 1 and the protection tube 2 correspondingly and arranging the nozzle of the purge tube 1 obliquely, the purge process can be performed on the protection tube 2, and the purge area can be increased by guiding the gas flow by the protection tube 2; it is worth noting that by arranging the intercepting plate 4 in the air inlet pipe 3, the flow velocity of the air flow in the purging pipe 1 at the head end is the same as that of the air flow in the purging pipe 1 at the tail end in a mode of reducing the air flow passing area, and the flow velocities are sufficient, so that the output purging air flow of each protection pipe 2 is ensured to have better stability, and the purging efficiency is also improved.

In this embodiment, the protection tubes 2 are spaced apart from each other in the vertical direction and extend in the horizontal direction, and eight protection tubes may be provided. Be provided with one between two protection tubes 2 and sweep pipe 1, be located head end and tail end along the air current direction the outside of protection tube 2 all is provided with one sweep pipe 1. The nozzle includes first nozzle 5 and second nozzle 6, have a plurality of stations on the purge tube 1, every station department corresponds to be provided with first nozzle 5, first nozzle 5 orientation protection tube 2 sets up and is the splayed. It should be noted that, in the above arrangement, one first nozzle 5 can act on two protection pipes 2, and the inclined arrangement is adopted, so that the output air flow acts on the protection pipes 2 and can be guided by the protection pipes 2, thereby ensuring the purging process and increasing the purging area.

In addition, still be provided with a plurality of orientations on the purge tube 1 the furnace body lateral wall the second nozzle 6, every the second nozzle 6 is the duckbilled form, every the second nozzle 6 with the purge tube 1 can dismantle the setting. The arrangement mode can raise the dust at the dead corner of the lower furnace wall so as to be convenient for collection.

Through foretell first nozzle 5 and 6 setting of second nozzle, can export enough stable air current and act on respectively on the wall of protection tube 2 and furnace body for the dust can effectively be swept and kicked up, and then is convenient for collect, also avoids because the dust accumulation is more, the production of unfavorable condition such as the protection tube 2 fragmentation that causes after appearing hardening. It is worth noting that each purging pipe 1 is connected with a frequency controller which can output pulses through signals. The control of the intermittent purging mode and other purging modes can be realized through the pulse control mode, and the purging frequency can be controlled, so that the intelligent control is realized.

In the embodiment, the purging pipe 1 is made of stainless steel materials, and the purging pipe can resist temperature of not less than 1400 ℃. The material is not limited, and different materials can be selected according to different temperatures and different materials. It is noted that the cross section of the purge tube 1 is square, and the shutoff plate 4 is arranged in the middle of the intake pipe 3 in a plug-in type. The ratio of the cross-sectional area of the cut-off plate 4 to the cross-sectional area of the inner cavity of the air inlet pipe 3 is 0.40-0.45. In one embodiment, the shutoff plate 4 is provided in two in number, one of which is provided at an inlet of the air intake duct 3 and the other of which is provided between the fourth protective tube 2 and the fifth protective tube 2, that is, at a middle position of the air intake duct 3. In the arrangement mode, the flow velocity of the air flow in the blowing pipe 1 at the head end is the same as that of the air flow in the blowing pipe 1 at the tail end in a mode of reducing the air flow passing area, and the air flow velocity is sufficient.

The principle and the implementation mode of the utility model are explained by applying specific embodiments in the utility model, and the description of the embodiments is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A purging mechanism of a furnace body protection pipe is characterized by comprising a plurality of purging units and air feeding units,

the air supply unit includes an air supply pipe having an air inlet capable of communicating with an intermediate portion of each of the purge pipes to transmit an air flow inputted from the air inlet into the respective purge pipes, the intermediate portion of the air supply pipe being provided with a shutoff plate adjusting a sectional area of the air supply pipe such that an air flow rate of the purge pipe at a head end in an air supply direction is the same as an air flow rate of the purge pipe at a tail end.

2. A purging mechanism for a furnace body protection tube according to claim 1, wherein the purging tube is made of stainless steel and is temperature resistant to not less than 600 ℃.

3. A purging mechanism of a furnace body protection tube according to claim 1, wherein the cross section of the inlet tube is square, and the shutoff plate is provided at the middle of the inlet tube in a tab type.

4. A purging mechanism of a furnace body protection tube according to claim 3, wherein a ratio of a sectional area of the shutoff plate to a sectional area of an inner cavity of the inlet tube is between 0.40 and 0.45.

5. The purging mechanism of the furnace body protection pipe according to claim 1, wherein the number of the purging pipes is eight, and each purging pipe is connected with a frequency controller capable of outputting pulses through signals.

6. A purging mechanism for a furnace body protection tube according to claim 1, wherein the nozzle comprises a first nozzle and a second nozzle, the purging tube has a plurality of stations, the first nozzle is correspondingly disposed at each station, and the first nozzle is disposed toward the protection tube and has a shape of a Chinese character 'ba'.

7. A blowing mechanism of a furnace body protection pipe according to claim 6, wherein a plurality of second nozzles facing the side wall of the furnace body are further arranged on the blowing pipe, each second nozzle is in a duckbill shape, and each second nozzle is detachably arranged with the blowing pipe.

8. A purging mechanism for a furnace body protection pipe according to claim 1, wherein one purging pipe is provided between two protection pipes, and one purging pipe is provided outside each of the protection pipes at the head end and the tail end in the gas flow direction.