CN216898338U

CN216898338U - Smelting furnace heat storage box with automatic stirring ash removal device

Info

Publication number: CN216898338U
Application number: CN202122538769.7U
Authority: CN
Inventors: 龚世波; 杨军龙; 朱枫; 杨冬; 张金文; 普建伟; 娄书瑞
Original assignee: Yunnan Yunlv Ruixin Aluminum Co Ltd
Current assignee: Yunnan Yunlv Ruixin Aluminum Co Ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-07-05
Anticipated expiration: 2031-10-21

Abstract

A smelting furnace heat storage box with an automatic stirring and ash removing device comprises a box body (1), a stirring mechanism (6) and a mesh screen (7) which are arranged in the box body; the box body comprises a box cover (8), a charging opening arranged on the box cover, a discharge opening and an ash cleaning opening arranged on the outer side of the box body, an air inlet (3) arranged on the front side and/or the rear side of the box body, and an air outlet (2) arranged on the inner side of the box body and with a downward air inlet; the mesh screen (7) is horizontally arranged at the middle lower part in the box body to divide the box body into an upper part and a lower part, and the stirring mechanism is arranged above the mesh screen. The dust cleaning device has a simple structure, is convenient to use and maintain, can stir and loosen the dust covering and blocking the heat storage balls to fall below the mesh screen through the stirring mechanism, and can clean the dust from the dust cleaning port, thereby greatly reducing the labor intensity of workers for cleaning dust and screening the heat storage balls and improving the production efficiency.

Description

Smelting furnace heat storage box with automatic stirring ash removal device

Technical Field

The utility model belongs to the technical field of aluminum alloy smelting and processing equipment, and particularly relates to a smelting heat storage box for metal smelting equipment.

Background

Smelting is the main step of producing aluminum alloy, the production process mainly adopts natural gas combustion heating to melt aluminum ingots, and the aluminum liquid temperature must be above 780 ℃ before the steps of proportioning, turning down, casting and the like can be carried out. The smelting furnace generally has 2-3 nozzles to burn in turn, in order to reduce the heat loss in the stove, improves the combustion efficiency of natural gas, reduction in production cost, and the heat accumulation case is the indispensable smelting auxiliary assembly. When smoke and dust in the furnace are pumped away through the heat storage box by the smoke exhaust fan, the dust in the furnace can be adsorbed on the surface of the heat storage balls in the heat storage box to cause blockage. In the prior art, the heat storage boxes mostly adopt heat storage balls which are manually cleaned and damaged by screening, the normal use temperature in the heat storage boxes is up to 650 ℃, when the heat storage balls are blocked, the spare heat storage boxes need to be manually replaced, the heat storage boxes are cleaned and screened and then wait for next replacement and use, the temperature of the heat storage boxes needs to be cooled for 2-3 days before the heat storage boxes are replaced to be normal temperature, the screening and cleaning operation can be performed at the moment, the problems that the working efficiency is low, the requirement for spare parts is large, the labor cost is high, the operation process is complex, the labor intensity of personnel is high and the like are solved, time and labor are wasted, the field safety production management is not facilitated, and the production efficiency is influenced. Therefore, a smelting heat storage box device capable of automatically cleaning ash is needed to realize continuous and efficient operation of the smelting process.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a smelting furnace heat storage box with an automatic stirring ash removal device, which is flexible to adjust and convenient to use and maintain.

The purpose of the utility model is realized by the following technical scheme:

a smelting furnace heat storage box with an automatic stirring and ash removing device comprises a box body, a stirring mechanism and a mesh screen, wherein the stirring mechanism and the mesh screen are arranged in the box body; the box body comprises a box cover, a charging opening which is arranged on the box cover and is provided with a cover plate, a discharging opening which is arranged on the outer side of the box body and is provided with a discharging door, an ash cleaning opening which is provided with an ash cleaning door, an air port which is arranged on the front side and/or the rear side of the box body, and an air pipe which is arranged on the inner side of the box body and has a downward air port; the mesh screen is horizontally arranged at the middle lower part in the box body to divide the box body into an upper part and a lower part, the stirring mechanism is arranged above the mesh screen, and comprises a horizontal rotating shaft, more than two groups of stirring teeth, a motor and a coupler, wherein the two ends of the horizontal rotating shaft are arranged on the box body, the more than two groups of stirring teeth are arranged on the rotating shaft at intervals along the length of the rotating shaft in a radial shape, the motor is arranged outside the box body, and the coupler is used for coupling the output shaft of the motor and the rotating shaft; the ash removal port is communicated with the lower part of the mesh screen in the box body.

The motor bracket is arranged outside the box body, and the motor is arranged on the motor bracket.

As a better mode, the utility model arranges two groups of stirring mechanisms in parallel in the box body, the stirring teeth of the two groups of stirring mechanisms are staggered, gears are respectively arranged on the same side of the rotating shafts of the two stirring mechanisms, the two gears are connected through a chain, and the motor is connected with one rotating shaft through a coupling.

Further, each stirring tooth of the stirring mechanism is connected to the rotating shaft through a bolt.

The dust cleaning device has a simple structure, is convenient to use and maintain, can stir and loosen the dust covering and blocking the heat storage balls to fall below the mesh screen through the stirring mechanism, and can clean the dust from the dust cleaning port, thereby greatly reducing the labor intensity of workers for cleaning dust and screening the heat storage balls and improving the production efficiency.

Drawings

FIG. 1 is a schematic view of the present invention;

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

FIG. 3 is a top view of the present invention;

FIG. 4-1 is a cross-sectional view of the first embodiment taken at section B-B of FIG. 2;

FIG. 4-2 is a cross-sectional view of the second embodiment taken at section B-B of FIG. 2;

FIG. 5 is a right side view of the present invention;

FIG. 6 is a cross-sectional view C-C of FIG. 4-1;

FIG. 7-1 is a cross-sectional view of the first embodiment taken along section A-A of FIG. 2;

FIG. 7-2 is a cross-sectional view of a second embodiment taken along section A-A of FIG. 2;

FIG. 8 is a sectional view taken along line G-G of FIG. 7-2;

FIG. 9-1 is a schematic view of a first state of the present invention in use in installation;

fig. 9-2 is a schematic view of a second state of the installation use of the present invention.

Detailed Description

The utility model is further illustrated by the following figures and examples.

As shown in fig. 1 to 8, the heat storage box of the smelting furnace with the automatic stirring and dust removing device comprises a box body 1, a stirring mechanism 6 and a mesh screen 7 which are arranged in the box body. The box includes case lid 8, set up the charge door that is equipped with apron 9 on the case lid, set up the drain hole that is equipped with discharge door 5 and the deashing mouth that is equipped with deashing door 4 in the box outside, set up in box front side or rear side or set up simultaneously in the wind gap 3 of box front and back both sides, set up in box inboard and the decurrent tuber pipe 2 in wind gap. The mesh screen 7 is horizontally arranged at the middle lower part in the box body to divide the box body into an upper part and a lower part, and the stirring mechanism 6 is arranged above the mesh screen. The stirring mechanism comprises a horizontal rotating shaft 6-6 with two ends arranged on the box body, more than two groups of stirring teeth 6-4 arranged at intervals along the length of the rotating shaft, a motor 6-2 arranged outside the box body, and a coupler 6-3 connecting an output shaft of the motor and the rotating shaft. Each group of stirring teeth are radially arranged on the rotating shaft around the rotating shaft, and the stirring teeth 6-4 are connected to the rotating shaft 6-6 one by bolts, so that the replacement is simple and convenient, only damaged stirring teeth can be replaced, and the maintenance cost is reduced. The ash removal port is communicated with the lower part of the mesh screen in the box body. A motor bracket 6-1 is arranged outside the box body, and the motor 6-2 is arranged on the motor bracket.

As a better embodiment, two groups of stirring mechanisms 6 are arranged in parallel in the box body, stirring teeth 6-4 of the two groups of stirring mechanisms are arranged in a staggered mode, gears are respectively arranged on the same sides of rotating shafts 6-6 of the two stirring mechanisms, the two gears are connected through chains 6-5, the motor 6-2 is connected with one rotating shaft through a coupler, and the two stirring mechanisms are driven to rotate simultaneously through one motor.

In use, as shown in fig. 9-1, two inventions are separately connected to a melting furnace 10. Connecting an air port 3 of a heat storage box A with a combustion-supporting air duct 12, and connecting the tail end of an air duct 2 with a first burner 11a of a smelting furnace; the end of the wind pipe 2 of the other heat storage box B is connected with a second burner 11B of the smelting furnace, and a tuyere is connected with a smoke exhaust pipe 13. And respectively opening the cover plates 9 of the heat storage boxes, and putting the heat storage balls into the box body through the feed inlet. The first valve 14 is closed, the second valve 15 is opened, combustion-supporting air fed from the combustion-supporting air pipe 12 enters from the air port 3 of the box body A, the air port of the heat storage box A is an air inlet at the moment, the first burner nozzle connected with the heat storage box A is firstly ignited, when the temperature in the smelting furnace rises, the heat storage balls in the box body absorb heat, redundant heat is prevented from being absorbed by exhaust air of the smelting furnace, when the air port is introduced into the combustion-supporting air, the heat stored in the heat storage balls is blown into the smelting furnace through the air pipe 2 of the heat storage box A, at the moment, the air pipe of the heat storage box A is an air outlet pipe, and the purpose of utilizing heat storage is achieved. In the process of storing heat, redundant dust can be generated in the gap of the heat storage ball, the excessive dust accumulation can directly influence the combustion-supporting air quantity of the air inlet, the natural gas combustion effect is influenced, and the heat storage effect of the heat storage ball is also influenced. When the heat storage ball is covered and blocked by dust, a motor of the heat storage box is started, the rotating shaft 6-6 rotates to drive the stirring teeth 6-4 in the box body to rotate, deposited dust is stirred, and the deposited dust becomes loose and is recycled to subsequent dust removal equipment from the dust exhaust air pipe 13 along with the wind power conveying direction. At this time, the air port 3 of the heat storage box B is an air outlet, and the air pipe 2 is an air inlet pipe.

When the first burner stops and the second burner is ignited, as shown in fig. 9-2, the first valve 14 is opened, the second valve 15 is closed, the original combustion-supporting air duct 12 becomes a dust exhaust duct, the original dust exhaust duct becomes a combustion-supporting air duct, the fed combustion-supporting air enters from the air opening 3 of the box body B, the air opening of the heat storage box B is an air inlet, and the second burner connected with the heat storage box B is ignited first. When the air port is introduced with combustion-supporting air, the heat stored by the heat storage ball is blown into the smelting furnace through the air pipe 2 of the heat storage box B, and at the moment, the air pipe of the heat storage box B is an air outlet pipe. When the heat storage ball is covered and blocked by dust, the motor of the heat storage box is started to drive the stirring teeth in the box body to rotate, deposited dust is stirred, and loosened dust is recovered from the dust exhaust air pipe to subsequent dust removal equipment along with the wind conveying direction. At this time, the air port 3 of the heat storage box A is an air outlet, and the air pipe 2 is an air inlet pipe.

The utility model has simple structure and convenient use and maintenance. The stirring device rotates, and the negative pressure that the dust remover produced inhales the dust collector pipeline with the dust, collects the dust and deposits in the dust collector, has avoided artifical loaded down with trivial details dismantlement sieve dress heat accumulation ball's operation, realizes automatic online deashing, has reduced intensity of labour, has improved work efficiency.

Claims

1. A smelting furnace heat storage box with an automatic stirring and ash removing device is characterized by comprising a box body (1), a stirring mechanism (6) and a mesh screen (7) which are arranged in the box body; the box body comprises a box cover (8), a feed inlet which is arranged on the box cover and is provided with a cover plate (9), a discharge port which is arranged on the outer side of the box body and is provided with a discharge door (5), an ash cleaning port which is provided with an ash cleaning door (4), an air port (3) which is arranged on the front side and/or the rear side of the box body, and an air pipe (2) which is arranged on the inner side of the box body and has a downward air port; the mesh screen (7) is horizontally arranged at the middle lower part in the box body to divide the box body into an upper part and a lower part, the stirring mechanism is arranged above the mesh screen and comprises a horizontal rotating shaft (6-6) with two ends arranged on the box body, more than two groups of stirring teeth (6-4) which are arranged on the rotating shaft in a radial shape and are arranged at intervals along the length of the rotating shaft, a motor (6-2) arranged outside the box body and a coupling (6-3) for connecting an output shaft of the motor and the rotating shaft; the ash removal port is communicated with the lower part of the mesh screen in the box body.

2. The smelting furnace regenerative box with the automatic stirring ash removal device according to claim 1, characterized in that a motor support (6-1) is arranged outside the box body, and the motor (6-2) is mounted on the motor support.

3. The smelting furnace heat storage box with the automatic stirring ash removal device according to claim 1 or 2, characterized in that two groups of stirring mechanisms (6) are arranged in parallel in the box body, stirring teeth (6-4) of the two groups of stirring mechanisms are arranged in a staggered manner, gears (6-7) are respectively arranged on the same side of rotating shafts (6-6) of the two stirring mechanisms, the two gears are connected through chains (6-5), and the motor (6-2) is connected with one rotating shaft through a coupling.

4. The melting furnace regenerator with automatic stirring ash removal device according to claim 1 or 2, wherein each stirring tooth (6-4) of the stirring mechanism is connected to the rotating shaft (6-6) by bolts.

5. A regenerator for a smelting furnace with an automatic ash stirrer according to claim 3, wherein each stirring tooth (6-4) of the stirring mechanism is bolted to the rotating shaft (6-6).