CN205227384U

CN205227384U - Split type pre -heater

Info

Publication number: CN205227384U
Application number: CN201521058028.7U
Authority: CN
Inventors: 江茂华
Original assignee: Chongqing Yinhao Aluminum Industry Co Ltd
Current assignee: Chongqing Yinhao Aluminum Industry Co Ltd
Priority date: 2015-12-18
Filing date: 2015-12-18
Publication date: 2016-05-11
Anticipated expiration: 2025-12-18

Abstract

The utility model relates to an aluminium is economizer for the melting furnace, specifically is a split type pre -heater, wherein: which comprises an outer pipe and an inner pipe, the body upper and lower parts of outer tube do not is provided with intake pipe and outlet duct, the inner chamber of intake pipe and outlet duct all with the inner chamber intercommunication of outer tube, the lower port of outer tube is connected with dust collecting device's top flange, the last port outer wall of inner tube is fixed with the installation ear, should install the ear and hug closely on the last port of outer tube, during the lower port of inner tube passes and stretches into dust collecting device's inner chamber behind the inner chamber of outer tube, forming between the outer wall of inner tube and the inner wall of outer tube and preheating the chamber, the upper and lower parts that should preheat the chamber do not be by installation ear and dust collecting device's top shutoff, preheat chamber and the inner chamber of intake pipe and the inner chamber intercommunication of outlet duct, the last blast pipe that is provided with of dust collecting device, the port outer wall of this blast pipe is fixed with ring flange III. The utility model discloses because structure and the advantage that has are: the energy consumption, the production of enterprise cost is reduced.

Description

Split type preheater

Technical field

The utility model relates to aluminium melting furnace energy saver, especially a kind of split type preheater.

Background technology

In aluminium Rolling Production process, first need aluminium raw material to be melted it by aluminium melting furnace.Existing aluminium melting furnace is in fusion process, most economical fuel adopts natural gas to burn in the furnace chamber of aluminium melting furnace, natural gas needs fully to mix with air between the furnace chamber entering aluminium melting furnace, realize energy-conservation object, but the air of air blast suction is all cold airs, enter in furnace chamber and will consume certain heat, this just makes the consumption of natural gas increase.Long-time numerical behavior, for the enterprise of aluminium Rolling Production, production cost is higher, and serious to gas consumption, energy consumption is large.

Summary of the invention

The purpose of this utility model is to provide a kind of split type preheater reducing energy consumption and reduce enterprise's production cost.

For achieving the above object and adopt technical scheme be such, i.e. a kind of split type preheater, wherein:

Comprise outer tube and interior pipe,

The upper and lower port outer wall punishment of described outer tube is fixed with ring flange I and ring flange II, and the body top and the bottom of outer tube are respectively arranged with air inlet pipe and escape pipe, the inner chamber of described air inlet pipe and escape pipe all with the inner space of outer tube; The lower port of described outer tube is connected with the top flange of dust collect plant;

The upper port outer wall of described interior pipe is fixed with mounting ear, this mounting ear is close in the upper port of outer tube, the lower port of interior pipe is through stretching in the inner chamber of dust collect plant after the inner chamber of outer tube, preheating cavity is formed between the outer wall of described interior pipe and the inwall of outer tube, the top and the bottom of this preheating cavity respectively by the top shutoff of mounting ear and dust collect plant, the inner chamber of described preheating cavity and air inlet pipe and the inner space of escape pipe;

Described dust collect plant is provided with blast pipe, and the port outer wall of this blast pipe is fixed with ring flange III.

The advantage that the utility model has due to said structure is: the aluminium raw material melting same weight can reduce the consumption of natural gas, reduce the production cost of enterprise.

Accompanying drawing explanation

The nonlimiting examples that the utility model can be provided by accompanying drawing further illustrates.

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the contour structures schematic diagram of pipe in the utility model.

Fig. 3 is the structure for amplifying schematic diagram at A place in Fig. 1.

Fig. 4 is the structure for amplifying schematic diagram at B place in Fig. 1.

In figure: 1, outer tube; 2, interior pipe; 3, ring flange I; 4, air inlet pipe; 5, escape pipe; 6, mounting ear; 7, dust collect plant; 8, ring flange II; 9, preheating cavity; 10, blast pipe; 11, ring flange III; 12, heat exchange fin; 13, sealing ring I; 14, sealing ring II; 15, heat-insulation layer; 16, ash hole; 17, block is loaded and unloaded.

Detailed description of the invention

Below in conjunction with drawings and Examples, the utility model is described in further detail:

See the split type preheater in accompanying drawing 1 to 4, figure, wherein:

Comprise outer tube 1 and interior pipe 2,

The upper and lower port outer wall punishment of described outer tube 1 is fixed with ring flange I 3 and ring flange II 8, and the body top and the bottom of outer tube 1 are respectively arranged with air inlet pipe 4 and escape pipe 5, the inner chamber of described air inlet pipe 4 and escape pipe 5 all with the inner space of outer tube 1; The lower port of described outer tube 1 is connected with the top flange of dust collect plant 7;

The upper port outer wall of described interior pipe 2 is fixed with mounting ear 6, this mounting ear 6 is close in the upper port of outer tube 1, the lower port of interior pipe 2 is through stretching in the inner chamber of dust collect plant 7 after the inner chamber of outer tube 1, preheating cavity 9 is formed between the outer wall of described interior pipe 2 and the inwall of outer tube 1, the top and the bottom of this preheating cavity 9 respectively by the top shutoff of mounting ear 6 and dust collect plant 7, described preheating cavity 9 and the inner chamber of air inlet pipe 4 and the inner space of escape pipe 5;

Described dust collect plant 7 is provided with blast pipe 10, and the port outer wall of this blast pipe 10 is fixed with ring flange III 11.In this embodiment, during use, connected by the high-temp waste gas blast pipe of pipeline by interior pipe and aluminium melting furnace, air inlet pipe 4 and escape pipe 5 respectively airflow pipe are connected.By to air heat, the mixed combustible gas body of entering in aluminium melting furnace itself has temperature, no longer consumption of calorie, and the aluminium natural gas that raw material use under fusing equivalent weight obviously declines, and reduces energy consumption, reduces the production cost of enterprise.And outer tube 1 and interior pipe 2 are split type, be convenient to safeguard, structure is simple, and low cost of manufacture, reduce further the production cost of enterprise.

For improving pre-heat effect, ensureing pre-thermal balance and hot gas is led, in above-described embodiment, preferably: the inwall of described interior pipe 2 is evenly equipped with some pieces of heat exchange fins 12.In this embodiment, heat exchange fin 12 is in a certain angle with the axis of interior pipe 2, and this angle is acute angle.

For ensureing sealing, in above-described embodiment, preferably: between the mounting ear 6 of described interior pipe 2 and the upper port of outer tube 1, be provided with sealing ring I 13.Sealing ring II 14 is provided with between the lower port of described outer tube 1 and the top of dust collect plant 7.

For ensureing pre-heat effect further, prevent preheating gas thermal losses, in above-described embodiment, preferably: the outer wall of described outer tube 1 is provided with heat-insulation layer 15.

For ensureing that dust is not by gas exhaust piping of leading the way, intermittent dust removal, in above-described embodiment, preferably: bottom the wall body of described dust collect plant 7, be provided with ash hole 16.In this embodiment, by closing gate under ash hole 16 normality, to ensure that waste gas is not revealed from this ash hole 16.

Workman's convenient operation during for making maintenance and loading and unloading, in above-described embodiment, preferably: described mounting ear 6 place is fixed with handling block 17.

Obviously, above-mentioned all embodiments are a part of embodiments of the present utility model, instead of whole embodiments.Based on embodiment described in the utility model, those skilled in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the category of the utility model protection.

In sum, due to said structure, reduce energy consumption, reduce the production cost of enterprise.

Claims

1. a split type preheater, is characterized in that:

Comprise outer tube (1) and interior pipe (2),

The upper and lower port outer wall punishment of described outer tube (1) is fixed with ring flange I (3) and ring flange II (8), the body top and the bottom of outer tube (1) are respectively arranged with air inlet pipe (4) and escape pipe (5), the inner chamber of described air inlet pipe (4) and escape pipe (5) all with the inner space of outer tube (1); The lower port of described outer tube (1) is connected with the top flange of dust collect plant (7);

The upper port outer wall of described interior pipe (2) is fixed with mounting ear (6), this mounting ear (6) is close in the upper port of outer tube (1), the lower port of interior pipe (2) is through stretching in the inner chamber of dust collect plant (7) after the inner chamber of outer tube (1), preheating cavity (9) is formed between the outer wall of described interior pipe (2) and the inwall of outer tube (1), the top and the bottom of this preheating cavity (9) respectively by the top shutoff of mounting ear (6) and dust collect plant (7), described preheating cavity (9) and the inner chamber of air inlet pipe (4) and the inner space of escape pipe (5);

Described dust collect plant (7) is provided with blast pipe (10), the port outer wall of this blast pipe (10) is fixed with ring flange III (11).

2. split type preheater according to claim 1, is characterized in that: the inwall of described interior pipe (2) is evenly equipped with some pieces of heat exchange fins (12).

3. split type preheater according to claim 1 and 2, is characterized in that: be provided with sealing ring I (13) between the mounting ear (6) of described interior pipe (2) and the upper port of outer tube (1).

4. split type preheater according to claim 1, is characterized in that: be provided with sealing ring II (14) between the lower port of described outer tube (1) and the top of dust collect plant (7).

5. the split type preheater according to claim 1 or 4, is characterized in that: the outer wall of described outer tube (1) is provided with heat-insulation layer (15).

6. split type preheater according to claim 1, is characterized in that: be provided with ash hole (16) bottom the wall body of described dust collect plant (7).

7. split type preheater according to claim 1, is characterized in that: described mounting ear (6) place is fixed with handling block (17).