CN204612435U

CN204612435U - A kind of pipe free hot-blast stove

Info

Publication number: CN204612435U
Application number: CN201520119961.4U
Authority: CN
Inventors: 宫贞君; 张家驹; 孙贺
Original assignee: HUAIYUAN JULONG MACHINERY MANUFACTURING Co Ltd
Current assignee: HUAIYUAN JULONG MACHINERY MANUFACTURING Co Ltd
Priority date: 2015-02-28
Filing date: 2015-02-28
Publication date: 2015-09-02
Anticipated expiration: 2025-02-28

Abstract

The utility model discloses a kind of pipe free hot-blast stove, comprise: combustion bin, metal grill, coal-filling hole, except cinder notch, smoke exhaust pipe, blast pipe, cold blower, ventilation duct, fin, discharge pipe, the position of coal-filling hole is on the top of metal grill, except the position of cinder notch is in the bottom of metal grill, smoke exhaust pipe is welded on the top of combustion bin, cold blower is connected with blast pipe by flexible pipe, the left end of ventilation duct is connected with the right-hand member of blast pipe by the mode of welding, ventilation duct adopts " W " type design, fin spiral welded is on the inner peripheral surface of ventilation duct, discharge pipe is welded on combustion bin, the left end of discharge pipe is connected with the right-hand member of ventilation duct by the mode of welding.The utility model has the advantages such as heating effect is good.

Description

A kind of pipe free hot-blast stove

Technical field

The utility model relates to a kind of pipe free hot-blast stove, is applied to drying machinery field.

Background technology

Because hot blast can improve heat utilization efficiency and hot working effect as medium and carrier, therefore hot-blast stove obtains general application, wherein pipe free hot-blast stove because of structure simple, low cost and other advantages Application comparison is extensive, but, ventilation duct in existing pipe free hot-blast stove is only a hollow linear pipe, cold air enters in ventilation duct, flame in body of heater and hot blast heat to make the cold air in ventilation duct become hot-air to ventilation duct, but, contact area due to cold air and ventilation duct is only the area of the inner peripheral surface of ventilation duct, therefore contact area is less, heat transfer effect is also just poor, and due to the design of ventilation duct employing linear pattern, cold air rests in ventilation duct also just shorter by the time of heating, therefore heating effect is poor, cold air increasing extent of temperature is also just not high enough.

Utility model content

For solving the defect of prior art, the utility model discloses the pipe free hot-blast stove that a kind of structure is simple, heat exchange efficiency is high.

The utility model discloses a kind of pipe free hot-blast stove, comprise: combustion bin, metal grill, coal-filling hole, except cinder notch, smoke exhaust pipe, blast pipe, cold blower, ventilation duct, fin, discharge pipe, the inner horizontal of described combustion bin welds a metal grill, described coal-filling hole is welded on the top of combustion bin, and the position of coal-filling hole is on the top of metal grill, described removes the bottom that cinder notch is welded on combustion bin, and except the position of cinder notch is in the bottom of metal grill, described smoke exhaust pipe is welded on the top of combustion bin, described blast pipe is welded on combustion bin, described cold blower is connected with blast pipe by flexible pipe, described ventilation duct is welded on combustion bin inside, the left end of described ventilation duct is connected with the right-hand member of blast pipe by the mode of welding, described ventilation duct adopts " W " type design, described fin spiral welded is on the inner peripheral surface of ventilation duct, described discharge pipe is welded on combustion bin, the left end of described discharge pipe is connected with the right-hand member of ventilation duct by the mode of welding.

Owing to adopting technique scheme, the utility model has following advantageous benefits:

1, structure is simple;

2, heating effect is good.

Accompanying drawing explanation

Fig. 1 is the profile of a kind of pipe free hot-blast stove of the utility model.

Wherein: 1-combustion bin; 2-metal grill; 3-coal-filling hole; 4-is except cinder notch; 5-smoke exhaust pipe; 6-blast pipe; 7-cold blower; 8-ventilation duct; 9-fin; 10-discharge pipe.

Detailed description of the invention

As shown in Figure 1, the utility model discloses a kind of pipe free hot-blast stove, comprise: combustion bin 1, metal grill 2, coal-filling hole 3, except cinder notch 4, smoke exhaust pipe 5, blast pipe 6, cold blower 7, ventilation duct 8, fin 9, discharge pipe 10, the inner horizontal of described combustion bin 1 welds a metal grill 2, described coal-filling hole 3 is welded on the top of combustion bin 1, and the position of coal-filling hole 3 is on the top of metal grill 2, described removes the bottom that cinder notch 4 is welded on combustion bin 1, and except the position of cinder notch 4 is in the bottom of metal grill 2, described smoke exhaust pipe 5 is welded on the top of combustion bin 1, described blast pipe 6 is welded on combustion bin 1, described cold blower 7 is connected with blast pipe 6 by flexible pipe, it is inner that described ventilation duct 8 is welded on combustion bin 1, the left end of described ventilation duct 8 is connected with the right-hand member of blast pipe 6 by the mode of welding, described ventilation duct 8 adopts " W " type design, described fin 9 spiral welded is on the inner peripheral surface of ventilation duct 8, described discharge pipe 10 is welded on combustion bin 1, the left end of described discharge pipe 10 is connected with the right-hand member of ventilation duct 8 by the mode of welding.

Combustion bin 1, metal grill 2, coal-filling hole 3, except cinder notch 4, smoke exhaust pipe 5, blast pipe 6, cold blower 7, ventilation duct 8, fin 9, discharge pipe 10

The utility model implements like this: to be joined by coal cinder on the metal grill 2 in combustion bin 1 by coal-filling hole 3, light with fire, cold wind blasts in ventilation duct 8 by blast pipe 6 by cold blower 2, flame in combustion bin 1 and hot blast heat ventilation duct 8, ventilation duct 8 by heat conduction to air, air in such ventilation duct 8 is then hot blast, hot blast is discharged through discharge pipe 10, because fin 9 spiral welded is on the inner peripheral surface of ventilation duct 8, like this while ventilation duct 8 is heated, fin 9 is also heated, air in such ventilation duct 8 both can contact with the inner peripheral surface of ventilation duct 8, also can contact with fin 9, contact area increases, heat exchange area also just increases thereupon, heat transfer effect also just improves, air is also just relatively good by the effect heated, in addition because ventilation duct 8 adopts " W " type design, the time that air rests in ventilation duct 8 is just long, air was also just extended by the time of heating thereupon, the effect of air heat is also just relatively good, thus avoid the defect that in ventilation duct 8, air elevation amplitude is large not.

Last it is noted that above embodiment only in order to illustrate the utility model and and technical scheme described by unrestricted the utility model; Therefore, although this description has been described in detail the utility model with reference to each above-mentioned embodiment, those of ordinary skill in the art should be appreciated that and still can modify to the utility model or equivalent replacement; And all do not depart from technical scheme and the improvement thereof of spirit and scope of the present utility model, it all should be encompassed in right of the present utility model.

Claims

1. a pipe free hot-blast stove, comprise: combustion bin, metal grill, coal-filling hole, except cinder notch, smoke exhaust pipe, blast pipe, cold blower, ventilation duct, fin, discharge pipe, the inner horizontal of described combustion bin welds a metal grill, described coal-filling hole is welded on the top of combustion bin, and the position of coal-filling hole is on the top of metal grill, described removes the bottom that cinder notch is welded on combustion bin, and except the position of cinder notch is in the bottom of metal grill, described smoke exhaust pipe is welded on the top of combustion bin, described blast pipe is welded on combustion bin, described cold blower is connected with blast pipe by flexible pipe, described discharge pipe is welded on combustion bin, it is characterized in that: described ventilation duct is welded on combustion bin inside, the left end of described ventilation duct is connected with the right-hand member of blast pipe by the mode of welding, described ventilation duct adopts " W " type design, described fin spiral welded is on the inner peripheral surface of ventilation duct, the left end of described discharge pipe is connected with the right-hand member of ventilation duct by the mode of welding.