CN201212050Y

CN201212050Y - Size changing type heating furnace

Info

Publication number: CN201212050Y
Application number: CNU2008200994229U
Authority: CN
Inventors: 冯中堂; 龚华; 蒋波
Original assignee: CHONGQING CHANGJIANG INDUSTRIAL FURNACE MANUFACTURE CO LTD
Current assignee: CHONGQING CHANGJIANG INDUSTRIAL FURNACE MANUFACTURE CO LTD
Priority date: 2008-07-11
Filing date: 2008-07-11
Publication date: 2009-03-25
Anticipated expiration: 2018-07-11

Abstract

The utility model discloses a heating furnace of a variable capacity type, which comprises a furnace body and a hearth in the furnace body and is characterized in that a middle furnace door of a movable type is arranged in the hearth and divides the hearth into a left hearth segment and a right hearth segment. In the utility model, the middle furnace door is arranged in the hearth of the heating furnace of a variable capacity type, and the hearth is separated into two independent parts or three independent parts as required; according to the number of metal parts to be treated, parts of the hearths the number of which is matched with the number of the metal parts are selected, other parts of the hearths are separated, and only the needed parts of the hearths are heated to raise temperature so as to effectively save the energy, improve the energy utilization rate, shorten the heating time, and decrease the heat treatment cost of the metal parts. Theoretically, the hearth of the heating furnace of a variable capacity type is divided into two or three segments with different temperatures, and the divided two or three segments can respectively treat the metal parts with different temperature requirements so as to utilize the heating furnace to the maximum extent.

Description

A kind of variable displacement type process furnace

Technical field

The utility model relates to a kind of variable displacement type process furnace that metal parts is heat-treated.

Background technology

Process furnace is the device that metal parts is heat-treated, be widely used in the thermal treatment of metal partss such as alumiaum article (comprising Al-alloy parts), ironcasting, steel casting, its type of heating has electrically heated, combustion gas heating (comprising Sweet natural gas, coal gas etc.), coal heating etc., carry out heat temperature raising by burner hearth to the variable displacement type process furnace, make its temperature reach the thermal treatment temp of processing requirement, metal parts is heat-treated, improve the mechanical property of metal parts.Being called " continuous heating treating furnaces ", number of patent application as name is 02131483.7 the disclosed variable displacement type process furnace of patent of invention, and another name to be called " heat treatment furnace ", number of patent application be 03149360.2 the disclosed heat treated stove of patent of invention, pending metal parts is placed in the burner hearth of variable displacement type process furnace to handle.But, the variable displacement type process furnace of prior art, the volume of the burner hearth of its each variable displacement type process furnace all is a fixed, promptly after the manufacturing of variable displacement type process furnace finishes, the length of its burner hearth, width, highly all be fixed, the maximum of the metal parts that the direct decision of the volume of its burner hearth can be handled at every turn (designing treatment amount).Furnace volume just because of the variable displacement type process furnace is a fixed, all need when causing that burner hearth carried out heat temperature raising whole burner hearth even heating is heated up, no matter and what of pending metal parts quantity all require temperature in the burner hearth to reach the scope of setting; If certain requires the designing treatment amount of the metal parts quantity of processing less than this process furnace, even be far smaller than the designing treatment amount of process furnace, then have the severe energy waste phenomenon, improved the thermal treatment cost of metal parts.Skyrocket in energy prices, energy today of shortage gradually, ought to consider save energy, reduce the thermal treatment cost of metal parts.

Summary of the invention

The above-mentioned deficiency of severe energy waste phenomenon is fixed, existed to the utility model at the furnace volume of the process furnace of prior art when pending metal parts quantity is far smaller than the designing treatment amount of variable displacement type process furnace, a kind of simple in structure, variable displacement type process furnace that the burner hearth of process furnace can be divided into independently two sections or three sections when needing is provided.

The technical solution of the utility model: a kind of variable displacement type process furnace comprises body of heater, at the intravital burner hearth of stove; It is characterized in that: movable middle fire door is set in burner hearth, burner hearth is divided into burner hearth left side section and the right section of burner hearth.

Further feature is: mobile stove gate device is set is connected with middle fire door, fire door in the middle of moving with mobile stove gate device.

The position of middle fire door is arranged on 1/3 place of burner hearth length.

Variable displacement type process furnace of the present utility model with respect to prior art, has following characteristics:

1, middle fire door is set in the burner hearth of variable displacement type process furnace, when needing burner hearth is divided into independently two parts or three parts, according to what of pending metal parts quantity, the partial hearth that selection and metal parts quantity are complementary, and the burner hearth of other parts is kept apart, only the needs partial hearth is carried out heat temperature raising, effectively save energy improves efficiency of energy utilization, shortens heat-up time.

2, in save energy, enhance productivity in, also can reduce the thermal treatment cost of metal parts.

3, in theory, the burner hearth of variable displacement type process furnace is separated into two sections or three sections, temperature between every section can be different, just be separated two sections or three sections can be simultaneously respectively treatment temp require different metal parts, the variable displacement type process furnace can be maximally utilised.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is the utility model structural front view (analysing and observe);

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is fire door (part a 3) lifting structure synoptic diagram in the middle of the utility model.

Embodiment

In Fig. 1,2,1-body of heater, 2-burner hearth, 3-middle fire door, 4-burner hearth left side section, the right section of 5-burner hearth, 7-mobile stove gate device;

Variable displacement type process furnace of the present utility model comprises body of heater 1, forms burner hearth 2 in body of heater 1; Body of heater 1 is the common suitable process furnace that metal parts is heat-treated, mainly by furnace wall, furnace lining, heating unit (hot air duct, smoke discharging pipe), temperature-control device, material-pulling device, sealing door device etc., general reference adopts electrically heated, combustion gas to heat the variable displacement type process furnace that (comprising Sweet natural gas, coal gas etc.), coal heating etc. are heat-treated metal parts.Burner hearth 2 is the positions of placing pending metal parts, is the cavity of the relative sealing of body of heater 1 inside.The utility model is that movable middle fire door 3 is set in burner hearth 2, and burner hearth 2 is divided into two portions, the right section 5 of burner hearth left side section 4 and burner hearth.Middle fire door 3 is movable, adopt craft or mechanism to move, after middle fire door 3 is removed in the burner hearth 2, burner hearth 2 is exactly a monoblock type burner hearth, when middle fire door 3 moves in the burner hearth 2, burner hearth 2 is separated into two independently little burner hearths, the right section 5 of burner hearth left side section 4 and burner hearth, can heat-treat with one of them, promptly the right section 5 of burner hearth left side section 4 and burner hearth is communicated with heating unit respectively, individually or simultaneously heat temperature raising.Prior art is adopted in sealing between middle fire door 3 and the body of heater 1, guarantees that the space in the burner hearth 2 meets the seal request of variable displacement type process furnace; After being separated into the right section 5 of burner hearth left side section 4 and burner hearth, guarantee sealing mutually between the right section 5 of burner hearth left side section 4 and burner hearth, meet the seal request of variable displacement type process furnace.For bigger middle fire door 3, a mobile stove gate device 7 is set is connected with middle fire door 3, fire door 3 in the middle of mobile stove gate device 7 moves guarantees quick and convenient.Mobile stove gate device 7 can adopt the running gear of prior art, and fire door 3 is with respect to burner hearth 2 left and right moving or upper and lower moving in the middle of driving.

The position of middle fire door 3, approximately be arranged on 1/3 place of burner hearth 2 length, like this in two independently little burner hearths that burner hearth 2 is separated into, the length (being volume) of burner hearth left side section 4 is half of the right section 5 of burner hearth, the volume of the right section 5 of burner hearth is burner hearth left side section 4 volumetrical twices, two of PRESSURE-VOLUME RELATION independently little burner hearths so more can adapt to the needs of production.

In Fig. 1,2,3,8---cucurbit device, 9-chain, 10-deflection sheave;

As further improvement of the utility model, be arranged on the primary structure member of body of heater 1 at the mobile stove gate device 7 of middle fire door 3, specifically can be on steel column or gooseneck; Mobile stove gate device 7 of the present utility model comprises cucurbit device 8, chain 9 and deflection sheave 10.Between fire door 3 and the cucurbit device 8, the deflection sheave 10 of chain 9 through being arranged on the body of heater 1 turned in the middle of chain 9 was connected; Cucurbit device 8 can be selected existing electronic or bottle gouard moved by hands for use, as the power set of fire door 3 in the middle of moving.During fire door 3, start cucurbit device 8 in the middle of moving, cucurbit device 8 drives chains 9, and fire door 3 rose or descends in the middle of chain 9 drove.

Claims

1, a kind of variable displacement type process furnace comprises body of heater (1), forms burner hearth (2) in body of heater (1); It is characterized in that: movable middle fire door (3) is set in burner hearth (2), burner hearth (2) is divided into burner hearth left side section (4) and the right section of burner hearth (5).

2, variable displacement type process furnace according to claim 1 is characterized in that: mobile stove gate device (7) is set is connected with middle fire door (3), fire door (3) in the middle of moving with mobile stove gate device (7).

3, variable displacement type process furnace according to claim 1 and 2 is characterized in that: the position of middle fire door (3) is arranged on 1/3 place of burner hearth (2) length.

4, variable displacement type process furnace according to claim 2, it is characterized in that: described mobile stove gate device (7) is arranged on the body of heater (1), comprise cucurbit device (8), chain (9) and deflection sheave (10), chain (9) is connected between middle fire door (3) and the cucurbit device (8).