CN202221227U - Stepping heating furnace for tubular shaft workpiece - Google Patents
Stepping heating furnace for tubular shaft workpiece Download PDFInfo
- Publication number
- CN202221227U CN202221227U CN2011202736011U CN201120273601U CN202221227U CN 202221227 U CN202221227 U CN 202221227U CN 2011202736011 U CN2011202736011 U CN 2011202736011U CN 201120273601 U CN201120273601 U CN 201120273601U CN 202221227 U CN202221227 U CN 202221227U
- Authority
- CN
- China
- Prior art keywords
- furnace
- workpiece
- heater
- side wall
- transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a stepping heating furnace for tubular shaft workpieces, wherein a heating hearth (D) and an elevating transmission chamber (S) arranged in the core space of the furnace are separated from each other through a separation fixed frame (20). A furnace roof (2) is provided with a depressing fire blocking wall (7). A furnace bottom (10) is arranged on the separation fixed frame (20). A side wall (27) is provided with a burner (3). An elevating beam (15) is driven to elevate through an elevating hydraulic cylinder (12). The translation of a transmission beam (14) is driven by a transmission hydraulic cylinder (11). The top of a transmission pillar (19) above the transmission beam (14) is provided with a movable furnace bottom (26) capable of moving in a longitudinal channel (T) arranged on the separation fixed frame (20) and the furnace bottom (10). A workpiece (G) is moved horizontally to a front station through the movable furnace bottom (26) and then is left on the front station for being heated through the transmission beam (14) along with the descending of the elevating beam (15). The transmission beam (14) is pulled back to its original site through the transmission hydraulic cylinder (11) so as to continue the next cycle. Due to the adoption of the stepping heating furnace, the stepping speed of a workpiece is balanced and the heating quality of the workpiece is good. Meanwhile, the stepping heating furnace is low in operation cost and high in production efficiency.
Description
Technical field
The utility model relates to industrial furnace, relates in particular to the metal works heating furnace.
Background technology
During modern industrialization was produced, industrial furnace was a kind of important processing facility, and metal works is heated, and improved material property; Particularly tubular axis class workpiece is high to material performance requirement, and the heating process workpiece requires to be heated evenly; The body of heater capacity is big, and inner operating is complicated, and operation easier is big.The heating furnace of existing processing tube shaft-like workpiece mainly contains Sloping Hearth and rotary heating furnace.The burner hearth of Sloping Hearth Heating Furnace tilts to the front lower place, and discharging opening is high-end at body of heater, and workpiece is arranged along the furnace bottom inclined-plane, and flue is arranged on below the furnace bottom, and furnace bottom mixes upright supports by brick, and the two sides, furnace wall have some groups of steel casement doors, stir workpiece with manual work.This structural device is simple in structure, invest lower, in middle-size and small-size steel pipe enterprise, use more, but because automaticity is low; Hand labor intensity is big, and dials steel casement door and often open, and it is irregular that workpiece is stirred progress; Heat inhomogeneously, energy resource consumption is more, and heating quality can not get ensureing fully.Rotary heating furnace is the higher round kiln of automaticity, adopts machine driving running workpiece, can adapt to the demanding workpiece heating of large-size workpiece and thermal technology needs, and workpiece need not stirred in heating process, stir, and oxidization burning loss is few, and manually-operated intensity is low.But because device structure is complicated, floor space is many, and investment is big, and investment is long return period, and feed inlet and outlet is at a distance of nearer, operate limitedly, and the thermal efficiency is on the low side, and the rebuilding and expansion of the of the existing enterprises is restricted, and the medium-sized and small enterprises application does not suit.
The utility model content
The purpose of the utility model just provides a kind of rational in infrastructurely, easy to operate, and automaticity is higher, guarantees the workpiece heating quality, invest relatively lowly, and floor space is less, and reorganization and expansion makes things convenient for, the tubular axis class workpiece heating furnace that operating cost is low, production efficiency is high.
The task of the utility model is to accomplish like this: design a kind of tubular axis class workpiece walking beam furnace; In body of heater, installing heating system, sealing device, workpiece transfer mechanism, hydraulic power system constitutes; Body of heater comprises pedestal, headwall, side wall, side wall column, furnace bottom, separation fixed mount, middle standing pillar, fixed mount column, furnace roof, furnace roof reinforcement, charging aperture; Heating system comprises heating furnace, burner, combustion gas interface, combustion air interface, exhanst gas outlet; Sealing device comprises end water seal tank, water-cooling groove, sealing gland groove; Workpiece transfer mechanism comprise transmit beam, transmit pillar, travelling oven at the bottom of, transmit guide rail, up-down beam, riser guide, load-bearing roller, hydraulic power system comprises lifting hydraulic cylinder, transmits hydraulic cylinder.Body of heater constitutes gabarit by side wall, headwall, the furnace roof of pedestal and both sides, and some side wall columns are evenly arranged in outside the side wall of body of heater, and the bottom is fixed on and supports the furnace roof reinforcement on the concrete pedestal; Separating fixed mount is the plane slab; Be horizontally set in the middle of the body of heater inner chamber, the fixed mount upright supports frame that is provided with by the middle standing pillar of some vertical arrangements and bilateral symmetry is divided into two parts up and down with the body of heater inner chamber on pedestal; Top is the heating furnace chamber, and the bottom is the up-down transmission cavity.Furnace roof is by furnace roof reinforcement bracing reinforcement, and furnace bottom is installed in to be separated on the fixed mount, furnace bottom with separate the vertical passage that has two up/down perforations on the fixed mount, with corresponding matching at the bottom of the transmission pillar of workpiece transfer mechanism and the travelling oven.The heating furnace of heating system is made up of furnace roof, furnace bottom, side wall, the headwall of installing refractory material; Some burners connect combustion gas interface and are installed in the burner hole of opening on the side wall; The combustion gas interface in the body of heater outside is connected with the gas supply pipe, and corresponding supporting with the combustion air interface, and longitudinal separation is provided with some firebreaks of depressing on the furnace roof; Exhanst gas outlet is vertically set on the furnace roof of body of heater charging aperture, offers some observation panels on the side wall.Workpiece transfer mechanism is arranged in the up-down transmission cavity of body of heater inner chamber bottom; On the pedestal of middle standing pillar both sides, be symmetrical set some groups of riser guides, the up-down beam is the weight-bearing activities beam that vertically runs through the up-down transmission cavity with transmitting beam, and the up-down beam is arranged on and transmits below the beam; Each symmetry installing two row's load-bearing roller of the end face of up-down beam and bottom surface; The bottom surface roller is corresponding with riser guide supporting, and the end face roller rolls with the transmission guide rail that transmits the soffit and cooperates, and two rows is set above the transmission beam transmits pillars; Transmit the end face of pillar and install at the bottom of vertical rectangular travelling oven, cooperate with vertical passage on separating fixed mount and furnace bottom.The end water seal tank of sealing device is arranged on the up-down transmission cavity port of export, and water-cooling groove is located at the passage edge of separating on the fixed mount, and the sealing gland groove is arranged on the passage edge on the furnace bottom, and the end water seal tank connects water-cooling groove by water cooled pipeline.Hydraulic power system is arranged on the feed end of body of heater; Lifting hydraulic cylinder is located at the end central authorities of up-down beam; The piston rod end connects the up-down beam, and the cylinder body base is fixed on the pedestal, transmits hydraulic cylinder and is located at the end central authorities that transmit beam; The piston rod end connects transmits beam, and the cylinder body base is fixed on the pedestal of feed end.During practical application, workpiece is laterally placed entering through charging aperture, heats in the heating furnace; Operating hydraulically operated dynamical system makes the lifting hydraulic cylinder oil-feed earlier, and piston rod stretches out forward; Promoting the up-down beam travels forward; Bottom surface roller below the up-down beam is up along the riser guide inclined-plane on the pedestal, and the end face roller above the up-down beam rolls with the transmission guide rail that transmits beam and cooperates, and pushes and transmits the beam rising; Pass furnace bottom and the passage rising of separating fixed mount at the bottom of making the related travelling oven of transmission pillar that transmits above the beam, workpiece is lifted.Transmit the hydraulic cylinder oil-feed this moment, piston rod promotes to transmit beam and runs to a preceding station, after workpiece arrives the precalculated position; The lifting hydraulic cylinder oil return, piston rod pulling up-down beam, the bottom surface roller is retreated along riser guide; The decline of up-down beam, drive transmission beam descends, and falls after rise in the passage of furnace bottom and separation fixed mount with the transmission pillar at the bottom of the travelling oven; Break away from workpiece, workpiece is supported by furnace bottom and rests on the place ahead station of heating furnace.Transmit the hydraulic cylinder oil return, the piston rod pulling transmits beam, cooperates running through transmitting guide rail with the end face roller of up-down beam; Get back to the home position, cooperate with the up-down beam again and carry out next one circulation, with workpiece station operation forward successively one by one; Burner on the heating furnace side wall jets out flames in burner hearth; Workpiece is heated, and flame hot gas is full of heating furnace and advances to the discharging opening direction, discharges the body of heater outside through exhanst gas outlet; The firebreak of depressing of furnace roof plays the effect that slows down the motion of flame hot gas, improves the efficiency of heating surface.The gentle sealing groove of water-cooling groove to travelling oven at the bottom of with transmit pillar and play cooling and sealing function, prevent the up-down transmission cavity of the hot gas leakage of heating furnace to body of heater lower floor, both kept the temperature of heating furnace, keep the normal temperature of up-down transmission cavity not raise again.Establish water pump in the water seal tank of end, connect water cooled pipeline, the water source is provided the water circulation of water cooled seal system.
Make, test according to above-mentioned design, prove that the project organization of the utility model is reasonable, the fluid-pressure transmission automaticity is high, and the thermal efficiency of heating furnace is high; Can make full use of the energy, tubular axis class workpiece homogeneous heating quality is good, and operating cost is low, and maintenance cost is few; Save the manual work and the energy, floor space is little, and operation moves convenient, and installation, enlarging, reconstruction are conveniently; Production efficiency is high, and is good in economic efficiency, reached predetermined purpose preferably.
Description of drawings
Fig. 1 is the overall structure section signal of the utility model;
Fig. 2 is the K-K cross-sectional view of Fig. 1;
Fig. 3 is the H-H cross-sectional view of Fig. 2.
Among the figure, 1-headwall, 2-furnace roof, 3-burner, 4-side wall column, 5-furnace roof reinforcement, 6-refractory material; 7-depress firebreak, 8-exhanst gas outlet, 9-charging aperture, 10-furnace bottom, 11-transmission hydraulic cylinder, 12-lifting hydraulic cylinder; 13-pedestal, 14-transmission beam, 15-up-down beam, 16-bottom surface roller, 17-end face roller, 18-riser guide; 19-transmit pillar, 20-separation fixed mount, 21-water-cooling groove, 22-transmission guide rail, 23-water cooled pipeline, 24-water pump; 25-end water seal tank, at the bottom of 26-travelling oven, 27-side wall, 28-sealing gland groove, 29-fixed mount column, 30-middle standing pillar; K-section symbols, H-section symbols, D-heating furnace, G-workpiece, F-combustion air interface, Q-combustion gas interface, R-observation panel, S-up-down transmission cavity, T-passage.
The specific embodiment
Below in conjunction with accompanying drawing the practical implementation of the utility model is explained.
Consult Fig. 1, Fig. 2, body of heater is horizontally disposed with, and the bottom is a concrete pedestal 13, and bilateral symmetry is provided with some side wall columns 4, connects the furnace roof reinforcement 5 that the top is provided with, the support fixation body of heater, and pedestal 13 has constituted the body of heater gabarit jointly with furnace roof 2, side wall 27, headwall 1.Be provided with in the middle of the body of heater and separate fixed mount 20, front and back connect body of heater, and both sides connect side wall 27, and whole body of heater inner chamber is divided into two parts up and down, and top is heating furnace D, and the bottom is up-down transmission cavity S.Furnace roof 2 is provided with several and depresses firebreak 7; The furnace roof 2 at charging aperture 9 places has vertical exhanst gas outlet 8; Side wall 27, headwall 1, furnace roof 2, furnace bottom 10 are all installed refractory material 6; Some groups of symmetry burners 3 are housed on the both sides side wall 27, connect gas pipeline through combustion gas interface Q, and supporting with combustion air interface F.Offer some observation panel R on the side wall 27.Workpiece G gets into heating furnace D through charging aperture 9, laterally is seated on the furnace bottom 10.The up-down beam 15 and transmission beam 14 of vertical perforation body of heater are set in the up-down transmission cavity S; Up-down beam 15 is located at lower floor, and bottom surface and end face are installed the load-bearing rollers of some groups of symmetries, and the riser guide 18 of setting is corresponding on bottom surface roller 16 and the pedestal 13; End face roller 17 cooperates with the transmission guide rail 22 that transmits beam 14 bottom surfaces; Transmit the transmission pillar 19 that two row's symmetries vertically are set above the beam 14, each transmits above the pillar 19 at the bottom of the rectangular longitudinally travelling oven of fixing installing 26, with separate fixed mount 20 and furnace bottom 10 on the vertical passage T that offers cooperate; Can be up and down along passage T, lengthwise movement.Up-down beam 15 ends are connected with lifting hydraulic cylinder 12, promote down at lifting hydraulic cylinder 12, and the bottom surface roller 16 of up-down beam 15 is up along riser guide 18, and up-down beam 15 can drive and transmit beam 14 upwards, make to transmit at the bottom of pillar 19 and the travelling oven 26 and in passage T, rise.Transmit beam 14 ends and connect and transmit hydraulic cylinder 11, transmit beam 14 translation forward under the promotion that transmits hydraulic cylinder 11, transmit at the bottom of the travelling oven on pillar 19 tops 26 and lift workpiece G and move to next station forward.Up-down beam 15 descends, and transmits beam 14 and descends thereupon, and 26 sink in passage T at the bottom of the travelling oven, break away from workpiece G, and workpiece G is retained on the next station above the furnace bottom 10.Transmit beam 14 and return original position, get into the next round circulation with up-down beam 15 by transmitting hydraulic cylinder 11 pullings.So reciprocation cycle transmits a plurality of workpiece G step-by-step movements forward successively.Adding thermal-flame is sprayed in heating furnace D by burner 3; Along heating furnace D to charging aperture 9 direction reverse flows; Under the compacting of depressing firebreak 7 of furnace roof 2, slow down flow velocity, keep the temperature of heating furnace D, discharge body of heater from the exhanst gas outlet 8 of body of heater charging aperture 9 at last.Vertical passage T edge separating fixed mount 20 and furnace bottom 10 is provided with water-cooling groove 21 gentle sealing grooves 28 respectively; To at the bottom of the travelling oven 26 with transmit the passage T gap that pillar 19 cooperates with it and carry out coolant seal, the high temperature of maintenance upper strata heating furnace D and the normal temperature of the up-down transmission cavity S of lower floor.Prevent that the heat in the heating furnace D scatters and disappears, and improves the thermal efficiency.
Consult Fig. 3, offer vertical passage T on the furnace bottom 10 of separation fixed mount 20 and heating furnace D, 26 are installed among the passage T at the bottom of transmission pillar 19 and the travelling oven; Up-down beam 15 rises and will transmit upwards jack-up of beam 14; Transmit at the bottom of pillar 19 and the travelling oven 26 and in passage T, rise, the furnace bottom 10 that workpiece G exceeds heating furnace D 26 is lifted at the bottom of the travelling oven longitudinally in both sides, transmits hydraulic cylinder 11 and promotes to transmit beams 14 and move forward; 26 send workpiece G into next station at the bottom of the travelling oven; Up-down beam 15 descends to driving and transmits beam 14 fallings, and 26 fall in the passage T of furnace bottom 10 at the bottom of the travelling oven, and workpiece G is held by furnace bottom 10 and is retained on the next station.Transmit hydraulic cylinder 11 pulling transmission beams 14 and get back to original position, carry out next circulation with up-down beam 15 again.The passage T that separates fixed mount 20 and furnace bottom 10 is provided with water-cooling groove 21 gentle sealing grooves 28 on every side respectively.
The utility model compact conformation, floor space is little, and automaticity is high, and is easy to operate, and the workpiece homogeneous heating guarantees heating quality, and the thermal efficiency is high, saves manpower, the energy, and operating cost is low, and production efficiency is high, and the rebuilding and expansion of the of the existing enterprises is convenient.Compare with the inclined-bottom heating furnace of original structure, ton steel oxidation scaling loss reduces 50%, and the thermal efficiency improves 10%, and output improves 17%.The utility model small investment, payoff period is short, and is good in economic efficiency, is suitable for vast middle-size and small-size steel pipe processing enterprise and uses.
Claims (6)
1. tubular axis class workpiece walking beam furnace; It is characterized in that it being in body of heater, to install heating system, sealing device, workpiece transfer mechanism, hydraulic power system to constitute; Body of heater comprises pedestal (13), headwall (1), side wall (27), side wall column (4), furnace bottom (10), separates fixed mount (20), middle standing pillar (30), fixed mount column (29), furnace roof (2), furnace roof reinforcement (5), charging aperture (9); Heating system comprises heating furnace (D), burner (3), combustion gas interface (Q), combustion air interface (F), exhanst gas outlet (8); Sealing device comprises end water seal tank (25), water-cooling groove (21), sealing gland groove (28); Workpiece transfer mechanism comprises and transmits beam (14), transmits (26) at the bottom of pillar (19), the travelling oven, transmits guide rail (22), up-down beam (15), riser guide (18), load-bearing roller that hydraulic power system comprises lifting hydraulic cylinder (12), transmits hydraulic cylinder (11).
2. according to the described tubular axis class of claim 1 workpiece walking beam furnace; It is characterized in that described body of heater is by side wall (27), headwall (1), furnace roof (2) the formation gabarit of pedestal (13) with both sides; Some side wall columns (4) are evenly arranged in outside the side wall (27) of body of heater; The bottom is fixed on concrete pedestal (13) and goes up support furnace roof reinforcement (5), and separating fixed mount (20) is the plane slab, is horizontally set in the middle of the body of heater inner chamber; Fixed mount column (29) bracing frame that is provided with by the middle standing pillar (30) of some vertical arrangements and bilateral symmetry is on pedestal (13); The body of heater inner chamber is divided into two parts up and down, and top is heating furnace chamber (D), and the bottom is up-down transmission cavity (S); Furnace roof (2) is by furnace roof reinforcement (5) bracing reinforcement; Furnace bottom (10) is installed in to be separated on the fixed mount (20), furnace bottom (10) with separate the vertical passage (T) that has two up/down perforations on the fixed mount (20), with (26) corresponding matching at the bottom of the transmission pillar (19) of workpiece transfer mechanism and the travelling oven.
3. according to the described tubular axis class of claim 1 workpiece walking beam furnace; It is characterized in that the heating furnace (D) of described heating system is made up of furnace roof (2), furnace bottom (10), side wall (27), the headwall (1) of installing refractory material (6); Some burners (3) connect combustion gas interface (Q) and are installed in the burner hole of opening on the side wall (27); The combustion gas interface (Q) in the body of heater outside is connected with the gas supply pipe; And it is corresponding supporting with combustion air interface (F); Furnace roof (2) is gone up longitudinal separation and is provided with some firebreaks (7) of depressing, and exhanst gas outlet (8) is vertically set on the furnace roof (2) of body of heater charging aperture (9), offers some observation panels (R) on the side wall (27).
4. according to the described tubular axis class of claim 1 workpiece walking beam furnace; It is characterized in that described workpiece transfer mechanism is arranged in the up-down transmission cavity (S) of body of heater inner chamber bottom; On the pedestal (13) of middle standing pillar (30) both sides, be symmetrical set some groups of riser guides (18); Up-down beam (15) is the weight-bearing activities beam that vertically runs through up-down transmission cavity (S) with transmission beam (14); Up-down beam (15) is arranged on and transmits below the beam (14), each symmetry installing two row's load-bearing roller of the end face of up-down beam (15) and bottom surface, and bottom surface roller (16) is corresponding supporting with riser guide (18); End face roller (17) rolls with the transmission guide rail (22) that transmits beam (14) bottom surface and cooperates; Transmit beam (14) above two rows be set transmit pillars (19), the end face that transmits pillar (19) is installed (26) at the bottom of vertical rectangular travelling oven, cooperates with vertical passage (T) on separating fixed mount (20) and furnace bottom (10).
5. according to the described tubular axis class of claim 1 workpiece walking beam furnace; The end water seal tank (25) that it is characterized in that described sealing device is arranged on up-down transmission cavity (S) port of export; Water-cooling groove (21) is located at passage (T) edge of separating on the fixed mount (20); Sealing gland groove (28) is arranged on passage (T) edge on the furnace bottom (10), and end water seal tank (25) connects water-cooling groove (21) by water cooled pipeline (23).
6. according to the described tubular axis class of claim 1 workpiece walking beam furnace; It is characterized in that described hydraulic power system is arranged on the feed end of body of heater, lifting hydraulic cylinder (12) is located at the end central authorities of up-down beam (15), and the piston rod end connects up-down beam (15); The cylinder body base is fixed on the pedestal (13); Transmit hydraulic cylinder (11) and be located at the end central authorities that transmit beam (14), the piston rod end connects transmits beam (14), and the cylinder body base is fixed on the pedestal (13) of feed end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202736011U CN202221227U (en) | 2011-07-29 | 2011-07-29 | Stepping heating furnace for tubular shaft workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202736011U CN202221227U (en) | 2011-07-29 | 2011-07-29 | Stepping heating furnace for tubular shaft workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202221227U true CN202221227U (en) | 2012-05-16 |
Family
ID=46043251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202736011U Expired - Fee Related CN202221227U (en) | 2011-07-29 | 2011-07-29 | Stepping heating furnace for tubular shaft workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202221227U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851462A (en) * | 2012-08-14 | 2013-01-02 | 苏州汇科机电设备有限公司 | Heat treatment furnace |
| CN104266489A (en) * | 2014-10-10 | 2015-01-07 | 韩根望 | Fast side discharge method of step-by-step bottom-type furnace |
| CN106425009A (en) * | 2016-11-29 | 2017-02-22 | 张跃 | Brazing heating equipment and foundational fixing structure |
| CN106955903A (en) * | 2017-04-20 | 2017-07-18 | 佛山市精业机械制造有限公司 | A kind of full-automatic short aluminium bar heated line and its method |
| CN108826987A (en) * | 2018-08-30 | 2018-11-16 | 湖北中冶窑炉有限公司 | A kind of even temperature heating oven |
| CN113566565A (en) * | 2021-07-29 | 2021-10-29 | 湖北中冶窑炉有限公司 | Stepping bottom type heating furnace for heating stainless steel round steel before punching |
| CN114273599A (en) * | 2020-12-29 | 2022-04-05 | 山东恒力源精密机械制造有限公司 | Bolt type round steel heating furnace |
-
2011
- 2011-07-29 CN CN2011202736011U patent/CN202221227U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851462A (en) * | 2012-08-14 | 2013-01-02 | 苏州汇科机电设备有限公司 | Heat treatment furnace |
| CN104266489A (en) * | 2014-10-10 | 2015-01-07 | 韩根望 | Fast side discharge method of step-by-step bottom-type furnace |
| CN104266489B (en) * | 2014-10-10 | 2016-05-04 | 韩根望 | Stepping-bottom-type stove fast side discharging method |
| CN106425009A (en) * | 2016-11-29 | 2017-02-22 | 张跃 | Brazing heating equipment and foundational fixing structure |
| CN106955903A (en) * | 2017-04-20 | 2017-07-18 | 佛山市精业机械制造有限公司 | A kind of full-automatic short aluminium bar heated line and its method |
| CN108826987A (en) * | 2018-08-30 | 2018-11-16 | 湖北中冶窑炉有限公司 | A kind of even temperature heating oven |
| CN114273599A (en) * | 2020-12-29 | 2022-04-05 | 山东恒力源精密机械制造有限公司 | Bolt type round steel heating furnace |
| CN114273599B (en) * | 2020-12-29 | 2024-03-19 | 山东恒力源精密机械制造有限公司 | Bolt type round steel heating furnace |
| CN113566565A (en) * | 2021-07-29 | 2021-10-29 | 湖北中冶窑炉有限公司 | Stepping bottom type heating furnace for heating stainless steel round steel before punching |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202221227U (en) | Stepping heating furnace for tubular shaft workpiece | |
| CN202675857U (en) | Wide-body energy-saving and environment-friendly tunnel kiln | |
| CN102748942A (en) | Wide-bodied energy-saving and environment-friendly tunnel kiln | |
| CN200940153Y (en) | Double layered roller bottom type continuous spheroidizing furnace | |
| CN112432497A (en) | Walking beam type continuous heating furnace and use method thereof | |
| CN201302364Y (en) | Bi-circulating aluminum smelting furnace | |
| CN102952928A (en) | Novel aluminum material annealing furnace with bottom loading | |
| CN212374893U (en) | Calcium carbide cooling and heat radiating device | |
| CN102692120A (en) | Multi-station drying room capable of feeding and discharging working piece at top part | |
| CN202671592U (en) | Ultra-large type trolley type gas heat treatment furnace with movable back wall | |
| CN203782196U (en) | Step-type heating furnace | |
| CN110423860B (en) | Scrap steel preheating furnace | |
| CN210420022U (en) | Scrap steel preheating furnace | |
| CN201809399U (en) | Energy-saving multilayer heat-exchange type continuous annealing furnace | |
| CN201715857U (en) | Rotary extrusion aluminum wheel hub material billet heating furnace | |
| CN205784530U (en) | Sectional type tunnel kiln | |
| CN208933438U (en) | Billet heating furnace | |
| CN212123660U (en) | Connecting rod driving tube drawing machine for wallboard machine | |
| CN207132717U (en) | Heat accumulating type stepping hearth furnace | |
| CN203270002U (en) | Deflection-preventing high-efficiency step bottom type steel rolling heating furnace | |
| CN113370359A (en) | Connecting rod driving tube drawing machine for wallboard machine | |
| CN202181329U (en) | Billet step-type heating furnace | |
| CN212983003U (en) | Automatic spray quenching production line for heat treatment of large thin-wall cylinder | |
| CN202630643U (en) | Multi-station drying room employing top workpiece charging and discharging mode | |
| CN212955262U (en) | Steel pipe heating furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120516 Termination date: 20120729 |