CN216688226U - Double-station gas box type furnace group tempering production line - Google Patents
Double-station gas box type furnace group tempering production line Download PDFInfo
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- CN216688226U CN216688226U CN202123297809.XU CN202123297809U CN216688226U CN 216688226 U CN216688226 U CN 216688226U CN 202123297809 U CN202123297809 U CN 202123297809U CN 216688226 U CN216688226 U CN 216688226U
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model discloses a double-station gas box type furnace group hardening and tempering production line which comprises a quenching furnace group, a tempering furnace group and a plurality of quenching tanks, wherein furnace doors of the quenching furnace group and the tempering furnace group are arranged in a forward straight line, two parallel rails are arranged on the front side of the furnace group, a pit is arranged between the two rails, the plurality of quenching tanks are arranged in the pit in parallel, a loading and unloading trolley is connected onto the two parallel rails, a lifting material fork is arranged on the loading and unloading trolley, the loading and unloading trolley finishes feeding and discharging of a quenching furnace and a tempering furnace through the forward and backward movement of the material fork, and finishes quenching and cooling of workpieces in different quenching tanks after tempering through the up and down movement of the material fork. The quenching furnace and the tempering furnace can complete feeding and discharging of the quenching furnace and the tempering furnace through one loading and unloading trolley, complete quenching and tempering cooling of workpieces in different quenching tanks, and are high in working efficiency, low in equipment investment and low in management cost.
Description
Technical Field
The utility model relates to the technical field of heat treatment, in particular to a double-station gas box type furnace group tempering production line.
Background
The heat treatment method of high-temperature tempering after quenching is called as thermal refining. High temperature annealing refers to annealing at 500-650 ℃. The quenching and tempering can adjust the performance and the material quality of the steel to a great extent, and the steel has better strength, plasticity and toughness and good comprehensive mechanical properties. The quenching and tempering production line generally comprises a quenching furnace, a tempering furnace and a quenching tank, and the feeding and discharging processes of the conventional quenching and tempering production line need manual operation, so that the working efficiency is low and the labor capacity is large. In addition, the quenching tank, the quenching furnace and the tempering furnace need to use different types of discharge trucks, so that the management is inconvenient, and the equipment investment cost is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a double-station gas box type furnace group tempering production line.
The technical scheme adopted by the utility model is as follows:
a double-station gas box type furnace group tempering production line comprises a quenching furnace group, a tempering furnace group and a plurality of quenching tanks, wherein the quenching furnace group and the tempering furnace group are sequentially arranged on the ground in a straight line from right to left, and furnace doors face the front side; a double-station feeding frame is arranged on the right side of the quenching furnace group, and a double-station discharging frame is arranged on the left side of the tempering furnace group; the front sides of the quenching furnace group and the tempering furnace group are provided with two parallel rails, a pit is arranged between the two parallel rails, the plurality of quenching tanks are arranged in the pit in parallel, the two parallel rails are connected with a loading and unloading trolley, the loading and unloading trolley transversely moves along the two parallel rails, a lifting material fork is arranged on the loading and unloading trolley, the loading and unloading trolley finishes feeding and discharging of the quenching furnace and the tempering furnace through the front and back movement of the material fork, and the quenching and cooling after tempering of workpieces in different quenching tanks are finished through the up and down movement of the material fork.
Further, quenching furnace stove crowd includes three gas box quenching furnaces, tempering furnace stove crowd includes five gas box tempering furnaces, three gas box quenching furnaces and five gas box tempering furnaces one set of system of discharging fume that shares, and all be equipped with two zones of heating in each gas box tempering furnace and the gas box quenching furnace.
Furthermore, the smoke exhaust system comprises a smoke exhaust pipeline and a smoke exhaust fan, one side of the smoke exhaust pipeline is respectively connected with the smoke exhaust ports of the furnace bodies through smoke exhaust branch pipes, the smoke exhaust branch pipes are provided with smoke exhaust regulating valves, and the other side of the smoke exhaust pipeline is connected with the smoke exhaust fan through a three-way pipe.
Further, the quenching tanks are respectively a medium tank, a salt water tank, a clear water tank and a cooling tank; the cooling tank is used for cooling the tempered workpiece, and the medium tank, the salt water tank and the clear water tank are respectively filled with different quenching media and are respectively used for cooling the quenched workpiece made of different materials.
Furthermore, the medium tank, the brine tank, the clear water tank and the cooling tank share one set of cooling system, the cooling system comprises a refrigerator, a water tank and a cold water pump, the water tank is respectively connected with the refrigerator and the cold water pump through pipelines, and the cold water pump is respectively connected with coolers of the medium tank, the brine tank, the clear water tank and the cooling tank through a cold water pipe and a valve.
Furthermore, electric lifting slag removal devices are arranged in the medium tank, the salt water tank, the clear water tank and the cooling tank and are used for removing oxide skin deposited at the bottom of the tank.
Furthermore, proximity switches are respectively arranged on the parallel tracks at positions opposite to the furnace doors and the quenching tank, and a limiting block for triggering the proximity switches is arranged on the loading and unloading trolley.
Furthermore, the loading and unloading trolley comprises a cart, a trolley and a lifting fork, wherein the cart transversely moves along the parallel rails, and the trolley longitudinally moves on the cart; the lifting material fork comprises a fixed support, a sliding door frame, a material fork, an oil cylinder, a chain wheel and a chain, wherein the fixed support is vertically arranged at the front end of the trolley; the material fork is fixed at the lower end of the material frame and is driven by the oil cylinder to move up and down.
The utility model has the beneficial effects that:
1. according to the double-station gas box type furnace group tempering production line, feeding and discharging of a quenching furnace and a tempering furnace can be completed through one loading and unloading trolley, quenching and cooling after tempering of workpieces in different quenching tanks can be completed, the working efficiency is high, the equipment investment is low, and the management cost is low.
2. According to the double-station gas box type furnace group tempering production line, the automatic feeding and discharging of a quenching furnace and a tempering furnace and the automatic control of the quenching and tempering processes can be realized by adopting the existing PLC control technology, and the automatic cooling of a workpiece in a quenching tank after quenching and tempering is realized.
Drawings
FIG. 1 is a schematic structural diagram of a double-station gas box type furnace group tempering production line.
Fig. 2 is a sectional view taken along a-a of fig. 1.
Fig. 3 is a schematic structural view of the loading and unloading truck of the present invention.
Fig. 4 is a side view of fig. 3.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail and fully with reference to the accompanying drawings and a preferred embodiment.
Referring to fig. 1 to 2, the embodiment provides a quenching and tempering production line for a double-station gas box type furnace group, which includes a quenching furnace group 20, a tempering furnace group 30 and a plurality of quenching tanks. The quenching furnace group 20 and the tempering furnace group 30 are sequentially arranged on the ground in a straight line from right to left, and the furnace doors face the front side; a double-station feeding frame 10 for placing feeding trays is arranged on the right side of the quenching furnace group 20, and a double-station discharging frame 40 for placing discharging trays is arranged on the left side of the tempering furnace group; two parallel rails 61 are arranged on the front sides of the quenching furnace group and the tempering furnace group, a pit 62 is arranged between the two parallel rails 61, the plurality of quenching tanks are arranged in the pit 62 in parallel, the two parallel rails 61 are connected with a loading and unloading trolley 50, the loading and unloading trolley 50 transversely moves along the rails 61, a lifting material fork 511 is arranged on the loading and unloading trolley 50, the loading and unloading trolley 50 finishes feeding and discharging of the quenching furnace and the tempering furnace through the front and back movement of the material fork 511, and finishes quenching and cooling of workpieces in different quenching tanks after tempering through the up and down movement of the material fork 511.
In this embodiment, the quenching furnace group 20 includes a 1# gas box type quenching furnace 21, a 2# gas box type quenching furnace 22 and a 3# gas box type quenching furnace 23, the 1# gas box type quenching furnace 21, the 2# gas box type quenching furnace 22 and the 3# gas box type quenching furnace 23 are sequentially arranged from right to left, furnace doors face to the front side, a hot air circulation system, a combustion system and a smoke exhaust system are arranged in the furnace bodies, and two temperature zones are arranged in the furnace cavities and respectively correspond to two material trays of the double-station material loading frame 10. The smoke exhaust system of the quenching furnace comprises a first row of cigarette pipelines and a first high-temperature-resistant automatic smoke exhaust valve, the first row of cigarette pipelines are connected with a smoke exhaust main pipe 81 through the first high-temperature-resistant automatic smoke exhaust valve, and the smoke exhaust main pipe 81 is connected with a smoke exhaust fan 82.
The tempering furnace group 30 comprises a 4# gas box type tempering furnace 31, a 5# gas box type tempering furnace 32, a 6# gas box type tempering furnace 33, a 7# gas box type tempering furnace 34 and a 8# gas box type tempering furnace 35, the 5# gas box type tempering furnace 32, the 6# gas box type tempering furnace 33, the 7# gas box type tempering furnace 34 and the 8# gas box type tempering furnace 35 are sequentially discharged from right to left, furnace doors face to the front side, a hot air circulating system, a combustion system and a smoke discharging system are arranged in the furnace body, two temperature areas are arranged in the furnace body and correspond to two trays of the double-station feeding frame 10 respectively. The smoke exhaust system of the tempering furnace comprises a second smoke exhaust branch pipeline and a second high-temperature-resistant smoke exhaust automatic valve, the second smoke exhaust branch pipeline is connected with a smoke exhaust main pipe 81 through the second high-temperature-resistant smoke exhaust automatic valve, and the smoke exhaust main pipe 81 is connected with a smoke exhaust fan 82.
The gas box type quenching furnace and the five gas box type tempering furnaces share one set of smoke exhaust system, and the smoke exhaust fan 82 sucks waste smoke in the smoke exhaust main pipe 81 and discharges the waste smoke to the outside of the workshop. The high temperature resistant automatic smoke exhaust valve can form a closed loop control system with the furnace pressure transmitter and the pressure regulating instrument, so that the pressure of the hearth is automatically controlled, the opening degree of the smoke exhaust valve is automatically regulated along with the change of heat supply load, the furnace pressure is always in a micro-positive pressure state, the full utilization of hot air flow in the furnace is ensured, cold air outside the furnace is also ensured not to be sucked into the furnace, and the effect of saving energy is achieved.
In the present embodiment, the plurality of quenching tanks are a brine tank 71, a clear water tank 72, a medium tank 73, and a cooling tank 74, which are arranged in this order from right to left. The central line of the brine tank 71 is superposed with the central line of the 1# gas box type quenching furnace 21, and cold brine is filled in the brine tank 71 and is used for cooling the low-carbon steel workpiece after quenching. The clear water tank 72 and the medium tank 73 are respectively filled with clear water and other quenching media, the clear water tank 72 is used for cooling after quenching of the common carbon steel material workpiece, and the medium tank 73 is used for cooling after quenching of the special material workpiece. The brine tank 71, the clear water tank 72, the medium tank 73 and the cooling tank 74 are all matched with coolers, all the coolers share one set of cooling system, the cooling system comprises a refrigerating machine, a water tank and a cold water pump, the water tank is respectively connected with the refrigerating machine and the cold water pump through pipelines, and the cold water pump is respectively connected with the coolers of the brine tank 71, the clear water tank 72, the medium tank 73 and the cooling tank 74 through cold water pipes and valves.
Electric lifting slag removal devices 741 are arranged in the salt water tank 71, the clear water tank 72, the medium tank 73 and the cooling tank 74, and the electric lifting slag removal devices 741 are used for removing scale deposited on the bottom of the tank. The electric lifting slag removal device 741 is composed of a chain wheel and chain transmission mechanism and a slag removal box fixed on a transmission chain, wherein the slag removal box rotates along with the chain in a circulating manner, and the scale deposit at the bottom of the slag removal box is fished up and released out of the slag removal box.
In this embodiment, the loader 50 includes a cart 52, a dolly 53, and a fork. The cart 52 is a welded frame, and is composed of a cart frame, a driving device, a driving wheel set, a driven wheel set, a trolley guide rail and the like. The drive drives the cart 52 laterally along parallel rails 60. The trolley rails 521 are fixed on both longitudinal sides of the cart frame. The trolley 53 is composed of a trolley framework 531, a driven wheel set, a driving system and the like. The driving system drives the trolley 53 to stably walk along the trolley guide rail 521 in the longitudinal direction. The lifting material fork comprises a fixed support 512, a sliding door frame 513, a material frame 514, a material fork 511, an oil cylinder 517, a chain wheel 515 and a chain 516, wherein the fixed support 512 is fixedly arranged at the front end of a trolley framework 531, the sliding door frame 531 is respectively connected with the fixed support 512 and the material frame 514 in a sliding manner through a first guide wheel and a second guide wheel, the first guide wheel is fixed on the fixed support 512, and the second guide wheel is fixed on the material frame 514. Two oil cylinders 57 are provided, the cylinder bases are fixed on the trolley 53, the piston rods of the oil cylinders are connected with the top end of the sliding door frame 513, two chain wheels 515 are provided and can be respectively and rotatably fixed in the sliding door frame 513, two chains 516 respectively bypass the chain wheels 515, one end of each chain is commonly connected with the material frame 514, and the other end of each chain is commonly connected with the trolley framework 531; the fork 511 has three branches, and the uniform end is horizontally fixed at the lower end of the material frame 514.
The double-station gas box type furnace group tempering production line can be controlled by an automatic system consisting of an industrial personal computer, a touch screen and a plurality of PLC controllers, wherein the PLC controllers are respectively matched with a 1# gas box type quenching furnace 21, a 2# gas box type quenching furnace 22, a 3# gas box type quenching furnace 23, a 4# gas box type tempering furnace 31, a 5# gas box type tempering furnace 32, a 6# gas box type tempering furnace 33, a 7# gas box type tempering furnace 34 and a 8# gas box type tempering furnace 35, the saline water tank 71, the clear water tank 72, the medium tank 73 and the cooling tank 74 share one PLC controller, the touch screen and the PLC controller are in communication connection with the industrial personal computer, and the touch screen is provided with operation buttons and is used for displaying and alarming.
The working mode of the utility model is as follows:
the charging process comprises the following steps: an operator loads workpieces to be processed on the double-station loading frame 10 into a tray, presses a loading confirmation button once, selects the serial number of a quenching furnace to be loaded on a touch screen, moves a loading and unloading trolley 50 to the front of the double-station loading frame 10 along a parallel rail 60, extends a material fork 511 forwards to complete material taking action, then moves the loading and unloading trolley to the front of the corresponding quenching furnace along the parallel rail 60, opens a furnace door, sends the workpieces with the trays loaded into the quenching furnace by the loading and unloading trolley 50, closes the furnace door after the two trays are loaded, and automatically starts heating, warming and heat preservation timing of the quenching furnace.
Quenching and discharging: after the workpiece is heated and insulated in the quenching furnace, the quenching furnace gives out an audible and visual alarm to prompt an operator to carry out unloading treatment after quenching, at the moment, the operator selects the serial number of the quenching furnace on a touch screen, the unloading trolley 50 moves to the front of the corresponding furnace, the workpiece is forked out and moves to the front of the corresponding quenching tank, namely, the corresponding saline tank 71, the clear water tank 72 and the medium tank 73 are selected according to different workpiece materials, and the material fork 511 descends to carry out quenching and then is cooled; after the quenching process is finished, the material fork 511 rises, the loading and unloading trolley 50 gives out an audible and visual alarm to prompt an operator, the operator presses the tempering furnace serial number of the required tempering material on the touch screen, the loading and unloading trolley 50 moves to the corresponding tempering furnace to send the workpiece into the furnace, after the two materials are loaded, the tempering furnace is closed, and heating, temperature rising and heat preservation timing are automatically started.
Tempering and discharging: after the tempering furnace is insulated, the furnace door is opened, the loading and unloading trolley 50 forks the workpiece out and moves the workpiece to the front of the cooling tank 74, the material fork 511 descends to send the workpiece into the cooling tank 74 for cooling, after the cooling process is finished, the material fork 511 ascends, and the loading and unloading trolley 50 sends the cooled workpiece to the double-station unloading frame 40 for unloading.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various modifications and embellishments without departing from the principle of the present invention, and these modifications and embellishments are also within the scope of the present invention.
Claims (8)
1. The double-station gas box type furnace group tempering production line is characterized by comprising a quenching furnace group, a tempering furnace group and a plurality of quenching tanks, wherein the quenching furnace group and the tempering furnace group are sequentially arranged on the ground in a straight line from right to left, and furnace doors face the front side; a double-station feeding frame is arranged on the right side of the quenching furnace group, and a double-station discharging frame is arranged on the left side of the tempering furnace group; the front sides of the quenching furnace group and the tempering furnace group are provided with two parallel rails, a pit is arranged between the two parallel rails, the plurality of quenching tanks are arranged in the pit in parallel, the two parallel rails are connected with a loading and unloading trolley, the loading and unloading trolley transversely moves along the two parallel rails, a lifting material fork is arranged on the loading and unloading trolley, the loading and unloading trolley finishes feeding and discharging of the quenching furnace and the tempering furnace through the front and back movement of the material fork, and the quenching and cooling after tempering of workpieces in different quenching tanks are finished through the up and down movement of the material fork.
2. The quenching and tempering production line of a double-station gas box type furnace group according to claim 1, wherein said quenching furnace group comprises three gas box type quenching furnaces, said tempering furnace group comprises five gas box type tempering furnaces, three gas box type quenching furnaces and five gas box type tempering furnaces share one set of smoke exhaust system, and each of the gas box type tempering furnaces and the gas box type quenching furnaces are provided with two heating zones.
3. The double-station gas box type furnace group tempering production line according to claim 2, wherein a smoke exhaust system comprises a smoke exhaust pipeline and a smoke exhaust fan, one side of the smoke exhaust pipeline is respectively connected with the smoke exhaust ports of the furnace bodies through smoke exhaust branch pipes, the smoke exhaust branch pipes are provided with smoke exhaust regulating valves, and the other side of the smoke exhaust pipeline is connected with the smoke exhaust fan through a three-way pipe.
4. The double-station gas box type furnace group hardening and tempering production line according to claim 1, wherein the quenching tanks are a medium tank, a salt water tank, a clear water tank and a cooling tank respectively; the cooling tank is used for cooling the tempered workpiece, and the medium tank, the salt water tank and the clear water tank are respectively filled with different quenching media and are respectively used for cooling the quenched workpiece made of different materials.
5. The double-station gas box type furnace group tempering production line according to claim 4, wherein the medium tank, the brine tank, the clear water tank and the cooling tank share a set of cooling system, the cooling system comprises a refrigerator, a water tank and a cold water pump, the water tank is respectively connected with the refrigerator and the cold water pump through pipelines, and the cold water pump is respectively connected with coolers of the medium tank, the brine tank, the clear water tank and the cooling tank through cold water pipes and valves.
6. The double-station gas box type furnace group tempering production line according to claim 4, wherein electric lifting slag removal devices are arranged in the medium tank, the salt water tank, the clear water tank and the cooling tank and are used for removing oxide skin deposited on the bottom of the tank.
7. The double-station gas box type furnace group tempering production line according to claim 1, wherein proximity switches are respectively arranged at positions on the parallel rails, which are opposite to the furnace doors and the quenching tank, and the loading and unloading trolley is provided with a limit block for triggering the proximity switches.
8. The double-station gas box type furnace group tempering production line according to claim 1, wherein the loading and unloading trolley comprises a cart, a trolley and a lifting fork, the cart transversely moves along parallel rails, and the trolley longitudinally moves on the cart; the lifting material fork comprises a fixed support, a sliding door frame, a material fork, an oil cylinder, a chain wheel and a chain, wherein the fixed support is vertically arranged at the front end of the trolley; the material fork is fixed at the lower end of the material frame and is driven by the oil cylinder to move up and down.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123297809.XU CN216688226U (en) | 2021-12-24 | 2021-12-24 | Double-station gas box type furnace group tempering production line |
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| CN202123297809.XU CN216688226U (en) | 2021-12-24 | 2021-12-24 | Double-station gas box type furnace group tempering production line |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116042990A (en) * | 2022-12-19 | 2023-05-02 | 德亚炉业科技江苏有限公司 | Environment-friendly high-automation forklift box-type quenching furnace |
| CN116219139A (en) * | 2022-12-19 | 2023-06-06 | 德亚炉业科技江苏有限公司 | Environment-friendly high-automation forklift box type feeding device for quenching furnace |
| CN116837198A (en) * | 2023-09-01 | 2023-10-03 | 江苏联拓工业炉科技有限公司 | Anti-leakage gas quenching furnace with heat recovery function |
-
2021
- 2021-12-24 CN CN202123297809.XU patent/CN216688226U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116042990A (en) * | 2022-12-19 | 2023-05-02 | 德亚炉业科技江苏有限公司 | Environment-friendly high-automation forklift box-type quenching furnace |
| CN116219139A (en) * | 2022-12-19 | 2023-06-06 | 德亚炉业科技江苏有限公司 | Environment-friendly high-automation forklift box type feeding device for quenching furnace |
| CN116042990B (en) * | 2022-12-19 | 2023-11-14 | 德亚炉业科技江苏有限公司 | Environment-friendly high-automation forklift box-type quenching furnace |
| CN116219139B (en) * | 2022-12-19 | 2023-11-21 | 德亚炉业科技江苏有限公司 | Environment-friendly high-automation forklift box type feeding device for quenching furnace |
| CN116837198A (en) * | 2023-09-01 | 2023-10-03 | 江苏联拓工业炉科技有限公司 | Anti-leakage gas quenching furnace with heat recovery function |
| CN116837198B (en) * | 2023-09-01 | 2023-11-10 | 江苏联拓工业炉科技有限公司 | Anti-leakage gas quenching furnace with heat recovery function |
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