阅读说明：本技术 一种用于裂解炉管原位涂层加工的热处理炉及热处理方法 (Heat treatment furnace and heat treatment method for in-situ coating processing of cracking furnace tube ) 是由 徐梓丹 严德双 李彬 于 2021-09-09 设计创作，主要内容包括：本发明公开了一种用于裂解炉管原位涂层加工的热处理炉及热处理方法,属于热处理炉技术领域,包括热处理炉本体,热处理炉本体为内腔中空的环型结构,且热处理炉本体内腔壁铺设有环形加热管组件,启动旋转电机带动输出转轴旋转进而带动旋转环在热处理炉本体内部旋转,从而带动工件放置架在热处理炉本体内部进行旋转,旋转至档杆处工件放置架与档杆撞击使其工件放置架倾斜从而处理后的工件落入至V型下料板体上,将冷却液连接泵连通冷却液箱启动冷却液连接泵将冷却液抽入至喷洒盘进行喷洒对工件进行急速降温处理并通过冷却液回收仓收集冷却液。(The invention discloses a heat treatment furnace and a heat treatment method for in-situ coating processing of a cracking furnace tube, belonging to the technical field of heat treatment furnaces, and comprising a heat treatment furnace body, wherein the heat treatment furnace body is of a ring-shaped structure with a hollow inner cavity, an annular heating tube assembly is laid on the inner cavity wall of the heat treatment furnace body, a rotary motor is started to drive an output rotating shaft to rotate so as to drive a rotating ring to rotate in the heat treatment furnace body, so that a workpiece placing frame is driven to rotate in the heat treatment furnace body, the workpiece placing frame is rotated to a stop rod position and collides with the stop rod so that the workpiece placing frame is inclined, so that the processed workpiece falls into a V-shaped blanking plate body, a cooling liquid connecting pump is communicated with a cooling liquid tank, a cooling liquid connecting pump is started to pump cooling liquid to a spraying disc to spray the workpiece, and the cooling liquid is collected through a cooling liquid recovery bin.)

1. A heat treatment furnace for in-situ coating processing of a cracking furnace tube is characterized in that: including heat treatment furnace body (3), heat treatment furnace body (3) are the hollow loop configuration in inner chamber, and heat treatment furnace body (3) inner chamber wall has laid annular heating pipe subassembly, fixed disk (7) are installed through first connecting dead lever (6) to heat treatment furnace body (3) inner wall, swivel (8) have been inserted to one side of heat treatment furnace body (3), the rotatory drive subassembly that can drive rotatory ring (8) rotation is installed to the one end of fixed disk (7), the inboard that rotatory ring (8) are located heat treatment furnace body (3) is equipped with work piece rack subassembly, feed inlet (31) and be equipped with feeding inert gas shielding door subassembly above feed inlet (31) at this side of heat treatment furnace body (3) have been seted up to one side below of heat treatment furnace body (3), discharge gate (37) have been seted up to the opposite side below of heat treatment furnace body (3) and be equipped with inert gas shielding door subassembly above discharge gate (37) at this side of heat treatment furnace body (3) A door assembly, a side limiting fixing plate (1) is arranged at one side of the heat treatment furnace body (3) close to the feed inlet (31), a workpiece conveying assembly is arranged at the inner side of the side limiting fixing plate (1), a side fixing plate (19) is arranged at the inner side of the side limiting fixing plate (1) and below the workpiece conveying assembly, a cross-shaped limiting sliding chute (21) is arranged at the middle part of the inner side of the side fixing plate (19), a cross-shaped sliding block (20) capable of sliding at the inner side of the cross-shaped limiting sliding chute (21) is inserted into the inner side of the cross-shaped limiting sliding chute (21), a linkage I-shaped wheel transmission assembly is arranged between the outer side of the side limiting fixing plate (1) and the workpiece conveying assembly, a linkage hinge rod assembly capable of driving the cross-shaped sliding block (20) to slide at the inner side of the cross-shaped limiting sliding chute (21) is arranged between the linkage I-shaped wheel transmission assembly and the cross-shaped sliding block (20), a material guide plate (34) capable of being inserted into the feed inlet (31) is arranged at the top of the cross-shaped sliding block (20), heat treating furnace body (3) and being located ejection of compact inert gas shield door subassembly top and install coolant liquid spraying assembly, support frame (5) are installed to the bottom of heat treating furnace body (3), V type unloading plate body (11) are installed through L type bracing piece in the middle part of one side of support frame (5), and be equipped with coolant liquid recovery storehouse (2) below V type unloading plate body (11), be equipped with the leading-in valve subassembly of inert gas on heat treating furnace body (3), just be close to discharge gate (37) department at heat treating furnace body (3) cavity inner wall and install shelves pole (39).

2. The heat treatment furnace for the in-situ coating processing of the cracking furnace tube as claimed in claim 1, wherein: the annular heating pipe assembly comprises a first annular heating pipe (9) and a second annular heating pipe (10), a heat preservation layer is laid on the inner wall of the cavity of the heat treatment furnace body (3), the first annular heating pipe (9) is laid on the inner wall of the cavity of the heat treatment furnace body (3) far away from the circle center, and the second annular heating pipe (10) is laid on the inner wall of the cavity of the heat treatment furnace body (3) close to the circle center.

3. The heat treatment furnace for the in-situ coating processing of the cracking furnace tube as claimed in claim 2, wherein: the rotary driving assembly comprises a rotary motor (29), an output rotating shaft (28) and a second connecting and fixing rod (27), the rotary motor (29) is installed at one end of the fixed disc (7), the output rotating shaft (28) is installed at the output end of the rotary motor (29), the second connecting and fixing rod (27) is installed on the outer side of the output rotating shaft (28) at an equal angle, and the other end of the second connecting and fixing rod (27) is installed on the inner wall of the rotary ring (8).

4. The heat treatment furnace for in-situ coating processing of the cracking furnace tube as claimed in claim 3, wherein: the workpiece placing rack assembly comprises an adjusting rotating rod, a workpiece placing rack (30) and a connecting rope, the adjusting rotating rod is installed on the inner side, located on the heat treatment furnace body (3), of the rotating ring (8) through a bearing, the connecting rope is fixed on the outer side of the adjusting rotating rod, and the workpiece placing rack (30) is installed at the bottom end of the connecting rope.

5. The heat treatment furnace for in-situ coating processing of the cracking furnace tube as claimed in claim 4, wherein: the feeding inert gas shielding door assembly comprises a feeding gas outlet disc (32) and a feeding inert gas connecting valve (33), the feeding gas outlet disc (32) is arranged on the outer side of the heat treatment furnace body (3) and above the feeding hole (31), and the top of the feeding gas outlet disc (32) is communicated with the feeding inert gas connecting valve (33);

the discharging inert gas shielding door assembly comprises a discharging inert gas connecting valve (23) and a discharging gas outlet disc (38), the discharging inert gas connecting valve (23) is installed on the outer side of the heat treatment furnace body (3) and located above the discharging port (37), and the top of the discharging inert gas connecting valve (23) is communicated with the discharging gas outlet disc (38).

6. The heat treatment furnace for in-situ coating processing of the cracking furnace tube as claimed in claim 5, wherein: work piece conveying subassembly includes driven conveying roller (24), material loading conveyer belt (12), initiative conveying roller (22) and conveying motor (14), driven conveying roller (24) are installed through first support bull stick to side limit fixed plate (1) inboard top tip, initiative conveying roller (22) are installed through second support bull stick to side limit fixed plate (1) inboard top another tip, the outside cover of initiative conveying roller (22) and driven conveying roller (24) is equipped with material loading conveyer belt (12), side limit fixed plate (1) outside is located initiative conveying roller (22) and corresponds the department and installs conveying motor (14) fixed with the second support bull stick.

7. The heat treatment furnace for in-situ coating processing of the cracking furnace tube as claimed in claim 6, wherein: linkage industry type wheel drive assembly includes initiative conveying industry type wheel (15), conveyer (26) and driven conveying industry type wheel (25), initiative conveying industry type wheel (15) are installed and are supported the one end department that the bull stick runs through side limit fixed plate (1) at the second, and the below in side limit fixed plate (1) outside is equipped with driven conveying industry type wheel (25), the outside cover of driven conveying industry type wheel (25) and initiative conveying industry type wheel (15) is equipped with conveyer (26), install the connecting rod that runs through side limit fixed plate (1) on driven conveying industry type wheel (25), and install the articulated pole subassembly of linkage on the connecting rod.

8. The heat treatment furnace for in-situ coating processing of the cracking furnace tube as claimed in claim 7, wherein: the linkage hinge rod assembly comprises a rotating disc (16), a rotating rod (17) and a hinge rod (18), the rotating disc (16) is installed on a connecting rod located on the inner side of the side limiting fixing plate (1), the rotating rod (17) is installed on the outer side, close to the edge, of the rotating disc (16), the hinge rod (18) is installed on the outer side of the rotating rod (17) through a bearing, and the other end of the hinge rod (18) is hinged to the side lower portion of the cross-shaped sliding block (20).

9. The heat treatment furnace for in-situ coating processing of the cracking furnace tube as claimed in claim 8, wherein: the cooling liquid spraying assembly comprises a spraying disc (36), an L-shaped connecting rod and a cooling liquid connecting pump (35), the L-shaped connecting rod is installed at the position, close to the discharging and gas outlet disc (38), below the outer side of the heat treatment furnace body (3), the end part of the L-shaped connecting rod is communicated with the spraying disc (36), and one side of the L-shaped connecting rod is communicated with the cooling liquid connecting pump (35);

the inert gas leading-in valve component comprises an inert gas inlet valve (13) and an inert gas outlet valve (4), the inert gas inlet valve (13) is communicated with the lower side of the heat treatment furnace body (3), the inert gas outlet valve (4) is communicated with the top side of the heat treatment furnace body (3), and a plurality of groups of through holes are formed in the V-shaped blanking plate body (11).

10. The heat treatment furnace heat treatment method for the in-situ coating processing of the cracking furnace tube as claimed in claim 9, wherein: the method comprises the following steps:

step 1: placing the workpieces on the top of the feeding conveyor belt (12) at a certain distance and starting a conveying motor (14) for conveying;

step 2: the workpiece can be fed into the feeding hole (31) through the transmission of the feeding conveyor belt (12), and the driving transmission molding wheel (15) is driven to move under the operation of the transmission motor (14);

and step 3: the driving transmission die wheel (15) drives the transmission belt (26) to move, the transmission belt (26) drives the driven transmission die wheel (25) to rotate, and the driven transmission die wheel (25) drives the rotating disc (16) to rotate;

and 4, step 4: the rotating rod (17) is driven to rotate by the rotating disk (16), and then the hinged rod (18) is driven to drive the cross-shaped sliding block (20) to reciprocate on the side fixing plate (19) so as to enable the material guide plate (34) to reciprocate and insert into the feeding hole (31) and withdraw from the feeding hole (31);

and 5: the feeding hole (31) is retracted through the insertion of the material guide plate (34) to lead the material guide plate to be matched with a workpiece, and the workpiece is guided into the cavity of the heat treatment furnace body (3) and falls onto the workpiece placing rack (30);

step 6: before high-temperature treatment, the inert gas inlet valve (13) is communicated with the inert gas tank, then the cavity of the heat treatment furnace body (3) is filled with inert gas, and air can be discharged from the inert gas discharge valve (4);

and 7: the discharge inert gas connecting valve (23) and the feed inert gas connecting valve (33) are communicated with an inert gas tank, and inert gas is continuously released to form an inert gas barrier;

and 8: the inner cavity of the heat treatment furnace body (3) is heated at high temperature through the first annular heating pipe (9) and the second annular heating pipe (10), and the rotating motor (29) is started to drive the output rotating shaft (28) to rotate so as to drive the rotating ring (8) to rotate in the heat treatment furnace body (3), so that the workpiece placing frame (30) is driven to rotate in the heat treatment furnace body (3);

and step 9: the workpiece placing rack (30) is rotated to the position of the stop lever (39) and collides with the stop lever (39) to enable the workpiece placing rack (30) to be inclined, so that the processed workpiece falls onto the V-shaped blanking plate body (11);

step 10: the cooling liquid connecting pump (35) is communicated with the cooling liquid tank, the cooling liquid connecting pump (35) is started to pump the cooling liquid into the spraying disc (36) to spray the cooling liquid to rapidly cool the workpiece, and the cooling liquid is collected through the cooling liquid recovery bin (2).

Technical Field

The invention relates to a heat treatment furnace, in particular to a heat treatment furnace for in-situ coating processing of a cracking furnace tube, and also relates to a heat treatment method of the heat treatment furnace, in particular to a heat treatment method of the heat treatment furnace for in-situ coating processing of the cracking furnace tube, belonging to the technical field of heat treatment furnaces.

Background

The heat treatment furnace is a general term for an industrial furnace for performing various metal heat treatments on a metal workpiece, and the temperature is generally lower than that of a heating furnace, and various types of heating furnaces can be used as the heat treatment furnace.

The heat treatment furnaces are mostly heated by gas fuel, some heat treatment furnaces are heated by electricity in order to accurately control the furnace temperature, the modern heat treatment (especially chemical heat treatment) process is gradually complicated, the forms of the heat treatment furnaces are various, and for the continuous heat treatment process, an appropriate continuous heat treatment furnace is required to be equipped; for cyclic thermal processes, a forced-circulation controlled atmosphere is used and the operation of the furnace is mechanized and automated.

The heat treatment furnace in the prior art is often in a linear structure, the structure of the heat treatment furnace is that a workpiece needing heat treatment is conveyed into a heating treatment furnace through a drivable placing plate and then is subjected to high-temperature heat treatment, the heat treatment mode has the disadvantages of low efficiency due to the first non-continuous operation, poor workpiece modification effect due to the fact that discharging cannot be subjected to even temperature reduction treatment, and the linear heat treatment furnace occupies a large space.

Disclosure of Invention

The invention mainly aims to provide a heat treatment furnace and a heat treatment method for in-situ coating processing of a cracking furnace tube, wherein a workpiece and a workpiece are placed on the top of a feeding conveyor belt at a certain interval and are conveyed by starting a conveying motor, the workpiece can be fed into a feeding port by the conveying of the feeding conveyor belt, a driving conveying I-shaped wheel is driven to move under the operation of the conveying motor, a conveying belt is driven to move by the driving conveying I-shaped wheel, a driven conveying I-shaped wheel is driven to rotate by the conveying belt, a rotating disc is driven to rotate by the driven conveying I-shaped wheel, a rotating rod is driven to rotate by the rotating disc, a hinged rod is driven to drive a cross-shaped sliding block to reciprocate on a side fixing plate so as to enable a material guide plate of the cross-shaped sliding block to be inserted to the feeding port back and forth and withdraw from the feeding port, the material guide plate is inserted into and withdrawn from the feeding port to enable the workpiece to be guided into a cavity of a heat treatment furnace body to fall onto a workpiece placing rack, before high-temperature treatment, an inert gas inlet valve is communicated with an inert gas tank, then a cavity of a heat treatment furnace body is filled with inert gas, air can be exhausted from an inert gas exhaust valve, an exhaust inert gas connecting valve and a feed inert gas connecting valve are communicated with the inert gas tank, the inert gas is continuously released to form an inert gas barrier, the inner cavity of the heat treatment furnace body is heated at high temperature through a first annular heating pipe and a second annular heating pipe, a rotating motor is started to drive an output rotating shaft to rotate so as to drive a rotating ring to rotate inside the heat treatment furnace body, so that a workpiece placing frame is driven to rotate inside the heat treatment furnace body, the workpiece placing frame is rotated until a blocking rod is collided with the blocking rod so that the processed workpiece falls onto a V-shaped blanking plate body, a cooling liquid connecting pump is communicated with a cooling liquid tank, a cooling liquid connecting pump is started to pump cooling liquid to a spraying disc to spray the workpiece, and the workpiece is rapidly cooled through cold The cooling liquid is collected by the cooling liquid recovery bin.

The purpose of the invention can be achieved by adopting the following technical scheme:

a heat treatment furnace for in-situ coating processing of a cracking furnace tube comprises a heat treatment furnace body, wherein the heat treatment furnace body is of a hollow annular structure, an annular heating tube assembly is laid on the inner cavity wall of the heat treatment furnace body, a fixed disc is installed on the inner wall of the heat treatment furnace body through a first connecting fixed rod, a rotating ring is inserted into one side of the heat treatment furnace body, a rotating driving assembly capable of driving the rotating ring to rotate is installed at one end of the fixed disc, a workpiece placing frame assembly is arranged at the inner side, located on the heat treatment furnace body, of the rotating ring, a feeding hole is formed in the lower portion of one side of the heat treatment furnace body, a feeding inert gas shielding door assembly is arranged above the feeding hole in the side of the heat treatment furnace body, a discharging hole is formed in the lower portion of the other side of the heat treatment furnace body, a discharging inert gas shielding door assembly is arranged above the discharging hole in the side of the heat treatment furnace body, and a side limiting fixed plate is arranged on the side, close to the feeding hole in the side of the heat treatment furnace body, a workpiece conveying assembly is arranged on the inner side of the side limiting fixing plate, a side fixing plate is arranged on the inner side of the side limiting fixing plate and is positioned below the workpiece conveying assembly, a cross-shaped limiting sliding groove is formed in the middle of the inner side of the side fixing plate, a cross-shaped sliding block capable of sliding on the inner side of the cross-shaped limiting sliding groove is inserted into the inner side of the cross-shaped limiting sliding groove, a linkage I-shaped wheel transmission assembly is arranged between the outer side of the side limiting fixing plate and the workpiece conveying assembly, a linkage hinge rod assembly capable of driving the cross-shaped sliding block to slide on the inner side of the cross-shaped limiting sliding groove is arranged between the linkage I-shaped wheel transmission assembly and the cross-shaped sliding block, a material guide plate capable of being inserted into a material inlet is arranged at the top of the cross-shaped sliding block, a cooling liquid spraying assembly is arranged above the discharging inert gas shielding door assembly of the heat treatment furnace body, a support frame is arranged at the bottom of the heat treatment furnace body, and a V-shaped blanking plate body is arranged in the middle of one side of the support frame through an L-shaped support rod, and a cooling liquid recovery bin is arranged below the V-shaped blanking plate body, an inert gas leading-in valve component is arranged on the heat treatment furnace body, and a blocking rod is arranged on the inner wall of the cavity of the heat treatment furnace body and close to the discharge hole.

Preferably, the annular heating pipe assembly comprises a first annular heating pipe and a second annular heating pipe, a heat insulation layer is laid on the inner wall of the cavity of the heat treatment furnace body, the first annular heating pipe is laid on the inner wall of the cavity of the heat treatment furnace body far away from the circle center, and the second annular heating pipe is laid on the inner wall of the cavity of the heat treatment furnace body close to the circle center.

Preferably, the rotary driving assembly comprises a rotary motor, an output rotating shaft and a second connecting fixing rod, the rotary motor is installed at one end of the fixing disc, the output rotating shaft is installed at the output end of the rotary motor, the second connecting fixing rod is installed on the outer side of the output rotating shaft at an equal angle, and the other end of the second connecting fixing rod is installed on the inner wall of the rotating ring.

Preferably, the workpiece placing frame assembly comprises an adjusting rotating rod, a workpiece placing frame and a connecting rope, the adjusting rotating rod is installed on the inner side, located on the heat treatment furnace body, of the rotating ring through a bearing, the connecting rope is fixed on the outer side of the adjusting rotating rod, and the workpiece placing frame is installed at the bottom end of the connecting rope.

Preferably, the feeding inert gas shielding door assembly comprises a feeding gas outlet disc and a feeding inert gas connecting valve, the feeding gas outlet disc is arranged on the outer side of the heat treatment furnace body above the feeding hole, and the top of the feeding gas outlet disc is communicated with the feeding inert gas connecting valve;

the discharging inert gas shielding door assembly comprises a discharging inert gas connecting valve and a discharging gas outlet disc, the discharging inert gas connecting valve is arranged above the discharging port on the outer side of the heat treatment furnace body, and the top of the discharging inert gas connecting valve is communicated with the discharging gas outlet disc.

Preferably, the workpiece conveying assembly comprises a driven conveying roller, a feeding conveying belt, a driving conveying roller and a conveying motor, the driven conveying roller is installed at the end part above the inner side of the side limiting fixing plate through a first supporting rotating rod, the driving conveying roller is installed at the other end part above the inner side of the side limiting fixing plate through a second supporting rotating rod, the feeding conveying belt is sleeved on the outer side of the driving conveying roller and the outer side of the driven conveying roller, and the conveying motor fixed with the second supporting rotating rod is installed at the position, corresponding to the driving conveying roller, of the outer side of the side limiting fixing plate.

Preferably, the linkage i-shaped wheel transmission assembly comprises a driving transmission i-shaped wheel, a transmission belt and a driven transmission i-shaped wheel, the driving transmission i-shaped wheel is installed at one end, penetrating through the side limiting fixing plate, of the second supporting rotating rod, the driven transmission i-shaped wheel is arranged below the outer side of the side limiting fixing plate, the transmission belt is sleeved on the driven transmission i-shaped wheel and the outer side of the driving transmission i-shaped wheel, a connecting rod penetrating through the side limiting fixing plate is installed on the driven transmission i-shaped wheel, and the linkage hinge rod assembly is installed on the connecting rod.

Preferably, the linkage hinge rod subassembly includes rotary disk, bull stick and hinge bar, and the rotary disk is installed to the connecting rod that is located side limit fixed plate inboard, and the outside of rotary disk is close to limit portion department and installs the bull stick, and the hinge bar is installed through the bearing in the outside of bull stick, and the other end of hinge bar articulates in the side below department of cross slider.

Preferably, the cooling liquid spraying assembly comprises a spraying disc, an L-shaped connecting rod and a cooling liquid connecting pump, the L-shaped connecting rod is arranged below the outer side of the heat treatment furnace body and close to the discharging gas outlet disc, the end part of the L-shaped connecting rod is communicated with the spraying disc, and one side of the L-shaped connecting rod is communicated with the cooling liquid connecting pump;

the inert gas leading-in valve component comprises an inert gas inlet valve and an inert gas outlet valve, the inert gas inlet valve is communicated with the lower side of the heat treatment furnace body, the inert gas outlet valve is communicated with the top side of the heat treatment furnace body, and a plurality of groups of through holes are formed in the V-shaped blanking plate body.

A heat treatment method of a heat treatment furnace for in-situ coating processing of a cracking furnace tube comprises the following steps:

step 1: placing the workpieces on the top of the feeding conveyor belt at a certain distance and starting a conveying motor to convey the workpieces;

step 2: the workpiece can be conveyed into the feeding port through the conveying of the feeding conveying belt, and the driving conveying I-shaped wheel is driven to move under the operation of the conveying motor;

and step 3: the driving transmission I-shaped wheel drives the transmission belt to move, the transmission belt drives the driven transmission I-shaped wheel to rotate, and the driven transmission I-shaped wheel drives the rotating disc to rotate;

and 4, step 4: the rotating rod is driven to rotate through the rotating disk, and then the hinge rod is driven to drive the cross-shaped sliding block to reciprocate on the side fixing plate so that the material guide plate is inserted to the feeding hole back and forth and withdrawn from the feeding hole;

and 5: the feeding hole is withdrawn through the insertion of the material guide plate to lead the material guide plate to be matched with a workpiece, and the workpiece is guided into the cavity of the heat treatment furnace body and falls onto the workpiece placing frame;

step 6: before high-temperature treatment, the inert gas inlet valve is communicated with the inert gas tank, then the cavity of the heat treatment furnace body is filled with inert gas, and air can be discharged from the inert gas discharge valve;

and 7: communicating the discharge inert gas connecting valve and the feed inert gas connecting valve with an inert gas tank, and continuously releasing inert gas to form an inert gas barrier;

and 8: the inner cavity of the heat treatment furnace body is heated at a high temperature through the first annular heating pipe and the second annular heating pipe, and the rotating motor is started to drive the output rotating shaft to rotate so as to drive the rotating ring to rotate in the heat treatment furnace body, so that the workpiece placing frame is driven to rotate in the heat treatment furnace body;

and step 9: the workpiece placing frame is rotated to the position of the blocking rod and collides with the blocking rod to enable the workpiece placing frame to incline, so that the processed workpiece falls onto the V-shaped blanking plate body;

step 10: and the cooling liquid connecting pump is communicated with the cooling liquid tank, the cooling liquid connecting pump is started to pump the cooling liquid into the spraying disc for spraying, the workpiece is rapidly cooled and treated, and the cooling liquid is collected through the cooling liquid recovery bin.

The invention has the beneficial technical effects that:

the invention provides a heat treatment furnace and a heat treatment method for in-situ coating processing of a cracking furnace tube, wherein a workpiece and a workpiece are arranged on the top of a feeding conveyor belt at a certain interval and are conveyed by starting a conveying motor, the workpiece can be fed into a feeding port through the conveying of the feeding conveyor belt, a driving conveying I-shaped wheel is driven to move under the operation of the conveying motor, the driving conveying I-shaped wheel drives a conveying belt to move, then the conveying belt drives a driven conveying I-shaped wheel to rotate, the driven conveying I-shaped wheel drives a rotating disc to rotate, the rotating disc drives a rotating rod to rotate, and then a hinged rod is driven to drive a cross-shaped sliding block to reciprocate on a side fixing plate so as to enable a material guide plate of the cross-shaped sliding block to be inserted into the feeding port back and forth and back out of the feeding port, and the material guide plate is guided into a cavity of a heat treatment furnace body to fall onto a workpiece placing rack through the insertion and the feeding port back and back out of the feeding port, before high-temperature treatment, an inert gas inlet valve is communicated with an inert gas tank, then a cavity of a heat treatment furnace body is filled with inert gas, air can be exhausted from an inert gas exhaust valve, an exhaust inert gas connecting valve and a feed inert gas connecting valve are communicated with the inert gas tank, the inert gas is continuously released to form an inert gas barrier, the inner cavity of the heat treatment furnace body is heated at high temperature through a first annular heating pipe and a second annular heating pipe, a rotating motor is started to drive an output rotating shaft to rotate so as to drive a rotating ring to rotate inside the heat treatment furnace body, so that a workpiece placing frame is driven to rotate inside the heat treatment furnace body, the workpiece placing frame is rotated until a blocking rod is collided with the blocking rod so that the processed workpiece falls onto a V-shaped blanking plate body, a cooling liquid connecting pump is communicated with a cooling liquid tank, a cooling liquid connecting pump is started to pump cooling liquid to a spraying disc to spray the workpiece, and the workpiece is rapidly cooled through cold The cooling liquid is collected by the cooling liquid recovery bin.

Drawings

FIG. 1 is a side cross-sectional view of the apparatus of a preferred embodiment of a furnace and method for heat treatment of in-situ coatings for cracking furnace tubes in accordance with the present invention;

FIG. 2 is a schematic perspective view of a first perspective view of a feed assembly of a preferred embodiment of a thermal processing furnace and a thermal processing method for in-situ coating processing of cracking furnace tubes in accordance with the present invention;

FIG. 3 is a schematic perspective view of a second perspective view of a feed assembly of a preferred embodiment of a thermal processing furnace and a thermal processing method for in-situ coating processing of cracking furnace tubes in accordance with the present invention;

FIG. 4 is a perspective view of the heat treatment furnace chamber and the rotating assembly of the preferred embodiment of the heat treatment furnace and the heat treatment method for in-situ coating of the cracking furnace tube according to the present invention;

FIG. 5 is an enlarged view of the structure at the position b of a preferred embodiment of the heat treatment furnace and the heat treatment method for the in-situ coating processing of the cracking furnace tube according to the invention;

FIG. 6 is an enlarged view of the structure at the position c of a preferred embodiment of the heat treatment furnace and the heat treatment method for the in-situ coating processing of the cracking furnace tube according to the invention;

FIG. 7 is an enlarged view of the structure at the position a of a preferred embodiment of the heat treatment furnace and the heat treatment method for the in-situ coating processing of the cracking furnace tube according to the invention.

In the figure: 1-side limiting fixed plate, 2-cooling liquid recovery bin, 3-heat treatment furnace body, 4-inert gas exhaust valve, 5-support frame, 6-first connecting fixed rod, 7-fixed plate, 8-rotating ring, 9-first annular heating pipe, 10-second annular heating pipe, 11-V-shaped blanking plate body, 12-feeding conveyor belt, 13-inert gas inlet valve, 14-conveying motor, 15-driving conveying type wheel, 16-rotating disk, 17-rotating rod, 18-hinging rod, 19-side fixed plate, 20-cross sliding block, 21-cross limiting sliding chute, 22-driving conveying roller, 23-discharging inert gas connecting valve, 24-driven conveying roller, 25-driven conveying type wheel, 26-a conveying belt, 27-a second connecting and fixing rod, 28-an output rotating shaft, 29-a rotating motor, 30-a workpiece placing rack, 31-a feeding hole, 32-a feeding and discharging plate, 33-a feeding inert gas connecting valve, 34-a material guide plate, 35-a cooling liquid connecting pump, 36-a spraying plate, 37-a discharging hole, 38-a discharging and discharging plate and 39-a blocking rod.

Detailed Description

In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail below with reference to the examples and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

As shown in fig. 1-7, the heat treatment furnace for processing the in-situ coating of the cracking furnace tube provided in this embodiment includes a heat treatment furnace body 3, the heat treatment furnace body 3 is a ring structure with a hollow inner cavity, and an annular heating tube assembly is laid on the inner cavity wall of the heat treatment furnace body 3, a fixing plate 7 is installed on the inner wall of the heat treatment furnace body 3 through a first connecting fixing rod 6, a rotating ring 8 is inserted into one side of the heat treatment furnace body 3, a rotation driving assembly capable of driving the rotating ring 8 to rotate is installed at one end of the fixing plate 7, a workpiece placing frame assembly is arranged on the inner side of the rotating ring 8 located in the heat treatment furnace body 3, a feeding port 31 is opened below one side of the heat treatment furnace body 3, a feeding inert gas shielding door assembly is arranged above the feeding port 31 on the side of the heat treatment furnace body 3, a discharging port 37 is opened below the other side of the heat treatment furnace body 3, and a discharging inert gas shielding door assembly is arranged above the discharging port 37 on the side of the heat treatment furnace body 3 The heat treatment furnace comprises a heat treatment furnace body 3, a side limiting fixing plate 1 is arranged at one side of the heat treatment furnace body 3 close to a feed inlet 31, a workpiece conveying assembly is arranged at the inner side of the side limiting fixing plate 1, a side fixing plate 19 is arranged at the inner side of the side limiting fixing plate 1 and below the workpiece conveying assembly, a cross-shaped limiting sliding groove 21 is formed in the middle of the inner side of the side fixing plate 19, a cross-shaped sliding block 20 capable of sliding at the inner side of the cross-shaped limiting sliding groove 21 is inserted into the inner side of the cross-shaped limiting sliding groove 21, a linkage I-shaped wheel transmission assembly is arranged between the outer side of the side limiting fixing plate 1 and the workpiece conveying assembly, a linkage hinge rod assembly capable of driving the cross-shaped sliding block 20 to slide at the inner side of the cross-shaped limiting sliding groove 21 is arranged between the linkage I-shaped wheel transmission assembly and the cross-shaped sliding block 20, a guide plate 34 capable of being inserted into the feed inlet 31 is arranged at the top of the cross-shaped sliding block 20, and a cooling liquid spraying assembly is arranged above a discharge inert gas shielding door assembly of the heat treatment furnace body 3, the bottom of the heat treatment furnace body 3 is provided with a support frame 5, the middle part of one side of the support frame 5 is provided with a V-shaped blanking plate body 11 through an L-shaped support rod, a cooling liquid recovery bin 2 is arranged below the V-shaped blanking plate body 11, the heat treatment furnace body 3 is provided with an inert gas leading-in valve component, and a blocking rod 39 is arranged on the inner wall of the cavity of the heat treatment furnace body 3 and is close to a discharge hole 37.

The workpieces are placed on the top of a feeding conveyor belt 12 at a certain interval and conveyed by starting a conveying motor 14, the workpieces can be fed into a feeding hole 31 by the conveying of the feeding conveyor belt 12, a driving conveying I-shaped wheel 15 is driven to move under the operation of the conveying motor 14, a conveying belt 26 is driven to move by the driving conveying I-shaped wheel 15, a driven conveying I-shaped wheel 25 is driven to rotate by the conveying belt 26, a rotating disc 16 is driven to rotate by the driven conveying I-shaped wheel 25, a rotating rod 17 is driven to rotate by the rotating disc 16, a hinged rod 18 is driven to drive a cross-shaped sliding block 20 to reciprocate on a side fixing plate 19 so that a material guide plate 34 of the cross-shaped sliding block is inserted into the feeding hole 31 back and forth from the feeding hole 31, and the material guide plate 34 is inserted into and withdrawn from the feeding hole 31 to guide the workpieces into a cavity of a heat treatment furnace body 3 to fall onto a workpiece placing frame 30, before high-temperature treatment, the inert gas inlet valve 13 is communicated with the inert gas tank, then the cavity of the heat treatment furnace body 3 is filled with inert gas, air can be discharged from the inert gas discharge valve 4, the discharge inert gas connecting valve 23 and the feed inert gas connecting valve 33 are communicated with the inert gas tank, and the inert gas is continuously released to form an inert gas barrier, the inner cavity of the heat treatment furnace body 3 is heated at high temperature through the first annular heating pipe 9 and the second annular heating pipe 10, the rotating motor 29 is started to drive the output rotating shaft 28 to rotate so as to drive the rotating ring 8 to rotate in the heat treatment furnace body 3, so that the workpiece placing frame 30 is driven to rotate in the heat treatment furnace body 3, the workpiece placing frame 30 is rotated until the blocking rod 39 collides with the blocking rod 39 to enable the workpiece placing frame 30 to incline, so that the treated workpiece falls onto the V-shaped blanking plate body 11, the cooling liquid connecting pump 35 is communicated with the cooling liquid tank, the cooling liquid connecting pump 35 is started to pump the cooling liquid into the spraying disc 36 for spraying, the workpiece is rapidly cooled, and the cooling liquid is collected through the cooling liquid recovery bin 2.

In this embodiment, the annular heating pipe assembly comprises a first annular heating pipe 9 and a second annular heating pipe 10, a heat preservation layer is laid on the inner wall of the cavity of the heat treatment furnace body 3, the first annular heating pipe 9 is laid on the inner wall of the cavity of the heat treatment furnace body 3 far away from the center of circle, and the second annular heating pipe 10 is laid on the inner wall of the cavity of the heat treatment furnace body 3 close to the center of circle.

The inner cavity of the heat treatment furnace body 3 is heated at high temperature through the first annular heating pipe 9 and the second annular heating pipe 10.

In this embodiment, the rotation driving assembly includes a rotation motor 29, an output shaft 28, and a second connecting and fixing rod 27, the rotation motor 29 is installed at one end of the fixed disk 7, the output shaft 28 is installed at the output end of the rotation motor 29, the second connecting and fixing rod 27 is installed at the outer side of the output shaft 28 at an equal angle, and the other end of the second connecting and fixing rod 27 is installed on the inner wall of the rotation ring 8.

The rotating motor 29 is started to drive the output rotating shaft 28 to rotate, so as to drive the rotating ring 8 to rotate in the heat treatment furnace body 3, and therefore the workpiece placing frame 30 is driven to rotate in the heat treatment furnace body 3.

In this embodiment, the workpiece placing frame assembly comprises an adjusting rotating rod, a workpiece placing frame 30 and a connecting rope, the adjusting rotating rod is installed on the inner side of the rotating ring 8 positioned on the heat treatment furnace body 3 through a bearing, the connecting rope is fixed on the outer side of the adjusting rotating rod, and the workpiece placing frame 30 is installed at the bottom end of the connecting rope.

In this embodiment, feeding inert gas shielding door assembly includes feeding air outlet disc 32 and feeding inert gas connecting valve 33, feeding air outlet disc 32 is installed to the position that is located feed inlet 31 top outside heat treatment furnace body 3, and feeding air outlet disc 32's top intercommunication has feeding inert gas connecting valve 33, discharging inert gas shielding door assembly includes discharging inert gas connecting valve 23 and discharging air outlet disc 38, discharging inert gas connecting valve 23 is installed to the position that is located discharge gate 37 top outside heat treatment furnace body 3 outside, and discharging inert gas connecting valve 23's top intercommunication has discharging air outlet disc 38.

The discharge inert gas connection valve 23 and the feed inert gas connection valve 33 are connected to an inert gas tank and continuously release inert gas to form an inert gas barrier.

In this embodiment, the workpiece conveying assembly includes a driven conveying roller 24, a feeding conveying belt 12, a driving conveying roller 22 and a conveying motor 14, the driven conveying roller 24 is installed at the upper end portion of the inner side of the side limiting fixing plate 1 through a first supporting rotating rod, the driving conveying roller 22 is installed at the other end portion of the inner side of the side limiting fixing plate 1 through a second supporting rotating rod, the feeding conveying belt 12 is sleeved on the outer sides of the driving conveying roller 22 and the driven conveying roller 24, the conveying motor 14 fixed with the second supporting rotating rod is installed at the position, corresponding to the driving conveying roller 22, on the outer side of the side limiting fixing plate 1, the linkage i-shaped wheel transmission assembly includes a driving conveying i-shaped wheel 15, a conveying belt 26 and a driven conveying i-shaped wheel 25, the driving conveying i-shaped wheel 15 is installed at one end, penetrating through the side limiting fixing plate 1, of the second supporting rotating rod, and the driven conveying i-shaped wheel 25 is installed below the outer side limiting fixing plate 1, the outside cover of driven conveying worker type wheel 25 and initiative conveying worker type wheel 15 is equipped with conveyer 26, install the connecting rod that runs through the spacing fixed plate 1 in side on the driven conveying worker type wheel 25, and install the linkage hinge bar subassembly on the connecting rod, the linkage hinge bar subassembly includes rotary disk 16, bull stick 17 and hinge bar 18, the rotary disk 16 is installed to the connecting rod that is located side spacing fixed plate 1 inboard, and the outside of rotary disk 16 is close to limit portion department and installs bull stick 17, hinge bar 18 is installed through the bearing in the outside of bull stick 17, the other end of hinge bar 18 articulates the side below department at cross slider 20.

The workpieces are placed on the top of the feeding conveyor belt 12 at a certain distance and the conveying motor 14 is started to convey, the workpiece can be fed into the feeding hole 31 by the conveying of the feeding conveyor belt 12, and the driving conveying mould wheel 15 is driven to move under the operation of the conveying motor 14, the driving transmission die wheel 15 drives the transmission belt 26 to move, and then the transmission belt 26 drives the driven transmission die wheel 25 to rotate, the driven transmission die wheel 25 drives the rotating disc 16 to rotate, the rotating disc 16 drives the rotating rod 17 to rotate, thereby driving the hinged rod 18 to drive the cross-shaped slide block 20 to reciprocate on the side fixing plate 19 so as to make the material guide plate 34 to reciprocate to insert into the feeding hole 31 and withdraw from the feeding hole 31, the feeding hole 31 is retracted through the insertion of the material guide plate 34, so that the material guide plate is guided into the cavity of the heat treatment furnace body 3 to fall onto the workpiece placing frame 30 in a matching manner.

In this embodiment, the cooling liquid spraying assembly includes a spraying disc 36, an L-shaped connecting rod and a cooling liquid connecting pump 35, the L-shaped connecting rod is installed below the outer side of the heat treatment furnace body 3 near the discharging and gas-discharging disc 38, the end of the L-shaped connecting rod is communicated with the spraying disc 36, and one side of the L-shaped connecting rod is communicated with the cooling liquid connecting pump 35;

the inert gas leading-in valve component comprises an inert gas inlet valve 13 and an inert gas outlet valve 4, the inert gas inlet valve 13 is communicated with the lower side of the heat treatment furnace body 3, the inert gas outlet valve 4 is communicated with the top side of the heat treatment furnace body 3, and a plurality of groups of through holes are formed in the V-shaped blanking plate body 11.

A heat treatment method of a heat treatment furnace for in-situ coating processing of a cracking furnace tube comprises the following steps:

step 1: placing the workpieces on the top of the feeding conveyor belt 12 at a certain distance and starting the conveying motor 14 for conveying;

step 2: the workpiece can be fed into the feeding hole 31 through the conveying of the feeding conveyor belt 12, and the driving conveying die wheel 15 is driven to move under the operation of the conveying motor 14;

and step 3: the driving transmission die wheel 15 drives the transmission belt 26 to move, the transmission belt 26 drives the driven transmission die wheel 25 to rotate, and the driven transmission die wheel 25 drives the rotating disc 16 to rotate;

and 4, step 4: the rotating disc 16 drives the rotating rod 17 to rotate, and then drives the hinge rod 18 to drive the cross-shaped slide block 20 to reciprocate on the side fixing plate 19 so that the material guide plate 34 of the cross-shaped slide block is inserted into the feed opening 31 to reciprocate back and forth and is withdrawn from the feed opening 31;

and 5: the feeding hole 31 is retracted through the insertion of the material guide plate 34, so that the material guide plate is guided into the cavity of the heat treatment furnace body 3 in a matched manner and falls onto the workpiece placing rack 30;

step 6: before high-temperature treatment, the inert gas inlet valve 13 is communicated with the inert gas tank, then the cavity of the heat treatment furnace body 3 is filled with inert gas, and air can be discharged from the inert gas discharge valve 4;

and 7: connecting the discharge inert gas connecting valve 23 and the feed inert gas connecting valve 33 with an inert gas tank, and continuously releasing inert gas to form an inert gas barrier;

and 8: the inner cavity of the heat treatment furnace body 3 is heated at a high temperature through the first annular heating pipe 9 and the second annular heating pipe 10, and the rotating motor 29 is started to drive the output rotating shaft 28 to rotate so as to drive the rotating ring 8 to rotate in the heat treatment furnace body 3, so that the workpiece placing frame 30 is driven to rotate in the heat treatment furnace body 3;

and step 9: the workpiece placing frame 30 is rotated to the position of the stop lever 39 and collides with the stop lever 39 to enable the workpiece placing frame 30 to incline, so that the processed workpiece falls onto the V-shaped blanking plate body 11;

step 10: the cooling liquid connecting pump 35 is communicated with the cooling liquid tank, the cooling liquid connecting pump 35 is started to pump the cooling liquid into the spraying disc 36 for spraying, the workpiece is rapidly cooled, and the cooling liquid is collected through the cooling liquid recovery bin 2.

The above are only further embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and its concept within the scope of the present invention.