CN220649089U - Mining middle groove duplex position removes cover formula preheating furnace - Google Patents
Mining middle groove duplex position removes cover formula preheating furnace Download PDFInfo
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- CN220649089U CN220649089U CN202322168203.9U CN202322168203U CN220649089U CN 220649089 U CN220649089 U CN 220649089U CN 202322168203 U CN202322168203 U CN 202322168203U CN 220649089 U CN220649089 U CN 220649089U
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- 238000005065 mining Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 241001669679 Eleotris Species 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 10
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 5
- 244000257782 Ipomoea triloba Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
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Abstract
The utility model relates to a mining middle groove double-station movable hood type preheating furnace, which is mainly used for preheating the mining middle groove before welding; the preheating furnace is mainly technically characterized by comprising a furnace table, a furnace body, a furnace door lifting mechanism, a guide cover, a fan assembly, a heating element, a travelling mechanism and a pneumatic sealing mechanism; the furnace platform is arranged in the middle of the furnace body through the embedded part, furnace doors are arranged on two sides of the furnace body in the moving direction, and the furnace doors are opened and closed through respective furnace door lifting mechanisms; the air guide sleeve is fixed in a hearth of the furnace body through bolts; the top of the furnace body is provided with a plurality of fan assemblies, and air flow is generated through the fan assemblies, so that heat generated by the heating element is conveyed to the lower part of the furnace body; the travelling mechanism is arranged at the bottom of the furnace body and is used for realizing the movement of the furnace body between the furnace platforms; the pneumatic sealing mechanisms are arranged on two sides of the bottom of the furnace body and used for sealing gaps between the furnace body and two sides of the furnace table, so that the energy leakage in the furnace is reduced, and the middle groove is fully preheated.
Description
Technical Field
The utility model relates to the technical field of mining equipment, in particular to a mining middle groove double-station movable hood type preheating furnace.
Background
The mining middle groove is formed by welding a baffle ledge, a shovel ledge, a middle plate and a bottom plate. In order to prolong the service life of the middle groove, the middle and bottom plates are made of high-strength steel generally, but the high-strength steel has larger carbon equivalent and large welding hardening tendency, so that the pre-welding preheating procedure is very important. At present, preheating before welding is mainly divided into local preheating and integral preheating, wherein the local preheating is regional preheating on a welding position required by a middle groove, and has the advantages of simple and convenient operation, but the effect of preheating before welding on crack initiation is not obvious due to the characteristics of short duration of local preheating peak temperature, high heat dissipation speed and the like. The integral preheating is to place the whole middle groove in a preheating furnace for a period of time, which is beneficial to slow cooling after the middle groove is welded and reduces the welding residual stress. At present, most preheating furnaces used for integral preheating are through type preheating furnaces, and workpieces are conveyed to a hearth for preheating through a transmission mechanism, but due to the fact that a middle groove of a mine is large in size, heavy in weight, complex in structure and the like, the transmission efficiency of the transmission mechanism is low; in addition, the sealing effect between the transmission mechanism and the furnace body is not ideal, which easily causes insufficient preheating of the middle groove and further influences the quality of the welding bead.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide the mining middle groove double-station movable hood type preheating furnace.
The utility model solves the technical problems by the following technical proposal:
a mining middle groove double-station movable hood type preheating furnace comprises a furnace table, a furnace body, a heating element, a furnace door lifting mechanism, a fan assembly and a guide hood; the preheating furnace is characterized by further comprising a pneumatic sealing mechanism and a travelling mechanism;
the furnace platform is arranged in the middle of the furnace body through the embedded part, furnace doors are arranged on two sides of the furnace body in the moving direction, and the furnace doors are opened and closed through respective furnace door lifting mechanisms; the air guide sleeve is fixed in a hearth of the furnace body through bolts; the top of the furnace body is provided with a plurality of fan assemblies, and air flow is generated through the fan assemblies, so that heat generated by the heating element is conveyed to the lower part of the furnace body; the travelling mechanism is arranged at the bottom of the furnace body and is used for realizing the movement of the furnace body between the furnace platforms; the pneumatic sealing mechanisms are arranged on two sides of the bottom of the furnace body and are used for sealing gaps between the furnace body and two sides of the furnace platform.
The travelling mechanism comprises a travelling frame, a driving wheel, a driving shaft, a gear motor, a driven wheel, a driven shaft, a guide rail and a sleeper; the walking frame is fixedly connected to the bottom of the furnace body through bolts; the driving shaft and the driven shaft respectively rotate, and two ends of the driving shaft and the driven shaft are arranged on the walking frame through bearings; the driving shaft and the driven shaft are respectively fixed with a driving wheel and a driven wheel through key connection; the speed reducing motor is fixedly connected with the furnace body through a bolt, and an output shaft of the speed reducing motor is fixedly connected with one end of the driving shaft through a coupler; the sleeper is connected with the guide rail through bolts, the sleeper is buried in the foundation, and the guide rail provides a travelling rail for the driving wheel and the driven wheel.
The pneumatic sealing mechanism comprises a sealing groove, a pneumatic cylinder and a pneumatic motor; the sealing grooves are hung at the bottoms of the two sides of the furnace body through bolts, and flexible sealing fillers are arranged in the sealing grooves; the input of pneumatic motor is connected with compressed air pipeline sealing connection, and pneumatic motor's output is connected with the input of pneumatic cylinder, and pneumatic cylinder's telescopic link can promote the elevating movement of seal groove.
The fan assembly comprises a motor, a fan seat and a small furnace cover; the small furnace cover is fixed on the top wall of the furnace body through a bolt and extends into the hearth of the furnace body; the fan is installed in the center department of little bell through the fan seat, and the axis of rotation of fan passes little bell, kuppe and the roof of furnace body, links firmly with the output shaft of motor, and the motor is fixed at the surface at furnace body top.
The furnace door lifting mechanism comprises a driving motor, a steel wire rope and a guide wheel, wherein the driving motor and the guide wheel are fixed on the top of the furnace body through bolts, the steel wire rope is wound on an output shaft of the driving motor, and the steel wire rope is sleeved on the guide wheel and fixedly connected with the furnace door.
Compared with the prior art, the utility model has the beneficial effects that: the bottom of the furnace body is provided with the travelling mechanism, the furnace body can move between the furnace platforms through the travelling mechanism, the difficulty of low transmission efficiency caused by large size and complex structure of the middle groove is overcome, and the preheating efficiency is high; the two sides of the bottom of the furnace body are provided with pneumatic sealing mechanisms, so that the gap between the furnace body and the two sides of the furnace table is sealed in the heating and heat preservation process, and the leakage of energy can be effectively reduced.
Drawings
FIG. 1 is a front view of the overall structure of the present utility model;
FIG. 2 is a side view of the overall structure of the present utility model;
FIG. 3 is a schematic view of the pneumatic sealing mechanism of the present utility model;
FIG. 4 is a schematic view of the walking mechanism of the present utility model;
FIG. 5 is a schematic view of a blower assembly of the present utility model;
in the figure, a furnace table is 1-; 2-a furnace body; 3-a furnace door lifting mechanism; 4-a diversion cover; 5-a fan assembly; 6-a heating element; 7-a travelling mechanism; 8-a pneumatic sealing mechanism; 9-a guide rail; 10-furnace door; 11-lining; 12-a middle trough; 13-guard rails; 14-sleeper; 15-a walking frame; 16-a driving wheel; 17-a driving shaft; 18-a gear motor; 19-driven wheel; 20-a driven shaft; 21-sealing the groove; 22-pneumatic cylinder; 23-a pneumatic motor; 24-driving a motor; 25-wire rope; 26-a guide wheel; 27-hanging rings; 28-an electric motor; 29-a fan; 30-a fan base; 31-small furnace cover; 32-a control cabinet.
Detailed Description
Specific examples of the present utility model are given below. The specific examples are provided only for further elaboration of the utility model and do not limit the scope of the claims of the present application.
The utility model provides a mining middle tank double-station mobile hood type preheating furnace (called preheating furnace for short, see fig. 1-5), which comprises a furnace table 1, a furnace body 2, a furnace door lifting mechanism 3, a guide hood 4, a fan assembly 5, a heating element 6, a travelling mechanism 7 and a pneumatic sealing mechanism 8;
the furnace platform 1 is fixed on the ground through an embedded part and is used for supporting a middle groove 12 which needs to be preheated; two furnace platforms 1 are arranged at the front and back of the moving direction of the furnace body 2, one furnace platform is preheated, and the other furnace platform can perform feeding and discharging operations; two guide rails 9 for installing the travelling mechanism 7 are arranged on two sides of the furnace platform 1, the guide rails 9 are connected to the sleeper 14 through bolts, and the sleeper 14 is embedded in the foundation; furnace doors 10 are arranged at two ends of the furnace body 2 in the running direction, and the furnace doors 10 finish lifting movement through respective furnace door lifting mechanisms 3 to realize the opening and closing of the furnace doors 10; the top of the furnace body 2 is also provided with a guardrail 13 for protecting maintenance personnel; the furnace body 2 is arranged on the guide rail 9 through the travelling mechanism 7, the furnace body 2 reciprocates on the guide rail 9 through the travelling mechanism 7, and the furnace platform 1 passes through the furnace door 10 and is arranged in the hearth of the furnace body 2; the pneumatic sealing mechanisms 8 are hoisted at two sides of the bottom of the furnace body 2 through bolts and are used for sealing gaps between the furnace platform 1 and two sides of the furnace body 2; the air guide sleeve 4 is U-shaped and is positioned in the hearth of the furnace body 2, and the opening of the air guide sleeve 4 faces downwards; a plurality of heating elements 6 are arranged on two sides of the furnace body 2 to provide heat for a hearth of the furnace body 2; a furnace lining 11 is arranged on the inner wall of the furnace body 2 and is used for protecting the leakage of hot air in the furnace; the top of the furnace body 2 is provided with a plurality of fan assemblies 5, air flow is generated through the fan assemblies 5, heat generated by the heating element 6 is conveyed to the lower part of a hearth of the furnace body 2, and the middle groove 12 is preheated.
The travelling mechanism 7 comprises a travelling frame 15, a driving wheel 16, a driving shaft 17, a gear motor 18, a driven wheel 19, a driven shaft 20, a guide rail 9 and a sleeper 14; the walking frame 15 is fixedly connected to the bottom of the furnace body 2 through bolts; the driving shaft 17 and the driven shaft 20 rotate respectively and pass through at both endsBearingMounted on the walking frame 15; the driving shaft 17 and the driven shaft 20 are respectively fixed with a driving wheel 16 and a driven wheel 19 through key connection; the gear motor 18 is fixedly connected with the furnace body 2 through a bolt, and an output shaft of the gear motor 18 is fixedly connected with one end of the driving shaft 17 through a coupler; the sleeper 14 is connected with the guide rail 9 by bolts,sleeper bearingBuried in the foundation, the guide rail provides a travelling rail for the driving wheel and the driven wheel; the rotation of the speed reducing motor 18 drives the driving shaft 17 to rotate, so as to drive the driving wheel 16 to rotate on the guide rail 9, and the movement of the furnace body 2 is completed;
the pneumatic sealing mechanism 8 comprises a sealing groove 21, a pneumatic cylinder 22 and a pneumatic motor 23; the sealing grooves 21 are hoisted at the bottoms of the two sides of the furnace body 2 through bolts, the sealing grooves 21 can move up and down relative to the furnace body 2, and flexible sealing fillers are arranged in the sealing grooves 21; the input end of the pneumatic motor 23 is connected with a compressed air pipeline in a sealing way, and the output end of the pneumatic motor 23 is connected with the input end of the pneumatic cylinder 22; the telescopic rod of the pneumatic cylinder 22 is fixedly connected with the walking frame 15 provided with the driving shaft 17 and the driven shaft 20 through bolts; the pneumatic motor 23 drives the telescopic rod of the pneumatic cylinder 22 to reciprocate, so that the telescopic rod of the pneumatic cylinder 22 pushes the sealing groove 21 to ascend and descend, and the sealing mechanism is opened and closed; the lifting of the seal groove 21 is controlled by a control cabinet 32 and is realized by adopting PLC control.
The furnace door lifting mechanism 3 comprises a driving motor 24, a steel wire rope 25 and a guide wheel 26; the driving motor 24 and the guide wheel 26 are fixed on the top of the furnace body 2 through bolts, a steel wire rope 25 is wound on an output shaft of the driving motor 24, and the steel wire rope 25 is sleeved on the guide wheel 26 and connected with a hanging ring 27 on the furnace door 10 through knots; the two sides of the furnace door 10 are provided with a plurality ofRoller wheelCorresponding positions on two sides of the furnace body 2 are provided with sliding rails matched with the rollers; the driving motor 24 works to drive the steel wire rope 25 to extend or shorten, so that the steel wire rope 25 pulls the furnace door 10 to descend or lift, and the furnace door 10 is closed and opened; the lifting of the oven door 10 is controlled by a control cabinet 32 and is realized by adopting PLC control.
The fan assembly 5 comprises a motor 28, a fan 29, a fan seat 30 and a small furnace cover 31; the small furnace cover 31 is fixed on the inner top wall of the furnace body 2 through bolts and extends into the hearth of the furnace body 2; the fan 29 is arranged at the center of the small furnace cover 31 through a fan base 30; the rotating shaft of the fan 29 passes through the small furnace cover 31, the air guide sleeve 4 and the top wall of the furnace body 2 and is fixedly connected with the output shaft of the motor 28 through a coupler, and the motor 28 is fixed on the outer surface of the top of the furnace body 2 through bolts; the motor 28 rotates to drive the fan 29 to rotate to generate air flow, so that heat generated by the heating element 6 is gathered from bottom to top along the inner wall of the air guide sleeve 4, and the gathered heat is blown to the middle groove 12 from top to bottom under the action of the fan 29 to preheat the middle groove 12;
the working principle and the working flow of the utility model are as follows:
in an initial state, the furnace door 10 of the preheating furnace is opened; placing the middle trough 12 on the oven table 1; then a speed reducing motor 18 is started to drive a travelling mechanism 7 to move on the guide rail 9, so that the furnace body 2 is driven to move towards the furnace platform 1 where the middle groove 12 is arranged; when the volume centers of the furnace body 2 and the furnace platform 1 are coincident, the middle groove 12 is arranged in the hearth of the furnace body 2, the preheating furnace door 10 is closed at the moment, and the gear motor 18 stops working; then starting the pneumatic cylinder 22, extending the telescopic rod of the pneumatic cylinder 22, moving the sealing groove 21 to the upper part of the furnace body under the action of the telescopic rod, and opening the pneumatic sealing mechanism 8; the heating element 6 is electrified to provide heat for the hearth, the motor 28 works to drive the fan 29 to rotate, and the heat at the upper part of the hearth is blown onto the middle groove 12 in a hot air mode to preheat the middle groove 12; when the middle groove 12 is heated in the hearth for a period of time and then reaches the aim of preheating, the pneumatic cylinder 22 is closed, the telescopic rod of the pneumatic cylinder 22 is shortened, the sealing groove 21 is driven to restore to the original position, and the pneumatic sealing mechanism 8 is closed; starting a driving motor 24 at the furnace door lifting mechanism 3 to drive the furnace door 10 to lift; the gear motor 18 continues to work to drive the furnace body 2 to move to the other furnace platform 1, and the preheating flow is repeated; a middle groove 12 after preheating is arranged on the furnace platform 1 after the furnace body 2 moves, and is hoisted to a welding station by a crane, so that the preheating of the whole middle groove 12 is finished;
the utility model is applicable to the prior art where it is not described.
Claims (3)
1. A mining middle groove double-station movable hood type preheating furnace comprises a furnace table, a furnace body, a heating element, a furnace door lifting mechanism, a fan assembly and a guide hood; the preheating furnace is characterized by further comprising a pneumatic sealing mechanism and a travelling mechanism; the furnace platform is arranged in the middle of the furnace body through the embedded part, furnace doors are arranged on two sides of the furnace body in the moving direction, and the furnace doors are opened and closed through respective furnace door lifting mechanisms; the air guide sleeve is fixed in a hearth of the furnace body through bolts; the top of the furnace body is provided with a plurality of fan assemblies, and air flow is generated through the fan assemblies, so that heat generated by the heating element is conveyed to the lower part of the furnace body; the travelling mechanism is arranged at the bottom of the furnace body and is used for realizing the movement of the furnace body between the furnace platforms; the pneumatic sealing mechanisms are arranged on two sides of the bottom of the furnace body and are used for sealing gaps between the furnace body and two sides of the furnace platform.
2. The mining middle tank double-station mobile hood type preheating furnace according to claim 1, wherein the traveling mechanism comprises a traveling frame, a driving wheel, a driving shaft, a speed reducing motor, a driven wheel, a driven shaft, a guide rail and a sleeper; the walking frame is fixedly connected to the bottom of the furnace body through bolts; the driving shaft and the driven shaft respectively rotate, and two ends of the driving shaft and the driven shaft are arranged on the walking frame through bearings; the driving shaft and the driven shaft are respectively fixed with a driving wheel and a driven wheel through key connection; the speed reducing motor is fixedly connected with the furnace body through a bolt, and an output shaft of the speed reducing motor is fixedly connected with one end of the driving shaft through a coupler; the sleeper is connected with the guide rail through bolts, the sleeper is buried in the foundation, and the guide rail provides a travelling rail for the driving wheel and the driven wheel.
3. The mining middle tank double-station mobile hood type preheating furnace according to claim 1, wherein the pneumatic sealing mechanism comprises a sealing groove, a pneumatic cylinder and a pneumatic motor; the sealing grooves are hung at the bottoms of the two sides of the furnace body through bolts, and flexible sealing fillers are arranged in the sealing grooves; the input end of the pneumatic motor is connected with the compressed air pipeline in a sealing way, the output end of the pneumatic motor is connected with the input end of the pneumatic cylinder, and the telescopic rod of the pneumatic cylinder pushes the lifting movement of the sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322168203.9U CN220649089U (en) | 2023-08-14 | 2023-08-14 | Mining middle groove duplex position removes cover formula preheating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322168203.9U CN220649089U (en) | 2023-08-14 | 2023-08-14 | Mining middle groove duplex position removes cover formula preheating furnace |
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| Publication Number | Publication Date |
|---|---|
| CN220649089U true CN220649089U (en) | 2024-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322168203.9U Active CN220649089U (en) | 2023-08-14 | 2023-08-14 | Mining middle groove duplex position removes cover formula preheating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220649089U (en) |
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2023
- 2023-08-14 CN CN202322168203.9U patent/CN220649089U/en active Active
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