CN112325628B

CN112325628B - Reduction furnace

Info

Publication number: CN112325628B
Application number: CN202011150784.8A
Authority: CN
Inventors: 于华锋; 任海霞; 刘胜利; 张聪聪
Original assignee: Hebei Xmf Tools Group Co ltd
Current assignee: Hebei Xmf Tools Group Co ltd
Priority date: 2020-10-24
Filing date: 2020-10-24
Publication date: 2022-11-11
Anticipated expiration: 2040-10-24
Also published as: CN112325628A

Abstract

The utility model relates to a reduction furnace, relate to the field of heating furnace equipment, it includes furnace body and boiler tube, the terminal post hole has been reserved on the inside fixed hot plate that is provided with of furnace body and the furnace body, the boiler tube runs through the furnace body setting, the boiler tube both ends all are located the furnace body outside, the boiler tube is close to and is provided with the feed gate on the lateral wall of self one end, the fixed first pneumatic cylinder that is used for with feed gate department material to the inside boiler tube department propelling movement of furnace body that is provided with on the terminal surface of boiler tube near feed gate one end, the boiler tube is kept away from feed gate one end and is provided with the buffer tube, buffer tube one end and boiler tube intercommunication, the other end is provided with out the discharge gate, the boiler tube is close to the fixed second pneumatic cylinder that is used for with material propelling movement to the buffer tube that is provided with and is used for controlling inside intercommunication or confined operating mechanism of buffer tube and boiler tube, the intercommunication has the hydrogen pipeline on the boiler tube. The method and the device have the advantages that the number of steps of workers participating in the reduction process is reduced, and the working safety of the workers is improved.

Description

Reduction furnace

Technical Field

The application relates to the field of heating furnaces, in particular to a reducing furnace.

Background

At present, the sintering and oxidation process of large metal materials in a high-temperature environment is very quick, hydrogen is gas with strong reducibility, and the hydrogen is used as reducing gas in a reducing furnace, so that the metal in the reducing furnace is effectively reduced.

In the related art, the reduction of metallurgical powder, metal, rare earth and other materials is mostly carried out by adopting a traditional kiln and a hydrogen reduction method, and the reduction reaction is usually carried out in a container, wherein the reduction reaction is an action opposite to the oxidation action. I.e. the effect of removing oxygen from the compound, e.g. hematite is reduced to magnetite and further to metal. Iron making is to reduce iron oxide into metallic iron by a manual method.

In view of the above-mentioned related art, the inventors considered that hydrogen is dangerous as a reducing gas, and had a drawback that a worker may take a reduced material at a dangerous time.

Disclosure of Invention

In order to improve that hydrogen has danger as reducing gas, there is dangerous defect when the workman takes the material that reduces and finish, this application provides a reducing furnace.

The reduction furnace provided by the application adopts the following technical scheme:

the utility model provides a reduction furnace, including furnace body and boiler tube, the terminal post hole has been reserved on the inside fixed hot plate that is provided with of furnace body and the furnace body, the boiler tube runs through the furnace body setting, the boiler tube both ends all are located the furnace body outside, be provided with the feed gate on the lateral wall that the boiler tube is close to self one end, the fixed first pneumatic cylinder that is used for with feed gate department material to the propelling movement of the inside boiler tube department of furnace body that is provided with on the terminal surface of boiler tube near feed gate one end, the boiler tube is kept away from feed gate one end and is provided with the buffer tube, buffer tube one end and boiler tube intercommunication, the other end is provided with out the discharge gate, the boiler tube is close to fixed the second pneumatic cylinder that is used for with material propelling movement to in the buffer tube that is provided with and is used for controlling inside intercommunication of buffer tube and boiler tube or confined on the boiler tube, the intercommunication has the hydrogen pipeline.

By adopting the technical scheme, materials are placed in the material container and placed in the furnace tube through the feeding door, the first hydraulic cylinder is started, the container containing the materials is pushed to a position close to the furnace body, the containers containing the materials are sequentially placed and pushed in, the hydrogen pipeline is used for conveying hydrogen required by reduction action in the furnace tube, the heating plate is connected with a power supply through the wiring terminal holes, the heating plate generates heat, the furnace tube positioned in the furnace body is heated, heat is provided for the reduction action, the feeding door is closed, and safe reduction reaction is carried out in the furnace tube; after the material reduction time in the furnace tube is met for the first time, a new container containing materials is placed in the furnace tube continuously through the feeding door and the first hydraulic cylinder, the materials which have completed the reduction reaction are pushed to the second hydraulic cylinder, the switch mechanism is opened, the second hydraulic cylinder sequentially pushes the materials which have completed the reduction into the buffer tube, a worker closes the switch mechanism and then safely takes the materials which have completed the reduction away from the discharging door, the switch mechanism is opened again to take the materials which have completed the reduction out safely, the worker only participates in the filling and taking out of the materials, the safety of the worker is further protected through the switch mechanism, and the effect of improving the working safety of the worker when the worker takes the materials which have completed the reduction away is achieved.

Optionally, be provided with the air-cooled subassembly on the boiler tube, the air-cooled subassembly includes air-cooled sleeve pipe and hair-dryer, and air-cooled sleeve pipe ring cover is on the boiler tube outer wall and both ends are run through by the boiler tube, and the air-cooled sleeve pipe is located between buffer tube and the furnace body, and air-cooled sleeve pipe one end and furnace body outer wall fixed connection, the other end comply with boiler tube length and extend to being close to buffer tube department, have seted up the air outlet on the air-cooled sleeve pipe, and the hair-dryer is fixed to be set up on the air-cooled sleeve pipe and the mouth of blowing is located the air-cooled sheathed tube insidely.

By adopting the technical scheme, the material has high temperature after passing through the reduction process, the heat on the furnace tube is taken away through the blower, and then the heat of the material in the furnace tube is reduced, so that the material after reduction can be carried conveniently.

Optionally, be provided with the water cooling module on the boiler tube, the water cooling module includes water-cooling sleeve pipe, inlet tube and outlet pipe, and water-cooling sleeve pipe ring cover is on the boiler tube and both ends are run through by the boiler tube, and the water-cooling sleeve pipe is located between buffer tube and the air-cooled sleeve pipe, and water-cooling sleeve pipe one end deviates from furnace body one end fixed connection with the air-cooled sleeve pipe, and the other end is followed boiler tube length direction and is extended to buffer tube department and leave the distance between the buffer tube, and inlet tube one end and water-cooling sleeve pipe bottom intercommunication, the other end and outside water source intercommunication, outlet pipe one end and water-cooling sleeve pipe top intercommunication, the other end and external recovery water source intercommunication.

Through adopting above-mentioned technical scheme, the material through the preliminary cooling of forced air cooling subassembly then gets into water cooling assembly's cooling within range, and water cooling assembly takes away the heat that the boiler tube transmitted out through the partial boiler tube outer wall of cold water parcel that flows, reduces the material after having passed through the cooling of forced air cooling subassembly again then, and the travelling comfort of temperature when the workman carries the material is promoted in the cooling twice.

Optionally, the communication position of the hydrogen pipeline and the furnace tube is located at a reserved distance between the water-cooling sleeve and the buffer tube.

Through adopting above-mentioned technical scheme, the installation of hydrogen pipeline of being convenient for, only need with boiler tube wall thickness intercommunication can, keep away from the feed inlet simultaneously, hydrogen too much when avoiding adding the material in the boiler tube scatters away, reduces the wasting of resources.

Optionally, the switching mechanism comprises a sealing assembly and a labor-saving assembly, the sealing assembly comprises a sealing plate, an inserting plate and a pull rope, a cavity is formed in the sealing plate, the sealing plate is arranged at the top of the cavity and is penetrated through, the sealing plate is located at the position where the buffer tube is communicated with the furnace tube, the buffer tube and the furnace tube are both communicated with the cavity in the sealing plate, the inserting plate is inserted and embedded in the sealing plate to fill the cavity, and one end of the pull rope is fixedly connected with the exposed end face of the inserting plate; laborsaving subassembly includes support frame, axis of rotation and pull rod, and the support frame is fixed to be set up at the closure plate top, rotates on the support frame and is provided with the axis of rotation, and the axis of rotation level sets up, and the axis of rotation is with the relative support frame rotation of self central line, and pull rod one end is articulated with the buffer tube top, and the other end upwards sets up to keeping away from closure plate department slope, and the stay cord other end is walked around behind the axis of rotation with pull rod middle part fixed connection, axis of rotation circumference outer wall and stay cord roll butt.

Through adopting above-mentioned technical scheme, keep away from buffer tube one end through pushing down the pull rod, the pull rod drives the stay cord and removes, and the stay cord passes through the axis of rotation and changes transmission direction to pull up the picture peg from the cavity, make buffer tube and boiler tube pass through the closing plate intercommunication then, in the material of being convenient for was pushed away to the buffer tube, the picture peg resets then, and easy operation is convenient, has promoted the security when workman takes the material.

Optionally, the rotating shaft is sleeved with a roller, a groove is formed in the circumferential outer wall of the roller, and part of the pull rope bypassing the rotating shaft is located in the groove of the roller.

Through adopting above-mentioned technical scheme, the setting of gyro wheel and recess has promoted the smoothness nature when the stay cord pulling, has reduced the friction, makes the workman pulling more laborsaving.

Optionally, the inner wall of the furnace body is paved with insulating bricks, and the insulating bricks are positioned on the inner wall of the bottom of the furnace body and the inner walls of the two end surfaces penetrated by the furnace tube.

By adopting the technical scheme, the insulating brick has the insulating effect, the loss of the temperature in the furnace body is delayed, the energy consumed by heating is saved, meanwhile, the insulating brick is cheap in material, and the processing cost is saved.

Optionally, the hot plate is provided with two sets ofly, and adjacent two sets of hot plates are located boiler tube top and below respectively, and the same intragroup adjacent hot plate distributes along boiler tube length direction equidistance, and the hot plate that is located the boiler tube below is located the top of furnace body diapire insulating brick simultaneously, and the terminal hole is seted up corresponding the mode of arranging of hot plate on the furnace body.

Through adopting above-mentioned technical scheme, heat through the hot plate from top to bottom simultaneously, promoted the efficiency of intensification in the furnace body, saved process time, make the boiler tube be located the part in the furnace body simultaneously and be heated more evenly, promoted the efficiency of reduction process, saved man-hour once more.

Optionally, a heat insulation layer is fixedly arranged in the furnace body, the heat insulation layer is located between the inner wall of the top of the furnace body and the heating plate above the furnace tube, and the heat insulation layer is made of heat insulation cotton.

Through adopting above-mentioned technical scheme, the heat preservation has played the heat preservation effect, has reduced the heat that the inside heat of furnace body scatters and disappears from the furnace body top, and cotton weight of heat preservation is little, more is fit for being located the furnace body top.

Optionally, a protective cover for protecting the terminal hole is fixedly arranged outside the furnace body, and the protective cover is arranged in a strip shape corresponding to the terminal hole arrangement mode and has two open ends.

Through adopting above-mentioned technical scheme, the protection casing plays the effect of protection and separation to the terminal hole, avoids inside debris got into the furnace body through the terminal hole, provides safety protection for the heating furnace passes through the terminal hole connection follow-up power component simultaneously.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the first hydraulic cylinder, the second hydraulic cylinder and the switch mechanism, workers only participate in the steps of filling and taking materials in the reduction process, and the switch mechanism is arranged for protecting the workers, so that the working safety of the workers is improved;

2. due to the arrangement of the air cooling assembly and the water cooling assembly, the temperature is more appropriate when workers carry processed materials through double cooling, and the workers can carry the processed materials conveniently;

3. insulating brick and the cotton setting of heat preservation select insulation material rationally according to the furnace body position, saved the processing cost when promoting the furnace body heat-insulating ability.

Drawings

FIG. 1 is a schematic diagram of the left side of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic diagram of the right side of the overall structure of an embodiment of the present application;

FIG. 3 is a schematic view showing the structure of the hidden furnace body to highlight the internal structure of the furnace body;

FIG. 4 is a sectional view of the hidden furnace body with a steel frame to highlight the structure of the insulating layer;

FIG. 5 is an exploded view of the structure highlighting the protective shield and the post hole;

FIG. 6 is a partial sectional view of the air cooling assembly and the water cooling assembly;

FIG. 7 is a schematic view showing a part of the switch mechanism;

fig. 8 is a partial structural sectional view for highlighting the switching mechanism.

Description of the reference numerals: 1. a furnace body; 11. heating plates; 12. insulating bricks; 13. a heat-insulating layer; 14. a terminal post hole; 15. a protective cover; 16. a furnace frame; 2. a furnace tube; 21. a feed gate; 22. a first hydraulic cylinder; 23. a second hydraulic cylinder; 24. a hydrogen gas conduit; 3. a buffer tube; 31. a discharge door; 4. a switch mechanism; 41. a closure assembly; 411. a closing plate; 412. inserting plates; 413. pulling a rope; 42. a labor-saving assembly; 421. a support frame; 422. a rotating shaft; 423. a pull rod; 5. an air-cooled assembly; 51. an air-cooled casing; 511. an air outlet; 52. a blower; 6. a water-cooling assembly; 61. water-cooling the sleeve; 62. a water inlet pipe; 63. a water outlet pipe; 7. a roller; 8. an object stage; 9. cooling the support; 91. a feed support.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses a reduction furnace.

Referring to fig. 1 and 2, a reduction furnace includes a furnace body 1 and a furnace tube 2, a feed gate 21 is disposed at one end of the furnace tube 2, a first hydraulic cylinder 22 is disposed at an end of the furnace tube 2 close to the feed gate 21, the first hydraulic cylinder 22 pushes a material entering from the feed gate 21 to the other end of the furnace tube 2, the other end of the furnace tube 2 penetrates through the furnace body 1 and is located outside the furnace body 1, a buffer tube 3 is communicated with one end of the furnace tube 2 away from the feed gate 21, a discharge gate 31 is disposed at an end of the buffer tube 3 away from the furnace tube 2, a second hydraulic cylinder 23 is disposed at an end of the furnace tube 2 close to the discharge gate 31, the second hydraulic cylinder 23 pushes the material processed in the furnace tube 2 into the buffer tube 3, a switch mechanism 4 is disposed between the buffer tube 3 and the furnace tube 2, the switch mechanism 4 controls the buffer tube 3 to be communicated with or separated from the interior of the furnace tube 2, a worker puts the material into the furnace tube 2 through the feed gate 21 in a material reduction process, the first hydraulic cylinder 22 pushes the material, the material is subjected to carry out a reduction reaction in the furnace tube 2, the buffer tube 1, the temperature is taken out from the furnace body 1, and is then pushed into the buffer tube 3, and is safely taken out by the worker when the worker.

Referring to fig. 2, the furnace body 1 is a rectangular box, the furnace tube 2 is horizontally arranged, the length direction of the furnace tube 2 is arranged along the length direction of the furnace body 1, and the vertical section of the furnace tube 2 is rectangular. The feeding gate 21 is located on the vertical side wall close to the end part of one end of the furnace tube 2, the feeding gate 21 is hinged on the furnace tube 2, the first hydraulic cylinder 22 is located on the end surface of the furnace tube 2 close to the feeding gate 21, the body of the first hydraulic cylinder 22 is connected with the end surface of the furnace tube 2 in a flange mode, the piston rod of the first hydraulic cylinder 22 penetrates through the end surface of the furnace tube 2 and penetrates into the interior of the furnace tube 2, the feeding support 91 is arranged below the first hydraulic cylinder, and the first hydraulic cylinder 22 is placed on the feeding support 91. The material can adopt the magazine to hold in this embodiment, and the magazine is two-layer about, and upper strata magazine is only one wall thickness less than lower floor's magazine. The material box is fixedly provided with the object stage 8 on the ground beside the feeding door 21, so that the material box can be placed temporarily conveniently, then the feeding door 21 is opened to place the material box inside the furnace tube 2, and the first hydraulic cylinder 22 performs piston motion to push the material box towards the other end of the furnace tube 2, so that the pushing of the material in the furnace tube 2 is completed.

Referring to fig. 3 and 4, the furnace body 1 is provided with a furnace frame 16 at the bottom, the furnace frame 16 is placed on the ground, and the furnace frame 16 separates the furnace body 1 from the ground so as to facilitate the heat preservation of the furnace body 1. 1 inside hot plate 11 that is provided with of furnace body, hot plate 11 are provided with a plurality ofly and divide into two sets ofly, and two sets of hot plates 11 are located 2 tops of boiler tube and below respectively, and the same group's adjacent hot plate 11 distributes along 2 length direction equidistance of boiler tube. The heating plate 11 and the furnace body 1 fixed connection that are located boiler tube 2 top, the inside steelframe of taking certainly of furnace body 1 in this embodiment, the steelframe adopts standard components such as I-steel and angle steel to weld and forms for fixed mounting heating plate 11 is provided with heat preservation 13 between the heating plate 11 that is located boiler tube 2 top and the 1 top of furnace body, and heat preservation 13 adopts the heat preservation 13 that the heat preservation cotton was made, and the cotton material of heat preservation is light, plays the effect that delays the diffusion to the inside temperature of furnace body 1 simultaneously. Be located and be provided with insulating brick 12 between heating plate 11 of boiler tube 2 below and the boiler body 1 bottom, insulating brick 12 piles up whole boiler body 1 bottom inner wall and two terminal surface inner walls that boiler body 1 was run through by boiler tube 2, and insulating brick 12 has weight, but the material is cheap, has saved the cost, possesses the heat preservation effect simultaneously. The heating plate 11 positioned below the furnace tube 2 is fixed on the insulating brick 12, and the heating plates 11 are arranged above and below the furnace tube 2, so that the temperature inside the furnace body 1 is rapidly increased, the processing efficiency is improved, and meanwhile, the material inside the furnace tube 2 is heated more uniformly.

Referring to fig. 3 and 5, each heating plate 11 is close to the inner wall of the furnace body 1 and has been provided with a terminal hole 14, one heating plate 11 corresponds to two terminal holes 14, all terminal holes 14 are divided into two rows, and the positions correspond to the positions of the heating plates 11, and all terminal holes 14 are all located on the vertical side wall of one side of the furnace body 1. The opening of the terminal hole 14 provides a socket for the heating plate 11 to be inserted into subsequent power supply equipment. Fixed safety cover 15 that is provided with on the outer wall of furnace body 1, safety cover 15 are rectangular form, and safety cover 15 covers and establishes on binding post hole 14, and safety cover 15 is provided with two promptly, and adjacent safety cover 15 corresponds two lines of binding post holes 14 and arranges, and safety cover 15 both ends are the opening form, and safety cover 15 plays dustproof protection's effect to binding post hole 14.

Referring to fig. 1 and 2, the furnace tube 2 is formed by split-type assembly in this embodiment, and is divided into three sections and connected into a complete furnace tube 2 through flanges, that is, the furnace tube 2 is located inside the furnace body 1 as one section, the sections located at two sides of the outside of the furnace body 1 are respectively as one section, and the flange connection positions are located outside the furnace body 1. The furnace tube 2 deviates from one end of the feeding door 21 and is provided with a water cooling component 6 and an air cooling component 5 on the part outside the furnace body 1, and the air cooling component 5, the water cooling component 6 and the buffer tube 3 are arranged in sequence along the direction of keeping away from the furnace body 1.

Referring to fig. 1 and 6, the air cooling assembly 5 includes an air cooling sleeve 51 and a blower 52, the air cooling sleeve 51 is sleeved on the outer wall of the furnace tube 2 and has a distance with the outer wall of the furnace tube 2, the air cooling sleeve 51 is arranged along the length direction of the furnace tube 2, one end of the air cooling sleeve 51 can be fixedly connected with the outer wall of the furnace body 1 and also can have a distance with the outer wall of the furnace body 1, the other end of the air cooling sleeve 51 extends along the length direction of the furnace tube 2, and both ends of the air cooling sleeve 51 are closed and are penetrated through by the furnace tube 2. The top of the air-cooling sleeve 51 is provided with an air outlet 511, the air outlet 511 is circular, the blower 52 is fixed at the bottom of the air-cooling sleeve 51, and the air outlet 511 of the blower 52 extends into the air-cooling sleeve 51. The materials absorb high temperature in the furnace body 1 and undergo reduction reaction, and then are pushed out of the furnace tube 2 in the furnace body 1 and enter the part of the furnace tube 2 wrapped by the air cooling component 5. The blower 52 blows air into the air-cooled sleeve 51, and the flowing air cools the temperature of the furnace tube 2, so that the effect of cooling the processed material is achieved indirectly.

Referring to fig. 2 and 6, the water cooling assembly 6 includes a water cooling sleeve 61, a water inlet pipe 62 and a water outlet pipe 63, the water cooling sleeve 61 is sleeved on the outer wall of the furnace tube 2 and has a distance with the outer wall of the furnace tube 2, both ends of the water cooling sleeve 61 are closed and are penetrated through by the furnace tube 2, the length direction of the water cooling sleeve 61 is the same as the length direction of the furnace tube 2, one end of the water cooling sleeve 61 close to the air cooling sleeve 51 is abutted to the end of the air cooling sleeve 51, and one end of the water cooling sleeve 61 far away from the air cooling sleeve 51 is communicated with the end of the furnace tube 2 to form a buffer pipe 3 with a distance. One end of the water inlet pipe 62 is communicated with an external water source, and the other end is communicated with the bottom of the water-cooling sleeve 61. One end of the water outlet pipe 63 is communicated with an external recycled water source, and the other end is communicated with the top of the water-cooling sleeve 61. The inlet tube 62 begins to send water, then fills up the space between water-cooling sleeve 61 and the boiler tube 2 outer wall and is full of, and then the water that flows out from outlet pipe 63, forms a state that flows water, and this section boiler tube 2 that the water that flows is wrapped up by water-cooling sleeve 61 is cooled down to indirect this section boiler tube 2 inside material that is located of cooling down, the transport of taking of the material that finishes processing of the follow-up workman of being convenient for.

Referring to fig. 7, the furnace tube 2 is communicated with a hydrogen pipeline 24, the communication position of the hydrogen pipeline 24 and the furnace tube 2 is located at the interval between the water-cooling sleeve 61 and the end of the furnace tube 2, and the hydrogen pipeline 24 is selected to be convenient to install, and meanwhile, the hydrogen pipeline 24 only penetrates through the wall thickness of the furnace tube 2, so that unnecessary obstruction is reduced, and the installation is convenient.

Referring to fig. 7, the buffer tube 3 is horizontally disposed, the communicating part of the buffer tube 3 and the furnace tube 2 is located on the vertical sidewall of the furnace tube 2 near the end face of the buffer tube 3, and the horizontal projections of the buffer tube 3 and the furnace tube 2 are perpendicular to each other. The second hydraulic cylinder 23 is located at the position of the furnace tube 2 opposite to the discharge door 31, the body of the second hydraulic cylinder 23 is in flange connection with the outer wall of the furnace tube 2, the piston rod of the second hydraulic cylinder 23 extends into the furnace tube 2, and the second hydraulic cylinder 23 can push the material in the furnace tube 2 into the buffer tube 3 when in piston motion.

Referring to fig. 7 and 8, the switch mechanism 4 includes a closing member 41 and a laborsaving member 42. The sealing assembly 41 comprises a sealing plate 411, an inserting plate 412 and a pull rope 413, the sealing plate 411 is a rectangular plate, the sealing plate 411 is vertically arranged, the sealing plate 411 is located between the furnace tube 2 and the buffer tube 3 and fixedly connected with the furnace tube 2 and the buffer tube 3, a cavity is formed in the sealing plate 411, the furnace tube 2 and the buffer tube 3 are both opened with the cavity, the top of the cavity is provided with the top of the sealing plate 411, the inserting plate 412 is inserted and embedded in the cavity in a matching mode, and when the inserting plate 412 is inserted and embedded in the cavity, the inserting plate 412 separates the interior of the buffer tube 3 from the interior of the furnace tube 2. One end of the pulling rope 413 is fixedly connected with the top of the insertion plate 412, so that a worker can conveniently pull the insertion plate 412 to communicate the furnace tube 2 with the interior of the buffer tube 3.

Laborsaving subassembly 42 includes support frame 421, axis of rotation 422 and pull rod 423, and support frame 421 fixed settings is at closure plate 411 top, and support frame 421 vertical settings, support frame 421 and closure plate 411 fixed position are located picture peg 412 and are close to ejection of compact door 31 one side, and axis of rotation 422 is located support frame 421 top, and axis of rotation 422 level sets up, and axis of rotation 422 uses self central line as the rotation of axis of rotation relative support frame 421. One end of the pull rod 423 is hinged with the top of the buffer tube 3, the other end of the pull rod 423 performs arc motion towards the position close to or far away from the insertion plate 412 by taking a hinged point as a rotating shaft 422, and one end of the pull rope 413 far away from the insertion plate 412 bypasses the rotating shaft 422 and is fixedly connected with the middle part of the pull rod 423. Be provided with gyro wheel 7 on the axis of rotation 422, gyro wheel 7 ring cover is fixed on axis of rotation 422, has seted up the recess on the gyro wheel 7 circumference outer wall, and the part that axis of rotation 422 was walked around to stay cord 413 is located the recess of gyro wheel 7, and when locating the pulling pull rod 423 to keeping away from picture peg 412, pull rod 423 drives the movement of stay cord 413 to with picture peg 412 pull-up, gyro wheel 7 plays the effect that changes stay cord 413 direction of motion, and easy operation is convenient.

Referring to fig. 7, the objective table 8 is also fixedly disposed on the ground near the discharge door 31, and the objective table 8 is convenient for accommodating the taken-out material.

The implementation principle of the reduction furnace in the embodiment of the application is as follows: opening the feeding door 21, placing the material in the material box, placing the material box in the furnace tube 2, starting the first hydraulic cylinder 22, pushing the material to the discharging door 31 by the first hydraulic cylinder 22, continuously placing the material box, enabling the material box placed in the furnace body 1, simultaneously injecting hydrogen into the furnace tube 2, starting heating by the heating plate 11, and closing the feeding door 21; when the reduction time is reached, the feeding door 21 is opened, a new material box is placed again and pushed through the first hydraulic cylinder 22, the material box subjected to the reduction process is pushed through the new material box and is cooled through the air cooling assembly 5 and the water cooling assembly 6, the material box finally reaches the second hydraulic cylinder 23, a worker pulls the pull rod 423, the second hydraulic cylinder 23 pushes the material box into the buffer tube 3, the pull rod 423 is loosened, the buffer tube 3 and the interior of the furnace tube 2 are blocked, the worker safely takes the reduced material away, the material is taken away repeatedly, and the working safety of the worker is improved.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A reduction furnace comprises a furnace body (1) and a furnace tube (2), wherein a heating plate (11) is fixedly arranged in the furnace body (1), a wiring column hole (14) is reserved in the furnace body (1), the furnace tube (2) penetrates through the furnace body (1), two ends of the furnace tube (2) are both positioned outside the furnace body (1), a feeding gate (21) is arranged on the side wall of one end, close to the feeding gate (21), of the furnace tube (2), a first hydraulic cylinder (22) used for pushing materials at the feeding gate (21) to the furnace tube (2) in the furnace body (1) is fixedly arranged on the end face of one end, close to the feeding gate (21), of the furnace tube (2), a buffer tube (3) is arranged at one end, far away from the feeding gate (21), one end of the buffer tube (3) is communicated with the furnace tube (2), a discharging gate (31) is arranged at the other end of the buffer tube (2), a second hydraulic cylinder (23) used for pushing the materials into the buffer tube (3) is fixedly arranged at one end, a switch mechanism (4) used for controlling the communication or sealing between the interior of the furnace tube (2) and the buffer tube (3) is arranged at the communication between the buffer tube (3), and the buffer tube (2), and the communication between the buffer tube (2), and the buffer tube (24) is arranged at the communication between the buffer tube (2); the switching mechanism (4) comprises a sealing assembly (41) and a labor-saving assembly (42), the sealing assembly (41) comprises a sealing plate (411), an inserting plate (412) and a pulling rope (413), a cavity is formed in the sealing plate (411), the top of the cavity is provided with the sealing plate (411), the sealing plate (411) is located at the position where the buffer tube (3) is communicated with the furnace tube (2), the buffer tube (3) and the furnace tube (2) are both communicated with the cavity in the sealing plate (411), the inserting plate (412) is inserted into the sealing plate (411) to fill the cavity, and one end of the pulling rope (413) is fixedly connected with the exposed end face of the inserting plate (412); laborsaving subassembly (42) is including support frame (421), axis of rotation (422) and pull rod (423), support frame (421) are fixed to be set up at closure plate (411) top, it is provided with axis of rotation (422) to rotate on support frame (421), axis of rotation (422) level sets up, axis of rotation (422) are with the relative support frame (421) rotation of self central line, pull rod (423) one end is articulated with buffer tube (3) top, the other end upwards sets up to keeping away from closure plate (411) department slope, stay cord (413) other end is walked around axis of rotation (422) back and pull rod (423) middle part fixed connection, axis of rotation (422) circumference outer wall rolls butt with stay cord (413).

2. A reduction furnace according to claim 1, characterized in that: be provided with air-cooled subassembly (5) on boiler tube (2), air-cooled subassembly (5) are including air-cooled sleeve pipe (51) and hair-dryer (52), air-cooled sleeve pipe (51) ring cover is on boiler tube (2) outer wall and both ends are run through by boiler tube (2), air-cooled sleeve pipe (51) are located between buffer tube (3) and furnace body (1), air-cooled sleeve pipe (51) one end and furnace body (1) outer wall fixed connection, the other end is complied with boiler tube (2) length and is extended to being close to buffer tube (3) department, air outlet (511) have been seted up on air-cooled sleeve pipe (51), hair-dryer (52) are fixed to be set up on air-cooled sleeve pipe (51) and the mouth of blowing is located inside air-cooled sleeve pipe (51).

3. A reduction furnace according to claim 2, characterized in that: be provided with water-cooling subassembly (6) on boiler tube (2), water-cooling subassembly (6) are including water-cooling sleeve pipe (61), inlet tube (62) and outlet pipe (63), water-cooling sleeve pipe (61) ring cover is on boiler tube (2) and both ends are run through by boiler tube (2), water-cooling sleeve pipe (61) are located between buffer tube (3) and air-cooled sleeve pipe (51), water-cooling sleeve pipe (61) one end deviates from furnace body (1) one end fixed connection with air-cooled sleeve pipe (51), the other end is located to extend and is left the distance between buffer tube (3) along boiler tube (2) length direction to buffer tube (3), inlet tube (62) one end and water-cooling sleeve pipe (61) bottom intercommunication, the other end and outside water source intercommunication, outlet pipe (63) one end and water-cooling sleeve pipe (61) top intercommunication, the other end retrieves the water source intercommunication with the external world.

4. A reducing furnace according to claim 3, characterized in that: the connection part of the hydrogen pipeline (24) and the furnace tube (2) is positioned at the reserved distance between the water-cooling sleeve (61) and the buffer tube (3).

5. A reduction furnace according to claim 1, characterized in that: the rotating shaft (422) is sleeved with the roller (7), the circumferential outer wall of the roller (7) is provided with a groove, and part of the pull rope (413) bypassing the rotating shaft (422) is positioned in the groove of the roller (7).

6. A reducing furnace according to claim 1, characterized in that: the furnace is characterized in that insulating bricks (12) are laid on the inner wall of the furnace body (1), and the insulating bricks (12) are positioned on the inner wall of the bottom of the furnace body (1) and the inner walls of the two end faces penetrated by the furnace tube (2).

7. A reduction furnace according to claim 6, characterized in that: heating plate (11) are provided with two sets ofly, and adjacent two sets of heating plate (11) are located boiler tube (2) top and below respectively, and adjacent heating plate (11) distribute along boiler tube (2) length direction equidistance in the same group, and heating plate (11) that are located boiler tube (2) below are located the top of furnace body (1) diapire insulating brick (12) simultaneously, and the mode of arranging that corresponds heating plate (11) on furnace body (1) in terminal hole (14) is seted up.

8. A reduction furnace according to claim 7, characterized in that: the furnace body (1) internal fixation is provided with heat preservation (13), and heat preservation (13) are located between furnace body (1) top inner wall and boiler tube (2) top hot plate (11), and heat preservation (13) that heat preservation cotton was made are adopted in heat preservation (13).

9. A reduction furnace according to claim 7, characterized in that: the external fixation of furnace body (1) is provided with the protection casing that is used for protecting terminal hole (14), and the protection casing corresponds terminal hole (14) mode of arranging and sets up to rectangular form and both ends opening.