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CN-117006838-B - Multi-furnace body serial stepping type continuous heating furnace

CN117006838BCN 117006838 BCN117006838 BCN 117006838BCN-117006838-B

Abstract

The invention discloses a multi-furnace-body serial stepping continuous heating furnace, which relates to the technical field of heating furnaces and comprises a furnace charging base, wherein a preheating base is fixedly arranged at the bottom end of the rear side of the furnace charging base through bolts, a heating base is fixedly arranged at the rear side of the preheating base through bolts, and a furnace charging structure comprises two fixed support rails which are fixedly arranged at the two sides of the top end of the furnace charging base through bolts. According to the invention, the plurality of furnace bodies are arranged, the preheating furnace body is separated from the heating furnace body, the high-temperature flue gas of the heating furnace body is used as a heat source of the preheating furnace body to preheat the steel billet, the flue gas temperature discharged by the preheating furnace body is the final flue gas temperature of the heating furnace body, a small number of burners can be arranged in the preheating furnace body to be used as auxiliary heating adjustment burners, the flue gas temperature of the heating furnace can be controlled accurately, the flue gas temperature can be controlled at the lower limit of dew point corrosion prevention temperature, so that the energy consumption is reduced, and the chimney is not corroded.

Inventors

  • LIU JIACHENG
  • HU BO
  • YANG YOUMING

Assignees

  • 湖南华菱湘潭钢铁有限公司

Dates

Publication Date
20260508
Application Date
20230828

Claims (8)

  1. 1. The utility model provides a multi-furnace body series connection step-by-step continuous heating furnace, includes charging base (1), the rear side bottom fixed mounting of charging base (1) has preheat base (2), the rear side fixed mounting of preheat base (2) has heating base (3), its characterized in that: The furnace charging structure (4), the furnace charging structure (4) comprises two fixed support rails (401), and the two fixed support rails (401) are fixedly arranged on two sides of the top end of the furnace charging base (1); The preheating furnace mounting structure (5), the preheating furnace mounting structure (5) comprises a mounting plate (501), a threaded rod (502) and supporting slide rods (503), wherein the mounting plate (501) is fixedly mounted at one third of the position, close to the right end, inside the preheating base (2), of the mounting plate (501), a connecting hole is formed in the middle of the mounting plate (501), the threaded rod (502) is movably mounted in the connecting hole, one end, far away from the mounting plate (501), of the threaded rod (502) is movably mounted in the middle of the left inner wall of the preheating base (2), the two supporting slide rods (503) are distributed on two sides of the threaded rod (502) at equal intervals, and two ends of the two supporting slide rods (503) are movably mounted at the middle ends of the inner wall of the mounting plate (501) and the inner wall of the preheating base (2) respectively; The furnace body conversion transmission structure (6), furnace body conversion transmission structure (6) includes driving disk (601), draw-in groove (602), output wheel (603) and draw-in post (604), driving disk (601) fixed mounting is in the right side one end of threaded rod (502), draw-in groove (602) share a plurality of and are circumference and arrange and evenly set up in driving disk (601) one side that keeps away from threaded rod (502), output wheel (603) activity cup joints outside driving disk (601), set up a plurality of even column groove that is circumference and arrange in output wheel (603), draw-in post (604) share a plurality of and movable mounting in the column groove; the device comprises a stepping preheating structure (7), wherein the stepping preheating structure (7) comprises a preheating furnace feeding and discharging motor (701) and a preheating furnace stepping wheel (702), the number of the preheating furnace stepping wheels (702) is four and the preheating furnace feeding and discharging motor (701) is divided into two groups, and an output shaft of the preheating furnace feeding and discharging motor (701) is fixedly connected with one preheating furnace stepping wheel (702) far away from a furnace charging base (1); Heating structure (8), heating structure (8) are including heating furnace body (801) and heating furnace business turn over material motor (802), heating furnace body (801) fixed mounting is on the top of heating base (3), heating furnace business turn over material motor (802) fixed mounting is at the lateral wall rear end of heating furnace body (801).
  2. 2. The multi-furnace-body serial stepping continuous heating furnace of claim 1, wherein the furnace charging structure (4) comprises a furnace charging rack (402), rollers (403) and a furnace charging roller way (404), the furnace charging rack (402) is clamped and slidably mounted at the top ends of fixed supporting rails (401), wheel grooves are formed in two sides of the bottom end of the furnace charging rack (402), the rollers (403) are shared by a plurality of groups and are equally divided into two groups and movably mounted in the wheel grooves through bearings, and the furnace charging roller way (404) is shared by a plurality of groups and is equally divided into two groups and movably mounted at the top ends of two sides of the two furnace charging racks (402) through bearings.
  3. 3. The multi-furnace serial stepping continuous heating furnace of claim 2, wherein the preheating furnace mounting structure (5) comprises a preheating furnace body (504), a track support plate (505), a movable support rail (506) and a translation sliding block (507), the preheating furnace body (504) is fixedly mounted at the top end of the translation sliding block (507) through bolts, the track support plate (505) is fixedly mounted at the bottom end of the preheating furnace body (504) through bolts, the track support plate (505) is slidably connected at the top end of a preheating base (2), the movable support rail (506) has two common support rails which are fixedly mounted at the top ends of the track support plate (505) through bolts, the distance between the two movable support rails (506) is equal to the distance between the two fixed support rails (401), the top ends of the movable support rail (506) are flush with the top ends of the fixed support rails (401), threaded holes are formed in the middle of the translation sliding block (507), sliding holes are formed in the two sides of the threaded holes at equal distance, the threaded rods (502) are mounted in the threaded holes, the sliding bars (503) are inserted into the threaded holes, the sliding holes are inserted into the sliding holes, the sliding holes are mounted between the top ends (507) and the sliding base (507) and the cross section (501) is equal to the length of the cross section (501), and each accounts for one third of the section length of the bottom end inside the preheating base (2).
  4. 4. A multi-furnace serial stepping continuous heating furnace as claimed in claim 3, wherein the furnace body conversion transmission structure (6) comprises springs (605), a furnace body conversion motor (606), a first transmission belt (607), a transmission wheel (608), a first bevel gear (609) and a second bevel gear (610), wherein the springs (605) are shared by a plurality of springs and are respectively and fixedly arranged at the bottom end of a clamping column (604) and the bottom end in a column groove, the clamping column (604) is in clamping connection with the clamping groove (602), the furnace body conversion motor (606) is fixedly arranged at the bottom end in the preheating base (2) through bolts, an output shaft of the furnace body conversion motor (606) is fixedly arranged in the middle of one side of an output wheel (603) which is far away from the clamping groove (602) through bolts, the output shaft of the furnace body conversion motor (606) is fixedly provided with a belt pulley through bolts, the first transmission belt (607) is movably sleeved outside the belt pulley, the transmission wheel (608) is movably arranged at one side of the mounting plate (501) which is far away from the threaded rod (502) through bearings, the other end of the first transmission belt (607) is movably sleeved outside the first bevel gear (608) which is movably arranged at one side of the mounting plate (609) which is far from the inside the middle of the preheating base (2) through bolts, the second bevel gear (610) is meshed with the first bevel gear (609) at the bottom end of the first bevel gear (609).
  5. 5. The multi-furnace-body serial stepping continuous heating furnace according to claim 4, wherein the furnace body conversion transmission structure (6) comprises a second transmission belt (611), a transfer belt (612), a third transmission belt (613), a first transmission gear (614) and a chute (615), the second transmission belt (611) is movably sleeved at the bottom end of the second bevel gear (610), a mounting frame is fixedly mounted on one side of the preheating base (2) close to the furnace base (1) through a bolt, the transfer belt (612) is movably mounted on the mounting frame through a bearing, the other end of the second transmission belt (611) is movably sleeved at the bottom end of the transfer belt (612), the third transmission belt (613) is movably sleeved at the top end of the transfer belt (612), one side of the preheating base (2) close to the furnace base (1) is fixedly mounted with a gear plate through a bolt, the other end of the third transmission belt (613) is movably sleeved at the bottom end of the first transmission gear (614) and is fixedly mounted between the preheating base (2) and the chute (615) through the bolt.
  6. 6. The multi-furnace-body serial stepping continuous heating furnace of claim 5, wherein the furnace body conversion transmission structure (6) comprises a first rack (616), a second rack (617), a second transmission gear (618), a connecting rod (619) and a third transmission gear (620), the first rack (616) is inserted and slidably mounted in a sliding groove (615), one side of the first rack (616) close to the preheating base (2) is provided with inner tooth grooves, one third section of one side of the first rack (616) close to the furnace base (1) and one third section of one end of the right side of the preheating base (2) is provided with outer tooth grooves, the second rack (617) is fixedly mounted at one side bottom end of the furnace base (402) close to the first transmission gear (614) through a bolt, the second transmission gear (618) is in meshed connection with the second rack (617), one side of the sliding groove (616) close to the preheating base (2) is fixedly mounted with the bottom end of the second transmission gear (618) through a bolt, one third rack (619) is fixedly mounted on one side of the sliding groove (615) close to the furnace base (1) through a bearing, and the connecting rod (620) is fixedly mounted in the connecting rod (619) through the transmission groove.
  7. 7. The multi-furnace serial continuous heating furnace of claim 6, wherein the step-by-step preheating structure (7) comprises a preheating furnace connecting arm (703), a preheating furnace top material bed (704), a preheating furnace roller way (705), a preheating furnace smoke inlet pipeline (706) and a preheating furnace smoke outlet pipeline (707), the four preheating furnace connecting arms (703) are respectively movably arranged at one side of a preheating furnace stepping wheel (702) far away from a preheating furnace material inlet and outlet motor (701) through bearings, and are positioned at a position far away from the center of the preheating furnace stepping wheel (702), the top ends of the preheating furnace connecting arms (703) are fixedly arranged at the left bottom end and the right bottom end of a preheating furnace top material bed (704) through bolts, the preheating furnace top (705) are uniformly arranged at the left inner wall and the right inner wall of a preheating furnace body (504) through bearings in two groups, the top ends of the preheating furnace top material bed (704) are flush with the top ends of an inlet furnace roller way (404), the top ends of the preheating furnace top material bed (704) are positioned between the two groups, the two preheating furnace top ends of the preheating furnace top (504) are positioned at the same side, the top ends of the preheating furnace top (504) are connected with a linkage, the two side of the preheating furnace top (504) are connected with the two side chains are connected, the top ends of the preheating furnace top (504) are connected, the top ends of the preheating furnace top chain (504) are connected, the top ends are connected with the top ends of the preheating furnace chain, the preheating furnace chain (504) and the top ends are connected with the top ends, the preheating furnace smoke inlet pipeline (706) is installed in the preheating furnace smoke inlet through bolt insertion, and the preheating furnace smoke outlet pipeline (707) is installed in the preheating furnace smoke outlet through bolt insertion.
  8. 8. The multi-furnace serial stepping continuous heating furnace of claim 7, wherein the heating structure (8) comprises a heating furnace roller way (803), a heating furnace smoke outlet pipeline (804), a pipeline valve (805), a first smoke outlet pipeline (806) and a second smoke outlet pipeline (807), the heating furnace roller way (803) is divided into a plurality of groups and is movably arranged on the left inner wall and the right inner wall of the heating furnace body (801) through bearings, the top end of the heating furnace roller way (803) is flush with the top ends of the furnace inlet roller way (404) and the preheating furnace roller way (705), an output shaft of the heating furnace smoke inlet and outlet motor (802) is positioned in the heating furnace body (801) and is fixedly provided with a heating stepping wheel through bolts, the heating stepping wheel is movably provided with a heating connecting arm through bearings, the top end of the heating connecting arm is fixedly provided with a heating jacking bed through bolts, the heating furnace smoke outlet is arranged in the middle of the top end of the heating furnace body (801), the bottom end of the heating furnace smoke outlet pipeline (804) is inserted into the left inner wall of the heating furnace body (801) through a plurality of bolts, the smoke outlet is respectively arranged on the two sides of the heating furnace body (801) through a changeover smoke outlet valve (805), the second smoke outlet pipeline (807) is inserted and installed in the middle of the side wall of one pipeline valve (805) far away from the furnace body conversion motor (606) through bolts, and a plurality of burners (9) are inserted and installed in the middle of the top ends of the preheating furnace body (504) and the heating furnace body (801) through bolts.

Description

Multi-furnace body serial stepping type continuous heating furnace Technical Field The invention relates to the technical field of heating furnaces, in particular to a multi-furnace-body serial stepping continuous heating furnace. Background The utility model provides a step-by-step heating furnace is a continuous heating heat treatment equipment of wide use in the industry heat treatment industry, chinese patent application number 202120713760.2 discloses "an automatic change forging manipulator processing walking beam formula continuous heating furnace equipment, two pivoted bent plates cooperation plectane drive riser carries out rectangle promotion formula and carries, realize carrying the interval, heating time has been increased, guarantee the heating effect, work efficiency has been improved, thereby make the recess inboard wall outside remove, realize the steel sheet of non-width and support the heating, the use limitation has been eliminated, convenient to use, thereby make the second threaded rod break away from the riser, then pull the shell outside and can accomplish the dismantlement, reverse operation shell can be installed, the maintenance has been realized dismantling, convenient operation has been prolonged, and a service life is prolonged, and is convenient for popularize and use. " The comparison document only solves the problems of unsatisfactory heating effect and short service life, the prior billet heating furnace generally has a preheating section, a heating section and a soaking section, so that the heating furnace is suitable for the diffusion requirement of partial alloy steel components, the heating furnace has strict requirement on the furnace time, the furnace body of the heating furnace is built longer and longer, the billet is longer in the furnace time, the production of partial easily decarburized steel types is unsuitable, meanwhile, the flue gas channeling of the relatively hot heating section in the furnace cannot be controlled, the temperature and the heating speed of the preheating section cannot be accurately controlled, the heat cracking of the heat cracking sensitive steel with strict requirement on the heating speed is very easy to generate heat cracking so as to influence the quality of products, the temperatures of the preheating section and the heating section need to be strictly controlled, only the burner of the heating section is closed so as to ensure the slow heating of the billet, and the heating capacity of the heating furnace cannot be exerted, and the methods such as empty furnace and air charging are often needed for switching among the steel types when the steel types which are easy to decarburize and the component elements need to diffuse for a long time are required, the preheating of the steel types is very large in preheating impact on the production, the preheating furnace cannot be accurately controlled, the temperature of the heating section is difficult to be controlled by the flue gas temperature fluctuation of the heating section, the flue gas is difficult to be discharged due to the fact that the temperature of the heating section is not fully controlled by the flue gas temperature fluctuation, and the flue gas is not easy to discharge temperature of the heating section, and the flue gas is not easy to control the temperature of the temperature is discharged. Disclosure of Invention The invention aims to provide a multi-furnace body serial stepping type continuous heating furnace so as to solve the problems in the background technology. The technical scheme is that the multi-furnace body serial stepping continuous heating furnace comprises a charging base, wherein a preheating base is fixedly arranged at the bottom end of the rear side of the charging base through bolts, and a heating base is fixedly arranged at the rear side of the preheating base through bolts; The furnace charging structure comprises two fixed support rails which are fixedly arranged on two sides of the top end of the furnace charging base through bolts; The preheating furnace installation structure comprises an installation plate, a threaded rod and supporting sliding rods, wherein the installation plate is fixedly installed at one third of the position, close to the right end, inside a preheating base through bolts, a connecting hole is formed in the middle of the installation plate, the threaded rod is movably installed in the connecting hole through a bearing, one end, far away from the installation plate, of the threaded rod is movably installed in the middle of the inner wall on the left side of the preheating base through a bearing, the two supporting sliding rods are distributed on two sides of the threaded rod at equal intervals, and two ends of the two supporting sliding rods are movably installed at the middle ends of the inner wall of the installation plate and the inner wall of the preheating base through bearings respectively; The furnace body conversion tr