CN115213393B

CN115213393B - Molten steel filtering device for casting anchor chain wheel

Info

Publication number: CN115213393B
Application number: CN202210802661.0A
Authority: CN
Inventors: 黄建军; 姚锦余; 金凤
Original assignee: Jiangsu Zhengtian New Materials Co ltd
Current assignee: Jiangsu Zhengtian New Materials Co ltd
Priority date: 2022-07-09
Filing date: 2022-07-09
Publication date: 2023-07-21
Anticipated expiration: 2042-07-09
Also published as: CN115213393A

Abstract

The invention discloses a molten steel filtering device for casting a anchor chain wheel, which relates to the technical field of filtering equipment and comprises an outer cylinder, wherein an inner cylinder is arranged in the outer cylinder, a dredging plate for dredging filter residues is arranged between the outer cylinder and the inner cylinder, the dredging plate is spiral, a filter plate for filtering the filter residues is also arranged between the outer cylinder and the inner cylinder, and the filter plate is positioned on a dredging path of the dredging plate; a base is arranged in the inner cylinder, a base liquid outlet groove is formed in the base, and an argon gas inlet component is arranged on the base and used for introducing argon gas; the base is also provided with a filter residue salvaging component; the filter residue salvaging component comprises a plurality of salvaging assemblies, and the salvaging assemblies are used for throwing the salvaged filter residues into the dredging plate, so that later cleaning is facilitated; the invention uses argon blowing technology to replace filter screen operation, removes impurities in molten steel, has high cleaning efficiency, and is convenient for cleaning filter residues.

Description

Molten steel filtering device for casting anchor chain wheel

Technical Field

The invention relates to the technical field of filtering equipment, in particular to a molten steel filtering device for casting a anchor chain wheel.

Background

In casting production, steel castings, iron castings and other alloy castings are easy to generate quality problems such as slag holes, sand holes, gas holes and the like due to various reasons, so that nonmetallic inclusions in metal melts are removed, the casting quality is improved, the method has great technical value and economic value, harmful impurities in molten steel are compounds formed by elements such as sulfur, phosphorus and oxygen which are molten in the molten steel, a filter screen is generally adopted in the conventional filtering equipment for the molten steel, however, the production cost of the filter screen is high, the filtering and purifying effects are reduced after the use times are increased, and a plurality of defects are revealed.

The invention patent of China with the publication number of CN107469436A proposes a molten steel purifying and filtering device, including a refractory brick rectangular box body, a molten steel inlet is formed on the top surface of the left end of the box body, a molten steel outlet is formed on the bottom surface of the right end of the box body, the device is characterized in that three partition boards are sequentially arranged in the box body from left to right to divide the box body into four chambers, the bottom end of the first partition board is in sealing connection with the bottom end of the box body, the top end of the second partition board is in interval with the top end of the box body to form an overflow port, the top end of the second partition board is connected with the top end of the box body, the bottom end of the second partition board is in interval with the bottom end of the box body to form a circulating port, a ceramic filter body is arranged in the circulating port, gaps between the two sides of the ceramic filter body and the first partition board and the second partition board form a guide channel, the bottom end of the third partition board is connected with the bottom end of the box body, the top end of the third partition board and the top end of the box body form an overflow port, the molten steel inlet is positioned in the first chamber, the molten steel outlet is positioned in the fourth chamber, and a second filter screen is arranged in the outlet, so that a filter device capable of effectively filtering the molten steel and reducing the impact of molten steel to the molten steel and improving the purity of the filter screen is provided. The patent relies on the filter screen to remove the great granule of volume, and impurity such as some tiny granule can't get rid of, and the removal effect is not good, and impurity is possible to be mingled in molten iron and is difficult for the come-up in addition, is difficult to get rid of.

Disclosure of Invention

Aiming at the technical problems, the technical scheme provided by the invention can effectively solve the problems, utilizes the argon blowing technology to replace the filter screen operation, removes impurities in molten steel, has high cleaning efficiency, and is also convenient for cleaning filter residues.

The technical scheme adopted by the invention is as follows: the molten steel filtering device for casting the anchor chain wheel comprises an outer cylinder, wherein an inner cylinder is arranged in the outer cylinder, a dredging plate for dredging filter residues is arranged between the outer cylinder and the inner cylinder, the dredging plate is spiral, a filter plate for filtering the filter residues is also arranged between the outer cylinder and the inner cylinder, and the filter plate is positioned on a dredging path of the dredging plate; a base is arranged in the inner cylinder, a base liquid outlet groove is formed in the base, and an argon gas inlet part and a filter residue salvaging part are arranged on the base; the argon gas inlet component comprises a rotating frame and a breather pipe, a plurality of brackets are fixedly connected to the rotating frame, a bracket release opening is formed in the bottom of each bracket, a release pipe is rotatably arranged in each bracket, the release pipe is provided with the release opening, the breather pipe is used for conveying argon gas, the breather pipe is hollow, a plurality of branch pipes are communicated with the bottom end of the breather pipe, and the branch pipes are communicated with the release pipes; the rotating frame is fixedly provided with a heater for heating, and the heater is fixedly connected with a centrifugal frame; the filter residue salvaging component comprises a plurality of salvaging components, the salvaging components comprise salvaging plates, the plurality of salvaging plates are spliced into a circular ring area, the salvaging components further comprise two lifting racks, the number of gear teeth on the two lifting racks is different, the two lifting racks are respectively and rotatably connected with a connecting rod towards one end of the salvaging plates, one end of the connecting rod is rotatably connected with the salvaging plates, the salvaging plates are driven to move upwards through the lifting racks, so that filter residues are salvaged, and the salvaged filter residues are obliquely deflected through the salvaging plates to be thrown into the dredging plates.

Further, fixedly connected with connecting cylinder on the base, fixedly connected with roof on the connecting cylinder, filter residue salvage part set up on the roof, and the argon gas lets in the part setting on the connecting cylinder.

Further, the argon gas inlet component further comprises a fixed gear fixedly arranged on the base, the top of the vent pipe is rotatably arranged on the liquid inlet pipe, the vent pipe is positioned in the connecting cylinder, the branch pipe is fixedly connected with a meshing gear, and the meshing gear is meshed with the fixed gear; the rotating frame, the heater and the centrifugal frame are respectively and rotatably arranged on the connecting cylinder and rotate through the ventilating pipe so as to enable the rotating frame, the heater and the centrifugal frame to be linked.

Further, the filter residue salvaging component comprises a gear ring rotatably arranged on the top plate, a plurality of salvaging components are provided with gear sets, the gear sets are meshed with the gear ring, and the gear sets rotate to drive the plurality of salvaging components.

Further, the fishing assembly comprises a first gear rotatably mounted on the top plate, the first gear and the gear ring form a gear pair, a second gear is fixedly connected to the first gear, the fishing assembly further comprises a fourth gear rotatably mounted on the top plate, the fourth gears are respectively meshed with the two lifting racks, the two lifting racks are respectively slidably mounted on the top plate, a third gear is fixedly connected to the fourth gear, the third gear is meshed with the second gear, and the fourth gears are connected through a belt structure.

Compared with the prior art, the invention has the beneficial effects that: (1) Argon is introduced through the argon introducing part to remove filter residues in the molten steel, so that the removing effect is continuous and efficient, and the environment is not polluted; (2) Salvaging the filter residues through a filter residue salvaging component, and throwing the filter residues into the spiral dredging plate; (3) The salvaged molten steel and filter residues are dredged through the spiral dredger between the outer cylinder and the inner cylinder, so that the later cleaning is facilitated.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a schematic view of the outer and inner barrels of the present invention.

FIG. 3 is a schematic view of the inner structure of the inner cylinder of the present invention.

FIG. 4 is a schematic view of an argon inlet component mounting structure according to the present invention.

Fig. 5 is a partial enlarged view of the invention at the a mark in fig. 4.

Fig. 6 is a partial enlarged view of the B mark in fig. 4 according to the present invention.

FIG. 7 is a schematic view showing a partial structure of an argon gas introducing part according to the present invention.

Fig. 8 is a partial installation schematic view of the turret according to the present invention.

Fig. 9 is a schematic structural view of a turret according to the present invention.

Reference numerals: 1-an outer cylinder; 2-a base; 101-opening and closing a door; 102-an eduction tube; 103-thinning plate; 104-a filter plate; 105-an inner cylinder; 106, discharging a liquid cylinder; 201-a base liquid outlet groove; 202-top plate; 203-a gear ring; 204-a heater; 205-liquid inlet pipe; 206-driving a motor; 208-belt structure one; 209-belt structure two; 210-centrifuge rack; 211-rotating frames; 2111-a stent; 2112-stent release port; 212-lifting racks; 213-salvaging plate; 214-a connecting cylinder; 215-gear one; 216-gear two; 217-gear three; 218-gear four; 219-belt structure three; 220-connecting rod; 221-a breather pipe; 2211-a branch pipe; 222-fixed gear; 223-meshing gear; 224-release tube; 2241-release port.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1 and 2, the bottom of the outer cylinder 1 is provided with a delivery pipe 102 for delivering filtered molten steel, an inner cylinder 105 is arranged in the outer cylinder 1, a dredging plate 103 for dredging filter residues is arranged between the outer cylinder 1 and the inner cylinder 105, and the dredging plate 103 is spiral; a filter plate 104 for filtering filter residues is also arranged between the outer cylinder 1 and the inner cylinder 105; the outer cylinder 1 is also provided with a switch door 101, and filter residues filtered by the filter plates 104 can be cleaned by opening the switch door 101; a liquid outlet cylinder 106 is arranged in the inner cylinder 105 and is used for releasing the treated molten steel; the inner cylinder 105 is provided with a base 2 inside.

As shown in fig. 3 and 4, a base liquid outlet tank 201 is arranged on a base 2, molten steel enters a liquid outlet barrel 106 from the base liquid outlet tank 201, a connecting barrel 214 is fixedly connected to the base 2, a top plate 202 is fixedly connected to the top of the connecting barrel 214, a liquid inlet pipe 205 for feeding molten steel is arranged on the top plate 202, a driving motor 206 is fixedly arranged on the top plate 202, a first belt structure 208 and a second belt structure 209 are connected to the driving motor 206, the first belt structure 208 is used for driving a salvaging assembly, and the second belt structure 209 is used for driving argon gas inlet components.

As shown in fig. 4, 7, 8 and 9, for the argon gas inlet component, the argon gas inlet component comprises a rotating frame 211 and a vent pipe 221, the vent pipe 221 is connected with one end of a second belt structure 209, the vent pipe 221 is driven to rotate by the second belt structure 209, the vent pipe 221 is hollow, the vent pipe 221 is used for conveying argon gas, a plurality of branch pipes 2211 are arranged at one end of the vent pipe 221, which is positioned in the connecting cylinder 214, a meshing gear 223 is fixedly connected to the branch pipes 2211, a fixed gear 222 is fixedly connected to a base liquid outlet tank 201, and the fixed gear 222 is meshed with the meshing gear 223; the rotating frame 211 is rotatably arranged on the connecting cylinder 214, a heater 204 for heating is fixedly arranged on the rotating frame 211, and a centrifugal frame 210 is fixedly connected on the heater 204; the rotating frame 211 is fixedly connected with a plurality of brackets 2111, a bracket release opening 2112 is formed in the bottom of each bracket 2111, a release pipe 224 is rotatably arranged in each bracket 2111, and a release opening 2241 is formed in each release pipe 224; the rotation of the rotation frame 211, the heater 204, and the centrifugal frame 210 is performed by the rotation of the ventilation pipe 221.

As shown in fig. 3, 5 and 6, for the residue salvaging component, including several salvaging assemblies, the gear ring 203 is rotatably mounted on the top plate 202; the salvage assembly comprises salvage plates 213, a plurality of salvage plates 213 are spliced into a circular ring area, the salvage assembly further comprises two lifting racks 212, the two lifting racks 212 are respectively and slidably mounted on the top plate 202, the number of gear teeth on the two lifting racks 212 is different, one ends of the two lifting racks 212 facing the salvage plates 213 are respectively and rotatably connected with a connecting rod 220, one ends of the connecting rods 220 are rotatably connected with the salvage plates 213, the salvage plates 213 are driven to move upwards through the lifting racks 212 so as to salvage filter residues, and the salvaged filter residues are thrown into the dredging plates 103 through the inclined deflection of the salvage plates 213; a gear set is arranged on the plurality of fishing assemblies and is meshed with the gear ring 203, and the gear set rotates through the gear ring 203 to drive the plurality of fishing assemblies; the gear set comprises a first gear 215 rotatably arranged on the top plate 202, the first gear 215 and the gear ring 203 form a gear pair, a second gear 216 is fixedly connected to the first gear 215, the gear set also comprises a fourth gear 218 rotatably arranged on the top plate 202, the fourth gears 218 are respectively meshed with the two lifting racks 212, a third gear 217 is fixedly connected to one of the fourth gears 218, the third gear 217 is meshed with the second gear 216, and the fourth gears 218 are connected through a third belt structure 219; one end of the first belt structure 208 is connected to a first gear 215 on one of the fishing assemblies to drive the plurality of fishing assemblies; in the above description, the belt structure one 208, the belt structure two 209 and the belt structure three 219 are all belt transmission structures, and are each composed of two pulleys and one belt.

In carrying out the invention:

molten steel is thrown into the inner cylinder 105 through the liquid inlet pipe 205, argon is transmitted into the inner cylinder 105 through one end of the vent pipe 221, namely, the argon passes through the vent pipe 221, then passes through the branch pipe 2211 and the release pipe 224, and finally is released through the release port 2241; after molten steel enters the inner cylinder 105, the rotating frame 211, the heater 204 and the centrifugal frame 210 are all rotated under the transmission of a belt through the operation of the driving motor 206; under the connection of the gear pair of the meshing gear 223 and the fixed gear 222, the release pipe 224 rotates in the bracket 2111, and when the bracket release port 2112 coincides with the release port 2241, argon gas is released, so that intermittent release is realized; the argon is blown into molten steel in a dispersing way by using an argon blowing technology to form tiny bubbles, and particles mixed in the molten steel are adsorbed on the surface by means of interfacial tension when the bubbles float upwards and then float on the liquid surface of the molten steel.

When the rotating frame 211 rotates, the heater 204 and the centrifugal frame 210 rotate along with each other, the heater 204 is used for heating to prevent molten steel from cooling and solidifying, and the centrifugal frame 210 rotates to throw filter residues floating on the liquid surface to the peripheral area of the liquid surface; molten steel enters the liquid outlet barrel 106 through the base liquid outlet groove 201 to finish release; when the bracket 2111 rotates, it is intermittently overlapped with the base liquid outlet groove 201, so that the purpose of intermittent release of molten steel can be achieved, and when the bracket 2111 is overlapped with the base liquid outlet groove 201, the opening of the base liquid outlet groove 201 is relatively reduced, that is, the outflow rate of molten steel is slow, the residence time of molten steel in the inner barrel 105 can be relatively increased, so as to improve the removal efficiency of filter residues.

Driven by the first belt structure 208, the first gear 215 on one of the fishing assemblies rotates, and the gear meshes to rotate the gear ring 203, so that a plurality of fishing assemblies are driven simultaneously; under the connection of the gear pair, the third gear 217 and the fourth gear 218 rotate, and under the meshing of the gears and racks, the two lifting racks 212 slide, so that the salvage plate 213 moves upwards, the filter residues in the molten steel can be salvaged in an ascending path, and when the salvage plate 213 is separated from the liquid level, the filter residues at the periphery of the liquid level are salvaged; because the number of the gear teeth on the two lifting racks 212 is different, after the lifting racks 212 are separated from the liquid level, the lifting racks 212 positioned on the outer side are disengaged from the corresponding gears 218 in advance, and the lifting racks 212 positioned on the inner side are continuously engaged with the corresponding gears 218, at the moment, under the connection action of the connecting rod 220, the fishing plate 213 is inclined and deflected, namely, the two inner sides and the outer sides of the fishing plate 213 have height differences, the outer sides are relatively lower, filter residues fall into the dredging plate 103 in the inclined state of the fishing plate 213, the dredging plate 103 is spiral, the filter residues in all directions can be dredged, the filter residues and part of the salvaged molten steel flow in the dredging plate 103 together, and when the filter plate 104 passes through, the filter residues are blocked, and the molten steel is guided out from the guide pipe 102; finally, an operator can open the switch door 101 to clean filter residues filtered by the filter plates 104.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a molten steel filter equipment is used in anchor sprocket casting, includes urceolus (1), and the inside of urceolus (1) is provided with inner tube (105), its characterized in that:

a dredging plate (103) for dredging filter residues is arranged between the outer cylinder (1) and the inner cylinder (105), the dredging plate (103) is spiral, a filter plate (104) for filtering the filter residues is also arranged between the outer cylinder (1) and the inner cylinder (105), and the filter plate (104) is positioned on a dredging path of the dredging plate (103);

a base (2) is arranged in the inner cylinder (105), a base liquid outlet groove (201) is formed in the base (2), and an argon gas inlet component and a filter residue salvaging component are arranged on the base (2); the argon gas introducing component comprises a rotating frame (211) and a vent pipe (221), a plurality of brackets (2111) are fixedly connected to the rotating frame (211), bracket release openings (2112) are formed in the bottoms of the brackets (2111), release pipes (224) are rotatably arranged in the brackets (2111), release openings (2241) are formed in the release pipes (224), the vent pipe (221) is used for conveying argon gas, the vent pipe (221) is hollow, a plurality of branch pipes (2211) are communicated with the bottom ends of the vent pipe (221), and the branch pipes (2211) are communicated with the release pipes (224); a heater (204) for heating is fixedly arranged on the rotating frame (211), and a centrifugal frame (210) is fixedly connected to the heater (204);

the filter residue salvaging component comprises a plurality of salvaging components, the salvaging components comprise salvaging plates (213), the plurality of salvaging plates (213) are spliced into a circular ring area, the salvaging components further comprise two lifting racks (212), the number of gear teeth on the two lifting racks (212) is different, the two lifting racks (212) are respectively and rotatably connected with a connecting rod (220) towards one end of the salvaging plates (213), one end of the connecting rod (220) is rotatably connected with the salvaging plates (213), the salvaging plates (213) are driven to ascend through the lifting racks (212) so as to salvage filter residues, and the salvaged filter residues are obliquely deflected to be thrown into the dredge plates (103).

2. The molten steel filtering device for casting a anchor sprocket according to claim 1, wherein: the base (2) is fixedly connected with a connecting cylinder (214), the connecting cylinder (214) is fixedly connected with a top plate (202), the filter residue salvaging component is arranged on the top plate (202), and the argon gas introducing component is arranged on the connecting cylinder (214).

3. The molten steel filtering device for casting a anchor sprocket according to claim 2, wherein: the argon gas inlet component further comprises a fixed gear (222) fixedly arranged on the base (2), the top of the vent pipe (221) is rotatably arranged on the liquid inlet pipe (205), the vent pipe (221) is positioned in the connecting cylinder (214), the branch pipe (2211) is fixedly connected with a meshing gear (223), and the meshing gear (223) is meshed with the fixed gear (222); the rotating frame (211), the heater (204) and the centrifugal frame (210) are respectively rotatably mounted on the connecting cylinder (214) and rotated through the ventilating pipe (221) so as to enable the rotating frame (211), the heater (204) and the centrifugal frame (210) to be linked.

4. The molten steel filtering device for casting a anchor sprocket according to claim 2, wherein: the filter residue salvaging component comprises a gear ring (203) rotatably arranged on a top plate (202), a plurality of salvaging components are provided with gear sets, the gear sets are meshed with the gear ring (203), and the gear rings (203) are rotated to drive the plurality of salvaging components.

5. The molten steel filtering device for casting a anchor sprocket according to claim 4, wherein: the fishing assembly comprises a first gear (215) rotatably mounted on the top plate (202), the first gear (215) and the gear ring (203) form a gear pair, a second gear (216) is fixedly connected to the first gear (215), the fishing assembly further comprises a fourth gear (218) rotatably mounted on the top plate (202), the fourth gear (218) is meshed with the lifting racks (212) respectively, the lifting racks (212) are slidably mounted on the top plate (202) respectively, a third gear (217) is fixedly connected to one of the fourth gears (218), the third gear (217) is meshed with the second gear (216), and the fourth gears (218) are connected through a third belt structure (219).