Forming equipment for casting powder particles of special-shaped blank continuous casting crystallizer

Abstract

The utility model relates to the field of casting powder particle forming equipment, in particular to special-shaped blank continuous casting crystallizer casting powder particle forming equipment, and solves the technical problems that after crystallizer casting powder is formed through a prilling tower, discharged materials have high residual temperature, and large-scale storage is not facilitated; according to the technical scheme, the casting powder particle forming equipment for the special-shaped blank continuous casting crystallizer comprises a drying tower, a high-pressure atomizer, an air distributor, a cyclone separator, a discharging opening, a hoop, an auxiliary heating ring, a heat dissipation assembly and a material dispersing assembly. One side of the drying tower is provided with an auxiliary heating ring surrounding the outside of the liquid casting powder raw material conveying pipe, and one side of the discharging port is provided with a heat dissipation assembly and a material dispersing assembly stretching into the discharging port; the heat dissipation assembly and the material scattering assembly are arranged at the discharging port of the drying tower, formed casting powder finished products can be scattered and cooled in an air cooling mode, the casting powder obtained after heat dissipation is conveniently stored as soon as possible, and the adverse effect on hot storage of the casting powder is reduced.

Description

Technical Field

[0001] The utility model relates to the field of mold powder granulation equipment, in particular to a special-shaped billet continuous casting mold powder granulation equipment. Background Art

[0002] In industrial production, the continuous casting special-shaped billet is the most ideal blank for producing profiles, with excellent mechanical properties and superior service performance. The special-shaped billet continuous casting mold is the core component of the continuous casting machine design. When using a continuous casting machine to manufacture special-shaped billets, mold powder is required as a lubricating material inside the mold. The indicators for measuring the quality of mold powder include viscosity, melting speed, lubrication and thermal conductivity of the slag film, stability, etc. The mold powder directly affects the surface quality of the special-shaped billet. Therefore, the production quality standard requirements for mold powder are very high.

[0003] The mold powder for the mold basically takes the SiO2-CaO-Al2O3 ternary system as the basis, and various fluxes, skeleton materials, and heating materials are added to prepare molten slag, or powdery and granular solid slag. The preparation of solid slag mainly involves pulping the composition materials of various mold powders first, and then sending the slurry to a drying granulation tower through a pumping device for spray granulation. After the spray drying granulation tower discharges, the mold powder still has a relatively high residual temperature, which is very unfavorable for large-scale storage. The internal heat is easy to accumulate and not dissipate for a long time, which has an adverse effect on the final physical properties of the mold powder.

[0004] Therefore, aiming at the situation that the mold powder for the mold has a relatively high residual temperature after being formed by the granulation tower and is not conducive to large-scale storage, a device that cooperates with the granulation tower to cool the discharged mold powder can be designed to quickly dissipate heat and cool the mold powder when it comes out of the granulation tower. Summary of the Utility Model

[0005] In order to overcome the problem that the mold powder for the mold has a relatively high residual temperature after being formed by the granulation tower and is not conducive to large-scale storage.

[0006] The technical solution of the utility model is: a special-shaped billet continuous casting mold powder granulation equipment, which includes a drying tower, a high-pressure atomizer, an air distributor, a cyclone separator, a discharge port, a clamp, an auxiliary heating ring, a heat dissipation component, and a material scattering component; a high-pressure atomizer connected to the liquid mold powder raw material conveying unit is installed at the upper end of the drying tower, an air distributor connected to the high-pressure atomizer is installed on one side of the drying tower, a discharge port is arranged at the bottom of the drying tower and a cyclone separator connected to the discharge port is installed, a clamp is clamped and installed on the drying tower, an auxiliary heating ring surrounding the outside of the liquid mold powder raw material conveying pipe is arranged on one side of the drying tower, and a heat dissipation component and a material scattering component extending into the discharge port are arranged on one side of the discharge port.

[0007] Preferably, air is filtered and heated and then enters the top air distributor. The hot air enters the drying tower in a spiral and uniform manner. The powder flux material liquid passes through the high-pressure atomizer at the top of the tower body and is sprayed into extremely fine mist-like liquid droplets. It comes into countercurrent contact with the air and can be dried into the finished powder flux product in a very short time. The finished product is continuously output from the bottom of the drying tower and the cyclone separator. The dust materials are collected by the pulse bag collector, and the waste gas is exhausted by the fan. The discharged finished powder flux product is scattered by the bulk material component, and the heat dissipation component is used to accelerate the cooling of the powder flux.

[0008] Preferably, the auxiliary heating ring is a copper ring pipe with heating resistance wires arranged longitudinally inside, and several are arranged longitudinally. The auxiliary heating rings are connected by longitudinal rods and clamps. After the heating resistance wires are electrified, they heat up and transfer heat outward through the copper ring pipe to the powder flux material liquid conveying pipe to maintain the temperature of the powder flux material liquid.

[0009] Preferably, a suspension rod is arranged above the discharge port. The upper end of the suspension rod is fixedly connected with a slider. A ring groove is formed on the outer side wall of the clamp. The slider is movably connected in the ring groove. The slider can rotate and move along the ring groove. Through the connection of the suspension rod, the positions of the heat dissipation component and the bulk material component can be adjusted, which is flexible and convenient to use.

[0010] Preferably, pin holes are formed at the upper ends of the slider and the clamp. A pin is inserted into the pin holes to lock the clamp and the slider. After the slider moves to a suitable position, the pin is inserted into the corresponding pin hole to fix the slider and lock the heat dissipation component and the bulk material component at the same time.

[0011] Preferably, the heat dissipation component includes a wind ring and wind holes; the wind ring is arranged on one side of the discharge port. The wind ring is a ring-shaped metal pipe with a hollow structure and is connected to an external fan through a hose. Oblique wind holes facing the discharge port are formed on the outer side wall of the wind ring. The external fan conveys the air flow into the wind ring and blows it obliquely to the discharge port through the wind holes to dissipate heat and cool the discharged powder flux particles.

[0012] Preferably, the bulk material component includes a ferrule, a bracket, and an end plate; there are four groups of ferrules and they are clamped on the wind ring in a cross-symmetrical shape. One side of the ferrule is fixedly connected to one end of the bracket. An end plate is fixedly connected between the other ends of the brackets. The end plate is fixedly connected to the lower end of the suspension rod. The ferrule is used to clamp and fix the wind ring, and under the connection structure of the suspension rod and the end plate, the wind ring is kept at the discharge port.

[0013] Preferably, the bulk material component further includes a motor and a swirler; the motor is installed on the end plate and the transmission shaft of the motor is fixedly connected to the swirler. The swirler is of a conical structure and extends into the discharge port. The motor drives the swirler to rotate at a high speed. The powder flux particles in contact with the swirler are thrown outward under the action of centrifugal force, and the gaps between the particles increase, which is convenient for heat dissipation.

[0014] The beneficial effects of the present utility model:

[0015] 1. By providing a heat dissipation component and a material scattering component at the discharge port of the drying tower, the formed mold powder finished product can be scattered and cooled by air cooling. After heat dissipation, the mold powder is convenient to store as soon as possible, reducing the adverse effects caused by storing the mold powder while it is still hot.

[0016] 2. The auxiliary heating ring is used to assist in heating the mold powder liquid through the conveying pipe, maintaining the temperature of the liquid during the conveying process to ensure the atomization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shows the first three-dimensional structure schematic diagram of the special-shaped billet continuous casting mold powder particle forming equipment of the present utility model;

[0018] Figure 2 Shows the second three-dimensional structure schematic diagram of the special-shaped billet continuous casting mold powder particle forming equipment of the present utility model;

[0019] Figure 3 Shows the third three-dimensional structure schematic diagram of the special-shaped billet continuous casting mold powder particle forming equipment of the present utility model;

[0020] Figure 4 Shows the three-dimensional structure schematic diagram of the clamp of the special-shaped billet continuous casting mold powder particle forming equipment of the present utility model;

[0021] Figure 5 Shows the three-dimensional structure schematic diagram of the heat dissipation component and the material scattering component of the special-shaped billet continuous casting mold powder particle forming equipment of the present utility model;

[0022] Figure 6 Shows the three-dimensional structure schematic diagram of the suspension rod and the material scattering component of the special-shaped billet continuous casting mold powder particle forming equipment of the present utility model.

[0023] Description of the reference numerals: 1. Drying tower; 2. High-pressure atomizer; 3. Air distributor; 4. Cyclone separator; 5. Discharge port; 6. Clamp; 7. Auxiliary heating ring; 10. Suspension rod; 11. Slide block; 12. Ring groove; 13. Pin hole; 14. Pin; 801. Air ring; 802. Air hole; 901. Ferrule; 902. Bracket; 903. End plate; 904. Motor; 905. Spiral feeder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0025] Please refer to Figures 1 - 3, the present utility model provides an embodiment: a special-shaped billet continuous casting mold powder granulation equipment, which includes a drying tower 1, a high-pressure atomizer 2, an air distributor 3, a cyclone separator 4, a discharge port 5, a clamp 6, an auxiliary heating ring 7, a heat dissipation component, and a material scattering component; a high-pressure atomizer 2 connected to the liquid mold powder raw material conveying unit is installed at the upper end of the drying tower 1, an air distributor 3 connected to the high-pressure atomizer 2 is installed on one side of the drying tower 1, a discharge port 5 is arranged at the bottom of the drying tower 1 and a cyclone separator 4 communicated with the discharge port 5 is installed, a clamp 6 is clamped and installed on the drying tower 1, an auxiliary heating ring 7 surrounding the outside of the liquid mold powder raw material conveying pipe is arranged on one side of the drying tower 1, a heat dissipation component and a material scattering component extending into the discharge port 5 are arranged on one side of the discharge port 5. The air is filtered and heated and enters the top air distributor 3. The hot air enters the drying tower 1 evenly in a spiral shape. The mold powder liquid is atomized into extremely fine mist droplets by the high-pressure atomizer 2 at the top of the tower body, and can be dried into the finished mold powder in a very short time by flowing in parallel contact with the air. The finished product is continuously output from the bottom of the drying tower 1 and the cyclone separator 4. The dust materials are collected by the pulse bag collector, and the waste gas is exhausted by the fan. The discharged finished mold powder is scattered by the material scattering component, and the heat dissipation component is used to accelerate the cooling of the mold powder.

[0026] Please refer to Figures 1 - 4 , in this embodiment, the auxiliary heating ring 7 is a copper ring pipe internally provided with heating resistance wires and a plurality of them are longitudinally arranged. Each auxiliary heating ring 7 is connected to the clamp 6 through a longitudinal rod. After the heating resistance wires are energized, the temperature rises, and heat is radiated outward through the copper ring pipe to the mold powder liquid conveying pipe to maintain the temperature of the mold powder liquid.

[0027] Please refer to Figure 3 , 4 、6, in this embodiment, a suspension rod 10 is arranged above the discharge port 5. The upper end of the suspension rod 10 is fixedly connected with a slider 11. A ring groove 12 is formed on the outer side wall of the clamp 6. The slider 11 is movably slidably connected in the ring groove 12. The slider 11 can rotate and move along the ring groove 12. Through the connection of the suspension rod 10, the positions of the heat dissipation component and the material scattering component are adjusted, which is flexible and convenient to use. Pin holes 13 are formed at the upper ends of the slider 11 and the clamp 6. A pin 14 is inserted into the pin holes 13 to lock the clamp 6 and the slider 11. After the slider 11 moves to a suitable position, the pin 14 is inserted into the corresponding pin hole 13 to fix the slider 11, and at the same time, the heat dissipation component and the material scattering component are locked.

[0028] Please refer to Figure 3 、 5, in this embodiment, the heat dissipation component includes an air ring 801 and air holes 802; the air ring 801 is arranged on one side of the discharge port 5. The air ring 801 is a ring-shaped metal tube with a hollow structure and is connected to an external fan through a hose. Air holes 802 facing obliquely towards the discharge port 5 are formed on the outer side wall of the air ring 801. The external fan conveys an air flow into the air ring 801, and blows it obliquely through the air holes 802 to the discharge port 5, so as to dissipate heat and cool down the discharged mold powder particles.

[0029] Please refer to Figure 3 , 5 , 6, in this embodiment, the material scattering component includes a ferrule 901, a bracket 902, and an end plate 903; there are four groups of ferrules 901, which are clamped on the air ring 801 in a cross-symmetrical shape. One side of the ferrule 901 is fixedly connected to one end of the bracket 902, and an end plate 903 is fixedly connected between the other ends of the brackets 902. The end plate 903 is fixedly connected to the lower end of the suspension rod 10. The ferrule 901 is used to clamp and fix the air ring 801, and under the connection structure of the suspension rod 10 and the end plate 903, the air ring 801 is kept at the discharge port 5. The material scattering component further includes a motor 904 and a material spinner 905; the motor 904 is installed on the end plate 903, and the transmission shaft of the motor 904 is fixedly connected to the material spinner 905. The material spinner 905 is of a conical structure and extends into the discharge port 5. The motor 904 drives the material spinner 905 to rotate at a high speed, and the mold powder particles in contact with the material spinner 905 are thrown outward under the action of centrifugal force, and the gap between the particles increases, which is convenient for heat dissipation.

[0030] During operation, the air is filtered and heated, and then enters the top air distributor 3. The hot air enters the drying tower 1 in a spiral and uniform manner. The mold powder liquid is conveyed through a conveying pipe to the high-pressure atomizer 2 at the top of the tower body, and the temperature is maintained by the auxiliary heating ring 7 during the conveying process. The high-pressure atomizer 2 sprays the liquid into extremely fine mist-like liquid droplets, and can be dried into the finished mold powder product in a very short time by countercurrent contact with the air. The finished product is continuously output from the discharge port 5 at the bottom of the drying tower 1 and the cyclone separator 4, and the fine dust material is collected by the pulse bag collector;

[0031] Before the mold powder particles are collected, they collide with the material spinner 905 and are thrown outward under the action of centrifugal force, and the gap between the particles increases. At the same time, the external fan conveys an air flow into the air ring 801, and blows it obliquely through the air holes 802 to the discharge port 5, so as to dissipate heat and cool down the discharged mold powder particles.

[0032] Through the above steps, the heat dissipation component and the material scattering component arranged at the discharge port 5 of the drying tower 1 can break up and air-cool the formed finished mold powder product. The heat-dissipated mold powder is convenient to store as soon as possible, reducing the adverse effects caused by storing the mold powder with heat, so as to solve the problem that the discharged material of the mold powder for continuous casting has a relatively high residual temperature after being formed by the granulation tower, which is not conducive to large-scale storage.

[0033] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those skilled in the art.

Claims

1. An equipment for forming the particles of the mold powder for the continuous casting of special-shaped billets, comprising a drying tower (1), a high-pressure atomizer (2), an air distributor (3), and a cyclone separator (4); characterized in that: It further includes a discharge port (5), a clamp (6), an auxiliary heating ring (7), a heat dissipation assembly, and a material scattering assembly; a high-pressure atomizer (2) connected to the liquid mold powder raw material conveying unit is installed at the upper end of the drying tower (1), an air distributor (3) connected to the high-pressure atomizer (2) is installed on one side of the drying tower (1), a discharge port (5) is provided at the bottom of the drying tower (1), and a cyclone separator (4) connected to the discharge port (5) is installed. A clamp (6) is clamped and installed on the drying tower (1), an auxiliary heating ring (7) surrounding the outside of the liquid mold powder raw material conveying pipe is provided on one side of the drying tower (1), and a heat dissipation assembly and a material scattering assembly extending into the discharge port (5) are provided on one side of the discharge port (5).

2. The shaped blank continuous casting mold powder particle forming equipment according to claim 1, characterized in that: The auxiliary heating ring (7) is a copper ring pipe internally provided with heating resistance wires and several are arranged longitudinally. Each auxiliary heating ring (7) is connected to the clamp (6) through a longitudinal rod.

3. The special-shaped billet continuous casting mold powder particle forming equipment according to claim 1, characterized in that: A suspension rod (10) is provided above the discharge port (5). The upper end of the suspension rod (10) is fixedly connected with a slider (11). An annular groove (12) is formed on the outer side wall of the clamp (6), and the slider (11) is movably slidably connected in the annular groove (12).

4. The special-shaped billet continuous casting mold powder particle forming equipment according to claim 1, characterized in that: Pin holes (13) are formed at the upper ends of the slider (11) and the clamp (6). A pin (14) is inserted into the pin holes (13) to lock the clamp (6) and the slider (11).

5. The special-shaped billet continuous casting mold powder particle forming equipment according to claim 3, characterized in that: The heat dissipation assembly includes a wind ring (801) and wind holes (802); the wind ring (801) is arranged on one side of the discharge port (5). The wind ring (801) is a ring-shaped metal pipe with a hollow structure and is connected to an external fan through a hose. Obliquely facing the discharge port (5) wind holes (802) are formed on the outer side wall of the wind ring (801).

6. The shaped billet continuous casting mold powder particle forming equipment according to claim 5, characterized in that: The material scattering assembly includes a ferrule (901), a bracket (902), and an end plate (903); there are four groups of ferrules (901) which are clamped on the wind ring (801) in a cross-symmetrical shape. One side of the ferrule (901) is fixedly connected to one end of the bracket (902). An end plate (903) is fixedly connected between the other ends of the brackets (902), and the end plate (903) is fixedly connected to the lower end of the suspension rod (10).

7. The mold powder particle forming equipment for the special-shaped billet continuous casting according to claim 6, wherein: The material scattering assembly further includes a motor (904) and a material swirling device (905); the motor (904) is installed on the end plate (903), and the transmission shaft of the motor (904) is fixedly connected to the material swirling device (905). The material swirling device (905) is of a conical structure and extends into the discharge port (5).

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