Injection device for zirconium silicate bead production

Abstract

The utility model discloses a blowing device for producing zirconium silicate beads. The blowing device comprises a gas conveying pipe, a blowing pipe at the tail end of the gas conveying pipe and a nozzle at the upper end of the blowing pipe, the air delivery pipe and the blowing pipe form a high-pressure air passage; a supporting piece is arranged on the lower portion of the air conveying pipe, and a transverse moving mechanism and a vertical moving mechanism are arranged on the portion, below the air conveying pipe, of the rack. A rotating rod is fixedly arranged at the front part of the air delivery pipe, the upper end of the rotating rod is pointer-shaped, and the rotating rod is parallel to the blowing pipe; a fan-shaped disc with scales is arranged on the rear side of the rotating rod, and the rotating rod rotates to drive the gas conveying pipe to rotate, so that the angle of the blowing pipe is adjusted. The angle, the transverse position and the vertical position of the nozzle are adjusted through the rotating rod, the transverse moving mechanism and the longitudinal moving mechanism, so that the position distance between the nozzle and molten liquid is optimal, the forming rate, the sphericity, the uniformity and the proportion of the short supply specification of zirconium silicate bead products are improved, the rejection rate is reduced, and the production efficiency is improved. Product quality can be improved, production efficiency is improved, and energy and cost are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to zirconium silicate bead production technical field, concretely relates to a kind of spraying device for zirconium silicate bead production. BACKGROUND

[0002] Sandblasting technology is a kind of process widely used in surface polishing, hair making, toughening, cleaning, its core is to impact the workpiece surface by high-speed spraying abrasive medium, to achieve the purpose of removing dirt, oxide layer, burr, improving surface roughness, improving surface finish.The traditional sandblasting medium such as quartz sand, glass bead, alumina, although it can meet the demand of surface cleaning, polishing and strengthening to some extent, but there are limitations in hardness, wear resistance, chemical stability and service life etc.Zirconium silicate bead is a kind of high-performance sandblasting medium with zirconium silicate (ZrSiO4) as main component, with high hardness, smooth surface, strong wear resistance, high temperature resistance, corrosion resistance and other characteristics, widely used in workpiece surface treatment, cleaning, polishing, and precision parts machining etc.

[0003] At present, the production of zirconium silicate bead generally adopts spraying process, first mix raw materials uniformly, send into high-temperature furnace for high-temperature melting, then melt the zirconium silicate liquid into small droplets by high-speed airflow (such as compressed air or inert gas), the droplets form spherical shape naturally in flight process due to surface tension, and solidify rapidly in the air to form zirconium silicate bead, the particle size of zirconium silicate bead is different from tens of microns to thousands of microns, and the application scenarios of zirconium silicate beads of different sizes are different.After zirconium bead cooling and collecting, screening, grading and type selection treatment etc.processes are carried out, finished product zirconium silicate bead is obtained.In the existing zirconium silicate bead spraying production process, the height, position and angle of nozzle are fixed, but the pouring angle and flow trajectory of the melt coming out of the furnace are not fixed, therefore, the relative position, distance and angle between the airflow sprayed by nozzle and the falling melt will change, and different relative positions will have great influence on the product quality (such as sphericity, uniformity, scrap rate etc.) of zirconium silicate bead formed by spraying.Based on this, it is extremely necessary to design a kind of zirconium silicate bead production spraying device capable of adjusting spraying distance, angle and relative position direction. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a kind of zirconium silicate bead production spraying device capable of adjusting spraying distance, angle and relative position direction, which can adjust nozzle to the best angle and position in the spraying process, and is beneficial to improve the quality of zirconium silicate bead product and reduce scrap rate.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] The utility model designs a kind of zirconium silicate bead production with blowing device, including gas pipe, the gas pipe is connected with the corresponding connection of external air compressor, and the end of gas pipe is connected with blowing pipe, and the upper end of blowing pipe is provided with nozzle;Gas pipe and blowing pipe form high-pressure air passage;

[0007] Support is arranged at the lower part of gas pipe, and horizontal moving mechanism and vertical moving mechanism are arranged on the rack below gas pipe;Respectively for driving gas pipe horizontal movement and vertical movement;

[0008] Rotary bar is fixedly arranged at the front of gas pipe, and the upper end of rotary bar is pointer-shaped, and rotary bar is parallel with blowing pipe position;Fan-shaped disc is arranged at the back of rotary bar, and scale line for indicating angle is arranged at the outer edge of fan-shaped disc, and rotary bar rotation drives gas pipe rotation, to adjust the angle of blowing pipe.

[0009] In the above technical solution, by rotating the rotary bar, the gas pipe can be rotated to adjust the angle of the blowing pipe. By horizontal moving mechanism and vertical moving mechanism, the gas pipe can be moved horizontally and vertically to adjust the horizontal and vertical distance between the nozzle and the molten liquid. By adjusting the position in three dimensions of horizontal, vertical and angle, the nozzle can be adjusted to the optimal position at any time according to the different trajectories of the molten liquid, thereby ensuring the quality of zirconium silicate bead products.

[0010] Preferably, the horizontal moving mechanism includes a horizontal slide rail arranged on the rack, a sliding block arranged at the bottom of the support, and the sliding block is slidingly installed in the slide rail. A horizontal hydraulic cylinder is arranged on one side of the rack, and the front end of the extension rod of the horizontal hydraulic cylinder is fixedly connected with the support, for driving the support to move horizontally along the slide rail.

[0011] Preferably, the vertical moving mechanism includes a vertical hydraulic cylinder arranged below the rack, and the top end of the extension rod of the vertical hydraulic cylinder is fixedly connected with the rack, for driving the rack to move up and down.

[0012] Preferably, a metal scale is arranged on the outer side of the front end of the pipe wall of the blowing pipe, and a rack is arranged at equal intervals on the scale. The scale can be made of high-temperature-resistant metal strip, and the scale is arranged on one side of the front end of the blowing pipe and extends beyond the nozzle by a certain distance (the scale is on the outer side of the nozzle, and the molten liquid will not fall on the scale). When the molten liquid flows down, the metal scale serves as a reference, and the rack serves as a scale, so that the relative position between the molten liquid and the nozzle can be referred to, and the horizontal, vertical and angular position adjustment of the nozzle can be facilitated.

[0013] Preferably, two limit rods are arranged on the upper part of the support, and the gas pipe is arranged between the two limit rods. When the gas pipe is rotated, the limit rods can prevent the gas pipe from moving left and right, so that the gas pipe always remains between the two limit rods. Multiple sets of limit rods can be arranged to ensure the stability of the gas pipe during rotation.

[0014] Preferably, the upper part of the support is provided with a groove matched with the gas conveying pipe, and the lower part of the gas conveying pipe is arranged in the groove.

[0015] Preferably, the lower part of the fan-shaped disc is fixedly connected with the support through a fixing rod.

[0016] Preferably, a handle is arranged in the middle part of the rotating rod, so as to facilitate the gripping of the rotating rod.

[0017] The utility model discloses the beneficial effect lies in:

[0018] In the production process of zirconium silicate beads, we expect the product particle type to be as close to spherical as possible, and the size of the corresponding specification particle type to account for a high proportion. However, too far distance of the nozzle will increase the long strip-shaped particle type after blowing, and too close nozzle will increase the flat particle type, and the angle of the nozzle has great influence on the sphericity of the particle type and the required particle type specification. Therefore, the utility model changes the traditional blowing mode of fixed position and angle, designs a structure capable of adjusting the position and angle of the nozzle, and adjusts the angle, horizontal position and vertical position of the nozzle through control of the rotating rod, horizontal moving mechanism and vertical moving mechanism, so that the position distance of the nozzle and the molten liquid is optimal, thereby improving the forming rate, sphericity, uniformity and proportion of the tight specification of the zirconium silicate bead product, reducing the waste product rate, and having the advantages of improving product quality, improving production efficiency, saving energy and cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of the blowing device for zirconium silicate bead production of the utility model.

[0020] Figure 2 It is a structure schematic view of the blowing device for zirconium silicate bead production of the utility model. Figure 1 It is a side structure schematic view of the blowing device for zirconium silicate bead production.

[0021] Figure 3 It is a structure schematic view of another embodiment of the blowing device.

[0022] Figure 4 It is a reference schematic view of different positions of the nozzle, scale and molten liquid.

[0023] The figure mark: 1 gas pipe, 2 injection pipe, 3 nozzle;4 support, 5 rotating rod, 6 sector plate, 7 slide rail, 8 sliding block, 9 horizontal hydraulic cylinder, 10 vertical hydraulic cylinder, 11 scale, 12 rack, 13 limit rod, 14 rack, 15 fixed rod, 16 handle, 17 molten liquid, 18 connecting port. DETAILED DESCRIPTION

[0024] The specific embodiments of the present application will be described below in conjunction with the accompanying drawings and examples, but the following examples are only used to illustrate the embodiments of the present application in detail, and do not limit the scope of the present application in any way.

[0025] Example 1: a kind of injection device for zirconium silicate bead production, see Figure 1 、 Figure 2 , including gas pipe 1, gas pipe 1 and external air compressor corresponding connection, the end of gas pipe 1 is connected with injection pipe 2, the upper end of injection pipe 2 is provided with nozzle 3;Gas pipe 1 and injection pipe 2 constitute high pressure air passage. The connection mode between gas pipe 1 and air compressor is: the front end of gas pipe 1 is connected with external air compressor through flexible pipeline;Or the front end of gas pipe 1 is closed, and the connecting port 18 is formed on the side wall, and the connecting port 18 is connected with the external air compressor through the flexible pipeline. Flexible pipeline is used for connection, in order to facilitate the adjustment of the position of gas pipe.

[0026] Support 4 is arranged at the lower part of gas pipe 1, and horizontal moving mechanism and vertical moving mechanism are arranged on the rack 14 below the gas pipe 1;Respectively used to drive the horizontal movement and vertical movement of gas pipe 1.

[0027] In this embodiment, the horizontal moving mechanism and the vertical moving mechanism can adopt the following structure: the horizontal moving mechanism includes horizontal slide rail 7 arranged on the rack 14, sliding block 8 arranged at the bottom of support 4, and sliding block 8 slidingly installed in the slide rail 7;A horizontal hydraulic cylinder 9 is arranged on one side of the rack 14, the front end of the telescopic rod of the horizontal hydraulic cylinder 9 is fixedly connected with the support 4, and the horizontal hydraulic cylinder 9 is used to drive the support 4 to move horizontally along the slide rail, so as to adjust the horizontal position of the nozzle 3. The vertical moving mechanism includes vertical hydraulic cylinder 10 arranged below the rack 14, the top end of the telescopic rod of the vertical hydraulic cylinder 10 is fixedly connected with the rack 14, and the vertical hydraulic cylinder 10 is used to drive the rack 14 to move up and down, so as to adjust the height position of the nozzle 3. The horizontal moving mechanism and the vertical moving mechanism can also be realized by using other existing moving modes, which also belong to the protection scope of the present application.

[0028] Rotating rod 5 is fixedly arranged at the front part of gas pipe 1, the upper end of rotating rod 5 is in the form of a pointer, and rotating rod 5 is parallel to the position of injection pipe 2;The rear side of rotating rod 5 is provided with sector plate 6, and the outer side edge of sector plate 6 is provided with scale line for indicating angle. The lower part of sector plate 6 is fixedly connected with support 4 through fixed rod, so that sector plate 6 can move with support 4, and the angle pointed by the pointer is accurate.

[0029] Handle 16 is arranged at the middle of rotating rod 5 for convenient gripping. In the specific working process, the rear side of fan-shaped disc 6 is separated from the working area of the blowing process by a transparent high-temperature-resistant glass door, and both fan-shaped disc 6 and rotating rod 5 are located outside the glass door, so that the staff can see the position of nozzle 3 in the blowing chamber from the outside and can also operate and adjust the position of nozzle 3 from the outside. Fan-shaped disc 6 can also be made of transparent material.

[0030] Rotating rod 5 drives the rotation of gas conveying pipe 1, so as to adjust the angle of blowing pipe 2 and make the position distance and angle between the airflow blown by nozzle 3 and the molten liquid 17 flowing out of the furnace reach the most suitable position, so as to ensure that the spheroid rate of zircon silicate bead product is higher, the quality is more uniform, and the waste rate is lower.

[0031] Metal ruler 11 is arranged at the outer side of the front end of the wall of blowing pipe 2, and gear rack 12 is arranged equidistantly on ruler 11. Since the trajectory of each falling of the liquid cannot be fixed, the position angle between molten liquid 17 and nozzle 3 will change when molten liquid 17 flows out of the furnace, as shown in Figure 4 . Ruler 11 can be used as a reference, and gear rack 12 on ruler 11 is equivalent to a scale, so that the position and angle of nozzle 3 from the molten liquid can be seen, and then nozzle 3 is adjusted to the best position by horizontal moving mechanism, vertical moving mechanism and rotating rod 5. Ruler 11 is located outside blowing pipe 2, and the position of molten liquid 17 falling is inside ruler 11, so that molten liquid 17 will not fall on ruler 11.

[0032] Limiting rods 13 are arranged in pairs on the upper part of supporting member 4 and are arranged in parallel, and gas conveying pipe 1 is arranged between the two rows of limiting rods 2.

[0033] In example 2, a blowing device for producing zircon silicate beads, which is different from example 1, is provided, and the upper part of supporting member 4 is provided with a groove matched with gas conveying pipe 1, and the lower part of gas conveying pipe 1 is arranged in the groove, as shown in Figure 3 . The groove structure can be used alone or in combination with limiting rods 13 to further facilitate the limiting and prevent the position from deviating during the rotation of gas conveying pipe 1.

[0034] In the above examples, the device elements involved are all conventional device elements unless otherwise specified.

[0035] Through multiple tests, the inventors find that the best position of the nozzle is that the vertical distance between the nozzle and the molten liquid is 150-420 mm, and the horizontal distance between the nozzle and the molten liquid is 120-360 mm; and the best angle of the nozzle is 18°-36°.

[0036] The position distance and angle, the molding rate, the sphericity and the uniformity of the zirconium silicate beads obtained by the blowing are significantly improved, the waste rate is reduced, and the product quality and the production efficiency can be effectively improved, and energy can be saved.

[0037] The specific working mode of the blowing device for zirconium silicate bead production is as follows:

[0038] The raw material of the zirconium silicate bead is melted at high temperature and flows out from the melting furnace, and the high-pressure and high-speed gas is sprayed out from the nozzle through the gas conveying pipe and the blowing pipe, the melt is scattered into small droplets, the droplets are naturally formed into spherical shape in the flight process due to the surface tension effect, and are rapidly cooled and solidified in the air to form the zirconium silicate bead.

[0039] The above describes the embodiments of the utility model in detail in combination with the drawings and the examples, but the utility model is not limited to the above-mentioned embodiments, and can be changed or altered within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A jet-blowing device for producing zirconium silicate beads, characterized in that, The air conveying pipe is connected with an external air compressor, and a blowing pipe is connected to the end of the air conveying pipe, and a nozzle is arranged at the upper end of the blowing pipe; the air conveying pipe and the blowing pipe form a high-pressure air passage; A support is arranged at the lower part of the air conveying pipe, and a horizontal moving mechanism and a vertical moving mechanism are arranged on the rack below the air conveying pipe; the horizontal moving mechanism and the vertical moving mechanism are respectively used for driving the air conveying pipe to move horizontally and vertically; A rotating rod is fixedly arranged at the front part of the air conveying pipe, the upper end of the rotating rod is in the shape of a pointer, the rotating rod is parallel to the blowing pipe, a sector is arranged at the rear side of the rotating rod, scale lines for indicating angles are arranged at the outer edge of the sector, and the rotating rod drives the air conveying pipe to rotate, so as to adjust the angle of the blowing pipe.

2. The injection device for zirconium silicate bead production according to claim 1, characterized by The horizontal moving mechanism comprises horizontal sliding rails arranged on the rack, sliding blocks arranged at the bottom of the support, and the sliding blocks being slidingly installed in the sliding rails; a horizontal hydraulic cylinder is arranged at one side of the rack, the front end of the extension rod of the horizontal hydraulic cylinder is fixedly connected with the support, and the horizontal hydraulic cylinder is used for driving the support to move horizontally along the sliding rails.

3. The injection device for zirconium silicate bead production according to claim 2, characterized by The vertical moving mechanism comprises a vertical hydraulic cylinder arranged below the rack, and the top end of the extension rod of the vertical hydraulic cylinder is fixedly connected with the rack, and the vertical hydraulic cylinder is used for driving the rack to move up and down.

4. The injection device for zirconium silicate bead production according to claim 1, characterized by A metal scale is arranged at the front end of the outer side of the pipe wall of the blowing pipe, and a rack is equidistantly arranged on the scale.

5. The injection device for zirconium silicate bead production according to claim 1, characterized in that, Two pairs of limiting rods are arranged at the upper part of the support and are arranged in parallel, and the air conveying pipe is arranged between the two rows of limiting rods.

6. The injection device for zirconium silicate bead production according to claim 1 or 5, characterized in that, A groove matched with the air conveying pipe is arranged at the upper part of the support, and the lower part of the air conveying pipe is arranged in the groove.

7. The injection device for zirconium silicate bead production according to claim 1, characterized by The sector is fixedly connected with the support through a fixing rod.

8. The injection device for zirconium silicate bead production according to claim 1, characterized by A handle is arranged at the middle part of the rotating rod.

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