Silicon molybdenum rod raw material mixing and screening device facilitating replacement of screen

Abstract

The utility model discloses a silicon molybdenum rod raw material mixing and screening device convenient to replace screen, including support, and discharge mechanism, support: its upper end front side fixedly connected with mixing bucket, and the rotation is connected with the pivot between the front and back two side walls of mixing bucket, and the outside of pivot is fixedly connected with the screw belt of even distribution through support rod, discharge mechanism: it includes discharge gate and baffle, and the discharge gate sets up in the outer arc surface lower extreme of mixing bucket, and the inside of discharge gate is provided with the support strip of left and right symmetry distribution, and the upper end between two support strips is fixedly connected with the filter screen, and the inside slide coupling of discharge gate has the baffle, and the whole of support strip and filter screen is located the upper end of baffle, still include control switch, control switch set up in the rear end of support, and the input of control switch electricity is connected external power supply, this silicon molybdenum rod raw material mixing and screening device convenient to replace screen, through fixed axle fixed filter screen, and draw out fixed axle can take down filter screen, and it is convenient to replace.

Description

Technical Field

[0001] This utility model relates to the technical field of silicon molybdenum rod raw material screening devices, specifically a silicon molybdenum rod raw material mixing and screening device that facilitates screen replacement. Background Technology

[0002] Silicon molybdenum rods are key resistance heating elements widely used in high-temperature industrial furnaces. In high-temperature air environments, a dense silica glassy protective film automatically forms on their surface, effectively isolating them from oxygen corrosion, allowing them to operate at temperatures up to 1700-1800°C under oxidizing atmospheres. With their extremely high operating temperature, excellent oxidation resistance, good chemical stability, and long service life, silicon molybdenum rods have become the ideal choice for heating elements in high-temperature oxidizing atmospheres, and are widely used in materials research and development, high-temperature processing, and heat treatment.

[0003] Before preparing silicon molybdenum rods, tungsten and molybdenum raw materials need to be proportioned, mixed, and sieved. The mixed raw materials are then ground again in a ball mill. Some existing sieve equipment requires replacement of aged filters or cleaning due to filter clogging after long-term use. Since the filters are fixed inside the equipment, disassembling and assembling them is troublesome. Therefore, we propose a silicon molybdenum rod raw material mixing and sieving device that facilitates screen replacement. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a silicon molybdenum rod raw material mixing and screening device that facilitates screen replacement. The filter screen is fixed by a fixed shaft, and the filter screen can be removed by pulling out the fixed shaft, which is convenient for replacement and can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a silicon molybdenum rod raw material mixing and screening device that facilitates screen replacement, including a support and a discharge mechanism; Support frame: A mixing tank is fixedly connected to the front of the upper end of the support frame. A rotating shaft is rotatably connected between the front and rear side walls of the mixing tank. Evenly distributed threaded ribbons are fixedly connected to the outside of the rotating shaft through a support rod. Discharge mechanism: It includes a discharge port and a blocking plate. The discharge port is located at the lower end of the outer arc surface of the mixing tank. The discharge port is provided with symmetrically distributed support bars. A filter screen is fixedly connected between the upper ends of the two support bars. The blocking plate is slidably connected inside the discharge port. The support bars and the filter screen are located at the upper end of the blocking plate. The filter screen is fixed by a fixed shaft. The filter screen can be removed by pulling out the fixed shaft for easy replacement.

[0006] Furthermore, it also includes a control switch, which is located at the rear end of the bracket. The input terminal of the control switch is electrically connected to an external power source to control the motor.

[0007] Furthermore, a motor is fixedly connected to the upper rear side of the bracket, the front end of the motor's output shaft is fixedly connected to the rear end of the rotating shaft, and the input end of the motor is electrically connected to the output end of the control switch to drive the screw ribbon to rotate.

[0008] Furthermore, the discharge mechanism also includes a fixed shaft, which is inserted into the openings on the left and right sides of the discharge port. The fixed shaft passes through the through holes in the middle of the adjacent support bars. Nuts are threaded to both ends of the fixed shaft to fix the support bars.

[0009] Furthermore, the discharge mechanism also includes a fixed block, a pressure plate, a lever, and a positioning block. The positioning blocks are symmetrically fixedly connected to the front side of the block plate. Fixed blocks are fixedly connected to both sides of the discharge port. A lever is rotatably connected to the middle of each fixed block. A pressure plate is provided in the middle of each lever. The rear side of the pressure plate is respectively attached to the front side of the adjacent positioning block to fix the block plate.

[0010] Furthermore, sliding strips are fixedly connected between the inner walls of the left and right sides of the discharge port, and the blocking plate is slidably connected between the upper ends of the two sliding strips to facilitate the insertion and removal of the blocking plate.

[0011] Furthermore, the rear end of the mixing tank is tilted upward to create convection.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This silicon molybdenum rod raw material mixing and screening device, which facilitates screen replacement, has the following advantages: After the silicon molybdenum rod raw material is mixed evenly, the lever is rotated to drive the pressure plate to rotate and remove the blocking plate. The mixed raw material is screened through the filter screen. After the small particles of raw material are completely screened, the fixed shaft can be pulled out by removing the nut at the front end of the fixed shaft. Then the whole assembly of the support bar and the filter screen will fall off automatically. The remaining large particles of raw material and impurities are discharged from the outlet. The process of disassembling and assembling the filter screen is very simple and easy to replace. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded cross-sectional view of the material discharge mechanism of this utility model; Figure 3 This is a partial cross-sectional structural diagram of the material discharge mechanism of this utility model.

[0014] In the diagram: 1. Support frame, 2. Mixing tank, 3. Control switch, 4. Screw, 5. Rotating shaft, 6. Motor, 7. Discharge mechanism, 71. Discharge port, 72. Fixing block, 73. Pressure plate, 74. Lever, 75. Fixing shaft, 76. Blocking plate, 77. Positioning block, 8. Filter screen, 9. Support bar, 10. Sliding bar. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-3 This embodiment provides a technical solution: a silicon molybdenum rod raw material mixing and screening device that facilitates screen replacement, including a support 1 and a discharge mechanism 7; Support 1: A mixing tank 2 is fixedly connected to the front of its upper end. A rotating shaft 5 is rotatably connected between the front and rear side walls of the mixing tank 2. A uniformly distributed screw ribbon 4 is fixedly connected to the outside of the rotating shaft 5 through a support rod. A motor 6 is fixedly connected to the rear of the upper end of the support 1. The front end of the output shaft of the motor 6 is fixedly connected to the rear end of the rotating shaft 5. The input end of the motor 6 is electrically connected to the output end of the control switch 3. The rear end of the mixing tank 2 is tilted upward. The motor 6 is turned on by the control switch 3. The output shaft of the motor 6 drives the rotating shaft 5 to rotate, and the screw ribbon 4 rotates. From the front end, the screw ribbon 4 rotates counterclockwise, stirring the raw materials inside the mixing tank 2 and driving them upward. The rear end of the mixing tank 2 is tilted upward, and the raw materials slide down under the action of gravity, forming convection, making the mixing more uniform. Discharge mechanism 7: It includes a discharge port 71 and a blocking plate 76. The discharge port 71 is located at the lower end of the outer arc surface of the mixing tank 2. Symmetrically distributed support bars 9 are arranged inside the discharge port 71. A filter screen 8 is fixedly connected between the upper ends of two support bars 9. The blocking plate 76 is slidably connected inside the discharge port 71. The support bars 9 and the filter screen 8 form a whole located at the upper end of the blocking plate 76. The discharge mechanism 7 also includes a fixed shaft 75, which is inserted into the openings on the left and right sides of the discharge port 71. The fixed shaft 75 passes through the through holes in the middle of adjacent support bars 9. Nuts are threaded to both ends of the fixed shaft 75. Nuts are threaded to the inner walls on both sides of the discharge port 71. A sliding strip 10 is fixedly connected, and a blocking plate 76 is slidably connected between the upper ends of the two sliding strips 10. After the small particle mixed raw materials are completely screened, the motor 6 is turned off, the nut of the fixed shaft 75 is removed, the fixed shaft 75 is pulled out, and the whole assembly of the support strip 9 and the filter screen 8 falls off automatically. The large particle raw materials inside the mixing tank 2 fall from the discharge port 71, thus achieving screening. When replacing or re-inserting the whole assembly of the support strip 9 and the filter screen 8, the whole assembly of the support strip 9 and the filter screen 8 is placed inside the discharge port 71, the fixed shaft 75 is reinstalled, the blocking plate 76 is re-inserted through the positioning of the sliding strip 10, and the pressure plate 73 is rotated by the lever 74 to fix the blocking plate 76, thus completing the replacement. The discharge mechanism 7 also includes a fixed block 72, a pressure plate 73, a lever 74, and a positioning block 77. The positioning blocks 77 are symmetrically fixed to the front side of the block plate 76. Fixed blocks 72 are fixedly connected to both sides of the discharge port 71. A lever 74 is rotatably connected to the middle of each fixed block 72. A pressure plate 73 is provided in the middle of each lever 74. The rear side of the pressure plate 73 is in contact with the front side of the adjacent positioning block 77. After the mixture is evenly mixed, the lever 74 is rotated, the pressure plate 73 moves away from the adjacent positioning block 77, and the block plate 76 is pulled out. The mixed raw material flows out of the discharge port 71 after being screened by the filter screen 8. During this period, the motor 6 is kept running to prevent the upper end of the filter screen 8 from being blocked.

[0017] It also includes a control switch 3, which is located at the rear end of the bracket 1, and the input end of the control switch 3 is electrically connected to an external power source.

[0018] The working principle of the silicon molybdenum rod raw material mixing and screening device with easy screen replacement provided by this utility model is as follows: Push the silicon molybdenum rod raw material mixing and screening device with easy screen replacement to the processing position. Two directional casters with foot brakes are fixedly connected to the front end of the lower surface of the support 1 to facilitate straight movement. Two universal wheels with foot brakes are fixedly connected to the rear end of the lower surface of the support 1 to facilitate turning. After the tungsten and molybdenum raw materials are mixed in proportion, they are put into the inside of the mixing tank 2. The motor 6 is turned on by the control switch 3. The output shaft of the motor 6 drives the rotating shaft 5 to rotate, and the screw ribbon 4 rotates. From the front end, the screw ribbon 4 rotates counterclockwise, which stirs the raw materials inside the mixing tank 2 and drives them upward. The rear end of the mixing tank 2 is tilted upward, and the raw materials slide down under the action of gravity, forming convection, which makes the mixing more uniform. After the mixture is evenly mixed, rotate lever 74, press plate 73 moves away from adjacent positioning block 77, and pull out block plate 76. The mixed raw material flows out from outlet 71 after being screened by filter screen 8. During this period, motor 6 remains running to prevent material blockage at the top of filter screen 8. After the small particles of mixed raw materials are completely screened, turn off the motor 6, remove the nut of the fixed shaft 75, pull out the fixed shaft 75, and the whole assembly of the support bar 9 and the filter screen 8 will fall off automatically. The large particles of raw materials inside the mixing tank 2 will fall from the discharge port 71, thus achieving screening. When replacing or re-inserting the entire assembly of support bar 9 and filter screen 8, place the entire assembly of support bar 9 and filter screen 8 into the discharge port 71, reinstall the fixed shaft 75, re-insert the block plate 76 through the positioning of slide bar 10, and drive the pressure plate 73 to rotate through lever 74 to fix the block plate 76, thus completing the replacement.

[0019] It is worth noting that the motor 6 disclosed in the above embodiments can be a GRTA series motor, and the motor 6 is provided with a switch button corresponding to the motor 6 for controlling its switching operation.

[0020] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A molybdenum-silicon rod raw material mixing and screening device with a screen that is easy to replace, characterized in that: Includes a support frame (1) and a discharge mechanism (7); Support (1): A mixing tank (2) is fixedly connected to the front side of its upper end. A rotating shaft (5) is rotatably connected between the front and rear side walls of the mixing tank (2). A uniformly distributed screw ribbon (4) is fixedly connected to the outside of the rotating shaft (5) through a support rod. Discharge mechanism (7): It includes discharge port (71) and block plate (76). The discharge port (71) is located at the lower end of the outer arc surface of the mixing tank (2). The discharge port (71) is provided with support bars (9) symmetrically distributed on the left and right. A filter screen (8) is fixedly connected between the upper ends of the two support bars (9). The block plate (76) is slidably connected inside the discharge port (71). The whole consisting of the support bars (9) and the filter screen (8) is located at the upper end of the block plate (76).

2. The molybdenum-silicon rod raw material mixing and screening device with screen replacement facilitated according to claim 1, characterized in that: It also includes a control switch (3), which is located at the rear end of the bracket (1), and the input end of the control switch (3) is electrically connected to an external power source.

3. The molybdenum-silicon rod raw material mixing and screening device with screen replacement facilitated according to claim 2, characterized in that: A motor (6) is fixedly connected to the upper rear side of the bracket (1). The front end of the output shaft of the motor (6) is fixedly connected to the rear end of the rotating shaft (5). The input end of the motor (6) is electrically connected to the output end of the control switch (3).

4. The molybdenum-silicon rod raw material mixing and screening device with screen replacement facilitated according to claim 1, characterized in that: The discharge mechanism (7) also includes a fixed shaft (75), which is inserted into the openings on the left and right sides of the discharge port (71). The fixed shaft (75) passes through the through holes in the middle of the adjacent support bars (9), and nuts are threaded to both ends of the fixed shaft (75).

5. The molybdenum-silicon rod raw material mixing and screening device with screen replacement facilitated according to claim 1, characterized in that: The discharge mechanism (7) also includes a fixed block (72), a pressure plate (73), a lever (74) and a positioning block (77). The positioning blocks (77) are symmetrically fixed to the front side of the blocking plate (76). Fixed blocks (72) are fixedly connected to both sides of the discharge port (71). A lever (74) is rotatably connected to the middle of each fixed block (72). A pressure plate (73) is provided in the middle of each lever (74). The rear side of the pressure plate (73) is in contact with the front side of the adjacent positioning block (77).

6. The silicon molybdenum rod raw material mixing and screening device with easily replaceable screen according to claim 1, characterized in that: Slides (10) are fixedly connected between the inner walls of the left and right sides of the discharge port (71), and the blocking plate (76) is slidably connected between the upper ends of the two slides (10).

7. The molybdenum-silicon rod raw material mixing and screening device with screen replacement facilitated according to claim 1, characterized in that: The rear end of the mixing tank (2) is tilted upward.

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