Raw material conveying device for silicon carbide smelting

Abstract

The utility model discloses a raw material conveying device for silicon carbide smelting, and relates to the technical field of silicon carbide smelting. The device comprises a smelting furnace, a furnace cover is connected to the upper surface of the smelting furnace, a feeding assembly arranged on the upper surface of the furnace cover comprises a feeding barrel and a cross beam, a hydraulic rod is connected to the lower surface of a lug connected to the peripheral side wall of the feeding barrel, and the lower end of a hydraulic cylinder connected to the lower end of the hydraulic rod is connected to the upper surface of the furnace cover; a discharging assembly is arranged on the upper surface of the feeding barrel. The positions of the feeding assembly, the discharging barrel and the connecting barrel are adjusted, so that the opening in the middle of the furnace cover is always in a sealed state, a dust falling assembly does not need to be additionally arranged, dust falling operation steps are reduced, the discharging assembly is arranged, raw materials for silicon carbide smelting are stirred through the stirring frame and the stirring shaft, the raw materials for silicon carbide smelting are prevented from caking, and the production efficiency is improved. And raw materials for silicon carbide smelting are discharged more smoothly.

Description

Technical Field

[0001] The utility model belongs to the technical field of silicon carbide smelting, in particular to a raw material conveying device for silicon carbide smelting. Background Art

[0002] Silicon carbide smelting refers to the process of producing silicon carbide by melting raw materials such as quartz sand and petroleum coke at high temperature. During the silicon carbide smelting process, it is necessary to control the silicon carbide raw material conveying device to transport the raw materials for silicon carbide smelting.

[0003] After searching, the patent document with patent publication number CN212374287U discloses a silicon carbide raw material conveying device, which includes a silo, a pair of active rollers, a plurality of driven roller groups, and a conveyor belt. The conveyor belt is a circulating conveyor belt. The pair of active rollers are located inside the circulating conveyor belt and are in close contact with it. One active roller is located below the silo discharge port and is fixed with a drive motor. The plurality of driven roller groups are located between the pair of active rollers. The driven roller group includes three driven rollers, and the three driven rollers form an inverted isosceles trapezoidal structure with a large outer opening and a small inner opening. Compared with the prior art, the utility model configures the driven roller group below the conveyor belt into three small driven rollers, and the three rollers are configured in a concave shape. In this way, when the conveyor belt is placed on the rollers, the middle part of the conveyor belt is concave inward, and the silicon carbide raw material will not easily roll off the conveyor belt in the middle concave part of the conveyor belt, thereby preventing the waste of raw materials.

[0004] However, it still has the following disadvantages in actual use:

[0005] 1. The above-mentioned silicon carbide raw material conveying device has a nozzle fixed on the silo wall at the silo discharge port, the nozzle is connected to the water inlet pipe, and a first valve is provided on the nozzle. When the silo material is discharged, dust is likely to be generated in the process of the material falling from the discharge port to the transmission belt. Opening the first valve can reduce dust, reduce pollution, and save raw materials at the same time. A ventilation pipe is connected to one side of the silo, and the other end of the ventilation pipe is connected to the fan, and a second valve is provided on the ventilation pipe. During the silo unloading process, the second valve is opened and the fan is started. The fan discharges the material dust through the ventilation pipe. At the same time, a dust bag is covered at the end of the ventilation pipe connected to the fan. The fan collects the dust into the dust bag through the ventilation pipe. However, it is necessary to open the valve and the fan in sequence, which increases the operating steps during dust reduction and the workload during dust reduction operation.

[0006] 2. The above-mentioned silicon carbide raw material conveying device has a discharge port at the lower end surface of the silo, and a guide door that can be opened and closed is hinged at the feed port position at the top of the silo. One side of the guide door is hinged to the silo wall, and the other side is fastened to the silo wall on the other side by a snap. When raw materials need to be added to the silo, the guide door is opened to add the raw materials. During the conveyor belt conveying process, the guide door is in a closed state. In this way, silicon carbide dust will not fly everywhere during the unloading process. However, it is inconvenient to stir the silicon carbide smelting raw materials stored in the silo. The silicon carbide smelting raw materials will cause the silicon carbide smelting raw materials to agglomerate due to a long standing time, causing blockage, affecting the discharge efficiency of the silicon carbide smelting raw materials, and bringing inconvenience to the transportation of silicon carbide smelting raw materials.

[0007] To this end, we provide a raw material conveying device for silicon carbide smelting to solve the above problems. Utility Model Content

[0008] The purpose of the present utility model is to provide a raw material conveying device for silicon carbide smelting. By setting a feeding component, the middle part of the furnace cover is always kept in a sealed state during the up and down movement of the discharge cylinder and the connecting cylinder, and there is no need to set up a dust reduction component for the purpose of dust reduction, which reduces the operation workload of the staff. In addition, a discharge component is set, so that the discharge chute discharges the raw material for silicon carbide smelting while the stirring shaft and the stirring frame rotate to stir the raw material for silicon carbide smelting, thereby avoiding the agglomeration of the raw material for silicon carbide smelting and making the raw material for silicon carbide smelting more smoothly discharged, thereby solving the technical problems raised in the background technology of the above-mentioned silicon carbide raw material conveying device.

[0009] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0010] The utility model discloses a raw material conveying device for silicon carbide smelting, comprising a smelting furnace, a furnace cover is connected to the upper surface of the smelting furnace, a feeding assembly arranged on the upper surface of the furnace cover comprises a feeding bucket and a cross beam, a hydraulic rod is connected to the lower surface of the ear seat connected to the peripheral side wall of the feeding bucket, the lower end of the hydraulic cylinder connected to the lower end of the hydraulic rod is connected to the upper surface of the furnace cover, the lower end surface of the discharging hopper connected to the lower surface of the feeding bucket is connected to the discharging cylinder, a discharging through groove is provided on the peripheral side wall of the discharging cylinder, and both ends of the cross beam are connected to the inner side wall of the smelting furnace. A guide rod is provided inside the hollow shaft connected to the upper surface of the crossbeam, and a return spring is connected to the inner top of the connecting cylinder connected to the upper end surface of the guide rod. The return spring is sleeved on the peripheral side wall of the guide rod, and the lower end of the return spring is connected to the upper end of the hollow shaft; a discharge assembly is provided on the upper surface of the feeding barrel, and the discharge assembly includes a stirring shaft rotatably connected to the middle position of the barrel cover, and the barrel cover is provided on the upper surface of the feeding barrel, and a stirring frame and a block are connected to the peripheral side wall of the stirring shaft, and the motor connected to the upper end of the stirring shaft is connected to the upper surface of the barrel cover.

[0011] The utility model is further configured such that a sealing ring is provided at the middle of the furnace cover, and the outer diameter of the reset spring is larger than the inner diameter of the hollow shaft.

[0012] The utility model is further configured such that a sliding rod is fixedly connected to the outer peripheral side wall of the hollow shaft in an annular array, and a guide groove is opened in an annular array on the inner peripheral side wall of the connecting tube, and the sliding rod is slidably connected inside the guide groove.

[0013] The utility model is further configured such that convex rods are fixedly connected in an annular array on the upper surface of the feeding barrel, the upper ends of the convex rods pass through the lower surface of the barrel cover, and nuts threadedly connected on the peripheral side walls of the convex rods are abutted against the upper surface of the barrel cover.

[0014] The present invention is further configured such that the lower end of the feed hopper provided on the upper surface of the barrel cover is communicated with the interior of the feeding barrel, and a screw plug is threadedly connected on the upper surface of the feed hopper.

[0015] The utility model is further configured such that a stabilizing assembly is provided on the upper surface of the furnace cover, and the stabilizing assembly includes a support leg connected to the outer peripheral side wall of the stabilizing ring, the stabilizing ring is sleeved on the outer peripheral side of the feeding barrel, and the lower surface of the support leg is connected to the upper surface of the furnace cover.

[0016] The utility model is further configured such that a slide groove is provided in an annular array on the inner peripheral side wall of the stabilizing ring, and a slider is fixed in an annular array on the outer peripheral side wall of the feeding barrel, and the slider is slidably connected to the inside of the slide groove.

[0017] The present invention is further configured such that the supporting legs are L-shaped and are arranged in a ring array.

[0018] The utility model has the following beneficial effects:

[0019] 1. The utility model sets a feeding assembly. The staff starts the hydraulic cylinder, the hydraulic rod contracts, the feeding barrel drives the discharge barrel to squeeze the connecting barrel downward, the return spring contracts, and the connecting barrel approaches the crossbeam until the discharge barrel completely penetrates the furnace cover and enters the interior of the smelting furnace, so that the discharge channel enters the interior of the smelting furnace, and the raw materials for silicon carbide smelting are transported; when the hydraulic rod extends, the discharge barrel moves upward out of the interior of the smelting furnace, and the contracted return spring gradually extends to its original state. There is no need to set up a spray assembly and a dust suction assembly to achieve the purpose of dust reduction during the transportation of raw materials for silicon carbide smelting, which simplifies the dust prevention operation steps and reduces the operation amount of the staff during dust reduction.

[0020] 2. The utility model sets a discharge component. After the staff operates the hydraulic cylinder to send the discharge barrel into the interior of the smelting furnace, the staff starts the motor, and the stirring shaft and the stirring frame rotate to stir the silicon carbide smelting raw materials inside the feeding barrel, which is conducive to the silicon carbide smelting raw materials inside the feeding barrel to enter the interior of the discharge barrel more smoothly, and the rotation of the stirring shaft drives the stopper to rotate. When the stopper is misaligned with the discharge slot, the silicon carbide smelting raw materials inside the discharge barrel pass through the discharge slot into the interior of the smelting furnace, effectively preventing the silicon carbide smelting raw materials inside the feeding barrel from being blocked by agglomeration and causing the discharge to be not smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0022] Figure 1 A three-dimensional diagram of a raw material conveying device for silicon carbide smelting Figure 1 ;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure at center A;

[0024] Figure 3 for Figure 1 A magnified schematic diagram of the structure at point B in the middle;

[0025] Figure 4 This is an exploded diagram of the discharge assembly and the discharge barrel;

[0026] Figure 5 A three-dimensional diagram of a raw material conveying device for silicon carbide smelting Figure 2 ;

[0027] Figure 6 This is an exploded schematic diagram of the crossbeam, hollow shaft, guide rod and connecting tube.

[0028] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0029] 1- smelting furnace, 101- furnace cover, 101a- sealing ring, 2- feeding assembly, 201- feeding barrel, 201a- slider, 201b- discharge hopper, 201c- discharge barrel, 201d- discharge slot, 202- hydraulic cylinder, 202a- hydraulic rod, 202b- ear seat, 203- protruding rod, 203a- nut, 204- crossbeam, 205- hollow shaft, 205 a-slide rod, 206-connecting cylinder, 206a-guide groove, 207-guide rod, 207a-reset spring, 3-discharging assembly, 301-barrel cover, 302-motor, 302a-stirring shaft, 302b-stirring frame, 302c-stopper, 303-feed hopper, 303a-screw plug, 4-stabilizing assembly, 401-stabilizing ring, 401a-slide groove, 402-support foot. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Example 1

[0032] See also Figure 1 、 Figure 2 、 Figure 5 and Figure 6 The present invention is a raw material conveying device for silicon carbide smelting, comprising a smelting furnace 1, wherein a feeding assembly 2 is provided on the upper surface of a furnace cover 101 connected to the upper surface of the smelting furnace 1, and the feeding assembly 2 comprises a feeding barrel 201, a slider 201a, a discharging hopper 201b, a discharging cylinder 201c, a hydraulic cylinder 202, a hydraulic rod 202a, an ear seat 202b, a protruding rod 203, a nut 203a, a crossbeam 204, a hollow shaft 205, a sliding rod 205a, a connecting cylinder 206, a guide rod 207 and a return spring 207a. The hydraulic cylinder 202 is operated to make the discharging cylinder 201c move downward into the interior of the smelting furnace 1, and the return spring 207a is cooperated to make the connecting cylinder 206 which moves downward be reinserted into the middle part of the furnace cover 101. There is no need to set up a spraying assembly and a dust collecting assembly to achieve the purpose of dust reduction, thereby reducing the operation amount of the staff during dust reduction.

[0033] Specifically, a sealing ring 101a is provided in the middle of the furnace cover 101, the feeding barrel 201 is provided above the furnace cover 101, and the peripheral side wall of the feeding barrel 201 is connected with an ear seat 202b, the hydraulic cylinder 202 is connected to the upper surface of the furnace cover 101, and the upper end of the hydraulic cylinder 202 is connected to the hydraulic rod 202a, the upper end of the hydraulic rod 202a is connected to the lower surface of the ear seat 202b, the peripheral side wall of the feeding barrel 201 is connected with a slider 201a, the discharge hopper 201b is connected to the lower surface of the feeding barrel 201, and the lower end of the discharge hopper 201b is connected to the discharge cylinder 201c, the peripheral side wall of the discharge cylinder 201c is provided with a discharge groove 201d, the upper surface of the feeding barrel 201 is fixed with a protruding rod 203, and the peripheral side wall of the protruding rod 203 The upper thread is connected with a nut 203a, the crossbeam 204 is connected to the inner wall of the smelting furnace 1, and a hollow shaft 205 is connected to the upper surface of the crossbeam 204, the upper end of the hollow shaft 205 is sleeved with a guide rod 207, and the outer peripheral side wall of the hollow shaft 205 is connected with a slide rod 205a, the upper end of the guide rod 207 is connected to a connecting tube 206, the upper end of the connecting tube 206 passes through the sealing ring 101a, and a guide groove 206a is provided on the inner peripheral side wall of the connecting tube 206, the slide rod 205a is slidably connected to the inside of the guide groove 206a, and a return spring 207a is sleeved on the peripheral side wall of the guide rod 207, the upper end of the return spring 207a is connected to the inner top of the connecting tube 206, and the lower end of the return spring 207a is connected to the upper end surface of the hollow shaft 205;

[0034] Furthermore, the ear seats 202b are arranged in a circular array, the hydraulic cylinders 202 are arranged in a circular array, the sliders 201a are arranged in a circular array, the discharge slots 201d are opened in a circular array, the protruding rods 203 are arranged in a circular array, the sliding rods 205a are arranged in a circular array, and the guide grooves 206a are opened in a circular array;

[0035] The operating process of this embodiment is as follows: the staff starts the hydraulic cylinder 202, and when the hydraulic rod 202a contracts, the ear seat 202b moves downward, the feeding barrel 201 moves downward, the discharge hopper 201b moves downward, the discharge barrel 201c moves downward, and the discharge barrel 201c squeezes the connecting barrel 206 downward, the return spring 207a contracts, the connecting barrel 206 moves downward, and the guide rod 207 moves downward until the lower end of the connecting barrel 206 contacts the upper surface of the crossbeam 204, and the discharge barrel 201c completely enters the interior of the smelting furnace 1, completing the transportation of raw materials for silicon carbide smelting; conversely, when the hydraulic rod 202a extends, the feeding barrel 201 moves upward, the discharge barrel 201c moves upward out of the interior of the smelting furnace 1, and the contracted return spring 207a gradually extends to its original state, and the connecting barrel 206 moves upward and is inserted into the interior of the sealing ring 101a.

[0036] Example 2

[0037] See also Figure 1、 Figure 3 and Figure 4 Based on the first embodiment, a discharge assembly 3 is provided. The discharge assembly 3 includes a barrel cover 301, a motor 302, a stirring shaft 302a, a stirring frame 302b, a stopper 302c, a feed hopper 303, and a screw plug 303a. The motor 302 is controlled to rotate the stirring shaft 302a and the stirring frame 302b to stir the silicon carbide smelting raw material inside the feeding barrel 201, thereby preventing the silicon carbide smelting raw material from agglomerating and facilitating smoother discharge of the silicon carbide smelting raw material.

[0038] Specifically, the barrel cover 301 is abutted on the upper surface of the feeding barrel 201, the upper end of the protruding rod 203 passes through the lower surface of the barrel cover 301, the nut 203a is abutted on the upper surface of the barrel cover 301, the motor 302 is connected to the upper surface of the barrel cover 301, the lower surface of the motor 302 is connected to the stirring shaft 302a, the stirring shaft 302a is rotatably connected to the middle part of the barrel cover 301, the stirring frame 302b is connected to the peripheral side wall of the stirring shaft 302a, the stopper 302c is connected to the peripheral side wall of the stirring shaft 302a, and the stopper 302c is located below the stirring frame 302b, the feeding hopper 303 is connected to the upper surface of the barrel cover 301, and the upper surface of the feeding hopper 303 is threadedly connected with a screw plug 303a;

[0039] Furthermore, three stirring racks 302b are provided in a circular array, and three stoppers 302c are provided in a circular array;

[0040] The operating process of this embodiment is: after the staff operates the hydraulic cylinder 202 to send the discharge barrel 201c into the interior of the smelting furnace 1, the motor 302 is started, and the stirring shaft 302a and the stirring frame 302b rotate to stir the silicon carbide smelting raw materials inside the feeding barrel 201, and the rotating stirring shaft 302a drives the stopper 302c to rotate. When the stopper 302c is misaligned with the discharge slot 201d, the silicon carbide smelting raw materials inside the discharge barrel 201c pass through the discharge slot 201d and enter the interior of the smelting furnace 1; when the stopper 302c completely blocks the discharge slot 201d, the silicon carbide smelting raw materials inside the discharge barrel 201c stop entering the interior of the smelting furnace 1.

[0041] Example 3

[0042] See also Figure 1 On the basis of the first and second embodiments, a stabilizing assembly 4 is provided. The stabilizing assembly 4 includes a stabilizing ring 401 and a support leg 402. The setting of the stabilizing ring 401 effectively improves the stability of the feeding barrel 201 when it moves up and down, and improves the stability of the feeding barrel 201 when transporting raw materials for silicon carbide smelting;

[0043] Specifically, the stabilizing ring 401 is sleeved on the circumference of the feeding barrel 201, and the outer wall of the stabilizing ring 401 is connected to the support leg 402, the lower surface of the support leg 402 is connected to the upper surface of the furnace cover 101, and the inner circumferential side wall of the stabilizing ring 401 is provided with a slide groove 401a, and the slider 201a is slidably connected inside the slide groove 401a;

[0044] Furthermore, the three legs 402 are arranged in a circular array, and the legs 402 are L-shaped, and the three slide grooves 401a are opened in a circular array;

[0045] The operation process of this embodiment is as follows: when the staff operates the hydraulic cylinder 202 to adjust the height of the feeding bucket 201, the slider 201a moves along the slide groove 401a, thereby improving the stability of the feeding bucket 201 when moving up and down.

[0046] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0047] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A raw material conveying device for silicon carbide smelting, comprising a smelting furnace (1), wherein a furnace cover (101) is connected to the upper surface of the smelting furnace (1), characterized in that: The feeding assembly (2) provided on the upper surface of the furnace cover (101) comprises a feeding barrel (201) and a crossbeam (204); a hydraulic rod (202a) is connected to the lower surface of an ear seat (202b) connected to the peripheral side wall of the feeding barrel (201); the lower end of a hydraulic cylinder (202) connected to the lower end of the hydraulic rod (202a) is connected to the upper surface of the furnace cover (101); the lower end surface of a discharge hopper (201b) connected to the lower surface of the feeding barrel (201) is connected to a discharge cylinder (201c); the discharge cylinder (201c) A discharge groove (201d) is provided on the peripheral side wall of the crossbeam (204), both ends of the crossbeam (204) are connected to the inner side wall of the smelting furnace (1), a guide rod (207) is sleeved inside the hollow shaft (205) connected to the upper surface of the crossbeam (204), and a return spring (207a) is connected to the inner top of the connecting cylinder (206) connected to the upper end face of the guide rod (207), and the return spring (207a) is sleeved on the peripheral side wall of the guide rod (207), and the lower end of the return spring (207a) is connected to the upper end of the hollow shaft (205); A discharge assembly (3) is provided on the upper surface of the feeding barrel (201), the discharge assembly (3) comprising a stirring shaft (302a) rotatably connected to the middle position of the barrel cover (301), the barrel cover (301) being provided on the upper surface of the feeding barrel (201), a stirring frame (302b) and a stopper (302c) being connected to the peripheral side wall of the stirring shaft (302a), and a motor (302) connected to the upper end of the stirring shaft (302a) being connected to the upper surface of the barrel cover (301).

2. A raw material conveying device for silicon carbide smelting according to claim 1, characterized in that: A sealing ring (101a) is provided in the middle of the furnace cover (101), and the outer diameter of the return spring (207a) is larger than the inner diameter of the hollow shaft (205).

3. The raw material conveying device for silicon carbide smelting according to claim 1, characterized in that: Slide rods (205a) are fixedly connected in an annular array on the outer peripheral side wall of the hollow shaft (205), and guide grooves (206a) are opened in an annular array on the inner peripheral side wall of the connecting cylinder (206), and the slide rods (205a) are slidably connected inside the guide grooves (206a).

4. The raw material conveying device for silicon carbide smelting according to claim 1, characterized in that: The upper surface of the feeding barrel (201) is fixed with protruding rods (203) in an annular array, the upper ends of the protruding rods (203) pass through the lower surface of the barrel cover (301), and the nuts (203a) threadedly connected on the peripheral side walls of the protruding rods (203) are abutted against the upper surface of the barrel cover (301).

5. A raw material conveying device for silicon carbide smelting according to claim 4, characterized in that: The lower end of the feed hopper (303) provided on the upper surface of the barrel cover (301) is communicated with the interior of the feeding barrel (201), and a screw plug (303a) is threadedly connected to the upper surface of the feed hopper (303).

6. The raw material conveying device for silicon carbide smelting according to claim 1, characterized in that: The upper surface of the furnace cover (101) is provided with a stabilizing assembly (4), and the stabilizing assembly (4) includes a support leg (402) connected to the outer peripheral side wall of the stabilizing ring (401), and the stabilizing ring (401) is sleeved on the outer peripheral side of the feeding barrel (201), and the lower surface of the support leg (402) is connected to the upper surface of the furnace cover (101).

7. A raw material conveying device for silicon carbide smelting according to claim 6, characterized in that: The inner peripheral side wall of the stabilizing ring (401) is provided with a sliding groove (401a) in an annular array, and the outer peripheral side wall of the feeding barrel (201) is fixed with a sliding block (201a) in an annular array, and the sliding block (201a) is slidably connected inside the sliding groove (401a).

8. The raw material conveying device for silicon carbide smelting according to claim 6, characterized in that: The supporting legs (402) are L-shaped and are arranged in a circular array.

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