Screening and discharging device of tungsten carbide calcining kiln

Abstract

The utility model provides a screening and discharging device of a tungsten carbide calcining kiln, which relates to the technical field of screening and discharging devices and comprises a screening box, a screen and a guide slope are fixedly mounted on the inner wall of the screening box, a vibrating motor is fixedly mounted on the side surface of the screening box, and the top surface of the screening box is communicated with a feed hopper. The bottom face of the screening box communicates with a discharging hopper, a rotating rod is arranged on the surface of the discharging hopper in a penetrating mode, a short block is fixedly installed at one end of the rotating rod, a positioning rod is arranged on the surface of the short block in a penetrating mode, a pull block is fixedly installed at one end of the positioning rod, and a positioning hole is formed in the side face of the discharging hopper. The surface of the positioning rod is sleeved with a tension spring. By means of the blades, the discharging speed can be freely adjusted when discharging is conducted through the discharging hopper, so that the discharging device can adapt to lifting and transporting of hoists of different models, the situation that the workload of the hoists is too large is avoided, and the discharging device is simple in structure, low in cost and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of screening and discharging devices, in particular to a screening and discharging device for a tungsten carbide calcination kiln. Background Technique

[0002] Tungsten carbide is a black hexagonal crystal with metallic luster. Its hardness is similar to that of diamond, and it is a good conductor of electricity and heat. The melting point is 2870 °C, the boiling point is 6000 °C, and the relative density is 15.63 (18 °C). Tungsten carbide is insoluble in water, hydrochloric acid and sulfuric acid, and is easily soluble in a mixed acid of nitric acid - hydrofluoric acid. Pure tungsten carbide is brittle. If a small amount of metals such as titanium and cobalt are added, the brittleness can be reduced. Tungsten carbide used as a steel cutting tool often adds titanium carbide, tantalum carbide or their mixtures to improve the explosion resistance. The chemical properties of tungsten carbide are stable, and tungsten carbide powder is used as a production material for cemented carbide.

[0003] The published patent No. CN216856970 discloses a screening and discharging device for a tungsten carbide calcination kiln, including: a calcination kiln for preparing tungsten carbide materials by calcination, and the calcination kiln is provided with a discharging end; a tungsten carbide crusher for crushing the tungsten carbide materials prepared by the calcination kiln. The tungsten carbide crusher is provided with a main feeding end, a secondary feeding end and a discharging end. The main feeding end of the tungsten carbide crusher is connected to the discharging end of the calcination kiln, and the secondary feeding end of the tungsten carbide crusher is used to feed the tungsten carbide particles screened by a vibrating screen; a vibrating screen for screening the tungsten carbide materials crushed by the tungsten carbide crusher into tungsten carbide powder and tungsten carbide particles, wherein the particle size of the tungsten carbide powder is smaller than the set particle size, and the particle size of the tungsten carbide particles is larger than the set particle size; the vibrating screen is provided with a feeding end, a first discharging end and a second discharging end. The feeding end of the vibrating screen is connected to the discharging end of the tungsten carbide crusher. The first discharging end of the vibrating screen is used to output tungsten carbide powder. The first discharging end of the vibrating screen is connected to the feeding end of an elevator. The second discharging end of the vibrating screen is used to output tungsten carbide particles; and an elevator, the elevator is vertically arranged, and the upper end of the elevator is provided with a discharging pipe for outputting tungsten carbide powder. Although this kind of screening and discharging device can screen the tungsten carbide materials crushed by the tungsten carbide crusher into tungsten carbide powder and tungsten carbide particles through the vibrating screen, due to the uncontrollable discharging speed, when vibrating and screening, if too much tungsten carbide powder and tungsten carbide particles are screened out, it will cause too much tungsten carbide powder and tungsten carbide particles to be loaded into a certain hopper of the subsequent elevator, thus affecting the running stability of the elevator, increasing the working burden of the elevator, and improvement is needed. Content of the Utility Model

[0004] The purpose of the utility model is to solve the technical problems put forward in the above background technique.

[0005] The utility model adopts the following technical solutions: a screening and discharging device for a tungsten carbide calcination kiln, which comprises a screening box. A screen and a material guiding slope are fixedly installed on the inner wall of the screening box. A vibration motor is fixedly installed on the side of the screening box. A feed hopper is communicated with the top surface of the screening box. A discharge hopper is communicated with the bottom surface of the screening box. A rotating rod penetrates through the surface of the discharge hopper. A short block is fixedly installed at one end of the rotating rod. A positioning rod penetrates through the surface of the short block. A pulling block is fixedly installed at one end of the positioning rod. A positioning hole is formed in the side of the discharge hopper. A tension spring is sleeved on the surface of the positioning rod. A blade is fixedly installed on the surface of the rotating rod.

[0006] Preferably, the positioning rod is slidably connected with the short block, and the rotating rod is rotatably connected with the discharge hopper.

[0007] Preferably, one end of the tension spring is fixedly connected with the pulling block, and the other end of the tension spring is fixedly connected with the short block. Here, the tension spring can be stably installed.

[0008] Preferably, the positioning holes are arranged in a circular shape on the side of the discharge hopper, and the radius of the positioning holes is the same as that of the positioning rod.

[0009] Preferably, a shielding mechanism is arranged on the side of the screening box. The shielding mechanism comprises an installation groove, which is opened on the side of the screening box. An installation block is slidably connected to the inner wall of the installation groove. A shielding plate is fixedly installed on the side of the installation block. A magnet is fixedly installed on the inner wall of the installation groove. Here, the vibration motor can be shielded to provide protection.

[0010] Preferably, both the installation groove and the installation block are in a "T" shape, and the material of the installation block is ferritic stainless steel. Here, the service life of the installation block can be prolonged.

[0011] Preferably, a pulling handle is fixedly installed on the side of the shielding plate. Here, the shielding plate can be conveniently pulled.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are as follows.

[0013] 1. In the present utility model, during actual use, materials are fed through the feed hopper and then vibrated by the vibration motor. At this time, tungsten carbide powder and tungsten carbide particles can be screened out through the sieve mesh, and then they fall out from the discharge hopper along the material guiding slope into the external elevator for lifting. At the same time, the staff can also control the discharge speed according to the specific model of the elevator to avoid overloading the elevator. When adjusting the discharge speed, the staff only needs to pull the positioning rod outward through the pulling block. After the positioning rod leaves the positioning hole, the limit is released at this time. Subsequently, the staff only needs to rotate the blade, and the blade will drive the rotating rod to rotate. At this time, the angle of the blade can be adjusted. In this way, by adjusting the angle of the blade, the opening size of the discharge hopper can be controlled, thereby controlling the feeding speed. Then, release the pulling block. Subsequently, due to the pulling force of the tension spring, the tension spring can pull the pulling block to move, and the pulling block will drive the positioning rod to insert into the positioning hole. At this time, the blade can be limited. Through the set blade in the present utility model, when feeding through the discharge hopper, the feeding speed can be freely adjusted, which can adapt to the lifting and transportation of elevators of different models, avoid overloading the elevator during operation, and has a simple structure, low cost, and high practicality.

[0014] 2. In the present utility model, during actual use, the set baffle can block stains and tungsten powder debris, which can protect the vibration motor and prevent the vibration motor from being damaged due to stains and tungsten powder debris. At the same time, when the baffle is not in use, the staff only needs to pull the baffle outward through the pulling handle. The baffle will drive the installation block to slide in the installation groove until the installation block slides out of the installation groove. At this time, the baffle can be removed. When the baffle is needed, only align the installation block with the installation groove and slide it in until the installation block abuts against the magnet. At this time, the magnet can attract the installation block made of ferritic stainless steel to limit the baffle. Through the set baffle in the present utility model, stains and tungsten powder debris can be blocked, which can protect the vibration motor and prevent the vibration motor from being damaged due to stains and tungsten powder debris, and it can also be freely disassembled and assembled, with high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of a screening and discharging device for a tungsten carbide calcination kiln proposed by the present utility model;

[0016] Figure 2 is a bottom view of a screening and discharging device for a tungsten carbide calcination kiln proposed by the present utility model;

[0017] Figure 3 is a screening and discharging device for a tungsten carbide calcination kiln proposed by the present utility model Figure 2 magnified view of part A;

[0018] Figure 4 is an exploded view of a screening and discharging device for a tungsten carbide calcination kiln proposed by the present utility model;

[0019] Figure 5 This is a cross-sectional view of a screening and discharging device for a tungsten carbide calcination kiln proposed by the present utility model.

[0020] Legend:

[0021] 1. Screening box; 2. Screen mesh; 3. Material guiding slope; 4. Vibration motor; 5. Feeding hopper; 6. Discharging hopper; 7. Rotating rod; 8. Short block; 9. Positioning rod; 10. Positioning hole; 11. Pulling block; 12. Pulling spring; 13. Blade; 14. Installation groove; 15. Installation block; 16. Baffle plate; 17. Magnet; 18. Pulling handle. Specific embodiments

[0022] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0023] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0024] Embodiment 1

[0025] Please refer to Figures 1-5 As shown in the figure, the present utility model provides a technical solution: a screening and discharging device for a tungsten carbide calcination kiln, including a screening box 1. The inner wall of the screening box 1 is fixedly installed with a screen mesh 2 and a material guiding slope 3. The side of the screening box 1 is fixedly installed with a vibration motor 4. The top surface of the screening box 1 is communicated with a feeding hopper 5. The bottom surface of the screening box 1 is communicated with a discharging hopper 6. Feed through the feeding hopper 5, and then vibrate through the vibration motor 4. At this time, tungsten carbide powder and tungsten carbide particles can be screened out through the screen mesh 2, and then fall out from the discharging hopper 6 along the material guiding slope 3 into the external elevator for lifting. A rotating rod 7 is penetrated through the surface of the discharging hopper 6. The rotating rod 7 is rotatably connected to the discharging hopper 6. One end of the rotating rod 7 is fixedly installed with a short block 8. A positioning rod 9 is penetrated through the surface of the short block 8. The positioning rod 9 is slidably connected to the short block 8. One end of the positioning rod 9 is fixedly installed with a pulling block 11. The pulling block 11 can be used to conveniently pull the positioning rod 9. A positioning hole 10 is opened on the side of the discharging hopper 6. The positioning holes 10 are arranged in a circular shape on the side of the discharging hopper 6. The positioning holes 10 have the same radius as the positioning rod 9.

[0026] Please refer to Figures 1-5, a tension spring 12 is sleeved on the surface of the positioning rod 9. One end of the tension spring 12 is fixedly connected to the pulling block 11, and the other end of the tension spring 12 is fixedly connected to the short block 8. A blade 13 is fixedly installed on the surface of the rotating rod 7. By pulling the positioning rod 9 outwards through the pulling block 11, after the positioning rod 9 leaves the positioning hole 10, the limit can be released at this time. Then, the staff only needs to rotate the blade 13, and the blade 13 will drive the rotating rod 7 to rotate subsequently. At this time, the angle of the blade 13 can be adjusted. In this way, by adjusting the angle of the blade 13, the opening size of the discharge hopper 6 can be controlled, thereby controlling the feeding speed. Then, release the pulling block 11. Subsequently, due to the pulling force of the tension spring 12, the tension spring 12 can pull the pulling block 11 to move, and the pulling block 11 will drive the positioning rod 9 to insert into the positioning hole 10. At this time, the blade 13 can be limited.

[0027] Embodiment 2

[0028] Please refer to Figure 4 , a shielding mechanism is arranged on the side surface of the screening box 1. The shielding mechanism includes an installation groove 14, the installation groove 14 is opened on the side surface of the screening box 1, an installation block 15 is slidably connected to the inner wall of the installation groove 14, both the installation groove 14 and the installation block 15 are of a "T" - shaped structure, the material of the installation block 15 is ferritic stainless steel, a shielding plate 16 is fixedly installed on the side surface of the installation block 15. The shielding plate 16 can shield stains and tungsten powder debris, so that the vibration motor 4 can be protected. A pulling handle 18 is fixedly installed on the side surface of the shielding plate 16, and a magnet 17 is fixedly installed on the inner wall of the installation groove 14. By pulling the shielding plate 16 outwards through the pulling handle 18, the shielding plate 16 will drive the installation block 15 to slide in the installation groove 14 until the installation block 15 slides out of the installation groove 14. At this time, the shielding plate 16 can be removed. When the shielding plate 16 is needed, only need to align the installation block 15 and slide it into the installation groove 14 until the installation block 15 abuts against the magnet 17. At this time, the magnet 17 can attract the installation block 15 made of ferritic stainless steel, thereby limiting the shielding plate 16.

[0029] Working principle: Feed through the feed hopper 5, and then vibrate through the vibration motor 4. At this time, tungsten carbide powder and tungsten carbide particles can be screened out through the screen 2, and then fall out from the discharge hopper 6 along the guide slope 3 into the external elevator for lifting. At the same time, the staff can also control the discharge speed according to the specific model of the elevator to avoid overloading the elevator. When adjusting the discharge speed, the staff only needs to pull the positioning rod 9 outward through the pull block 11. After the positioning rod 9 leaves the positioning hole 10, the limit can be released at this time. Then the staff only needs to rotate the blade 13, and the blade 13 will drive the rotating rod 7 to rotate. At this time, the angle of the blade 13 can be adjusted. In this way, by adjusting the angle of the blade 13, the opening size of the discharge hopper 6 can be controlled, thereby controlling the feeding speed. Then release the pull block 11. Subsequently, due to the pulling force of the tension spring 12, the tension spring 12 can pull the pull block 11 to move, and the pull block 11 will drive the positioning rod 9 to insert into the positioning hole 10. At this time, the blade 13 can be limited. The provided baffle 16 can block stains and tungsten powder debris, which can protect the vibration motor 4 and prevent the vibration motor 4 from being damaged due to stains and tungsten powder debris. At the same time, when the baffle 16 is not in use, the staff only needs to pull the baffle 16 outward through the pulling handle 18, and the baffle 16 will drive the mounting block 15 to slide in the mounting groove 14 until the mounting block 15 slides out of the mounting groove 14. At this time, the baffle 16 can be removed. When the baffle 16 needs to be used, only align the mounting block 15 and slide it into the mounting groove 14 until the mounting block 15 abuts against the magnet 17. At this time, the magnet 17 can attract the mounting block 15 made of ferritic stainless steel, thereby limiting the baffle 16.

[0030] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A screening and discharging device for a tungsten carbide calcination kiln, comprising a screening box (1), characterized in that: The inner wall of the screening box (1) is fixedly installed with a screen (2) and a material guiding slope (3). The side of the screening box (1) is fixedly installed with a vibration motor (4). The top surface of the screening box (1) is communicated with a feed hopper (5). The bottom surface of the screening box (1) is communicated with a discharge hopper (6). A rotating rod (7) penetrates through the surface of the discharge hopper (6). One end of the rotating rod (7) is fixedly installed with a short block (8). A positioning rod (9) penetrates through the surface of the short block (8). One end of the positioning rod (9) is fixedly installed with a pulling block (11). A positioning hole (10) is formed in the side of the discharge hopper (6). A tension spring (12) is sleeved on the surface of the positioning rod (9). A blade (13) is fixedly installed on the surface of the rotating rod (7).

2. The screening and discharging device of the tungsten carbide calcination kiln according to claim 1, characterized in that: The positioning rod (9) is slidably connected with the short block (8), and the rotating rod (7) is rotatably connected with the discharge hopper (6).

3. The screening and discharging device of the tungsten carbide calcination kiln according to claim 1, characterized in that: One end of the tension spring (12) is fixedly connected with the pulling block (11), and the other end of the tension spring (12) is fixedly connected with the short block (8).

4. The screening and discharging device of the tungsten carbide calcination kiln according to claim 1, characterized in that: The positioning holes (10) are arranged in a circular shape on the side of the discharge hopper (6), and the positioning holes (10) have the same radius as the positioning rod (9).

5. The screening and discharging device of the tungsten carbide calcination kiln according to claim 1, wherein: A shielding mechanism is arranged on the side of the screening box (1). The shielding mechanism includes an installation groove (14). The installation groove (14) is opened on the side of the screening box (1). An installation block (15) is slidably connected to the inner wall of the installation groove (14). A shielding plate (16) is fixedly installed on the side of the installation block (15). A magnet (17) is fixedly installed on the inner wall of the installation groove (14).

6. The screening and discharging device of the tungsten carbide calcination kiln according to claim 5, characterized in that: Both the installation groove (14) and the installation block (15) are in a "T" shape, and the material of the installation block (15) is ferritic stainless steel.

7. The screening and discharging device of the tungsten carbide calcination kiln according to claim 5, characterized in that: A pulling handle (18) is fixedly installed on the side of the shielding plate (16).

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