Automatic screening device for mineral powder

Abstract

The utility model belongs to the field of screening devices, and particularly relates to an automatic mineral powder screening device which comprises a stock bin, a hollow cylinder is fixedly connected to the interior of the upper end of the stock bin, a motor is fixedly installed at the upper end of the hollow cylinder, and an output shaft of the motor penetrates through the hollow cylinder and is connected with the hollow cylinder through a bearing. The tail end of the output shaft is fixedly connected with a spiral blade shaft, the spiral blade shaft is rotationally connected to the inner side of the hollow cylinder, the lower section of a shaft body of the spiral blade shaft is fixedly connected with a special-shaped rod, and the middle of the inner side of the stock bin is slidably connected with a filter screen. The hollow cylinder is arranged on the inner side of the stock bin, the spiral blade shaft driven by the motor is arranged on the hollow cylinder, and the discharging port and the feeding port are formed in the cylinder wall of the hollow cylinder, so that mineral powder can be fed for the second time through the spiral blade shaft, the mineral powder can be effectively filtered, and efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of screening devices, and particularly relates to an automatic screening device for ore powder. Background Art

[0002] Ore powder generally refers to the powder obtained by crushing the mined ore. After crushing, there are still small particles inside the ore powder, so screening is required. For example, the utility model patent with the authorization announcement number CN210230621U proposes an ore powder screening device for mining machinery, including a base. A housing is fixedly connected to the top of the base. A motor is fixedly installed on the top of the housing. An eccentric rotating block is fixedly connected to the output shaft of the motor. A roller is rotatably connected inside the eccentric rotating block. A concave block is attached to the top of the roller. A cross plate is fixedly connected to the top of the concave block.

[0003] When the existing screening device is in use, the screening component is easily blocked, thus affecting the screening efficiency. At the same time, manual secondary feeding and screening are also required, which also affects the screening efficiency. Therefore, it needs to be improved. Summary of the Invention

[0004] The purpose of the utility model is to provide an automatic screening device for ore powder, which solves the problem that the screening component of the existing screening device is easily blocked during use, thus affecting the screening efficiency, and at the same time solves the problem that manual secondary feeding and screening are still required.

[0005] To achieve the above purpose, the utility model provides an automatic screening device for ore powder, including a feed bin. A hollow cylinder is fixedly connected to the upper inner part of the feed bin. A motor is fixedly installed at the upper end of the hollow cylinder. The output shaft of the motor penetrates the hollow cylinder and is connected to the hollow cylinder through a bearing. A spiral blade shaft is fixedly connected to the end of the output shaft, and the spiral blade shaft is rotatably connected to the inner side of the hollow cylinder. An irregular rod is fixedly connected to the lower section of the shaft body of the spiral blade shaft. A filter screen is slidably connected to the middle part inside the feed bin, and the filter screen is slidably connected to the outside of the hollow cylinder. A vibration type anti-blocking mechanism is arranged below the filter screen.

[0006] The principle of this utility model is as follows: When in use, first start the motor, which drives the spiral blade shaft to rotate. Then, add the powder material into the silo through the feed hopper. Subsequently, the mineral powder will be screened by the filter net, and the mineral powder intercepted by the filter net will enter the hollow cylinder from the feed port, and then be conveyed upward in a spiral manner by the spiral blade shaft, and then discharged from the discharge port, and then filtered again, thereby improving the filtering efficiency. In addition, during the rotation of the spiral blade shaft, the special-shaped rod at the lower section of its shaft body will periodically collide with the collision rod in the vibration type anti-blocking mechanism, and give the collision rod an upward thrust. Then, under the elastic force of the spring, the sliding seat and the filter net can generate vibration. In this way, on the one hand, it can accelerate the filtering of the mineral powder, and on the other hand, it can also prevent the blockage of the filter net itself.

[0007] The beneficial effects of this utility model are as follows: By arranging a hollow cylinder inside the silo, a spiral blade shaft driven by a motor is arranged on the hollow cylinder, and a discharge port and a feed port are opened on the cylinder wall of the hollow cylinder. In this way, the mineral powder can be fed twice through the spiral blade shaft, so that the mineral powder can be effectively filtered, improving the efficiency.

[0008] By arranging a vibration type anti-blocking mechanism below the filter net, during the rotation of the spiral blade shaft, the special-shaped rod at the lower section of its shaft body will periodically collide with the collision rod in the vibration type anti-blocking mechanism, and give the collision rod an upward thrust. Then, under the elastic force of the spring, the filter net can generate vibration. On the one hand, it can accelerate the filtering of the mineral powder, and on the other hand, it can also prevent its own blockage.

[0009] Further, a discharge port is opened in the upper part of the side wall of the hollow cylinder, and a feed port is opened in the lower part of the side wall of the hollow cylinder. Through the setting of the discharge port and the feed port, it is convenient for the mineral powder to enter and exit the hollow cylinder.

[0010] Further, a flow guide cover is fixedly connected to the outside of the hollow cylinder, and the flow guide cover is made of stainless steel. Through the setting of the flow guide cover, it has a guiding effect on the mineral powder discharged from the hollow cylinder.

[0011] Further, a support ring is fixedly connected to the outside of the silo, and support legs are fixedly connected to the bottom of the support ring. Through the setting of the support ring and the support legs, it has a supporting effect on the whole.

[0012] Further, feed hoppers are fixedly connected to both sides of the motor at the top of the silo, and the two feed hoppers are symmetrically distributed. Through the setting of the feed hoppers, it is convenient to add the mineral powder into the silo.

[0013] Further, the vibration type anti-blocking mechanism includes a sliding seat, the sliding seat is slidably connected to the inner side of the silo, the sliding seat is fixedly connected to the filter screen, a support block is fixedly connected to the inner wall of the silo and below the sliding seat, a guide rod is fixedly connected to the upper end of the support block, the guide rod is slidably connected to the sliding seat, a spring is arranged inside the sliding seat, one end of the spring is fixedly connected to the guide rod, the other end of the spring is fixedly connected to the inner surface of the sliding seat, and a striking rod is fixedly connected to the bottom of the sliding seat. Through the arrangement of the vibration type anti-blocking mechanism, the blockage of the filter screen can be prevented.

[0014] Further, a protective sleeve is fixedly connected to the upper end of the support block and outside the guide rod, and the protective sleeve is fixedly connected to the sliding seat. Through the arrangement of the protective sleeve, the spring is protected. Description of the Drawings

[0015] Figure 1 is a three-dimensional overall structure diagram of an automatic screening device for mineral powder according to an embodiment of the present invention;

[0016] Figure 2 is an automatic screening device for mineral powder according to an embodiment of the present invention Figure 1 of the partial structure three-dimensional diagram;

[0017] Figure 3 is an automatic screening device for mineral powder according to an embodiment of the present invention Figure 1 of the front view sectional view;

[0018] Figure 4 is an automatic screening device for mineral powder according to an embodiment of the present invention Figure 3 of the filter screen top view. Detailed Description of the Invention

[0019] The following is further detailed through specific embodiments:

[0020] The reference numerals in the drawings of the specification include: silo 1, hollow cylinder 2, motor 3, spiral blade shaft 4, discharge port 5, feed port 6, diversion cover 7, filter screen 8, vibration type anti-blocking mechanism 9, special-shaped rod 10, support ring 11, support leg 12, feed hopper 13, sliding seat 91, support block 92, guide rod 93, spring 94, protective sleeve 95, striking rod 96.

[0021] Such as Figure 1 , Figure 2 , Figure 3 , Figure 4As shown in the figure, this embodiment provides an automatic screening device for mineral powder, which includes a silo 1. Inside the upper end of the silo 1, a hollow cylinder 2 is fixedly connected. At the upper end of the hollow cylinder 2, a motor 3 is fixedly installed. The output shaft of the motor 3 penetrates the hollow cylinder 2 and is connected to the hollow cylinder 2 through a bearing. The end of the output shaft is fixedly connected to a spiral blade shaft 4, and the spiral blade shaft 4 is rotatably connected to the inner side of the hollow cylinder 2. An outlet 5 is provided in the upper part of the side wall of the hollow cylinder 2, and an inlet 6 is provided in the lower part of the side wall of the hollow cylinder 2. Through the settings of the outlet 5 and the inlet 6, it is convenient for the mineral powder to enter and exit the hollow cylinder 2. The outside of the hollow cylinder 2 is fixedly connected with a diversion hood 7, and the diversion hood 7 is made of stainless steel. Through the setting of the diversion hood 7, it has a diversion effect on the mineral powder discharged from the hollow cylinder 2. The lower section of the shaft body of the spiral blade shaft 4 is fixedly connected with a special-shaped rod 10. In the middle of the inner side of the silo 1, a filter screen 8 is slidably connected, and the filter screen 8 is slidably connected to the outside of the hollow cylinder 2.

[0022] As Figure 1 , Figure 2 shown in the figure, a support ring 11 is fixedly connected to the outside of the silo 1, and a support leg 12 is fixedly connected to the bottom of the support ring 11. Through the settings of the support ring 11 and the support leg 12, it has a supporting effect on the whole. On the top of the silo 1 and on both sides of the motor 3, feeding hoppers 13 are fixedly connected, and the two feeding hoppers 13 are symmetrically distributed. Through the setting of the feeding hoppers 13, it is convenient to add mineral powder into the silo 1.

[0023] As Figure 2 shown in the figure, a vibration type anti-blocking mechanism 9 is arranged below the filter screen 8. The vibration type anti-blocking mechanism 9 includes a sliding seat 91. The sliding seat 91 is slidably connected to the inside of the silo 1. The sliding seat 91 is fixedly connected to the filter screen 8. On the inner wall of the silo 1 and below the sliding seat 91, a support block 92 is fixedly connected. The upper end of the support block 92 is fixedly connected with a guide rod 93. The guide rod 93 is slidably connected to the sliding seat 91. A spring 94 is arranged inside the sliding seat 91. One end of the spring 94 is fixedly connected to the guide rod 93, and the other end of the spring 94 is fixedly connected to the inner surface of the sliding seat 91. The bottom of the sliding seat 91 is fixedly connected with a collision rod 96. Through the setting of the vibration type anti-blocking mechanism 9, the blockage of the filter screen 8 can be prevented. A protective sleeve 95 is fixedly connected to the upper end of the support block 92 and outside the guide rod 93, and the protective sleeve 95 is fixedly connected to the sliding seat 91. Through the setting of the protective sleeve 95, it has a protective effect on the spring 94.

[0024] The specific implementation process of the present utility model is as follows: When in use, first start the motor 3, the motor 3 drives the spiral blade shaft 4 to rotate, then add the powder material into the silo 1 through the feed hopper 13. Subsequently, the mineral powder will be screened by the filter screen 8, and the mineral powder intercepted by the filter screen 8 will enter the hollow cylinder 2 from the feed port 6, and then be spirally conveyed upward by the spiral blade shaft 4, and then discharged from the discharge port 5, and then filtered again, thereby improving the filtration efficiency. In addition, during the rotation of the spiral blade shaft 4, the special-shaped rod 10 at the lower section of its shaft body will periodically collide with the impact rod 96 in the vibration type anti-blocking mechanism 9, and give an upward thrust to the impact rod 96. Then, under the elastic force of the spring 94, the slide seat 91 and the filter screen 8 can be vibrated. In this way, on the one hand, it can accelerate the filtration of the mineral powder, and on the other hand, it can also prevent the blockage of the filter screen 8 itself.

[0025] In this solution, a hollow cylinder 2 is arranged inside the silo 1, a spiral blade shaft 4 driven by a motor 3 is arranged on the hollow cylinder 2, and a discharge port 5 and a feed port 6 are opened on the cylinder wall of the hollow cylinder 2. In this way, the mineral powder can be fed twice through the spiral blade shaft 4, so that the mineral powder can be effectively filtered, improving the efficiency.

[0026] By arranging a vibration type anti-blocking mechanism 9 below the filter screen 8, during the rotation of the spiral blade shaft 4, the special-shaped rod 10 at the lower section of its shaft body will periodically collide with the impact rod 96 in the vibration type anti-blocking mechanism 9, and give an upward thrust to the impact rod 96. Then, under the elastic force of the spring 94, the filter screen 8 can be vibrated. On the one hand, it can accelerate the filtration of the mineral powder, and on the other hand, it can also prevent its own blockage.

[0027] It should be noted in advance that in the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0028] The above are only the embodiments of the present invention, and common knowledge such as the specific structures and characteristics in the solutions are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. An automatic screening device for mineral powder, comprising a silo, characterized in that: A hollow cylinder is fixedly connected to the inside of the upper end of the silo, and a motor is fixedly installed on the upper end of the hollow cylinder. The output shaft of the motor passes through the hollow cylinder and is connected to the hollow cylinder through a bearing. The end of the output shaft is fixedly connected to a spiral blade shaft, and the spiral blade shaft is rotatably connected to the inner side of the hollow cylinder. A special-shaped rod is fixedly connected to the lower section of the shaft body of the spiral blade shaft. A filter screen is slidably connected to the middle part of the inner side of the silo, and the filter screen is slidably connected to the outer side of the hollow cylinder. A vibrating anti-blocking mechanism is arranged below the filter screen.

2. The automatic screening device for mineral powder according to claim 1, characterized in that: The upper part of the side wall of the hollow cylinder is provided with a discharge port, and the lower part of the side wall of the hollow cylinder is provided with a feed port.

3. The automatic screening device for mineral powder according to claim 1, characterized in that: The outer side of the hollow cylinder is fixedly connected with a flow guide cover, and the flow guide cover is made of stainless steel.

4. The automatic screening device for mineral powder according to claim 1, characterized in that: A support ring is fixedly connected to the outer side of the silo, and a support leg is fixedly connected to the bottom of the support ring.

5. The automatic screening device for mineral powder according to claim 1, characterized in that: The top of the silo and both sides of the motor are fixedly connected with feeding hoppers, and the two feeding hoppers are symmetrically distributed.

6. The automatic screening device for mineral powder according to claim 1, characterized in that: The vibration type anti-blocking mechanism includes a slide seat, which is slidably connected to the inner side of the silo, and the slide seat is fixedly connected to the filter screen. A support block is fixedly connected to the inner wall of the silo and located below the slide seat. The upper end of the support block is fixedly connected to a guide rod, and the guide rod is slidably connected to the slide seat. A spring is arranged inside the slide seat, one end of the spring is fixedly connected to the guide rod, and the other end of the spring is fixedly connected to the inner surface of the slide seat, and a collision rod is fixedly connected to the bottom of the slide seat.

7. The automatic screening device for mineral powder according to claim 6, characterized in that: A protective sleeve is fixedly connected to the upper end of the support block and located on the outer side of the guide rod, and the protective sleeve is fixedly connected to the slide seat.

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