Closed classification vibrating screen for powder and rust removal of neodymium iron boron magnetic steel

Abstract

The utility model discloses a closed classification vibrating screen for powder and rust removal of neodymium iron boron magnetic steel, which comprises a vibrating screening seat, a damping spring is mounted at the top of the vibrating screening seat, a second-layer screen box is mounted at the top of the damping spring, a first-layer screen box is mounted at the top of the second-layer screen box, and a second-layer screen box is mounted at the top of the first-layer screen box. A cover plate is arranged on the top of the first-layer screen box, a feeding port is formed in the cover plate, and a protective gas inlet is formed in the position, located on one side of the feeding port, of the top of the cover plate. According to the vibrating screen structure with the adjusting mode, when the vibrating screen is used for processing and screening and materials fall down to be received, the discharging connector can be adjusted through the yarn-dyed telescopic structure, the materials can be received more conveniently and collected conveniently through telescopic adjustment of the discharging connector, and meanwhile the discharging connector can be adjusted in a telescopic mode; and after being used, the device is retracted, so that the temporary use space can be reduced, and meanwhile, the device is relatively convenient to transport, so that the practicability and convenience of the device are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of graded vibrating screens, and in particular relates to a closed graded vibrating screen used for removing powder and rust from NdFeB magnetic steel. Background Art

[0002] The grading vibrating screen is a machine that uses a vibrating screen surface to grade a mixture of particles of different sizes according to particle size. Its working principle is based on the screening of materials on the vibrating screen surface. The material enters the screen surface through the feed port. The vibration force of the vibrating screen machine produces a reciprocating vibration motion trajectory. The material moves forward under the action of the vibration force and gradually separates into layers on the screen surface. At the same time, due to the different particle sizes of the materials, the sizes of the screen holes are also different, so that the screening of materials of different particle sizes can be achieved.

[0003] The patent with application number 201920153596.7 discloses a graded vibrating screen with a gas protection structure. By adding a gas protection device, the direct contact between bacterial powder and oxygen and moisture is reduced, the stability of lactic acid bacteria powder is improved, and the possibility of leakage of lactic acid bacteria powder is reduced, so that the material can be fully utilized; in combination with the above application, and in connection with the existing graded vibrating screen, when the graded vibrating screen is used to remove powder and rust from NdFeB magnetic steel, the commonly used graded vibrating screen has a fixed discharge position and cannot be adjusted. If the length of the discharge port is long and occupies a large space, it will also affect the convenience of transportation, thereby affecting the practicability of the device. For this reason, we propose a closed graded vibrating screen for removing powder and rust from NdFeB magnetic steel. Utility Model Content

[0004] The purpose of the utility model is to provide a closed grading vibrating screen for removing powder and rust from NdFeB magnets, so as to solve the problem raised in the above background technology that when using a grading vibrating screen to remove powder and rust from NdFeB magnets, the discharge position of the commonly used grading vibrating screen is fixed and cannot be adjusted. If the length of the discharge port is long, it will occupy a large space and affect the convenience of transportation, thereby affecting the practicability of the device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a closed grading vibrating screen for removing powder and rust from NdFeB magnetic steel, comprising a vibrating screening seat, a damping spring is installed on the top of the vibrating screening seat, a second-layer screen box is installed on the top of the damping spring, a first-layer screen box is installed on the top of the second-layer screen box, a cover plate is installed on the top of the first-layer screen box, a feed port is opened on the cover plate, a protective gas inlet is opened on the top of the cover plate located on the side of the feed port, a second-layer discharge interface is arranged on the second-layer screen box, a layer of discharge interface is arranged on one side of the first-layer screen box, a telescopic discharge pipe is installed on the front surface of the second-layer screen box, the second-layer discharge interface is installed on the second-layer screen box through the telescopic discharge pipe, a sealing strip is installed on one end of the inner surface of the second-layer discharge interface, telescopic slide grooves are opened on both sides of the inner surface of the second-layer discharge interface, a positioning bolt is installed on one end of the top of the second-layer discharge interface, and sliding protrusions are arranged at both ends of the inner side of the telescopic discharge pipe.

[0006] Preferably, the telescopic discharge pipe and the second-layer discharge interface are slidably installed via a sliding protrusion and a telescopic sliding groove.

[0007] Preferably, the first layer screen box and the telescopic discharge pipe are sealed by a sealing strip and fixed by positioning bolts.

[0008] Preferably, the first-layer discharging interface and the second-layer discharging interface have the same mounting structure, and the second-layer discharging interface and the first-layer discharging interface are both telescopically extended through a telescopic discharging pipe.

[0009] Preferably, a transfer connecting rod is also installed at one end of the second-layer discharge interface, one end of the transfer connecting rod is located at the top of the second-layer discharge interface and a turning handle is installed, a material blocking stacking plate is arranged at the bottom of the transfer connecting rod, and a lower stacking plate is arranged at the bottom of one end of the second-layer discharge interface.

[0010] Preferably, the second-layer discharge interface is closed by rotating the material-blocking stacking plate and the lower stacking plate, and the bottom structure of the first-layer discharge interface is the same.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) By setting up the vibrating screen structure with an adjustment mode, when the vibrating screen in the application is used for processing and screening, when the material falls to be received, the discharge interface can be adjusted through the telescopic structure of the yarn-dyed fabric. By adjusting the telescopic structure of the discharge interface, the material can be received more conveniently and collected more conveniently. At the same time, the discharge interface can be adjusted in a telescopic manner and retracted after use, which can reduce the temporary space and is also more convenient during transportation, thereby improving the practicality and convenience of the device;

[0013] (2) In the process of material falling and receiving, if the material in the hopper is full and the receiving material needs to be replaced, the discharge interface can be closed through the manual closing structure set at the discharge interface to prevent the material from continuing to fall during the replacement process, which is convenient for the receiving and collection of the material. At the same time, it improves the practicality and convenience of the structure and is better for screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the installation structure of the telescopic discharge pipe and the discharge interface of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the discharging interface of the utility model;

[0017] In the figure: 100, vibration screening seat; 101, shock-absorbing spring; 102, second-layer screen box; 103, first-layer screen box; 104, cover plate; 105, protective gas inlet; 106, feed inlet; 107, second-layer discharge interface; 108, first-layer discharge interface; 200, telescopic discharge pipe; 201, sliding protrusion; 202, telescopic slide; 203, sealing strip; 204, positioning bolt; 300, turning handle; 301, transfer connecting rod; 302, material blocking stacking plate; 303, lower stacking plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example 1

[0020] See also Figure 1 , Figure 2 and Figure 3The utility model provides a technical solution: the grading vibrating screen is widely used in many fields, including mining, building materials, chemical industry, food processing and medicine. In the mining field, the vibrating screen plays an important role in ore dressing, coal washing and mine waste treatment. In the field of building materials, the vibrating screen can separate impurities and particles that do not meet the requirements in the raw materials to improve the quality of building materials. In addition, it can also be used for the purification of chemical raw materials, the classification of particulate materials and the screening of catalysts, as well as the screening of food raw materials and the removal of impurities. A closed grading vibrating screen for removing powder and rust from neodymium iron boron magnetic steel includes a vibrating screen seat 100 and a top of the vibrating screen seat 100. A shock absorbing spring 101 is installed, a second-layer screen box 102 is installed on the top of the shock absorbing spring 101, a first-layer screen box 103 is installed on the top of the second-layer screen box 102, a cover plate 104 is fixedly installed on the top of the first-layer screen box 103, a feed port 106 is provided on the cover plate 104, a protective gas inlet 105 is provided on the top of the cover plate 104 on one side of the feed port 106, a second-layer discharge interface 107 is provided on the second-layer screen box 102, a first-layer discharge interface 108 is provided on one side of the first-layer screen box 103, a telescopic discharge pipe 200 is installed on the front surface of the second-layer screen box 102, and the second-layer discharge interface 107 is installed on the second-layer screen box 102 through the telescopic discharge pipe 200. A sealing strip 203 is embedded at one end of the inner surface of the second-layer discharge interface 107, and double-position telescopic slide grooves 202 are opened on both sides of the inner surface of the second-layer discharge interface 107. A positioning bolt 204 is installed at one end of the top of the second-layer discharge interface 107, and integrated sliding protrusions 201 are arranged at both ends of the inner side of the telescopic discharge pipe 200. When the graded vibrating screen in the application is used to remove powder and rust from NdFeB magnetic steel, the screened material enters the screen body through the feed port 106 and is vibrated and screened. Large particles of impurities fall into the first-layer screen box 103 and are screened and discharged from the first-layer discharge interface 108. The screened material falls into the second-layer screen box 102 and is discharged from the second-layer discharge interface 107. When using the discharge port 207 and the discharge port 108 in different positions, in order to more conveniently receive materials, the second-layer discharge port 107 and the first-layer discharge port 108 can be respectively pulled out through the telescopic discharge tube 200. When pulling out, the installed positioning bolt 204 can be loosened, and then the positioning bolt 204 can be slid through the sliding protrusion 201 and the telescopic slide groove 202. When the discharge port is pulled out a certain distance to facilitate the discharge of materials, the positioning bolt 204 can be tightened again to fix it, and a sealing strip 203 is also provided on the inner side of the discharge port for sealing to avoid waste caused by material leakage. After use or during transportation, the discharge port can be retracted, so that the device is convenient for receiving materials and is also convenient for placement and transportation after use, thereby improving the practicability of the device.

[0021] Specifically, the telescopic discharge pipe 200 and the second-layer discharge interface 107 are slidably installed by means of a sliding protrusion 201 and a telescopic slide groove 202. The sliding method facilitates the telescopic adjustment of the second-layer discharge interface 107. The first-layer screen box 103 and the telescopic discharge pipe 200 are also sealed by a sealing strip 203, and are also fixed by positioning bolts 204, which ensures a more stable installation and use, while ensuring the sealing during discharge. The first-layer discharge interface 108 has the same installation structure as the second-layer discharge interface 107, and the second-layer discharge interface 107 and the first-layer discharge interface 108 are both telescopically extended by the telescopic discharge pipe 200, which is convenient for adjustment and use.

[0022] Example 2

[0023] See also Figure 1 and Figure 3 The utility model provides a technical solution: a closed grading vibrating screen for removing powder and rust from NdFeB magnetic steel, one end of the second-layer discharging interface 107 is also equipped with a transfer connecting rod 301, one end of the transfer connecting rod 301 is located at the top of the second-layer discharging interface 107 and a rotating handle 300 is installed, the bottom of the transfer connecting rod 301 is provided with a material blocking stacking plate 302, and the bottom of one end of the second-layer discharging interface 107 is provided with a lower stacking plate 303. When discharging, if the receiving object is full and needs to be replaced, the rotating handle 300 at the top of the discharging interface can be rotated, and the rotating handle 300 drives the transfer connecting rod 301 to rotate, and the rotating transfer connecting rod 301 drives the material blocking stacking plate 302 to rotate, and the material blocking stacking plate 302 is closed with the lower stacking plate 303 set at the bottom of the second-layer discharging interface 107 to prevent the material from continuing to be discharged when the receiving object is replaced, and the manual operation method is more convenient, thereby improving the practicality of the device.

[0024] Specifically, the second-layer discharge interface 107 is closed by rotating the material blocking stacking plate 302 and the lower stacking plate 303. When the material falls, the material blocking stacking plate 302 and the lower stacking plate 303 are rotated open to discharge the material. After rotating and closing, the material can be prevented from falling, and the bottom structure of the first-layer discharge interface 108 is the same, which can better control the discharge of materials.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A closed grading vibrating screen for removing powder and rust from NdFeB magnetic steel, comprising a vibrating screening seat (100), a damping spring (101) being installed on the top of the vibrating screening seat (100), a second-layer screen box (102) being installed on the top of the damping spring (101), and a first-layer screen box (103) being installed on the top of the second-layer screen box (102), characterized in that: A cover plate (104) is installed on the top of the first-layer screen box (103), a feed inlet (106) is provided on the cover plate (104), a protective gas inlet (105) is provided on the top of the cover plate (104) on one side of the feed inlet (106), a second-layer discharge interface (107) is provided on the second-layer screen box (102), a first-layer discharge interface (108) is provided on one side of the first-layer screen box (103), and a telescopic discharge interface (108) is installed on the front surface of the second-layer screen box (102). The second-layer discharge interface (107) is installed on the second-layer screen box (102) through a telescopic discharge pipe (200), a sealing strip (203) is installed at one end of the inner surface of the second-layer discharge interface (107), telescopic sliding grooves (202) are provided on both sides of the inner surface of the second-layer discharge interface (107), a positioning bolt (204) is installed at one end of the top of the second-layer discharge interface (107), and sliding protrusions (201) are provided at both ends of the inner side of the telescopic discharge pipe (200).

2. A closed grading vibrating screen for removing powder and rust from NdFeB magnets according to claim 1, characterized in that: The telescopic discharge pipe (200) is slidably mounted on the second-layer discharge interface (107) via a sliding protrusion (201) and a telescopic sliding groove (202).

3. A closed grading vibrating screen for removing powder and rust from NdFeB magnets according to claim 1, characterized in that: The first layer screen box (103) and the telescopic discharge pipe (200) are sealed by a sealing strip (203) and fixed by positioning bolts (204).

4. A closed grading vibrating screen for removing powder and rust from NdFeB magnets according to claim 1, characterized in that: The first-layer discharge interface (108) and the second-layer discharge interface (107) have the same installation structure, and the second-layer discharge interface (107) and the first-layer discharge interface (108) are both telescopically extended through a telescopic discharge pipe (200).

5. The closed grading vibrating screen for removing powder and rust from NdFeB magnets according to claim 1, characterized in that: A transfer connecting rod (301) is also installed at one end of the second-layer discharge interface (107), a transfer connecting rod (301) is located at the top of the second-layer discharge interface (107) and is provided with a rotating handle (300), a material blocking stacking plate (302) is arranged at the bottom of the transfer connecting rod (301), and a lower stacking plate (303) is arranged at the bottom of one end of the second-layer discharge interface (107).

6. A closed grading vibrating screen for removing powder and rust from NdFeB magnets according to claim 5, characterized in that: The second-layer discharge interface (107) is closed by rotating the material blocking stacking plate (302) and the lower stacking plate (303), and the bottom structure of the first-layer discharge interface (108) is the same.

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