Multi-channel separation equipment for detecting fineness of pulverized coal

Abstract

The utility model discloses multi-channel separation equipment for pulverized coal fineness detection, which relates to the technical field of pulverized coal fineness detection and comprises a shell, a feeding pipe is fixed in the middle of the top of the shell, mounting frames are uniformly fixed on the inner side wall of the shell, and sliding rods are fixed at four corners of the top of each mounting frame. A movable frame is arranged on the outer side of the sliding rod in a sliding mode, the outer side of the sliding rod is sleeved with a connecting spring, a vibration motor is fixed to the edge of the bottom of the movable frame, a connecting mechanism is arranged at the top of the movable frame, a screen frame is connected to the top of the movable frame through the connecting mechanism, and a sweeping mechanism is arranged in the screen frame. According to the multi-channel separation equipment for detecting the fineness of the pulverized coal, the cleaning brush is driven to move in a reciprocating mode through the arrangement of the cleaning mechanism, meshes of the screen frame are cleaned, the situation that the meshes are blocked by pulverized coal with the diameter similar to that of the meshes is avoided, the passing rate is prevented from being influenced, and the detection precision is prevented from being influenced.

Description

Technical Field

[0001] This utility model relates to the field of coal powder fineness detection technology, specifically a multi-channel separation device for coal powder fineness detection. Background Technology

[0002] When testing coal powder, it is generally necessary to sieve the coal powder using separation equipment to determine its fineness. Coal powder fineness generally refers to the proportion of coal powder remaining on the sieve during testing. If the sieve aperture remains constant, the more coal powder remaining on the sieve, the finer the fineness and the coarser the coal powder. However, coal powder fineness can be expressed as the percentage of the amount of coal powder remaining on the sieve to the total amount of coal powder, or as the percentage of the amount of coal powder passing through the sieve to the total amount of coal powder.

[0003] Current separation devices used for coal powder detection often cause some coal powder with a diameter similar to the mesh diameter to get stuck in the mesh during sieving. This can lead to screen blockage, affecting throughput and detection accuracy. To address this, we have proposed a multi-channel separation device for coal powder fineness detection. Utility Model Content

[0004] The purpose of this invention is to provide a multi-channel separation device for detecting the fineness of pulverized coal, in order to solve the problem that in the existing separation settings for detection, some pulverized coal will get stuck in the mesh of the screen during sieving, causing screen blockage, affecting throughput efficiency and detection accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-channel separation device for detecting the fineness of pulverized coal, comprising a housing, a feeding pipe fixed at the top center of the housing, mounting frames evenly fixed on the inner sidewall of the housing, sliding rods fixed at the top four corners of the mounting frames, a movable frame sliding on the outer side of the sliding rods, a connecting spring sleeved on the outer side of the sliding rods, a vibration motor fixed at the bottom edge of the movable frame, a connecting mechanism provided at the top of the movable frame, a screen frame connected to the top of the movable frame through the connecting mechanism, and a cleaning mechanism provided inside the screen frame.

[0006] Preferably, the cleaning mechanism includes a fixed frame fixed to the middle of the rear side of the screen frame, a drive motor fixed to one side of the fixed frame, a turntable fixed to the output shaft end of the drive motor, an extrusion column fixed to one side of the turntable, limit blocks symmetrically fixed to the top edge of the screen frame, a connecting rod slidingly through one side of the top of the limit block, a U-shaped frame fixed to the opposite ends of the two connecting rods, an L-shaped rod fixed to one side of the connecting rod, a mounting plate fixed to the bottom end of the L-shaped rod, and a cleaning brush fixed to the bottom of the mounting plate by screws.

[0007] Preferably, the input end of the drive motor is electrically connected to the output end of the external power supply, the deflection circumference diameter of the extrusion column is smaller than the inner length of the U-shaped frame to avoid motion interference, and the cleaning brush is attached to the bottom of the screen frame to facilitate cleaning of the bottom of the screen frame and prevent clogging.

[0008] Preferably, the extrusion column is located inside the spiral frame, and the outer wall of the extrusion column is in contact with the inner wall of the spiral frame, so that the extrusion column can extrude the spiral frame and make the spiral frame move.

[0009] Preferably, the mesh diameter of the top sieve frame is larger than that of the bottom sieve frame, which facilitates grading and screening. The upper and lower ends of the connecting spring are fixedly connected to the bottom of the moving frame and the top of the mounting frame, respectively, so that the moving frame can be moved up and down by the connecting spring during vibration. The input end of the vibration motor is electrically connected to the output end of an external power supply.

[0010] Preferably, the connecting mechanism includes symmetrical slots at the bottom center of both sides of the screen frame, a mounting box symmetrically fixed to the top of the mounting frame, a return spring uniformly fixed to one side of the inside of the mounting box, a connecting plate fixed to one end of the return spring, a locking block fixed to the center of one side of the connecting plate, a screw hole opened at the center of the top of the connecting plate, and a bolt connected through the top edge of the mounting box.

[0011] Preferably, the connecting plate slides inside the mounting box, and the outer side wall of the connecting plate fits against the inner side wall of the mounting box to ensure stable movement of the connecting plate. The locking block passes through the middle of one side of the mounting box, and both sides of the locking slot and both sides of the locking block are provided with inclined surfaces.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this application, the cleaning mechanism is designed so that the turntable is driven by the start of the drive motor, which causes the extrusion column to deflect circumferentially. This causes the extrusion column to extrude the U-shaped frame, which in turn causes the U-shaped frame to move back and forth. This causes the connecting rod to move the L-shaped rod back and forth, which in turn causes the mounting plate to move back and forth, which in turn causes the cleaning brush to move back and forth, thus cleaning the mesh of the screen frame. This prevents coal powder with a diameter similar to the mesh from clogging the mesh, thus preventing the throughput from being affected and the detection accuracy from being affected.

[0014] 2. In this application, by using the connection mechanism, the screen frame is pulled by unscrewing the bolt from the screw hole, causing the inclined surface of the slot to press against the inclined surface of the block. This causes the block to move the connecting plate, which in turn presses against the reset spring, causing the block to move out of the slot and release the screen frame from its fixation. This facilitates the disassembly of the screen frame and makes it easier to collect the coal powder left inside the screen frame, improving the convenience of collection and the practicality of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connecting spring mounting structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the cleaning mechanism structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the connection mechanism structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the main structure of the cleaning mechanism of this utility model.

[0020] Labels in the diagram: 100, outer casing; 200, feeding pipe; 300, mounting frame; 310, sliding rod; 320, moving frame; 330, connecting spring; 340, vibrating motor; 400, screen frame; 500, cleaning mechanism; 510, fixing frame; 520, drive motor; 530, turntable; 540, extrusion column; 550, limit block; 560, connecting rod; 570, U-shaped frame; 580, L-shaped rod; 590, mounting plate; 591, cleaning brush; 600, connecting mechanism; 610, slot; 620, mounting box; 630, return spring; 640, connecting plate; 650, locking block; 660, screw hole; 670, bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Figures 1-5As shown, this utility model provides a technical solution for a multi-channel separation device for detecting the fineness of pulverized coal. It includes a housing 100, a feeding pipe 200 fixed at the top center of the housing 100, an installation frame 300 uniformly fixed to the inner wall of the housing 100, sliding rods 310 fixed at the four corners of the top of the installation frame 300, a movable frame 320 sliding on the outer side of the sliding rods 310, a connecting spring 330 sleeved on the outer side of the sliding rods 310, a vibration motor 340 fixed to the bottom edge of the movable frame 320, a connecting mechanism 600 at the top of the movable frame 320, and a screen frame 400 connected to the top of the movable frame 320 via the connecting mechanism 600. A cleaning mechanism 500 is provided inside the screen frame 400. The mesh diameter of the top screen frame 400 is larger than that of the bottom screen frame 400. The upper and lower ends of the connecting spring 330 are fixedly connected to the bottom of the movable frame 320 and the top of the installation frame 300, respectively. The input end of the vibration motor 340 is electrically connected to the output end of an external power supply.

[0023] Please see Figure 2 and Figure 3 The cleaning mechanism 500 includes a fixed frame 510 fixed to the middle of the rear side of the screen frame 400. A drive motor 520 is fixed to one side of the fixed frame 510. A turntable 530 is fixed to the end of the output shaft of the drive motor 520. An extrusion column 540 is fixed to one side of the turntable 530. Limit blocks 550 are symmetrically fixed to the top edge of the screen frame 400. A connecting rod 560 slides through the top of one side of the limit block 550. A U-shaped frame 570 is fixed to the opposite ends of the two connecting rods 560. An L-shaped rod 580 is fixed to one side of the connecting rod 560. A mounting plate 590 is fixed to the bottom end of the L-shaped rod 580. A cleaning brush 591 is fixed to the bottom of the mounting plate 590 by screws. The input end of the drive motor 520 is electrically connected to the output end of an external power supply. The extrusion column 540 deflects in a circular direction. The diameter is smaller than the inner length of the U-shaped frame 570, and the cleaning brush 591 is attached to the bottom of the screen frame 400; the extrusion column 540 is located inside the U-shaped frame 570, and the outer wall of the extrusion column 540 is attached to the inner wall of the U-shaped frame 570; by using the cleaning mechanism 500, the drive motor 520 is started, which drives the turntable 530 to rotate, causing the extrusion column 540 to deflect circumferentially, thereby causing the extrusion column 540 to extrude the U-shaped frame 570, causing the U-shaped frame 570 to move back and forth, thereby causing the connecting rod 560 to drive the L-shaped rod 580 to move back and forth, causing the mounting plate 590 to move back and forth, and driving the cleaning brush 591 to move back and forth, cleaning the mesh of the screen frame 400, avoiding coal powder with a diameter similar to the mesh to clog the mesh, preventing the throughput from being affected, and avoiding affecting the detection accuracy.

[0024] Please see Figure 3 and Figure 4The connecting mechanism 600 includes symmetrical slots 610 at the bottom center of both sides of the screen frame 400. A mounting box 620 is symmetrically fixed to the top of the mounting frame 300. A return spring 630 is evenly fixed to one side of the interior of the mounting box 620. A connecting plate 640 is fixed to one end of the return spring 630. A locking block 650 is fixed to the center of one side of the connecting plate 640. A screw hole 660 is opened at the center of the top of the connecting plate 640. A bolt 670 is passed through the top edge of the mounting box 620. The connecting plate 640 slides inside the mounting box 620, and the outer wall of the connecting plate 640 fits against the inner wall of the mounting box 620. The locking block 650 passes through the mounting box 620. The middle of one side of the box 620, both sides of the slot 610 and both sides of the block 650 are provided with inclined surfaces. By using the connecting mechanism 600, the bolt 670 is unscrewed from the screw hole 660, and the screen frame 400 is pulled. This causes the inclined surface of the slot 610 to press against the inclined surface of the block 650, which in turn causes the block 650 to move the connecting plate 640 and press against the reset spring 630. This causes the block 650 to move out of the slot 610, releasing the screen frame 400 from its fixation. This facilitates the disassembly of the screen frame 400 and makes it easier to collect the coal powder left inside the screen frame 400, improving the convenience of collection and the practicality of the device.

[0025] In use, the following steps are taken: The vibration motor 340 and drive motor 520 are started, and coal powder is poured into the feeding pipe 200, falling into the top screen frame 400. The vibration of the vibration motor 340 is amplified by the connecting spring 330, causing the moving frame 320 to reciprocate outside the slide rod 310, thus sieving the coal powder through the screen frame 400. The start of the drive motor 520 drives the turntable 530 to rotate, causing the extrusion column 540 to deflect circumferentially. This causes the extrusion column 540 to extrude the U-shaped frame 570, causing the U-shaped frame 570 to reciprocate. This reciprocating motion of the U-shaped frame 570 causes the connecting rod 560 to drive the L-shaped rod 580 to reciprocate, and consequently, the mounting plate 590 to reciprocate. The movement of the cleaning brush 591 cleans the mesh of the screen frame 400 to prevent clogging. After screening and testing, the bolt 670 is unscrewed from the bolt hole 660, and the screen frame 400 is pulled. This causes the inclined surface of the slot 610 to press against the inclined surface of the block 650, which in turn causes the block 650 to move the connecting plate 640. This presses against the return spring 630, causing the block 650 to move out of the slot 610, thus releasing the screen frame 400 from its fixation. This facilitates the disassembly of the screen frame 400 and allows for the collection and removal of coal powder remaining inside the screen frame 400. The ratio of coal powder remaining inside the screen frame 400 to the total coal powder is then calculated to determine the fineness of the coal powder and complete the grading test.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-channel separation device for detecting the fineness of pulverized coal, characterized in that: The device includes an outer shell (100), a feeding pipe (200) fixed at the top center of the outer shell (100), an installation frame (300) evenly fixed on the inner side wall of the outer shell (100), a sliding rod (310) fixed at the top four corners of the installation frame (300), a moving frame (320) sliding on the outside of the sliding rod (310), a connecting spring (330) sleeved on the outside of the sliding rod (310), a vibration motor (340) fixed at the bottom edge of the moving frame (320), a connecting mechanism (600) provided at the top of the moving frame (320), a screen frame (400) connected to the top of the moving frame (320) through the connecting mechanism (600), and a cleaning mechanism (500) provided inside the screen frame (400).

2. The multi-channel separation device for detecting the fineness of pulverized coal according to claim 1, characterized in that: The cleaning mechanism (500) includes a fixed frame (510) fixed to the middle of the rear side of the screen frame (400). A drive motor (520) is fixed to one side of the fixed frame (510). A turntable (530) is fixed to the end of the output shaft of the drive motor (520). An extrusion column (540) is fixed to one side of the turntable (530). Limit blocks (550) are symmetrically fixed to the top edge of the screen frame (400). A connecting rod (560) slides through the top of one side of the limit block (550). A U-shaped frame (570) is fixed to the opposite ends of the two connecting rods (560). An L-shaped rod (580) is fixed to one side of the connecting rod (560). A mounting plate (590) is fixed to the bottom end of the L-shaped rod (580). A cleaning brush (591) is fixed to the bottom of the mounting plate (590) by screws.

3. The multi-channel separation device for detecting the fineness of pulverized coal according to claim 2, characterized in that: The input end of the drive motor (520) is electrically connected to the output end of the external power supply. The deflection circumference diameter of the extrusion column (540) is smaller than the inner length of the spiral frame (570). The cleaning brush (591) is attached to the bottom of the screen frame (400).

4. The multi-channel separation device for detecting the fineness of pulverized coal according to claim 3, characterized in that: The extrusion post (540) is located inside the spiral frame (570), and the outer wall of the extrusion post (540) is in contact with the inner wall of the spiral frame (570).

5. The multi-channel separation device for detecting the fineness of pulverized coal according to claim 1, characterized in that: The mesh diameter of the top sieve frame (400) is larger than that of the bottom sieve frame (400). The upper and lower ends of the connecting spring (330) are fixedly connected to the bottom of the moving frame (320) and the top of the mounting frame (300), respectively. The input end of the vibration motor (340) is electrically connected to the output end of the external power supply.

6. The multi-channel separation device for detecting the fineness of pulverized coal according to claim 1, characterized in that: The connecting mechanism (600) includes symmetrical slots (610) at the bottom center of both sides of the screen frame (400). The top of the mounting frame (300) is symmetrically fixed with mounting boxes (620). A return spring (630) is uniformly fixed on one side inside the mounting box (620). A connecting plate (640) is fixed to one end of the return spring (630). A locking block (650) is fixed to the center of one side of the connecting plate (640). A screw hole (660) is opened in the center of the top of the connecting plate (640). A bolt (670) is connected through the top edge of the mounting box (620).

7. The multi-channel separation device for detecting the fineness of pulverized coal according to claim 6, characterized in that: The connecting plate (640) slides inside the mounting box (620), and the outer side wall of the connecting plate (640) is in contact with the inner side wall of the mounting box (620). The locking block (650) penetrates the middle of one side of the mounting box (620). Both sides of the locking groove (610) and both sides of the locking block (650) are provided with inclined surfaces.

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