Small laboratory device of grinding and screening all-in-one machine
By designing a small laboratory device including a pre-crumbing mechanism, a grinding cutter plate, a material net and a vibrating screening network, the complex and safety risks of the screening process of biomass energy sample particles is solved, and an efficient and safe grinding and screening process is achieved.
Patent Information
- Application Number
- CN202420440318.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-07
AI Technical Summary
The pellet screening process of biomass energy samples in existing laboratories is complex and the equipment configuration costs are high, which increases the safety operation risks of experimental personnel.
A small laboratory device for grinding and screening integrated machine is designed, including a pre-crumbing mechanism, a grinding cutter plate, a material net and a vibrating screen net. The pre-crumbing, grinding and screening of materials is achieved through a series of motor drives and vibration mechanisms.
The device can directly grind and screen experimental materials within 10 cm, reducing the labor intensity and safety risks of the experimenters, improving the experimental efficiency, and meeting different particle size requirements.
Smart Images
Figure CN222567936U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grinding and screening, in particular to a small laboratory device of a grinding and screening integrated machine. Background Art
[0002] Biomass energy is an environmentally friendly alternative energy source. It uses biomass as a carrier, converts solar energy into chemical energy and stores it in biomass. It is environmentally friendly. Before production, biomass energy needs to be tested in the laboratory to improve production efficiency. The laboratory has strict requirements on the particles of the samples. At present, the laboratory mainly screens the samples again after crushing them, and screens out particles with diameters of 1mm, 3mm, 6mm, 13mm and 30mm one by one, resulting in high equipment configuration costs and complicated processes. It also increases the safety operation risks of the experimenters. Therefore, a small laboratory device with a grinding and screening machine is needed to solve the above problems. Utility Model Content
[0003] The purpose of the utility model is to provide a small laboratory device of a grinding and screening all-in-one machine to solve the above-mentioned multiple defects caused by the prior art.
[0004] A small laboratory device of a grinding and screening all-in-one machine comprises a bottom box, wherein a supporting groove connected to the inside of the bottom box is installed at the upper end of the bottom box, a sealing cover for sealing the grinding chamber is hinged on one side of the supporting groove, a feeding groove is installed on the side wall of the sealing cover, a feeding hopper is installed at the upper end of the feeding trough, a first motor for driving a pre-crushing mechanism is installed on the side wall of the lower end of the bucket body of the feeding hopper, a second motor is installed on the side of the supporting groove away from the sealing cover, a grinding cutter disc is installed at the output end of the second motor, a bracket is installed in the grinding chamber of the supporting groove, a material net is installed on the bracket, several groups of supporting platforms are installed on the inner wall of the bottom box, columns are installed on the supporting platforms, a screening net is sleeved on the columns in the same group, a spring coaxially arranged with the supporting platform is connected between the screening net and the supporting platform, and a vibration mechanism for driving the screening net to vibrate is installed on the inner side wall of the bottom box.
[0005] Preferably, the pre-crushing mechanism includes a rotating rod symmetrically connected to the side wall of the lower end of the feed hopper body, two rotating rods are located on the side wall inside the feed hopper and are equipped with staggered knife discs, one end of the two rotating rods rotate synchronously through meshing spur gears, and the end of one rotating rod away from the spur gear is connected to the output end of the first motor.
[0006] Preferably, the vibration mechanism includes a third motor installed on one side of the bottom box, the output end of the third motor is located on the inner side of the bottom box and is installed with a connecting rod, one end of the connecting rod is rotatably connected to the inner wall of the bottom box, and cams are symmetrically installed near both ends of the connecting rod, the side wall of the cam abuts against one end of the driving rod, the driving rod is slidably connected to the inner wall of the bottom box, and the screening net is provided with a supporting ear rotatably connected to the driving rod near the driving rod side.
[0007] Preferably, the bottom box is provided with a discharge port at one end of the screening net, and a material guide trough is provided on the side wall of the bottom box and at the lower end position of the discharge port.
[0008] Preferably, the sieve aperture sizes of the sieve net from top to bottom are 13 mm, 6 mm, 3 mm, 1 mm and 0.5 mm, and the sieve aperture of the material net is 30 mm.
[0009] Preferably, a threaded rod is rotatably connected to one side of the support groove, a locking handle is threadedly connected to the threaded rod, and an embedding block capable of being inserted into the threaded rod is provided on the sealing cover.
[0010] Preferably, a drawer is inserted into the bottom box near the bottom end, and the drawer abuts against the inner bottom side of the bottom box.
[0011] The advantages of the utility model are as follows: the utility model drives the rotating rod to rotate by the first motor, and the rotating rod drives the cutter disc to rotate, the rotating cutter disc performs a pre-crushing operation on the material, the pre-crushed material falls into the supporting groove, and the grinding cutter disc is driven by the second motor to grind the pre-crushed material, the ground material passes through the material net for initial screening and then falls onto the uppermost screening net, the third motor drives the vibration mechanism to vibrate the screening net, and the screening is performed one by one through the screening net, eliminating the process of grinding the experimental material by special equipment and then performing secondary grinding and screening, thereby reducing the labor intensity of the experimenters and reducing the safety risks; the integrated device can directly grind and screen the experimental materials within 10 cm, meet the requirements of different particle sizes, and improve the experimental efficiency; the grinding and screening of different particle requirements of biomass fuel can be completed at one time, reducing the work intensity. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 , Figure 2 It is a schematic diagram of the structure of the utility model from different perspectives.
[0013] Figure 3 It is a schematic diagram of the structure inside the feed hopper of the utility model.
[0014] Figure 4 It is a schematic diagram of the structure inside the support groove of the utility model.
[0015] Figure 5It is a schematic diagram of the structure inside the bottom box of the utility model.
[0016] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of A.
[0017] Among them: 1-bottom box; 2-support groove; 3-sealing cover; 4-feeding groove; 5-feeding hopper; 6-pre-crushing mechanism; 7-first motor; 8-second motor; 9-grinding cutter disc; 10-bracket; 11-material net; 12-support table; 13-column; 14-screening net; 15-spring; 16-vibration mechanism; 17-rotating rod; 18-cutting disc; 19-spur gear; 20-third motor; 21-connecting rod; 22-cam; 23-driving rod; 24-supporting ear; 25-discharge port; 26-material guide groove; 27-threaded rod; 28-locking handle; 29-embedded block; 30-drawer. DETAILED DESCRIPTION
[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0019] like Figures 1 to 6 As shown, a small laboratory device of a grinding and screening integrated machine comprises a bottom box 1, a support groove 2 communicating with the inside of the bottom box 1 is installed at the upper end of the bottom box 1, a sealing cover 3 for sealing the grinding chamber is hinged on one side of the support groove 2, a feed groove 4 is installed on the side wall of the sealing cover 3, a feed hopper 5 is installed on the upper end of the feed groove 4, a first motor 7 driving a pre-crushing mechanism 6 is installed on the side wall of the bucket body of the feed hopper 5, a second motor 8 is installed on the side of the support groove 2 away from the sealing cover 3, and the second motor 8 The output end of the bottom box 1 is provided with a grinding disc 9, a bracket 10 is provided in the grinding chamber of the support slot 2, a material net 11 is provided on the bracket 10, a plurality of groups of support platforms 12 are provided on the inner wall of the bottom box 1, a column 13 is provided on the support platform 12, a screening net 14 is sleeved on the columns 13 in the same group, a spring 15 coaxially arranged with the support platform 12 is connected between the screening net 14 and the support slot 12, and a vibration mechanism 16 for driving the screening net 14 to vibrate is provided on the inner side wall of the bottom box 1. The first motor 7 and the second motor 8 are both electrically connected to the on-site power supply, a through slot connected to the feed slot 4 is provided on the sealing cover 3, and the support slot 2 and the feed slot 4 are connected through the through slot, the second motor 8 drives the grinding disc 9 to rotate and cooperates with the material net 11 to grind the pre-crushed material, so that after the experimental material is ground into the required particle size, it is pre-screened through the material net 11, and the pre-screened ground material falls onto the topmost screening net 14.
[0020] In this embodiment, the pre-crushing mechanism 6 includes a rotating rod 17 symmetrically connected to the side wall of the lower end of the feed hopper 5, and two rotating rods 17 are located on the side wall of the inner side of the feed hopper 5 and are installed with mutually staggered cutter discs 18, one end of the two rotating rods 17 rotates synchronously through meshing spur gears 19, and one end of one rotating rod 17 away from the spur gear 19 is connected to the output end of the first motor 7. The first motor 7 drives one rotating rod 17 to rotate, and one rotating rod 17 drives another rotating rod 17 through the meshing spur gear 19, and the two rotating rotating rods 17 drive the cutter disc 18 to rotate, so as to pre-crush the experimental material in the feed hopper 5, and the obtained pre-crushed material enters the material net 11 of the support trough 2 through the feed trough 4.
[0021] In this embodiment, the vibration mechanism 16 includes a third motor 20 installed on one side of the bottom box 1, the output end of the third motor 20 is located on the inner side of the bottom box 1 and is installed with a connecting rod 21, one end of the connecting rod 21 is rotatably connected to the inner wall of the bottom box 1, and the connecting rod 21 is symmetrically installed with cams 22 near both ends, the side wall of the cam 22 abuts against one end of a driving rod 23, the driving rod 23 is slidably connected to the inner wall of the bottom box 1, and the screening net 14 is provided with a support ear 24 rotatably connected to the driving rod 23 near the side of the driving rod 23. The third motor 20 is electrically connected to the on-site power supply, and the third motor 20 drives the connecting rod 21 to rotate, and the connecting rod 21 drives the cam 22 to rotate. The protruding part of the cam 22 drives the driving rod 23 to move downward, so that the driving rod 23 slides downward and drives the screening net 14 to move downward to compress the spring 15. When the non-protruding part of the cam 22 contacts the driving rod 23, the driving rod 23 is reset by the elastic force released by the spring 15 and the driving rod 23 is always ensured to abut against the outer side wall of the cam 22, and the screening net 14 reciprocating up and down performs a screening operation on the grinding material. The outer side walls of the driving rod 23 near the two ends are respectively sleeved with rings installed on the inner wall of the bottom box 1 for limiting operation, and the driving rod 23 is moved in a direction perpendicular to the ground through two sets of rings.
[0022] In this embodiment, the bottom box 1 is provided with a discharge port 25 at one end of the screening net 14, and a guide trough 26 is provided on the side wall of the bottom box 1 and at the lower end of the discharge port 25. The discharge directions of the guide troughs 26 are opposite one by one, which is convenient for the collection operation by the collection device.
[0023] In this embodiment, the sieve mesh 14 has sieve apertures of 13mm, 6mm, 3mm, 1mm and 0.5mm from top to bottom. The sieve mesh 14 sieves 30mm, 13mm, 6mm, 3mm and 1mm grinding materials in sequence, and can complete the sieve operation of the required particle size materials at one time.
[0024] In this embodiment, a threaded rod 27 is rotatably connected to one side of the support groove 2, a locking handle 28 is threadedly connected to the threaded rod 27, and an embedding block 29 capable of being inserted into the threaded rod 27 is provided on the sealing cover 3. The threaded rod 27 is rotated so that the threaded rod 27 is embedded in the groove of the embedding block 29, and then the locking handle 28 is manually rotated so that the locking handle 28 abuts against one side of the embedding block 29, thereby locking the sealing cover 3.
[0025] In this embodiment, a drawer 30 is inserted near the bottom end of the bottom box 1, and the drawer 30 abuts against the inner bottom side of the bottom box 1. The drawer 30 collects the abrasive materials less than 1 mm to avoid waste of experimental materials.
[0026] The working principle of the utility model is as follows: manually rotate the sealing cover 3 and cover the opening side of the grinding chamber of the support groove 2, then rotate the threaded rod 27 so that the threaded rod 27 is embedded in the groove of the embedding block 29, and manually rotate the locking handle 28 so that the locking handle 28 abuts against one side of the embedding block 29, thereby locking and sealing the sealing cover 3;
[0027] The experimental material is placed in the feed hopper 5, and then the first motor 7 is started to drive a rotating rod 17 to rotate. The rotating rod 17 drives another rotating rod 17 through the meshing spur gear 19. The two rotating rotating rods 17 drive the cutter head 18 to rotate, thereby pre-crushing the experimental material in the feed hopper 5. The obtained pre-crushed material enters the material net 11 of the support trough 2 through the feed trough 4;
[0028] The second motor 8 is started to drive the grinding cutter disc 9 to rotate and cooperate with the material net 11 to grind the pre-crushed material, so that the experimental material is ground into the required particle size, and then pre-screened through the material net 11, and the pre-screened ground material falls onto the uppermost screening net 14;
[0029] Start the third motor 20 to drive the connecting rod 21 to rotate, the connecting rod 21 drives the cam 22 to rotate, and the protruding part of the cam 22 drives the driving rod 23 to move downward, so that the driving rod 23 slides downward and drives the screening net 14 to move downward to compress the spring 15. When the non-protruding part of the cam 22 contacts the driving rod 23, the driving rod 23 is reset by the elastic force released by the spring 15 and always ensures that the driving rod 23 is in contact with the outer wall of the cam 22, and the screening net 14 reciprocates up and down to screen the grinding material, and screens 30mm, 13mm, 6mm, 3mm and 1mm grinding materials in turn through the screening net 14.
[0030] The utility model drives the rotating rod 17 to rotate by the first motor 7, and the rotating rod 17 drives the cutter disc 18 to rotate, and the rotating cutter disc 18 performs a pre-crushing operation on the material, and the pre-crushed material falls into the supporting groove 2, and the grinding cutter disc 9 is driven by the second motor 8 to grind the pre-crushed material, and the ground material passes through the material net 11 for initial screening and then falls on the uppermost screening net 14, and the vibration mechanism 16 is driven by the third motor 20 to vibrate the screening net 14, and the screening is performed one by one through the screening net 14, eliminating the process of grinding the experimental materials by special equipment and then performing secondary grinding and screening, thereby reducing the labor intensity of the experimenters and reducing the safety risks; the integrated device can directly grind and screen the experimental materials within 10 cm, meet the requirements of different particle sizes, and improve the experimental efficiency; the grinding and screening of different particle requirements of biomass fuel can be completed at one time, reducing the work intensity.
[0031] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the embodiments disclosed above are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.
Claims
1. A small laboratory device for a grinding and screening machine, characterized in that: The invention comprises a bottom box (1), wherein a support groove (2) communicating with the interior of the bottom box (1) is installed at the upper end of the bottom box (1), a sealing cover (3) for sealing a grinding chamber is hingedly connected to one side of the support groove (2), a feed groove (4) is installed on the side wall of the sealing cover (3), a feed hopper (5) is installed on the upper end of the feed groove (4), a first motor (7) for driving a pre-crushing mechanism (6) is installed on the side wall of the bucket body of the feed hopper (5), a second motor (8) is installed on the side of the support groove (2) away from the sealing cover (3), and a grinding cutter disc is installed at the output end of the second motor (8). (9), a bracket (10) is installed in the grinding chamber of the support groove (2), a material net (11) is installed on the bracket (10), a plurality of groups of support platforms (12) are installed on the inner wall of the bottom box (1), columns (13) are installed on the support platforms (12), a screening net (14) is sleeved on the columns (13) in the same group, a spring (15) coaxially arranged with the support platform (12) is connected between the screening net (14) and the support platform (12), and a vibration mechanism (16) for driving the screening net (14) to vibrate is installed on the inner wall of the bottom box (1).
2. A small laboratory device for a grinding and screening machine according to claim 1, characterized in that: The pre-crushing mechanism (6) comprises a rotating rod (17) symmetrically connected to the side wall of the lower end of the feed hopper (5), two rotating rods (17) are located on the side wall inside the feed hopper (5) and are equipped with knife discs (18) distributed in an interlaced manner, one end of the two rotating rods (17) rotates synchronously through meshing spur gears (19), and the end of one rotating rod (17) away from the spur gear (19) is connected to the output end of the first motor (7).
3. A small laboratory device for a grinding and screening machine according to claim 1, characterized in that: The vibration mechanism (16) comprises a third motor (20) installed on one side of the bottom box (1), the output end of the third motor (20) is located on the inner side of the bottom box (1) and is installed with a connecting rod (21), one end of the connecting rod (21) is rotatably connected to the inner wall of the bottom box (1), and cams (22) are symmetrically installed near both ends of the connecting rod (21), the side wall of the cam (22) abuts against one end of a driving rod (23), the driving rod (23) is slidably connected to the inner wall of the bottom box (1), and the screening net (14) is provided with a supporting ear (24) rotatably connected to the driving rod (23) on the side close to the driving rod (23).
4. A small laboratory device for a grinding and screening machine according to claim 1, characterized in that: The bottom box (1) is provided with a discharge port (25) at one end of the screening net (14), and a material guide trough (26) is provided on the side wall of the bottom box (1) at the lower end of the discharge port (25).
5. A small laboratory device for a grinding and screening machine according to claim 1, characterized in that: The sieve mesh (14) has sieve aperture sizes of 13 mm, 6 mm, 3 mm, 1 mm and 0.5 mm from top to bottom, and the sieve aperture size of the material mesh (11) is 30 mm.
6. A small laboratory device for a grinding and screening machine according to claim 1, characterized in that: A threaded rod (27) is rotatably connected to one side of the support groove (2), a locking handle (28) is threadedly connected to the threaded rod (27), and an embedding block (29) capable of being inserted into the threaded rod (27) is provided on the sealing cover (3).
7. A small laboratory device for a grinding and screening machine according to claim 1, characterized in that: A drawer (30) is inserted into the bottom box (1) near the bottom end, and the drawer (30) abuts against the inner bottom side of the bottom box (1).