A potassium nitrate screening device

Abstract

The utility model belongs to the technical field of potassium nitrate screening, and specifically is a potassium nitrate screening device, comprising a screening box; a fixed seat is fixedly connected to the top of the screening box; a motor is fixedly connected to the middle of the fixed seat; a cam is fixedly connected to the driving end of the motor; a reciprocating rod is provided in the middle of the screening box; a top plate is fixedly connected to the top of the reciprocating rod; a first sieve plate is fixedly connected to the outer side wall of the reciprocating rod close to the motor; the first sieve plate is tiltedly placed in the screening box; a second sieve plate is fixedly connected to the outer side wall of the reciprocating rod close to the first sieve plate; in this step, potassium nitrate particles are screened by setting the screening box, the fixed seat, the motor, the cam, the top plate, the reciprocating rod, the first sieve plate, the second sieve plate, the storage plate and the first reset spring, and the tilted first sieve plate and the second sieve plate make it difficult for potassium nitrate to accumulate during screening, reduce the situation of particles blocking the sieve holes, and improve the screening effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of potassium nitrate screening, in particular to a potassium nitrate screening device. Background Art

[0002] Potassium nitrate is an inorganic substance, also known as fire saltpeter or earth saltpeter. Potassium nitrate is a white powder, odorless and non-toxic. Potassium nitrate has high solubility, and its active ingredients, nitrogen and potassium, can be absorbed by crops without any chemical residue.

[0003] Potassium nitrate screening is the process of classifying potassium nitrate particles according to the size of the particles. Screening generally involves the use of a screen or a screening machine to separate potassium nitrate particles of different sizes through sieve holes of different sizes. Screening can be completed by a variety of equipment such as a vibrating screen, a rolling screen, and a centrifugal screen. In the existing potassium nitrate screening technology, the vibrating screen is generally placed flat, which may cause large potassium nitrate particles to block the sieve holes, thereby affecting the screening effect.

[0004] To this end, the utility model provides a potassium nitrate screening device. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a potassium nitrate screening device described in the utility model comprises a screening box; a fixing seat is fixedly connected to the top of the screening box; a motor is fixedly connected to the middle of the fixing seat; a cam is fixedly connected to the transmission end of the motor; a reciprocating rod is provided in the middle of the screening box; a top plate is fixedly connected to the top of the reciprocating rod; a first sieve plate is fixedly connected to the outer side wall of the reciprocating rod close to the motor; the first sieve plate is placed obliquely in the screening box; a second sieve plate is fixedly connected to the outer side wall of the reciprocating rod close to the first sieve plate; the second sieve plate is placed obliquely in the screening box and is The first sieve plate is in opposite directions; the inner side wall of the screening box away from the first sieve plate is fixedly connected to a storage plate; the outer side wall of the reciprocating rod close to the storage plate is sleeved with a first return spring; one end of the first return spring is fixedly connected to the bottom of the storage plate; the other end of the first return spring is fixedly connected to the bottom of the reciprocating rod; this step screens potassium nitrate particles through the arrangement of the screening box, the fixed seat, the motor, the cam, the top plate, the reciprocating rod, the first sieve plate, the second sieve plate, the storage plate and the first return spring, and the inclined first sieve plate and the second sieve plate make it difficult for potassium nitrate to accumulate during screening, reduce the situation of particles blocking the sieve holes, and improve the screening effect.

[0007] Preferably, the first screen plate is fixedly connected to a first fixing plate near the bottom of the inner wall of the screening box body; the second screen plate is provided with a first fixing plate near the bottom of the inner wall of the screening box body; a pair of the first fixing plates are arranged at the bottom of the first screen plate, and are symmetrically arranged; a pair of the first fixing plates are arranged at the bottom of the second screen plate, and are symmetrically arranged; a second return spring is fixedly connected to the bottom of the first fixing plate; multiple groups of the second return springs are arranged at the bottom of the first fixing plate, and are evenly distributed at the bottom of the first fixing plate; the other ends of the multiple groups of the second return springs are commonly fixedly connected to the second fixing plate; the second fixing plate is fixedly connected to the inner wall of the screening box body; in this step, the first fixing plate, the second return spring and the second fixing plate are arranged, and the second return spring lifts up the first fixing plate when compressed, and drives the first fixing plate downward when stretched, thereby improving the vibration effect of the first screen plate and the second screen plate, improving the screening effect of the first screen plate and the second screen plate, and reducing the situation where the edges of the first screen plate and the second screen plate vibrate weakly.

[0008] Preferably, the second fixed plate is fixedly connected to a guide plate away from the side wall of the screening box; the first fixed plate is slidably matched with the guide plate; this step plays a guiding role when the first fixed plate moves up and down through the setting of the guide plate, thereby reducing the possibility of the first fixed plate slipping.

[0009] Preferably, a first discharge port is formed on the side wall of the screening box near the end of the first screen plate; a first storage slot is fixedly connected to the side wall of the screening box near the end of the first screen plate; a second discharge port is formed on the side wall of the screening box near the end of the second screen plate; a second storage slot is fixedly connected to the side wall of the screening box near the end of the second screen plate; a third discharge port is formed on the side wall of the screening box near the storage plate; a third storage slot is fixedly connected to the side wall of the screening box near the end of the storage plate; in this step, the screened particles are collected through the arrangement of the first storage slot, the second storage slot and the third storage slot, thereby improving the convenience of packaging and collection.

[0010] Preferably, a flexible ring is fixedly connected to the outer wall of the screening box near the bottom; the outer wall of the flexible ring is sleeved with a box base; a first damping spring is fixedly connected to the bottom of the screening box; multiple groups of the first damping springs are arranged at the bottom of the screening box and are evenly distributed at the bottom of the screening box; the other ends of multiple groups of the first damping springs are fixedly connected together inside the box base; this step reduces the impact of the vibration of the screening box on other equipment and increases the service life of other components through the arrangement of the flexible ring, the box base and the first damping spring.

[0011] Preferably, a second damping spring is fixedly connected to the outer wall of the screening box close to the flexible ring; multiple groups of the second damping springs are arranged on the outer wall of the screening box and are evenly distributed on the outer wall of the screening box; the other ends of multiple groups of the second damping springs are commonly fixedly connected to the inner wall of the box base; this step reduces the damage of vibration to other components and improves the service life through the arrangement of the second damping spring.

[0012] Preferably, a reinforcing plate is fixedly connected to the bottom of the box base; a pair of the reinforcing plates are arranged at the bottom of the screening box and are symmetrically arranged; this step improves the stability of the equipment when it is placed and reduces the possibility of the equipment tipping over by arranging the reinforcing plates.

[0013] Preferably, a universal wheel is fixedly connected to the bottom of the reinforcing plate; a plurality of universal wheels are arranged at the bottom of the reinforcing plate and are evenly distributed at the bottom of the reinforcing plate; this step improves the convenience of moving the screening box through the arrangement of the universal wheel.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The potassium nitrate screening device described in the utility model screens potassium nitrate particles by setting a screening box, a fixed seat, a motor, a cam, a top plate, a reciprocating rod, a first sieve plate, a second sieve plate, a storage plate, and a first reset spring. The inclined first sieve plate and the second sieve plate prevent potassium nitrate from being easily accumulated during screening, thereby reducing the situation where particles block the sieve holes and improving the screening effect.

[0016] 2. The potassium nitrate screening device described in the utility model is provided with a first fixed plate, a second reset spring and a second fixed plate. The second reset spring lifts up the first fixed plate when compressed, and drives the first fixed plate downward when stretched, thereby improving the vibration effect of the first sieve plate and the second sieve plate, improving the screening effect of the first sieve plate and the second sieve plate, and reducing the weak vibration of the edges of the first sieve plate and the second sieve plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the screen plate and the reciprocating rod in the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the cooperation between the screen plate and the second return spring in the utility model;

[0021] Figure 4 It is a structural schematic diagram of the damping spring and the box base in the utility model;

[0022] In the figure: 1. screening box; 11. fixing seat; 12. motor; 13. cam; 14. top plate; 15. reciprocating rod; 16. first sieve plate; 17. second sieve plate; 18. storage plate; 19. first return spring; 2. first fixed plate; 21. second return spring; 22. second fixed plate; 3. guide plate; 4. first storage slot; 41. second storage slot; 42. third storage slot; 5. flexible ring; 51. box base; 52. first damping spring; 6. second damping spring; 7. reinforcement plate; 8. universal wheel. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figure 1 to Figure 2As shown, a potassium nitrate screening device described in an embodiment of the utility model comprises a screening box 1; a fixing seat 11 is fixedly connected to the top of the screening box 1; a motor 12 is fixedly connected to the middle of the fixing seat 11; a cam 13 is fixedly connected to the transmission end of the motor 12; a reciprocating rod 15 is provided in the middle of the screening box 1; a top plate 14 is fixedly connected to the top of the reciprocating rod 15; a first sieve plate 16 is fixedly connected to the outer side wall of the reciprocating rod 15 close to the motor 12; the first sieve plate 16 is placed obliquely in the screening box 1; the reciprocating rod 15 is fixedly connected to the outer side wall of the first sieve plate 16 17; the second sieve plate 17 is tilted in the screening box 1 and is opposite to the first sieve plate 16; the inner side wall of the screening box 1 away from the first sieve plate 16 is fixedly connected with a storage plate 18; the outer side wall of the reciprocating rod 15 close to the storage plate 18 is sleeved with a first return spring 19; one end of the first return spring 19 is fixedly connected to the bottom of the storage plate 18; the other end of the first return spring 19 is fixedly connected to the bottom of the reciprocating rod 15; during operation, potassium nitrate particles are put into the screening box 1 through the feeding port at the top of the screening box 1 for screening, and the motor 12 is turned on, and the motor 12 drives the cam 13 to rotate, When the cam 13 rotates, it drives the top plate 14 and the reciprocating rod 15 to move. When the reciprocating rod 15 moves upward, the first reset spring 19 is compressed. When the cam 13 points downward, the first reset spring 19 drives the reciprocating rod 15 and the top plate 14 to reset. Under the action of the cam 13 and the first reset spring 19, the reciprocating rod 15 moves up and down repeatedly. The reciprocating rod 15 drives the first sieve plate 16 and the second sieve plate 17 to vibrate. When potassium nitrate particles enter the screening box 1, the large particles of potassium nitrate are screened out by the first sieve plate 16, and the small particles fall onto the second sieve plate 17. After being screened by the second sieve plate 17, The particles that do not pass through the sieve holes of the second sieve plate 17 are screened out, and the remaining particles fall onto the surface of the first return spring 19. The first sieve plate 16 and the second sieve plate 17 are placed obliquely to prevent the particles from piling up and clogging the sieve holes. In this step, potassium nitrate particles are screened by setting the screening box 1, the fixing seat 11, the motor 12, the cam 13, the top plate 14, the reciprocating rod 15, the first sieve plate 16, the second sieve plate 17, the storage plate 18, and the first return spring 19. The obliquely placed first sieve plate 16 and the second sieve plate 17 prevent potassium nitrate from piling up during screening, reduce the clogging of the sieve holes by particles, and improve the screening effect.

[0025] like Figure 3As shown, the first sieve plate 16 is fixedly connected to the first fixing plate 2 near the bottom of the inner wall of the screening box 1; the second sieve plate 17 is provided with a first fixing plate 2 near the bottom of the inner wall of the screening box 1; a pair of the first fixing plates 2 are provided at the bottom of the first sieve plate 16, and are symmetrically arranged; a pair of the first fixing plates 2 are provided at the bottom of the second sieve plate 17, and are symmetrically arranged; a second return spring 21 is fixedly connected to the bottom of the first fixing plate 2; multiple groups of the second return springs 21 are provided at the bottom of the first fixing plate 2, and are evenly distributed at the bottom of the first fixing plate 2; the other ends of the multiple groups of the second return springs 21 are commonly fixedly connected to the second fixing plate 22; the second fixing plate 22 is fixedly connected to the inner wall of the screening box 1 ; During operation, when the first sieve plate 16 and the second sieve plate 17 move up and down, they drive the first fixed plate 2 to move up and down. When the first fixed plate 2 moves downward, the second return spring 21 is compressed. When the first fixed plate 2 moves upward, the second return spring 21 is stretched, thereby increasing the vibration effect of the first sieve plate 16 and the second sieve plate 17; in this step, through the arrangement of the first fixed plate 2, the second return spring 21 and the second fixed plate 22, the second return spring 21 is compressed to lift up the first fixed plate 2, and when stretched, drives the first fixed plate 2 downward, thereby improving the vibration effect of the first sieve plate 16 and the second sieve plate 17, improving the screening effect of the first sieve plate 16 and the second sieve plate 17, and reducing the situation where the edges of the first sieve plate 16 and the second sieve plate 17 have weak vibration.

[0026] like Figure 3 As shown, the second fixed plate 22 is fixedly connected to the side wall away from the screening box 1 with a guide plate 3; the first fixed plate 2 and the guide plate 3 are slidably matched; during operation, when the first fixed plate 2 moves up and down, the guide plate 3 plays a guiding role; in this step, through the setting of the guide plate 3, a guiding role is played when the first fixed plate 2 moves up and down, thereby reducing the slipping of the first fixed plate 2.

[0027] like Figure 1 As shown, a first discharge port is provided on the side wall of the screening box 1 near the end of the first sieve plate 16; a first storage slot 4 is fixedly connected to the side wall of the screening box 1 near the end of the first sieve plate 16; a second discharge port is provided on the side wall of the screening box 1 near the end of the second sieve plate 17; a second storage slot 41 is fixedly connected to the side wall of the screening box 1 near the end of the second sieve plate 17; a third discharge port is provided on the side wall of the screening box 1 near the storage plate 18; a third storage slot 42 is fixedly connected to the side wall of the screening box 1 near the end of the storage plate 18; during operation, the first storage slot 4, the second storage slot 41, and the third storage slot 42 are arranged to collect the screened particles; this step collects the screened particles through the arrangement of the first storage slot 4, the second storage slot 41, and the third storage slot 42, thereby improving the convenience of packaging and collection.

[0028] like Figure 4 As shown, a flexible ring 5 is fixedly connected to the outer wall of the screening box 1 near the bottom; a box base 51 is sleeved on the outer wall of the flexible ring 5; a first damping spring 52 is fixedly connected to the bottom of the screening box 1; multiple groups of the first damping springs 52 are arranged at the bottom of the screening box 1, and are evenly distributed at the bottom of the screening box 1; the other ends of multiple groups of the first damping springs 52 are fixedly connected to the inside of the box base 51; during operation, when the first sieve plate 16 and the second sieve plate 17 vibrate and screen, the screening box 1 is driven to vibrate, and the filtered vibration of the flexible ring 5 and the first damping spring 52 reduces the influence of the vibration on other equipment; this step reduces the influence of the vibration of the screening box 1 on other equipment and improves the service life of other components through the arrangement of the flexible ring 5, the box base 51 and the first damping spring 52.

[0029] like Figure 4 As shown, the outer wall of the screening box 1 close to the flexible ring 5 is fixedly connected with a second damping spring 6; multiple groups of the second damping springs 6 are arranged on the outer wall of the screening box 1 and are evenly distributed on the outer wall of the screening box 1; the other ends of multiple groups of the second damping springs 6 are commonly fixedly connected to the inner wall of the box base 51; during operation, when the screening box 1 vibrates, the second damping spring 6 will weaken the vibration and reduce the transmission of vibration to other components or equipment; this step reduces the damage to other components caused by vibration and improves the service life through the arrangement of the second damping spring 6.

[0030] like Figure 1 As shown, a reinforcing plate 7 is fixedly connected to the bottom of the box base 51; a pair of reinforcing plates 7 are arranged at the bottom of the screening box 1 and are symmetrically arranged; during operation, the reinforcing plates 7 increase the stability of the bottom of the box base 51 and reduce the shaking of the box base 51; this step improves the stability of the equipment when it is placed and reduces the possibility of the equipment tipping over by setting the reinforcing plates 7.

[0031] like Figure 1 As shown, a universal wheel 8 is fixedly connected to the bottom of the reinforcing plate 7; a plurality of universal wheels 8 are arranged at the bottom of the reinforcing plate 7 and are evenly distributed at the bottom of the reinforcing plate 7; during operation, when the screening box 1 needs to be moved, it is moved through the universal wheel 8; this step improves the convenience of moving the screening box 1 through the arrangement of the universal wheel 8.

[0032] During operation, potassium nitrate particles are put into the screening box 1 through the feeding port on the top of the screening box 1 for screening, and the motor 12 is turned on. The motor 12 drives the cam 13 to rotate. When the cam 13 rotates, it drives the top plate 14 and the reciprocating rod 15 to move. When the reciprocating rod 15 moves upward, the first reset spring 19 is compressed. When the cam 13 points downward, the first reset spring 19 drives the reciprocating rod 15 and the top plate 14 to reset. Under the action of the cam 13 and the first reset spring 19, the reciprocating rod 15 moves upward. The reciprocating rod 15 repeatedly moves down, and the reciprocating rod 15 drives the first screen plate 16 and the second screen plate 17 to vibrate. When potassium nitrate particles enter the screening box 1, the large particles of potassium nitrate are screened out by the screening of the first screen plate 16, and the small particles fall onto the second screen plate 17. After the screening of the second screen plate 17, the particles that do not pass through the sieve holes of the second screen plate 17 are screened out, and the remaining particles fall onto the surface of the first reset spring 19. The first screen plate 16 and the second screen plate 17 are placed obliquely so that the particles are not easy to accumulate and the sieve holes are not easy to be blocked. When the first sieve plate 16 and the second sieve plate 17 move up and down, the first fixed plate 2 is driven to move up and down. When the first fixed plate 2 moves downward, the second return spring 21 is compressed. When the first fixed plate 2 moves upward, the second return spring 21 is stretched, which increases the vibration effect of the first sieve plate 16 and the second sieve plate 17. When the first fixed plate 2 moves up and down, the guide plate 3 plays a guiding role. The first storage slot 4, the second storage slot 41 and the third storage slot 42 are set to collect the screened particles. When the first sieve plate 16 and the second sieve plate 17 vibrate and screen, they drive the screening box 1 to vibrate, and the filtering vibration of the flexible ring 5 and the first damping spring 52 reduces the influence of the vibration on other equipment. When the screening box 1 vibrates, the second damping spring 6 weakens the vibration to reduce the transmission of vibration to other parts or equipment. The reinforcing plate 7 increases the stability of the bottom of the box base 51 and reduces the shaking of the box base 51. When the screening box 1 needs to be moved, it is moved by the universal wheel 8.

[0033] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A potassium nitrate screening device, comprising a screening box (1); characterized in that: The top of the screening box (1) is fixedly connected to a fixing seat (11); the middle of the fixing seat (11) is fixedly connected to a motor (12); the driving end of the motor (12) is fixedly connected to a cam (13); a reciprocating rod (15) is provided in the middle of the screening box (1); the top of the reciprocating rod (15) is fixedly connected to a top plate (14); the outer side wall of the reciprocating rod (15) close to the motor (12) is fixedly connected to a first sieve plate (16); the first sieve plate (16) is placed obliquely in the screening box (1); the reciprocating rod (15) close to the first sieve plate (14) is fixedly connected to the top plate (14); the first sieve plate (16) is fixedly connected to the outer side wall of the reciprocating rod (15) close to the first sieve ... The outer wall of the screening box (16) is fixedly connected to a second sieve plate (17); the second sieve plate (17) is placed obliquely in the screening box (1) and in the opposite direction to the first sieve plate (16); the inner wall of the screening box (1) away from the first sieve plate (16) is fixedly connected to a storage plate (18); the outer wall of the reciprocating rod (15) close to the storage plate (18) is sleeved with a first return spring (19); one end of the first return spring (19) is fixedly connected to the bottom of the storage plate (18); the other end of the first return spring (19) is fixedly connected to the bottom end of the reciprocating rod (15).

2. A potassium nitrate screening device according to claim 1, characterized in that: The first sieve plate (16) is fixedly connected to a first fixing plate (2) at the bottom of the inner wall of the screening box (1); the second sieve plate (17) is provided with a first fixing plate (2) at the bottom of the inner wall of the screening box (1); a pair of the first fixing plates (2) are provided at the bottom of the first sieve plate (16) and are symmetrically arranged; a pair of the first fixing plates (2) are provided at the bottom of the second sieve plate (17) and are symmetrically arranged; a second return spring (21) is fixedly connected to the bottom of the first fixing plate (2); a plurality of groups of the second return springs (21) are provided at the bottom of the first fixing plate (2) and are evenly distributed at the bottom of the first fixing plate (2); the other ends of the plurality of groups of the second return springs (21) are fixedly connected to a second fixing plate (22); the second fixing plate (22) is fixedly connected to the inner wall of the screening box (1).

3. A potassium nitrate screening device according to claim 2, characterized in that: The second fixing plate (22) is fixedly connected to a guide plate (3) at a side wall away from the screening box (1); the first fixing plate (2) is slidably matched with the guide plate (3).

4. A potassium nitrate screening device according to claim 3, characterized in that: The side wall of the screening box (1) close to the end of the first screen plate (16) is provided with a first discharge port; the side wall of the screening box (1) close to the end of the first screen plate (16) is fixedly connected to a first storage tank (4); the side wall of the screening box (1) close to the end of the second screen plate (17) is provided with a second discharge port; the side wall of the screening box (1) close to the end of the second screen plate (17) is fixedly connected to a second storage tank (41); the side wall of the screening box (1) close to the end of the storage plate (18) is provided with a third discharge port; the side wall of the screening box (1) close to the end of the storage plate (18) is fixedly connected to a third storage tank (42).

5. A potassium nitrate screening device according to claim 4, characterized in that: A flexible ring (5) is fixedly connected to the outer wall of the screening box (1) near the bottom; a box base (51) is sleeved on the outer wall of the flexible ring (5); a first damping spring (52) is fixedly connected to the bottom of the screening box (1); multiple groups of the first damping springs (52) are arranged at the bottom of the screening box (1) and are evenly distributed at the bottom of the screening box (1); the other ends of the multiple groups of the first damping springs (52) are fixedly connected to the inside of the box base (51).

6. A potassium nitrate screening device according to claim 5, characterized in that: A second damping spring (6) is fixedly connected to the outer wall of the screening box (1) near the flexible ring (5); multiple groups of the second damping springs (6) are arranged on the outer wall of the screening box (1) and are evenly distributed on the outer wall of the screening box (1); the other ends of the multiple groups of the second damping springs (6) are fixedly connected to the inner wall of the box base (51).

7. A potassium nitrate screening device according to claim 6, characterized in that: A reinforcing plate (7) is fixedly connected to the bottom of the box base (51); a pair of reinforcing plates (7) are arranged at the bottom of the screening box (1) and are symmetrically arranged.

8. A potassium nitrate screening device according to claim 7, characterized in that: The bottom of the reinforcing plate (7) is fixedly connected with a universal wheel (8); a plurality of groups of the universal wheels (8) are arranged at the bottom of the reinforcing plate (7) and are evenly distributed at the bottom of the reinforcing plate (7).

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