Efficient chemical raw material screening and grinding device

Abstract

The invention belongs to the technical field of chemical raw material treatment, and particularly relates to an efficient chemical raw material screening and grinding device which comprises a grinding box, a screening plate, a grinding groove, a reciprocating assembly, a grinding assembly, a first pushing assembly and a second pushing assembly. The grinding groove is located on the upper side of the screening plate and slidably connected with the side wall of the grinding box, and the bottom wall of the grinding groove is arc-shaped and provided with a plurality of discharging holes; the reciprocating assembly is used for driving the grinding groove to reciprocate; the grinding assembly comprises a plurality of grinding rollers and a transmission part, the multiple grinding rollers are distributed at the opening of the grinding groove side by side at different intervals and rotationally connected with the side wall of the grinding groove, and the grinding rollers are all connected with the reciprocating assembly through the transmission part; the first pushing assembly is used for dispersing materials stacked on the upper side of the grinding roller; the second material pushing assembly is used for pushing the materials stacked on the two sides of the grinding groove into the grinding groove in a circulating and reciprocating mode. According to the device, a large amount of materials can be prevented from being accumulated around the grinding groove in the grinding process, so that the materials are ground more thoroughly.

Description

Technical Field

[0001] The invention belongs to the technical field of chemical raw material processing, and in particular relates to a high-efficiency chemical raw material screening and grinding device. Background Art

[0002] Chemical raw material screening and grinding is an important part of the chemical production process. Its main purpose is to: improve the uniformity of raw materials. Through the grinding process, chemical raw materials can be refined to make their particle size more uniform. This helps to distribute the raw materials more evenly in subsequent chemical reactions, thereby improving the efficiency and consistency of the reaction; remove impurities. The screening process can help remove impurities and large particles in the raw materials to ensure that the raw materials entering the next process are pure, which is crucial to ensuring the quality of the final product; increase the reaction rate. Small particles have a larger specific surface area, which means that more raw material surfaces can participate in chemical reactions. Therefore, ground raw materials can usually speed up the reaction rate and improve production efficiency.

[0003] At present, the devices used for chemical raw material screening and grinding are generally drum rotation grinding and grinding plate motion grinding, which provide convenience for the refinement of chemical raw materials and improve the efficiency of chemical raw material refinement. However, the drum rotation grinding and grinding plate motion grinding process are prone to cause chemical raw materials to accumulate on the drum or grinding plate side, especially in the grinding process using the grinding plate motion. Excessive accumulation of chemical raw materials may also cause some of the raw materials to overflow to the upper side of the grinding plate, which cannot be ground and is not ground thoroughly. For example, a Chinese patent with publication number CN111774164B provides a grinding device for processing chemical raw materials, including a grinding box, a spring is fixedly connected to the bottom of the grinding box symmetrically, a grinding bottom plate is fixedly connected above the spring, a screen is arranged in the middle of the grinding bottom plate, a motor is fixedly connected to the middle of the rear side of the grinding box, the motor shaft is rotatably connected to the rear wall of the grinding box, the motor shaft passes through the grinding box and is connected to a rotating disk, a driving rod is fixedly connected to the rotating disk, a positioning shaft is fixedly connected to the middle of the grinding box, a swing plate is rotatably connected to the outer side of the positioning shaft, a strip groove is provided above the swing plate, and the strip groove and the driving rod are slidably matched; a swing connecting rod is fixedly connected to the bottom of the swing plate, a limited position shaft is fixedly connected to the lower side of the inner side of the grinding box symmetrically, a side rotating rod is rotatably connected to the outer side of the limited position shaft, the upper end of the side rotating rod is hinged to the two ends of the upper parallel plate, the lower end of the side rotating rod is hinged to the two ends of the lower parallel plate, a translational grinding plate is fixedly connected to the lower side of the lower parallel plate, the translational grinding plate is matched with the screen, a transmission vertical plate is fixedly connected to the upper side of the upper parallel plate symmetrically, and the swing connecting rod is matched with the transmission vertical plate. Although the device can improve the grinding efficiency, during the grinding process of swinging the translational grinding plate left and right, larger particles of chemical raw materials will be pushed to both sides by the translational grinding plate during its movement and gradually accumulate. Although the device is also equipped with corresponding elastic grinding bodies for assistance, it can only play a role in squeezing part of the chemical raw materials. When too much chemical raw materials accumulate on both sides, the relative movement of the elastic grinding bodies and the translational grinding plates may also cause part of the accumulated chemical raw materials to overflow to the upper side of the translational grinding plate, making it difficult to grind thoroughly. Another example is a Chinese patent with publication number CN212651898U5, which discloses a chemical raw material grinding device for chemical industry, including a grinding box, a feed pipe connected to the top of the grinding box and a discharge pipe connected to the bottom, valves are installed on the feed pipe and the discharge pipe, a drive motor is fixedly connected to the outside of the grinding box, the output end of the drive motor extends into the grinding box and is coaxially fixedly connected to a grinding roller, a sieve plate is abutted against the bottom of the grinding roller, connecting plates are slidably connected to both ends of the sieve plate, slide grooves are provided on both sides of the inner wall of the grinding box, two connecting plates are slidably connected in the slide grooves at one end away from the sieve plate, a plurality of buffer springs are fixedly connected between the bottom of the two connecting plates and the bottom of the two slide grooves, a collecting plate is fitted in the gap at the bottom of the sieve plate, the peripheral side of the collecting plate is fixedly connected to the inner side of the grinding box and the bottom is connected to the discharge pipe.Although the device uses the sieve plate to achieve preliminary screening, due to the close contact between the grinding roller and the sieve plate, when the grinding roller rotates, it can only carry and grind solid particles within a certain size range, which easily causes larger particles of chemical raw materials to accumulate on one side of the grinding roller, making it difficult to grind them thoroughly. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the purpose of the present invention is to provide a high-efficiency chemical raw material screening and grinding device, which can fully push the materials on the side of the grinding trough to the inside and bottom of the grinding trough repeatedly during the grinding process, thereby avoiding large amounts of material accumulation around the grinding trough, making the material grinding more thorough.

[0005] The technical solution of the present invention is:

[0006] A high-efficiency chemical raw material screening and grinding device comprises a grinding box and a grinding mechanism arranged in the grinding box, a screening plate is arranged at the bottom of the grinding mechanism, and the grinding mechanism comprises:

[0007] A grinding groove is located on the upper side of the sieve plate and a grinding gap is provided between the two. The grinding groove is slidably connected to the side wall of the grinding box. The bottom wall of the grinding groove is arc-shaped, and a plurality of drop holes are evenly opened on the bottom wall of the grinding groove.

[0008] A reciprocating assembly is arranged on the grinding box, and an output end of the reciprocating assembly is connected to the grinding groove, so as to drive the grinding groove to move reciprocally;

[0009] A grinding assembly, comprising a plurality of grinding rollers and a transmission component, wherein the plurality of grinding rollers are arranged in parallel at the opening of the grinding groove and are rotatably connected to the side wall of the grinding groove, the spacing between two adjacent grinding rollers is different, and the plurality of grinding rollers are connected to the output end of the reciprocating assembly through the transmission component, and the transmission assembly is used to realize rotation during the reciprocating movement of the grinding box;

[0010] A first material pushing assembly is arranged at the opening of the grinding groove and is used to disperse the material accumulated on the upper side of the grinding roller;

[0011] Two second material pushing assemblies are respectively arranged on both sides of the grinding trough, and the second material pushing assemblies are used to push the materials accumulated on both sides of the grinding trough into the grinding trough in a cyclical manner.

[0012] Preferably, the first pusher assembly includes a plurality of pusher rollers, the plurality of pusher rollers are evenly distributed above the opening of the grinding groove, and the lower side of the grinding roller is flush with the opening of the grinding groove, and the grinding roller shaft is fixedly connected to the grinding box.

[0013] Preferably, the second pusher assembly comprises:

[0014] A push plate, which is perpendicular to the moving direction of the grinding groove and is higher than the arc-shaped bottom wall of the grinding groove;

[0015] An elastic reset portion, disposed between the push plate and the grinding box, for realizing movement and reset of the push plate;

[0016] A guide panel is obliquely arranged on a side of the grinding trough opposite to the push plate, and the push plate slides from bottom to top in close contact with the guide panel during the movement of the grinding trough, so as to push the material accumulated between the grinding trough and the push plate into the grinding trough;

[0017] The anti-blocking component is arranged at the lower side of the push plate and is used to prevent the material from reaching the rear of the push plate during the movement of the grinding groove.

[0018] Preferably, the elastic reset portion comprises:

[0019] A limit plate, fixedly connected to the grinding box, the limit plate is located above the push plate;

[0020] A plurality of movable rods are inserted through the limit plate, the movable rods are slidably connected to the limit plate, and the lower ends of the movable rods are fixedly connected to the push plate;

[0021] A plurality of first springs correspond to the plurality of movable rods one by one, the first springs are sleeved on the corresponding movable rods, and the first springs are located between the limiting plate and the pushing plate.

[0022] Preferably, the anti-blocking component includes:

[0023] An anti-blocking block, the lower side of which is in contact with the screening plate, the upper side of which is in contact with the bottom wall of the pushing plate, and the upper side wall of the anti-blocking block is inclined;

[0024] A plurality of guide rods are evenly distributed on the side of the anti-stop block away from the grinding groove, one end of the guide rod is slidably connected to the anti-stop block, and the other end passes through the side wall of the grinding box, and each of the guide rods is provided with a second spring, one end of the second spring abuts against the anti-stop block, and the other end abuts against the side wall of the grinding box.

[0025] Preferably, an ejection plate is provided on the side of the push plate facing the grinding groove, a third spring is provided between the ejection plate and the push plate, and the bottom side of the ejection plate is flush with the bottom side of the push plate.

[0026] Preferably, an extension plate is fixedly connected to the upper side of the anti-stop block, and the extension plate is placed on the side of the push plate away from the grinding groove.

[0027] Preferably, a vibrator is fixed on the side wall of the anti-stop block facing away from the grinding groove.

[0028] Preferably, a feed channel is provided above the grinding trough, the outlet of the feed channel is placed between two push plates, and a plurality of impellers are arranged in parallel at the outlet end of the feed channel, and the impellers are connected to the output end of the reciprocating component through an intermittent transmission component to realize intermittent rotation, so as to evenly diffuse the material entering the feed channel in the grinding trough.

[0029] Preferably, the portion of the screen plate located between the two push plates is arranged to be an arc surface facing the same direction as the arc of the bottom of the grinding groove, and the screen plate is slidingly connected to the grinding box, and an elastic member is provided between the lower side of the screen plate and the bottom wall of the grinding box.

[0030] Compared with the prior art, the high-efficiency chemical raw material screening and grinding device of the present invention has the following beneficial effects:

[0031] When the device is in use, the material enters from the grinding box and falls respectively between the grinding rollers in the grinding trough and in the grinding gap between the grinding trough and the screening plate. The reciprocating assembly is used to realize the left and right reciprocating motion of the grinding trough, so that the material in the grinding gap can be ground first. At the same time, the reciprocating assembly cooperates with the transmission component to make the grinding roller reciprocate, so that the chemical principle on the grinding roller can be ground under the reciprocating rotation of the grinding roller, and the cooperation of the first pushing assembly makes the material on the upper side of the grinding roller move to between two different grinding rollers under the left and right motion of the grinding trough, so that the different spacings between two adjacent grinding rollers are utilized to realize grinding. In order to grind materials of different specifications, the materials ground by the grinding roller fall into the grinding trough and enter the grinding gap between the grinding trough and the screening plate through the drop holes on the bottom wall of the grinding trough. The qualified materials are then screened and fall down, and the materials remaining in the grinding gap will be further ground in the grinding gap. At the same time, under the left and right movement of the grinding trough, the second pushing components on both sides will push the materials on both sides of the grinding gap back and forth into the grinding trough for re-grinding by the grinding roller, thereby effectively avoiding the accumulation of materials around the grinding roller and the grinding gap under the above-mentioned grinding method, so that the materials can be fully and thoroughly ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 Schematic diagram of the overall structure of the first viewing angle in an embodiment of the present invention;

[0033] Figure 2 is a schematic diagram of the overall structure of the second viewing angle in an embodiment of the present invention;

[0034] Figure 3 A longitudinal cross-sectional view of the overall structure in an embodiment of the present invention;

[0035] Figure 4It is a structural schematic diagram of the elastic reset portion in an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the internal structure of the grinding box in an embodiment of the present invention;

[0037] Figure 6 Schematic diagram of the connection structure between the transmission assembly and the grinding roller in an embodiment of the present invention;

[0038] Figure 7 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0039] Figure 8 for Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0040] Description of reference numerals:

[0041] 1. Grinding box; 2. Screening plate; 3. Grinding groove; 4. Reciprocating assembly; 41. Motor; 42. Eccentric wheel; 43. Reciprocating frame; 44. Connecting plate; 5. Grinding assembly; 51. Grinding roller; 52. Transmission component; 521. First rack; 522. First gear; 6. First push assembly; 61. Push roller; 7. Second push assembly; 71. Push plate; 72. Elastic reset part; 721. Limit plate; 722. Movable rod; 723. First spring; 73. Guide panel; 74. Anti-blocking component; 741. Anti-blocking block; 742. Guide rod; 743. Second spring; 8. Ejection plate; 9. Third spring; 10. Extension plate; 11. Vibrator; 12. Feed channel; 13. Impeller; 14. Intermittent transmission assembly; 141. Second rack; 142. Second gear; 15. Elastic member; 16. Strip groove. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0044] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] See also Figures 1 to 8As shown, in order to thoroughly grind the chemical raw materials and avoid the existence of accumulation during the screening and grinding process of chemical raw materials, this embodiment provides a high-efficiency chemical raw material screening and grinding device, including a grinding box 1 and a grinding mechanism arranged in the grinding box 1, a screening plate 2 is arranged at the bottom of the grinding mechanism, and the top of the grinding box 1 opposite to the screening plate 2 is open for inputting materials. The grinding mechanism includes a grinding trough 3, a reciprocating assembly 4, a grinding assembly 5, a first material pushing assembly 6 and a second material pushing assembly 7. The grinding groove 3 is located on the upper side of the screening plate 2 and a grinding gap is provided therebetween. The grinding groove 3 is slidably connected to the side wall of the grinding box 1. The bottom wall of the grinding groove 3 is arc-shaped, and a plurality of blanking holes are evenly provided on the bottom wall of the grinding groove 3. The reciprocating assembly 4 is provided on the grinding box 1, and the output end of the reciprocating assembly 4 is connected to the grinding groove 3 for driving the grinding groove 3 to reciprocate. The grinding assembly 5 includes a plurality of grinding rollers 51 and a transmission component 52. The plurality of grinding rollers 51 are arranged in parallel at the opening of the grinding groove 3 and are rotatably connected to the side wall of the grinding groove 3, and the spacing between two adjacent grinding rollers 51 is different. Preferably, the maximum spacing between the two grinding rollers 51 is 1.5 to 2 times the minimum spacing. A plurality of grinding rollers 51 are connected to the output end of the reciprocating assembly 4 through a transmission component 52, and the transmission assembly is used to realize rotation during the reciprocating movement of the grinding box 1; the first pushing assembly 6 is arranged at the opening of the grinding groove 3, and is used to disperse the materials accumulated on the upper side of the grinding roller 51; the two second pushing assemblies 7 are arranged on both sides of the reciprocating motion of the grinding groove 3, and the second pushing assemblies 7 are used to push the materials accumulated on both sides of the grinding groove 3 into the grinding groove 3 in a cyclic and reciprocating manner.

[0046] Specifically, when the chemical raw materials are screened and ground, the chemical raw materials enter the grinding box 1 and fall respectively between the grinding rollers 51 in the grinding groove 3 and in the grinding gap between the grinding groove 3 and the screening plate 2. The reciprocating assembly 4 is used to realize the left and right reciprocating motion of the grinding groove 3, so that the chemical raw materials in the grinding gap can be ground first. At the same time, the reciprocating assembly 4 cooperates with the transmission component 52 to make the grinding roller 51 reciprocate, so that the chemical raw materials on the grinding roller 51 can be ground under the reciprocating motion of the grinding roller 51, and the cooperation of the first pushing assembly 6 makes the chemical raw materials on the upper side of the grinding roller 51 move to between two different grinding rollers 51 under the left and right motion of the grinding groove 3, so that the distance between the two adjacent grinding rollers 51 is not small. The same function is convenient for grinding chemical raw materials of different specifications. The chemical raw materials ground by the grinding roller 51 fall into the grinding trough 3 and enter the grinding gap between the grinding trough 3 and the screening plate 2 through the drop holes on the bottom wall of the grinding trough 3. The qualified materials are then screened and fall down, and the chemical raw materials remaining in the grinding gap will be further ground in the grinding gap. At the same time, under the left and right movement of the grinding trough 3, the second pushing components 7 on both sides will push the chemical raw materials on both sides of the grinding gap back and forth into the grinding trough 3 for re-grinding by the grinding roller 51, thereby effectively avoiding the accumulation of chemical raw materials around the grinding roller 51 and the grinding gap under the above-mentioned grinding method, so that the chemical raw materials can be fully and thoroughly ground.

[0047] See also Figure 2 and Figure 3 As shown, further, in order to ensure that the chemical raw materials are fully and thoroughly ground and avoid the occurrence of accumulation. The reciprocating assembly 4 includes a motor 41, an eccentric wheel 42, a reciprocating frame 43 and two connecting plates 44. The motor 41 is fixed to the outer wall of the screening box through a support plate, and the eccentric wheel 42 is fixed on the output shaft of the motor 41. The eccentric wheel 42 is placed in the reciprocating frame 43, and the circumferential side wall of the eccentric wheel 42 is in contact with the two side walls opposite to the reciprocating frame 43. Two connecting plates 44 are arranged on both sides of the grinding box 1. One end of the connecting plate 44 is fixedly connected to the reciprocating frame 43, and the other end is connected to the grinding tank 3 through a transmission assembly. When in use, the motor 41 drives the eccentric wheel 42 to rotate, and the rotation of the eccentric wheel 42 drives the reciprocating frame 43 to reciprocate along a straight line, thereby realizing the left and right reciprocating motion of the grinding tank 3 with the cooperation of the connecting plate 44.

[0048] See also Figure 2 , Figure 5 and Figure 6As shown, further, in order to ensure that the chemical raw materials are fully and thoroughly ground and avoid the occurrence of accumulation, the transmission component 52 includes two first racks 521 and a plurality of first gears 522 meshing with each of the first racks 521. The two first racks 521 and the two connecting rods are arranged on both sides of the grinding box 1 in a one-to-one correspondence, and the teeth of the two first racks 521 face each other up and down. A transmission shaft is fixed at both ends of each grinding roller 51, and the transmission shaft passes through the side wall of the grinding groove 3 and the strip groove 16 arranged on the side wall of the grinding box 1 in sequence. The transmission shafts at both ends of each grinding roller 51 are rotatably connected to the corresponding connecting plate 44, and the plurality of first gears 522 meshing with the two first racks 521 are respectively fixed on the corresponding transmission shafts at intervals. When in use, the connecting plate 44 drives the grinding groove 3 to reciprocate left and right through the transmission shaft, and the first gear 522 on the transmission shaft engages with the corresponding first rack 521 to realize the rotation of the grinding roller 51. Moreover, since the first gears 522 of the two adjacent grinding rollers 51 are engaged with different first racks 521 and the teeth of the two first racks 521 are opposite to each other, the two adjacent grinding rollers 51 rotate relative to each other, thereby facilitating the grinding of the chemical raw materials between the two grinding rollers 51.

[0049] See also Figure 3 As shown, further, in order to ensure that the chemical raw materials are fully and thoroughly ground and avoid the occurrence of accumulation. The first pusher assembly 6 includes a plurality of pusher rollers 61, which are evenly distributed above the opening of the grinding groove 3, and the lower side of the grinding roller is flush with the opening of the grinding groove 3, and the grinding roller 51 is fixedly connected to the grinding box 1. When in use, the grinding groove 3 moves with the grinding roller 51, and the pusher roller 61 is in a stationary state. At this time, under the movement of the grinding groove 3, the chemical raw materials will be pushed between the other two adjacent grinding rollers 51 through the blocking effect of the pusher roller 61, so that the chemical raw materials can enter between the two adjacent grinding rollers 51 with different spacings, so that chemical raw materials of different specifications can be ground. At the same time, due to the action of the pusher roller 61, part of the chemical raw materials between the pusher roller 61 and the grinding roller 51 can be squeezed, which is convenient for the crushing of the chemical raw materials, so that the grinding effect is better and the grinding of the chemical raw materials is more thorough.

[0050] See also Figure 3 , Figure 4 and Figure 8As shown, further, in order to ensure that the chemical raw materials are fully and thoroughly ground and avoid the occurrence of accumulation. The second pusher assembly 7 includes a pusher plate 71, an elastic reset portion 72, a guide panel 73 and a blocking component 74. The pusher plate 71 is perpendicular to the moving direction of the grinding trough 3, and the pusher plate 71 is higher than the arc-shaped bottom wall of the grinding trough 3; the elastic reset portion 72 is arranged between the pusher plate 71 and the grinding box 1, and is used to realize the movement and reset of the pusher plate 71; the guide panel 73 is tilted on the side of the grinding trough 3 opposite to the pusher plate 71, and the pusher plate 71 slides from bottom to top in contact with the guide panel 73 during the movement of the grinding trough 3, and is used to push the materials accumulated between the grinding trough 3 and the pusher plate 71 into the grinding trough 3; the blocking component 74 is arranged on the lower side of the pusher plate 71, and is used to prevent the materials from reaching the rear of the pusher plate 71 during the movement of the grinding trough 3. Among them, the elastic reset part 72 includes a limit plate 721, a plurality of movable rods 722 and a plurality of first springs 723. The limit plate 721 is fixedly connected in the grinding box 1, and the limit plate 721 is located above the push plate 71; a plurality of movable rods 722 are all inserted through the limit plate 721, the movable rods 722 are slidably connected to the limit plate 721, and the lower end of the movable rod 722 is fixedly connected to the push plate 71, and each movable rod 722 is located between the limit plate 721 and the push plate 71 and is equipped with a first spring 723. During use, when the grinding groove 3 moves to one side, when the chemical raw materials between the push plate 71 and the grinding groove 3 on this side reach the position of the push plate 71, under the continuous movement of the grinding groove 3, the push plate 71 pushes the excess chemical raw materials onto the inclined panel. At the same time, the lower end of the push plate 71 contacts the inclined panel, and under the movement of the grinding groove 3, through the cooperation of the first spring 723 and the movable rod 722, the push plate 71 slides from the bottom of the inclined panel to the upper side of the inclined panel, so that the chemical raw materials on the inclined panel enter the grinding groove 3 to be ground by the grinding roller 51, and the chemical raw materials below the position of the push plate 71 will be kept in the grinding gap under the action of the blocking component 74 to be ground and crushed, so that under the cooperation of the above-mentioned structure, the excess chemical raw materials on both sides of the grinding gap will be repeatedly pushed into the grinding groove 3, and the material will never accumulate, so that the chemical raw materials can be ground more fully and thoroughly.

[0051] See also Figure 8As shown, further, in order to ensure that the chemical raw materials are fully and thoroughly ground and avoid the occurrence of accumulation. The anti-blocking component 74 includes an anti-blocking block 741 and a plurality of guide rods 742. The lower side of the anti-blocking block 741 is in contact with the screening plate 2, and the upper side is in contact with the bottom wall of the push plate 71, and the upper side wall of the anti-blocking block 741 is inclined; the plurality of guide rods 742 are evenly distributed on the side of the anti-blocking block 741 away from the grinding groove 3, and one end of the guide rod 742 is slidably connected to the anti-blocking block 741, so that the anti-blocking block 741 has the movement condition of sliding up and down. The other end of the guide rod 742 passes through the side wall of the grinding box 1, and each guide rod 742 is equipped with a second spring 743, one end of the second spring 743 is in contact with the anti-blocking block 741, and the other end is in contact with the side wall of the grinding box 1. When in use, the grinding trough 3 moves toward the side of the push plate 71, and the excess chemical raw materials above the anti-blocking block 741 are pushed from the inclined panel by the push plate 71 into the grinding trough 3 for grinding, while the chemical raw materials below the push plate 71 are squeezed between the anti-blocking block 741 and the grinding trough 3 under the movement of the grinding trough 3, and under the action of the second spring 743, the greater the storage force of the second spring 743 under the continuous movement of the grinding trough 3, the greater the squeezing force of the chemical raw materials between the anti-blocking block 741 and the grinding trough 3, and the chemical raw materials are better crushed. At the same time, in order to ensure that the chemical raw materials can be stably located between the anti-blocking block 741 and the grinding trough 3 during the squeezing process, an extension plate 10 is fixedly connected to the upper side of the anti-blocking block 741, and the extension plate 10 is placed on the side of the push plate 71 away from the grinding trough 3. After the grinding trough 3 returns, under the reset action of the second spring 743, the crushed chemical raw materials will be pushed back to the grinding gap to facilitate grinding, so that the grinding trough 3 can be fully and thoroughly ground in the next movement, and pass through the screening plate 2. In order to make the chemical raw materials between the anti-blocking block 741 and the grinding groove 3 more fully crushed, a vibrator 11 is fixed on the side wall of the anti-blocking block 741 away from the grinding groove 3. Under the support of the vibrator 11, the anti-blocking block 741 generates a sufficiently large vibration force, so that the chemical raw materials are squeezed and vibrated, and the grinding and crushing effect is better. At the same time, the vibration of the anti-blocking block 741 will link the vibration of the grinding groove 3, so that the chemical raw materials on the grinding rollers 51 on the grinding groove 3 can better enter the gap between the two grinding rollers 51 and be fully ground. Under the action of vibration, the chemical raw materials that have been ground can more fully pass through the drop holes of the grinding groove 3 and the mesh on the screening plate 2, avoiding the accumulation of chemical raw materials.

[0052] See also Figure 4 and Figure 8As shown, further, in order to ensure that the chemical raw materials are fully and thoroughly ground and avoid the occurrence of accumulation. A ejection plate 8 is provided on the side of the push plate 71 facing the grinding groove 3, and a third spring 9 is provided between the ejection plate 8 and the push plate 71, and the bottom side of the ejection plate 8 is flush with the bottom side of the push plate 71. When in use, when the grinding groove 3 moves to the point where the push plate 71 contacts the inclined panel, the ejection plate 8 and the inclined panel are also in a friction contact state, and under the continued movement of the grinding groove 3, the ejection plate 8 will produce a certain amount of compression on the third spring 9 under the action of friction, and when the ejection plate 8 reaches the upper side of the inclined panel and passes over the upper side of the inclined panel, the ejection plate 8 generates elastic force under the reset action of the third spring 9, and the chemical raw materials on the ejection plate 8 are more evenly ejected into the grinding groove 3, which can prevent the push amount from being too large and accumulating at the edge of the grinding groove 3.

[0053] See also Figure 3 As shown, further, in order to ensure that the chemical raw materials are fully and thoroughly ground and avoid the occurrence of accumulation, a plurality of gravity balls 17 are placed in the grinding groove 3 and below the grinding roller 51. When in use, when the grinding groove 3 moves back and forth, the chemical raw materials ground by the grinding roller 51 in the grinding groove 3 will collide with the gravity balls 17, so that the chemical raw materials are further ground and crushed, and are convenient to flow out from the drop hole at the bottom of the grinding groove 3, and the further crushed chemical raw materials can reduce the residence of the chemical raw materials in the grinding gap, avoiding the accumulation of chemical raw materials in the grinding gap.

[0054] See also Figures 2 to 5 As shown, further, in order to ensure that the chemical raw materials are fully and thoroughly ground and avoid the occurrence of accumulation. A feed channel 12 is arranged above the grinding tank 3, and the outlet of the feed channel 12 is placed between two push plates 71, and a plurality of impellers 13 are arranged in parallel at the outlet end of the feed channel 12. The impellers 13 are connected to the output end of the reciprocating component 4 through an intermittent transmission component 14 to realize intermittent rotation, and are used to evenly spread the materials entering the feed channel 12 in the grinding tank 3. The intermittent transmission component 14 includes two second racks 141 and a plurality of second gears 142. The two second racks 141 and the two first racks 521 are arranged on both sides of the grinding box 1 in a one-to-one correspondence. See Figure 7As shown, the teeth on the second rack 141 are divided into multiple groups, and the two connected groups of teeth are provided with a spacing (discontinuous), and the two ends of the impeller 13 pass through the grinding box 1 through the rotating shaft and are respectively equipped with second gears 142, and the second gears 142 at both ends of each impeller 13 are meshed with the corresponding second rack 141, and the second rack 141 on each side is fixed to the connecting plate 44. When in use, a certain amount of chemical raw materials is poured into the feed channel 12. The reciprocating motion of the connecting plate 44 drives the second rack 141 to reciprocate. The second rack 141 is intermittently meshed with the second gear 142 through a discontinuous tooth group. In the process of the second rack 141 meshing with the second gear 142, the second gear 142 drives the impeller 13 to rotate under the action of the rotating shaft. The blades of the impeller 13 can add an appropriate amount of chemical raw materials in the feed channel 12 to the grinding groove 3 or the grinding gap, so that the chemical raw materials can enter the grinding groove 3 and the grinding gap evenly and appropriately under the reciprocating motion of the grinding groove 3, which can effectively control the grinding amount per unit time and avoid accumulation of excessive addition of chemical raw materials.

[0055] See also Figures 3 to 5 As shown, further, in order to ensure that the chemical raw materials are fully and thoroughly ground and avoid the occurrence of accumulation, the portion of the screen plate 2 located between the two pusher plates 71 is set to be an arc surface with the same arc direction as the bottom arc of the grinding groove 3, and there is a certain rotation gap between the two ends of the screen plate 2 and the grinding box 1, and an elastic member 15 is provided between the lower side of the screen plate 2 and the bottom wall of the grinding box 1. When in use, in a static state, the push plate 71 and the upper side of the anti-stop block 741 are in abutment with each other, and the anti-stop block 741 will be pushed downward by a certain distance, so that a larger grinding gap is generated between the grinding groove 3 and the screening plate 2, allowing chemical raw materials of different specifications to enter. When the grinding groove 3 moves so that the push plate 71 is placed on the inclined panel, the pressure on the anti-stop block 741 is released, and the end of the screening plate 2 separated from the anti-stop block 741 moves upward at an angle, so that the arc surface of the grinding groove 3 and the arc surface of the screening plate 2 become smaller under the action of the elastic member 15, and the grinding effect on the chemical raw materials in the grinding gap is better. The inclined surface structure on the upper side of the anti-stop block 741 can ensure that the push plate 71 is smoothly reset to the upper side of the anti-stop block 741 after the grinding groove 3 returns, which is convenient for use.

[0056] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An efficient chemical raw material screening and grinding device, comprising a grinding box (1) and a grinding mechanism and a screening plate (2) arranged inside the grinding box, characterized in that: The grinding mechanism comprises: A grinding groove (3) is located on the upper side of the sieve plate (2) and a grinding gap is provided between the two. The grinding groove (3) is slidably connected to the side wall of the grinding box (1). The bottom wall of the grinding groove (3) is arc-shaped, and a plurality of drop holes are evenly opened on the bottom wall of the grinding groove (3); A reciprocating assembly (4) is arranged on the grinding box (1), and an output end of the reciprocating assembly (4) is connected to the grinding groove (3) for driving the grinding groove (3) to move reciprocally; A grinding assembly (5) comprising a plurality of grinding rollers (51) and a transmission component (52), wherein the plurality of grinding rollers (51) are arranged in parallel at the opening of the grinding groove (3) and are rotatably connected to the side wall of the grinding groove (3), the spacing between two adjacent grinding rollers (51) is different, and the plurality of grinding rollers (51) are all connected to the output end of the reciprocating assembly (4) via the transmission component (52), and the transmission assembly is used to realize rotation during the reciprocating movement of the grinding box (1); A first material pushing assembly (6) is arranged at the opening of the grinding groove (3) and is used to disperse the material accumulated on the upper side of the grinding roller (51); Two second material pushing assemblies (7) are respectively arranged on both sides of the grinding trough (3) and are used to push the materials on both sides of the grinding trough (3) into the grinding trough (3) in a cyclical manner.

2. The high-efficiency chemical raw material screening and grinding device according to claim 1 is characterized in that: The first pusher assembly (6) comprises a plurality of pusher rollers (61), the plurality of pusher rollers (61) are evenly distributed above the opening of the grinding groove (3), and the lower side of the grinding rollers is flush with the opening of the grinding groove (3), and the grinding roller (51) shaft is fixedly connected to the grinding box (1).

3. The high-efficiency chemical raw material screening and grinding device according to claim 1 is characterized in that: The second pusher assembly (7) comprises: A push plate (71) is perpendicular to the moving direction of the grinding groove (3), and the push plate (71) is higher than the arc-shaped bottom wall of the grinding groove (3); An elastic reset portion (72) is arranged between the push plate (71) and the grinding box (1) and is used to realize movement and reset of the push plate (71); A guide panel (73) is obliquely arranged on a side of the grinding trough (3) opposite to the push plate (71); the push plate (71) slides from bottom to top in contact with the guide panel (73) during the movement of the grinding trough (3), so as to push the material accumulated between the grinding trough (3) and the push plate (71) into the grinding trough (3); The blocking component (74) is arranged on the lower side of the push plate (71) and is used to block the material from reaching the rear of the push plate (71) during the movement of the grinding groove (3).

4. The high-efficiency chemical raw material screening and grinding device according to claim 3 is characterized in that: The elastic reset portion (72) comprises: A limit plate (721) is fixedly connected to the grinding box (1), and the limit plate (721) is located above the push plate (71); A plurality of movable rods (722) are inserted through the limiting plate (721), the movable rods (722) are slidably connected to the limiting plate (721), and the lower ends of the movable rods (722) are fixedly connected to the pushing plate (71); A plurality of first springs (723) correspond one to one with a plurality of movable rods (722); the first springs (723) are sleeved on the corresponding movable rods (722), and the first springs (723) are located between the limiting plate (721) and the pushing plate (71).

5. The high-efficiency chemical raw material screening and grinding device according to claim 3 is characterized in that: The anti-blocking component (74) comprises: The anti-blocking block (741) has its lower side in contact with the screening plate (2) and its upper side in contact with the bottom wall of the pushing plate (71), and the upper side wall of the anti-blocking block (741) is inclined; A plurality of guide rods (742) are evenly distributed on a side of the anti-stop block (741) away from the grinding groove (3); one end of the guide rod (742) is slidably connected to the anti-stop block (741), and the other end passes through the side wall of the grinding box (1); and each guide rod (742) is provided with a second spring (743); one end of the second spring (743) abuts against the anti-stop block (741), and the other end abuts against the side wall of the grinding box (1).

6. The high-efficiency chemical raw material screening and grinding device according to claim 3 is characterized in that: An ejection plate (8) is provided on the side of the push plate (71) facing the grinding groove (3), a third spring (9) is provided between the ejection plate (8) and the push plate (71), and the bottom side of the ejection plate (8) is flush with the bottom side of the push plate (71).

7. The high-efficiency chemical raw material screening and grinding device according to claim 5, characterized in that: An extension plate (10) is fixedly connected to the upper side of the anti-block block (741), and the extension plate (10) is placed on a side of the push plate (71) that is away from the grinding groove (3).

8. The high-efficiency chemical raw material screening and grinding device according to claim 5, characterized in that: A vibrator (11) is fixed on the side wall of the anti-stop block (741) facing away from the grinding groove (3).

9. The high-efficiency chemical raw material screening and grinding device according to claim 3, characterized in that: A feed channel (12) is arranged above the grinding trough (3), the outlet of the feed channel (12) is placed between two push plates (71), and a plurality of impellers (13) are arranged in parallel at the outlet end of the feed channel (12), the impellers (13) are connected to the output end of the reciprocating component (4) through an intermittent transmission component (14) to achieve intermittent rotation, and are used to evenly spread the material entering the feed channel (12) in the grinding trough (3).

10. The high-efficiency chemical raw material screening and grinding device according to claim 3, characterized in that: The portion of the screen plate (2) located between the two push plates (71) is arranged to be an arc-shaped surface facing the same direction as the arc-shaped bottom of the grinding groove (3), and the screen plate (2) is slidably connected to the grinding box (1), and an elastic member (15) is provided between the lower side of the screen plate (2) and the bottom wall of the grinding box (1).

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