A large block material crusher for calcined sodium sulfide and a crushing process thereof

Abstract

The application relates to the technical field of crushing machines, and discloses a sodium sulfide bulk material crusher after calcination and a crushing process thereof. In order to solve the problem that sodium sulfide not meeting the particle size is accumulated on a filter plate, during the tearing and crushing process of the bulk sodium sulfide by the driving crushing roller and the driven crushing roller, the rotary power generated by the driving crushing roller can drive the filter plate to swing in a fan shape up and down, so that the large-particle sodium sulfide filtered by the filter plate is thrown upwards, finally returns to the space between the driving crushing roller and the driven crushing roller again after passing through a return cavity part and a screening cavity part and is subjected to secondary crushing, the accumulation of the sodium sulfide on the filter plate is reduced, the sodium sulfide filtered by the filter plate is subjected to secondary crushing treatment, the particle size after output meets the actual production requirement, and finally the effect of throwing and returning the material of the filter plate and realizing secondary crushing is achieved.

Description

Technical Field

[0001] This invention relates to the technical field of crushing machinery, and in particular to a crusher for large pieces of sodium sulfide after calcination and its crushing process. Background Technology

[0002] Sodium sulfide is a crucial inorganic compound whose unique chemical properties and physical form enable its wide range of applications. The solid obtained by calcining sodium sulfide is then crushed into powder. These powders, due to their diverse chemical activities and specific physical forms, are widely used in various industrial sectors, including but not limited to the dye and printing industry, the leather industry, and the paper industry.

[0003] A search revealed that CN221471977U discloses a sodium sulfide feeding device, comprising: a temporary storage tank and a feeding cylinder. The temporary storage tank is equipped with support legs at the bottom and a temporary storage tank cover at the top, and a discharge port at the bottom. The feeding cylinder is equipped with a crushing roller at the top and a weighing component inside the feeding cylinder.

[0004] However, this traditional screening method has revealed its limitations in practical applications and is far from perfect. A particularly prominent and pressing problem in the specific operation is the frequent retention or accumulation of large sodium sulfide particles on the filter plate. This phenomenon not only directly slows down the screening process and significantly reduces screening efficiency, but also prevents some large sodium sulfide particles from being accurately and effectively separated from the mixture. This situation undoubtedly causes a chain reaction in subsequent production stages, seriously disrupting the smooth operation of the entire production process and posing a significant threat to the consistency of the final product's quality. The residue of large sodium sulfide particles may introduce uneven particle distribution into the product, thereby affecting the overall performance and application effect of the product.

[0005] Given the severity of this problem, how to effectively perform secondary crushing of large sodium sulfide particles to ensure that all particles meet the required particle size standard has become a key technical challenge that urgently needs to be overcome in the current sodium sulfide production process. Summary of the Invention

[0006] This invention proposes a crusher and crushing process for large pieces of sodium sulfide after calcination, which has the advantages of filter plate throwing and secondary crushing, in order to solve the problem of sodium sulfide that does not conform to the particle size and accumulates on the filter plate as mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a crusher for large pieces of sodium sulfide after calcination, comprising: a base, a crushing box fastened to the top, a control panel fixed to the outside of the crushing box, a motor reducer assembly located outside the crushing box driving the active crushing roller and the driven crushing roller inside the crushing box to rotate relative to each other through a transmission gear set, thereby crushing the lumpy sodium sulfide; a feed chamber is provided inside the crushing box and above the active crushing roller and the driven crushing roller; a filter plate is hingedly installed inside the crushing box and below the active crushing roller and the driven crushing roller, and filter holes are formed on the surface of the filter plate. The crushing box contains a return material chamber located above the filter plate and a screening chamber located on one side of the feed chamber. A guide frame is movably installed on the outside of the base. A piston base plate is fixedly installed at one end of the guide frame, and a top plate rod is fixedly installed on one side of the piston base plate. An adjusting frame is fixedly installed at the other end of the guide frame, and an adjusting rod slide is movably installed on the adjusting frame. A toothed disc fixed on the rotating shaft of the active crushing roller can drive the adjusting rod slide to rotate in a circle. The adjusting rod slide follows the rotation of the toothed disc and drives the adjusting frame to move up and down through the adjusting rod slide. The transmission of the guide frame forces the piston base plate to reciprocate inside the base.

[0008] Furthermore, a needle plate is installed at the bottom of the filter plate, and a return spring is connected between the needle plate and the bottom of the filter plate. The surface of the needle plate is provided with cleaning pins corresponding to the filter holes.

[0009] Furthermore, a feed box cover is movably installed on the top of the crushing box, a one-way air inlet valve is fixedly installed on the outer side of the crushing box at the bottom of the screening chamber, and a one-way exhaust valve cover, which is pushed by the valve cover top spring, is movably installed on the bottom of the piston base plate.

[0010] Furthermore, a pull rope connects the top of the top plate rod and the bottom of the needle plate.

[0011] Furthermore, a check plate located on one side of the toothed disc is fixedly installed on the outer side of the crushing box, and a support plate is installed at the end of the check plate. The adjusting rod slide is movably installed on the surface of the support plate. A return groove is opened at the bottom of the surface of the check plate, and a ring of external teeth is provided on the outer side of the surface of the toothed disc.

[0012] Furthermore, a fixed inner ring frame is fixedly installed on the driven crushing roller shaft, and a movable outer ring frame is movably fitted on the outer side of the driven crushing roller shaft end. The movable outer ring frame is located outside the fixed inner ring frame. A torque limiting push rod that is pushed outward by a spring is movably installed on the outer side of the fixed inner ring frame. The torque limiting push rod abuts against the internal teeth provided on the inner side of the movable outer ring frame. Locking teeth are fixedly installed on the outer side of the movable outer ring frame.

[0013] Furthermore, the locking teeth are L-shaped and there are six locking teeth in total. The six locking teeth are arranged in a ring at equal angles on the outside of the movable outer ring frame.

[0014] Furthermore, a limiting sleeve is movably installed on the outside of the crushing box and fixedly connected to the filter plate shaft. A check rod and a screen rod are provided on the outside of the limiting sleeve, and the check rod and the screen rod are arranged in a "V" shape.

[0015] A crushing process for large pieces of sodium sulfide after calcination includes the following steps:

[0016] S1. Place the lumpy sodium sulfide into the feed chamber of the equipment.

[0017] S2. Start the motor reducer assembly via the control panel. The motor reducer assembly drives the active crushing roller and the driven crushing roller to rotate synchronously through the transmission gear set, thereby crushing the blocky sodium sulfide placed between them.

[0018] S3. The crushed sodium sulfide lumps fall into the left end of the inclined filter plate. One end of the filter plate is hinged, and the other end is free to move, so that the crushed sodium sulfide particles slide to the right along the surface of the filter plate under the action of gravity.

[0019] S4. During the sliding process, small sodium sulfide particles fall through the filter holes on the filter plate, while large sodium sulfide particles accumulate on the right side of the filter plate.

[0020] S5. The rotation of the active crushing roller drives the coaxial toothed disc to rotate, and the toothed disc further drives the adjustment rod slide to rotate, forcing the adjustment frame to drive the piston base plate to move up and down reciprocally through the guide frame.

[0021] S6. When the piston bottom plate moves upward rapidly, the top plate rod on it hits the bottom of the filter plate, pushing the filter plate to deflect rapidly upward, causing the large sodium sulfide particles accumulated on the right side of the filter plate to be thrown along the direction of the return material chamber and fall vertically from the screening chamber.

[0022] S7. The sodium sulfide falling from the screening chamber is crushed again by the active crushing roller and the driven crushing roller to ensure that sodium sulfide does not accumulate on the surface of the filter plate.

[0023] The present invention has the following beneficial effects:

[0024] This invention provides a crusher and crushing process for large pieces of calcined sodium sulfide. The device cleverly combines the synergistic effect of an active crushing roller and a driven crushing roller, along with an innovative dynamic oscillation mechanism for the filter plate. During the crushing process, the active crushing roller, relying on its powerful rotational force, not only directly shreds large pieces of sodium sulfide but also simultaneously drives the filter plate to oscillate up and down in a fan shape. This design aims to effectively throw large particles of sodium sulfide retained or accumulated on the filter screen upwards through the reciprocating oscillation of the filter plate, avoiding the problem of excessive accumulation of sodium sulfide on the filter plate in traditional methods.

[0025] The large sodium sulfide particles that are thrown out then enter the return chamber and the screening chamber. After this series of dynamic processes, sodium sulfide particles that do not meet the particle size requirements are finally guided back between the active and driven crushing rollers for a more thorough secondary crushing process. This process not only significantly reduces the accumulation of sodium sulfide during the screening stage, but also ensures that all sodium sulfide particles, especially those larger particles that would have been difficult to pass the initial screening, can be crushed again until they meet the particle size standards required for actual production.

[0026] In summary, this crusher and its process, by introducing a dynamic oscillation mechanism of the filter plate and a return-screening circulation system, not only effectively solves the problem of accumulation during the crushing of large sodium sulfide materials, but also achieves efficient secondary crushing of sodium sulfide particles, ensuring the uniformity of particle size and quality stability of the final product. It truly achieves the expected effect of filter plate scattering and return material and secondary crushing, laying a solid foundation for the subsequent processing and application of sodium sulfide. Attached Figure Description

[0027] The accompanying drawings, which form part of this specification, illustrate embodiments of the invention and, together with the specification, serve to explain the principles of the invention.

[0028] The invention will be more clearly understood with reference to the accompanying drawings and the following detailed description, wherein:

[0029] Figure 1 This is a three-dimensional structural diagram of the right side of the present invention;

[0030] Figure 2 This is a three-dimensional structural diagram of the left side of the present invention;

[0031] Figure 3 This is a schematic diagram of the overall internal planar cross-sectional structure of the present invention;

[0032] Figure 4 This is a schematic diagram showing the position and three-dimensional structure of each component on the piston base plate of the present invention;

[0033] Figure 5 This is a schematic diagram showing the position and three-dimensional structure between the check plate and the adjusting frame of the present invention;

[0034] Figure 6 This is a schematic diagram showing the position and three-dimensional structure of the support disk of the present invention;

[0035] Figure 7 This is a schematic diagram of the position and three-dimensional structure of the limiting sleeve of the present invention;

[0036] Figure 8 for Figure 7 Enlarged 3D structural diagram at point E.

[0037] In the diagram: 1. Base; 2. Crushing box; 200. Return chamber; 201. Feed chamber; 202. Screening chamber; 3. Motor reducer assembly; 4. Transmission gear assembly; 5. One-way air inlet valve; 6. Control panel; 7. Feed box cover; 8. Check valve; 800. Return groove; 9. Guide frame; 10. Adjusting frame; 11. Adjusting rod slide; 12. Gear disc; 13. Active crushing roller; 130. 14. Driven crushing roller; 15. Filter plate; 16. Needle plate; 17. Return spring; 18. Piston base plate; 19. Top plate rod; 20. Pull rope; 21. One-way exhaust valve cover; 22. Valve cover top spring; 33. Support plate; 44. Limiting sleeve; 55. Check rod; 66. Screen rod; 77. Fixed inner ring frame; 88. Movable outer ring frame; 99. Torque limiting push rod; 10. Locking tooth. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1, please refer to Figure 1 and Figure 3 As can be seen, the base 1 can be installed in the required position using the pre-reserved lugs at the bottom. The crushing box 2 is connected to the top of the base 1 by bolts, and the base 1 and the crushing box 2 together constitute the overall shape of this application. The motor reducer assembly 3 is fixedly installed on one side of the crushing box 2 by a bracket, and a transmission gear assembly 4 with external teeth meshing is fixedly installed on the output end of the motor reducer assembly 3. The transmission gear is movably installed on the outer side of the crushing box 2, and the active crushing roller 13 and the driven crushing roller 130 are fixedly installed on the rotating shafts of the two gears respectively, ensuring that the active crushing roller 13 and the driven crushing roller 130 can rotate synchronously when the motor reducer assembly 3 drives the transmission gear assembly 4 to rotate, and finally crush the blocky sodium sulfide placed between them. More detailed, combined with Figure 3 It is evident that a feed chamber 201 is located at the top of the crushing box 2, above the active crushing roller 13 and the driven crushing roller 130. After the operator pours lumpy sodium sulfide into the feed chamber 201, the lumpy sodium sulfide will fall between the active crushing roller 13 and the driven crushing roller 130 under gravity. The operator only needs to control the rotation of the motor reducer group 3 through the control panel 6 fixed on the outside of the crushing box 2 to ultimately control the rotation speed of the active crushing roller 13.

[0040] The particle size requirements for sodium sulfide vary depending on the application. For example, in the dye industry, sodium sulfide is a crucial raw material for manufacturing sulfur dyes. The dye production process has strict requirements on the particle size of raw materials to ensure dye uniformity and dyeing effect. Therefore, the particle size of sodium sulfide needs to be controlled within a certain range to meet the needs of dye production. This first embodiment aims to ensure that the output sodium sulfide particle size meets the usage requirements, combined with… Figure 3 As can be seen, a filter plate 14 is hingedly installed inside the crushing box 2 and below the active crushing roller 13 / driven crushing roller 130. The surface of the filter plate 14 has filter holes for filtering the crushed sodium sulfide. Furthermore, a return material chamber 200 is arranged inside the crushing box 2 and on one side of the active crushing roller 13, above the filter plate 14. The inner part of the return material chamber 200 is arc-shaped, allowing the filter plate 14 to move up and down around the hinge point. Specifically, when the filter plate 14 moves upward around the hinge point, it can throw the sodium sulfide filtered from its surface upwards. Ultimately, the sodium sulfide will move through the return material chamber 200 to the screening chamber 202 located on one side of the feed chamber 201. The screening chamber 202 and the feed chamber 201 are generally separated by a metal baffle to prevent excessive material from being added to the feed chamber 201, which would prevent the upward-thrown sodium sulfide from being trapped in the return material chamber 200. Finally, the sodium sulfide entering the screening chamber 202 will undergo secondary crushing between the active crushing roller 13 and the driven crushing roller 130, ensuring that the sodium sulfide particle size output from the filter plate 14 meets the usage requirements. Furthermore, the residual sodium sulfide on the filter plate 14, after being thrown upwards, will reduce material accumulation and further increase filtration efficiency.

[0041] Regarding the power source for the upward spraying of the filter plate 14, combined with Figures 2-5 It can be seen that a U-shaped guide frame 9 is movably installed on the outer side of the base 1. A piston base plate 16, which is slidably connected to the inner side of the base 1, is fixedly installed at one end of the guide frame 9. When the guide frame 9 moves up and down, the piston base plate 16 can reciprocate up and down along the inner side of the base 1. A top plate rod 17, located below the filter plate 14, is fixedly installed on one side of the surface of the piston base plate 16. When the piston base plate 16 moves upward, the top plate rod 17 will eventually abut against the filter plate 14 and push the filter plate 14 to deflect upward. An adjustment frame 10 is fixedly installed at the other end of the guide frame 9. Figure 4As can be seen, the adjusting frame 10 is a cuboid, and a rectangular groove is provided on the side of the adjusting frame 10 for guiding the movement of the adjusting rod slide 11. The adjusting rod slide 11 is movably installed in the rectangular groove of the adjusting frame 10. The gear plate 12 fixed on the rotating shaft of the active crushing roller 13 can drive the adjusting rod slide 11 to rotate in a circle. Thus, when the active crushing roller 13 drives the gear plate 12 to rotate, the adjusting rod slide 11 follows the gear plate 12 to rotate and drives the adjusting frame 10 to move up and down. The transmission of the guide frame 9 forces the piston base plate 16 to reciprocate inside the base 1.

[0042] In practical applications, the operator puts the lumpy sodium sulfide into the feed chamber 201, and the control panel 6 controls the motor reducer group 3 to start working. The motor reducer group 3 causes the active crushing roller 13 and the driven crushing roller 130 to rotate synchronously through the transmission gear group 4, thereby crushing the lumpy sodium sulfide placed between the active crushing roller 13 and the driven crushing roller 130. The crushed lumpy sodium sulfide falls onto the filter plate 14 below.

[0043] Under normal circumstances, refer to Figure 3 As can be seen, one end of the filter plate 14 is hinged, while the other end is free to move. Therefore, the right side of the filter plate 14 will be tilted downwards. The lumpy sodium sulfide, after being crushed by the active crushing roller 13 and the driven crushing roller 130, falls to the left end of the filter plate 14. After being crushed, the sodium sulfide moves along the surface of the filter plate 14 towards the right end under gravity. During this process, smaller sodium sulfide particles will fall out of the filter holes, while larger sodium sulfide particles will accumulate on the right side of the filter plate 14.

[0044] During the rotation of the active crushing roller 13, the coaxial geared disc 12 also rotates synchronously. When the geared disc 12 drives the adjusting rod slide 11 to rotate, it forces the adjusting frame 10 to drive the guide frame 9 to reciprocate up and down. Correspondingly, the adjusting frame 10 drives the piston base plate 16 to reciprocate up and down synchronously through the guide frame 9. Figure 3 As shown, during the rapid upward movement of the piston base plate 16, the top plate rod 17 on the piston base plate 16 will eventually strike the bottom of the filter plate 14 and push the filter plate 14 to deflect rapidly upward through the top plate rod 17. After the filter plate 14 rapidly flips upward along the side of the return material chamber 200, it will throw the sodium sulfide accumulated on the right side along the direction of the return material chamber 200 and finally fall vertically from the screening chamber 202. The sodium sulfide entering the screening chamber 202 will be crushed again by the active crushing roller 13 / driven crushing roller 130, ensuring that sodium sulfide does not accumulate on the surface of the filter plate 14.

[0045] Example 2 is a further improvement on Example 1. Please refer to Example 1. Figure 3 and Figure 7It is evident that the filter plate 14 has needle plates 15 at its four bottom corners, guided by cylindrical rods. A return spring 150 connects the needle plates 15 to the bottom of the filter plate 14. The surface of the needle plates 15 is provided with cleaning pins corresponding to the filter holes. Under normal conditions, the needle plates 15 are pushed away from the filter plate 14 by the spring force of the return spring 150, leaving the filter holes on the filter plate 14 unobstructed and enabling the filtration of sodium sulfide. When the top plate rod 17 on the piston base plate 16 strikes the filter plate 14, it first contacts the needle plates 15, causing the cleaning pins on the needle plates 15 to pass through the filter holes in the filter plate 14. The needle plates 15 then push the filter plate 14 upwards, thus achieving the upward throwing action of sodium sulfide as described in Example 1.

[0046] Based on this, in order to further sieve the sodium sulfide accumulated on the surface of filter plate 14, combined with Figure 2 and Figure 3 As can be seen, a feed box cover 7 is movably installed on the top of the crushing box 2. When the feed box cover 7 is opened, the operator can pour lumpy sodium sulfide into the feed chamber 201; when the feed box cover 7 is closed and locked, the top of the feed chamber 201 will be relatively sealed, ultimately making the base 1 and the interior of the crushing box 2 in a relatively sealed state. A one-way air inlet valve 5 is fixedly installed on the outer side of the crushing box 2 at the bottom of the screening chamber 202. The one-way air inlet valve 5 can be used to realize the one-way conveying of external airflow into the screening chamber 202. Moreover, combined with Figure 2 and Figure 4 It can be seen that a one-way exhaust valve cover 18 guided by a round rod is movably installed at the bottom of the piston base plate 16, and the valve cover top spring 180 set on the outside of the round rod forces the one-way exhaust valve cover 18 to always push upward, forcing the one-way exhaust valve cover 18 to block the discharge round hole opened in the middle of the piston base plate 16.

[0047] In practical applications, after the operator pours the lumpy sodium sulfide into the feed chamber 201, the feed box cover 7 is closed. Then, the crushing process of the active crushing roller 13 and the driven crushing roller 130 on the lumpy sodium sulfide is as described in Example 1, and will not be repeated here.

[0048] As the piston base plate 16 moves upward, since both the base 1 and the crushing chamber 2 are in a relatively sealed state, the increased airflow pressure inside the base 1 and crushing chamber 2 forces the one-way exhaust valve cover 18 downward and compresses the valve cover top spring 180, causing the discharge hole to leak out and allowing the sodium sulfide powder collected on the surface of the piston base plate 16 to be discharged outward. As the piston base plate 16 moves upward, the top plate rod 17 will first reach the needle plate 15 and compress the return spring 150. The unblocking pin on the needle plate 15 will penetrate the filter holes on the surface of the filter plate 14 to clear the blockage. As the top plate rod 17 pushes further upward, the filter plate 14 will eventually deflect upward, thereby throwing the sodium sulfide accumulated on the right side of the filter plate 14 upward and finally entering the screening chamber 202. The sodium sulfide in the screening chamber 202 will fall vertically downward.

[0049] Subsequently, as the piston base plate 16 moves downward, the one-way exhaust valve cover 18 blocks the discharge hole under the elastic force of the valve cover top spring 180. The downward movement of the piston base plate 16 causes a relative decrease in the airflow pressure inside the base 1, and the external airflow enters the screening chamber 202 through the one-way air inlet valve 5. Since the active crushing roller 13 and the driven crushing roller 130 are covered with blocky sodium sulfide, while the area of ​​the return chamber 200 is not blocked, most of the airflow entering from the one-way air inlet valve 5 will be blown from the screening chamber 202 to the return chamber 200. The upward airflow is opposite to the downward-falling sodium sulfide powder, and the powder that has not been filtered out from the filter holes will be blown by the airflow and blown again through the return chamber 200 towards the filter plate 14, so that the sodium sulfide powder that meets the particle size can be directly filtered again by the filter plate 14.

[0050] Furthermore, in order to ensure that the filter plate 14 deflects downward more quickly, combined with Figure 3 and Figure 4 As can be seen, a pull rope 170 is connected between the top of the top plate rod 17 and the bottom of the needle plate 15. When the piston bottom plate 16 moves down and the pull rope 170 is tightened, the pull rope 170 will drag the needle plate 15 downward and quickly disengage from the filter plate 14. As the needle plate 15 is further dragged down, the filter plate 14 will deflect further downward, so that the filter plate 14 can deflect downward and reset more quickly.

[0051] Example 3 is a further improvement on Example 2. Please refer to Example 2. Figure 2 , Figure 5 and Figure 6 As can be seen, a check plate 8 is fixedly installed on the outer side of the crushing box 2, located on one side of the toothed disc 12. The end of the check plate 8 has a support plate 19 mounted using a bearing. An adjusting rod slide 11 is movably mounted on the surface of the support plate 19, allowing the adjusting rod slide 11 to move within a certain range along the radial direction of the support plate 19. In practical applications, such as... Figure 6As shown, according to usage requirements, a spring can also be connected between the adjusting rod slide 11 and the support plate 19, so that the adjusting rod slide 11 always moves away from the support plate 19 under the push of the spring force.

[0052] The bottom of the check plate 8 has a return groove 800, the opening of which is V-shaped. This groove is designed to accommodate the return flow from... Figure 2 As can be seen, a ring of external teeth is provided on the outer side of the surface of the gear disk 12. When the adjusting rod slide 11 moves circumferentially along the outer wall of the check plate 8, it is restricted by the check plate 8, which forces the adjusting rod slide 11 to always be against the external teeth of the gear disk 12. When the gear disk 12 drives the external teeth to rotate circumferentially, it can drive the adjusting rod slide 11 to rotate synchronously, and then use the adjusting rod slide 11 to make the adjusting frame 10 move up and down reciprocally. If the adjusting rod slide 11 enters the return groove 800, the adjusting rod slide 11 will no longer be placed between the external teeth of the gear disk 12, and the rotation of the gear disk 12 will not drive the adjusting rod slide 11 to rotate.

[0053] Combination Figure 7 and Figure 8 It can be seen that a fixed inner ring frame 21 is fixedly installed on the shaft of the driven crushing roller 130 and located on the outer side of the crushing box 2. A movable outer ring frame 210 is movably fitted on the outer side of the shaft end of the driven crushing roller 130. The movable outer ring frame 210 is located outside the fixed inner ring frame 21. A torque limiting push rod 211, which is pushed outward by a spring, is movably installed on the outer side of the fixed inner ring frame 21. The torque limiting push rod 211 abuts against the internal teeth provided on the inner side of the movable outer ring frame 210. When the load on the rotation of the movable outer ring frame 210 is too large, the torque limiting push rod 211 can slide along the inner side of the movable outer ring frame 210, thereby cutting off the power transmission between the two. Locking teeth 22 are fixedly installed on the outer side of the movable outer ring frame 210. The locking teeth 22 are L-shaped and there are six locking teeth 22. The six locking teeth 22 are arranged in a ring at equal angles on the outer side of the movable outer ring frame 210.

[0054] A limiting sleeve 20, which is fixedly connected to the rotating shaft of the filter plate 14, is movably installed on the outside of the crushing box 2. A check rod 2001 and a screen rod 2002 are provided on the outside of the limiting sleeve 20. The check rod 2001 and the screen rod 2002 are arranged in a "V" shape. More specifically, the end of the check rod 2001 is provided with an angle, such as... Figure 8 As shown, when the movable outer ring 210 rotates counterclockwise and the check rod 2001 rotates counterclockwise along with the limiting sleeve 20, the locking teeth 22 will increase the resistance to the release of the check rod 2001.

[0055] In actual operation of this embodiment, the operator pours the lumpy sodium sulfide into the feed chamber 201 and closes and locks the feed box cover 7. The control panel 6 starts the motor reducer assembly 3. The transmission gear assembly 4 makes the active crushing roller 13 and the driven crushing roller 130 work synchronously, and the crushed lumpy sodium sulfide falls onto the surface of the filter plate 14.

[0056] Initially, because there are relatively few sodium sulfide particles accumulated on filter plate 14, the downward deflection of filter plate 14 is relatively light. At this time, the direction is as follows: Figure 7 As shown, the filter plate 14 deflects downwards, causing the screen rod 2002 to approach the outer side of the movable outer ring frame 210. At this time, there is no contact between the screen rod 2002 and the movable outer ring frame 210. During the process of the driven crushing roller 130 driving the fixed inner ring frame 21 to rotate counterclockwise, the torque limiting push rod 211 will push the movable outer ring frame 210 to rotate synchronously and rapidly. As the locking tooth 22 follows the rotation of the movable outer ring frame 210, it will push the screen rod 2002 to deflect outwards, causing the limiting sleeve 20 to have a clockwise deflection tendency. After the locking tooth 22 passes the screen rod 2002, under the action of the filter plate 14's own weight and the downward traction force of the piston bottom plate 16, the filter plate 14 will deflect downwards again. During this process, the filter plate 14 is inclined downwards and tends to swing up and down slightly, which not only facilitates the passage of sodium sulfide through the filter holes, but also enables the large sodium sulfide particles to be conveyed to the right side of the filter plate 14, which is convenient for subsequent conveying into the screening chamber 202.

[0057] During the above operation, the piston base plate 16 detaches from the bottom of the base 1, and the adjusting rod slide 11 is in the return groove 800. Therefore, when the active crushing roller 13 drives the toothed disc 12 to rotate, the adjusting rod slide 11 will not contact the outer teeth of the toothed disc 12. As the amount of sodium sulfide particles accumulating on the filter plate 14 increases, the downward deflection of the filter plate 14 will increase. The force of the screen rod 2002 being pressed towards the movable outer ring frame 210 by the limiting sleeve 20 will increase until the pressing force of the screen rod 2002 overcomes the torque limitation between the fixed inner ring frame 21 and the movable outer ring frame 210. The downward deflection force of the screen rod 2002 by the filter plate 14 increases, and it will eventually abut against the outside of the movable outer ring frame 210. Moreover, as the weight of the filter plate 14 increases, the filter plate 14 will deflect further downward, and the piston base plate 16, pulled by the pull rope 170, will move further downward. The direction is as follows. Figure 2As shown, the adjusting rod slide 11, continuing its downward movement, abuts against the outer tooth spacing of the gear disc 12. The outer teeth of the gear disc 12 push the adjusting rod slide 11 to rotate clockwise along the outer side of the check plate 8. Then, as the adjusting rod slide 11 rotates with the gear disc 12, it drives the adjusting frame 10 upwards, using the guide frame 9 to push the piston base plate 16 into the inner side of the base 1 until the top plate rod 17 abuts against the bottom of the needle plate 15. Afterwards, the needle plate 15 is pushed first, and the unclogging pins on the surface of the needle plate 15 penetrate the filter holes on the surface of the filter plate 14, thus unclogging the filter holes. As the top plate rod 17 moves further upwards, the filter plate 14 throws the accumulated sodium sulfide particles on the right side upwards along the return material chamber 200, and finally into the screening chamber 202. It can be seen that in this embodiment, during operation, the weight of sodium sulfide on filter plate 14 can be detected, thereby ensuring that the filter plate 14 automatically deflects upwards once the sodium sulfide particles on it reach the cleaning threshold. This method avoids the problem that frequent up-and-down movement of filter plate 14 causes sodium sulfide to be thrown upwards before it reaches the right side of filter plate 14, preventing the sodium sulfide on filter plate 14 from moving along the return chamber 200.

[0058] At the same time, when the filter plate 14 deflects upward and conveys the sodium sulfide particles accumulated on its surface to the screening chamber 202, the weight on the surface of the filter plate 14 is relatively reduced, combined with Figure 7 and Figure 8 As the filter plate 14 rotates clockwise upwards, the limiting sleeve 20 drives the check rod 2001 to rotate clockwise as well. This causes the check rod 2001 to abut against the outer side of the movable outer ring frame 210. The locking teeth 22 restrict the end of the check rod 2001, increasing the resistance to its downward counter-clockwise rotation. This ensures that the filter plate 14 remains tilted upwards for a certain period after its upward rotation. Afterwards, as the gear disc 12 drives the adjusting rod slide 11 past its highest position, the adjusting rod slide 11 drives the adjusting frame 10 downwards, and the piston base plate 16 moves downwards. At this time, the one-way exhaust valve cover 18 is closed, allowing external airflow to enter the screening chamber 202 through the one-way intake valve 5. The airflow passes through the screening chamber 202 and the return chamber 200, causing the sodium sulfide powder scattered in the screening chamber 202 to be blown back onto the filter plate 14. At this time, the needle plate 15 is relatively far away from the filter plate 14, which removes the obstruction to the filter holes. When the filter plate 14 is tilted upward, the filter holes on the right side of the filter plate 14 are not filtered. Therefore, the sodium sulfide powder can finally pass through the filter holes on the right side of the filter plate 14, completing the secondary filtration process of the sodium sulfide powder.

[0059] When the adjusting rod slide 11 approaches the return groove 800, the piston base plate 16 will also disengage from the bottom of the base 1, the pull rope 170 will be tightened, and the needle plate 15 will pull the filter plate 14 downward, forcing the filter plate 14 to deflect downward, increasing the downward force and forcing the check rod 2001 and the locking tooth 22 to disengage. As the filter plate 14 deflects downward, the screen rod 2002 will eventually move towards the movable outer ring frame 210.

[0060] When the adjusting rod slide 11 passes through the return groove 800, since there is relatively little sodium sulfide on the surface of the filter plate 14 at this time, the screen rod 2002 cannot approach the movable outer ring frame 210 due to the continuous rotation of the locking teeth 22 driven by the movable outer ring frame 210. Therefore, the filter plate 14 cannot deflect further downwards. The piston base plate 16 is pulled upwards by the pull rope 170, causing the adjusting rod slide 11 to enter the return groove 800. The adjusting rod slide 11 will also disengage from the outer teeth of the toothed disc 12. Afterwards, as mentioned above, when too many sodium sulfide particles accumulate on the filter plate 14, the downward deflection intensity of the filter plate 14 will increase, which will cause the adjusting rod slide 11 to engage with the outer teeth of the toothed disc 12 again, and crush the sodium sulfide particles accumulated on the filter plate 14 again.

Claims

1. A crusher for large pieces of sodium sulfide after calcination, characterized in that, include: The base (1) is fastened to the top of the crushing box (2). The control panel (6) is fixed on the outside of the crushing box (2). The motor reducer group (3) set on the outside of the crushing box (2) can drive the active crushing roller (13) and the driven crushing roller (130) inside the crushing box (2) to rotate relative to each other through the transmission gear group (4), so as to crush the block sodium sulfide. A feed chamber (201) is provided inside the crushing box (2) and above the active crushing roller (13) and the driven crushing roller (130); a filter plate (14) is hingedly installed inside the crushing box (2) and below the active crushing roller (13) and the driven crushing roller (130), and filter holes are provided on the surface of the filter plate (14); a return chamber (200) located above the filter plate (14) and a screening chamber (202) located on one side of the feed chamber (201) are arranged inside the crushing box (2); A guide frame (9) is movably installed on the outer side of the base (1). A piston base plate (16) is fixedly installed at one end of the guide frame (9). A top plate rod (17) is fixedly installed on one side of the surface of the piston base plate (16). An adjustment frame (10) is fixedly installed at the other end of the guide frame (9). An adjustment rod slide (11) is movably installed on the adjustment frame (10). The toothed disc (12) fixed on the rotating shaft of the active crushing roller (13) can drive the adjusting rod slide (11) to rotate in a circle. The adjusting rod slide (11) rotates with the toothed disc (12) and drives the adjusting frame (10) to move up and down through the adjusting rod slide (11). The transmission of the guide frame (9) forces the piston base plate (16) to reciprocate inside the base (1). The top of the crushing box (2) is movably fitted with a feed box cover (7), and the outer side of the crushing box (2) is fixedly fitted with a one-way air inlet valve (5) located at the bottom of the screening chamber (202). The bottom of the piston base plate (16) is movably fitted with a one-way exhaust valve cover (18) pushed by the valve cover top spring (180). When the piston base plate (16) moves downward, the downward piston base plate (16) causes the airflow pressure inside the base (1) to decrease relatively. The external airflow enters the screening chamber (202) through the one-way air inlet valve (5). The airflow entering through the one-way air inlet valve (5) will blow from the screening chamber (202) to the return chamber (200). The upward airflow is opposite to the downward-sprinkled sodium sulfide powder. The powder will be blown by the airflow and blown again through the return chamber (200) towards the filter plate (14).

2. The large-piece crusher for sodium sulfide calcination as described in claim 1, characterized in that, A needle plate (15) is installed at the bottom of the filter plate (14), and a reset spring (150) is connected between the needle plate (15) and the bottom of the filter plate (14). A cleaning pin corresponding to the filter hole is provided on the surface of the needle plate (15).

3. The large-piece crusher for sodium sulfide calcination as described in claim 1, characterized in that, A pull rope (170) is connected between the top of the top plate rod (17) and the bottom of the needle plate (15).

4. The large-piece crusher for sodium sulfide calcination as described in claim 3, characterized in that, A check plate (8) located on one side of the toothed disc (12) is fixedly installed on the outer side of the crushing box (2), and a support plate (19) is installed at the end of the check plate (8). The adjusting rod slide (11) is movably installed on the surface of the support plate (19). A return groove (800) is opened at the bottom of the surface of the check plate (8), and a ring of external teeth is provided on the outer side of the surface of the toothed disc (12).

5. The large-piece crusher for sodium sulfide calcination as described in claim 4, characterized in that, The driven crushing roller (130) has a fixed inner ring frame (21) fixedly installed on its shaft, and a movable outer ring frame (210) is movably fitted on the outer side of the shaft end of the driven crushing roller (130). The movable outer ring frame (210) is located outside the fixed inner ring frame (21). A torque limiting push rod (211) is movably installed on the outer side of the fixed inner ring frame (21) and is pushed outward by a spring. The torque limiting push rod (211) abuts against the inner teeth provided on the inner side of the movable outer ring frame (210). A locking tooth (22) is fixedly installed on the outer side of the movable outer ring frame (210).

6. The large-piece crusher for sodium sulfide calcination as described in claim 5, characterized in that, The locking teeth (22) are L-shaped and there are six locking teeth (22). The six locking teeth (22) are arranged in a ring at equal angles on the outside of the movable outer ring frame (210).

7. The large-piece crusher for sodium sulfide calcination as described in claim 5, characterized in that, A limiting sleeve (20) is movably installed on the outside of the crushing box (2) and fixedly connected to the rotating shaft of the filter plate (14). A check rod (2001) and a screen rod (2002) are provided on the outside of the limiting sleeve (20). The check rod (2001) and the screen rod (2002) are arranged in a "V" shape.

8. A crushing process for a large piece of sodium sulfide crusher as described in claim 1, characterized in that, Includes the following steps: S1. Place the lumpy sodium sulfide into the feed chamber (201) of the equipment; S2. Start the motor reducer group (3) through the control panel (6). The motor reducer group (3) drives the active crushing roller (13) and the driven crushing roller (130) to rotate synchronously through the transmission gear group (4), thereby crushing the blocky sodium sulfide placed between them. S3. The crushed sodium sulfide lumps fall into the left end of the inclined filter plate (14). One end of the filter plate (14) is hinged, and the other end is in a free state, so that the crushed sodium sulfide particles slide to the right along the surface of the filter plate (14) under the action of gravity. S4. During the sliding process, small sodium sulfide particles fall through the filter holes on the filter plate (14), while large sodium sulfide particles accumulate on the right side of the filter plate (14). S5. The rotation of the active crushing roller (13) drives the coaxial toothed disc (12) to rotate. The toothed disc (12) further drives the adjusting rod slide (11) to rotate, forcing the adjusting frame (10) to drive the piston base plate (16) to move up and down through the guide frame (9). S6. When the piston bottom plate (16) moves upward quickly, the top plate rod (17) on it hits the bottom of the filter plate (14), pushing the filter plate (14) to deflect upward quickly, causing the large sodium sulfide particles accumulated on the right side of the filter plate (14) to be thrown along the return chamber (200) and fall vertically from the screening chamber (202). S7. Sodium sulfide falling from the screening chamber (202) is crushed again by the active crushing roller (13) and the driven crushing roller (130) to ensure that sodium sulfide does not accumulate on the surface of the filter plate (14).

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