A device and method for filtering solid cyanuric acid from a liquid phase

Abstract

The present invention relates to the field of filtering and processing technology, and specifically to a device and method for filtering solid cyanuric acid from a liquid phase. The device comprises a housing and a filter cloth arranged in the housing and used to filter cyanuric acid from a liquid phase. A discharge port is arranged at the top of the housing. The filter cloth is in a long strip shape and connected end to end to form a closed loop. A conveying roller for driving the filter cloth is arranged to rotate in the housing. A diversion chute is arranged in the housing below the upper filter cloth and used to guide water out of the housing. A cleaning part is arranged above the lower filter cloth below the diversion chute. A discharge channel is arranged below the filter cloth. A filter assembly is arranged on the bottom surface of the discharge channel. A reciprocating push plate mechanism is arranged on the filter assembly. Discharge ports are arranged on both sides of the bottom end of the discharge channel. The automated filtering and cleaning process of the present invention reduces the need for manual intervention, reduces the risk of material accumulation and clogging, and facilitates continuous operation.

Description

Technical Field

[0001] The invention relates to the technical field of filtration processing, and in particular to a device and method for filtering solid cyanuric acid from a liquid phase. Background Art

[0002] Cyanuric acid appears as odorless white powder or granules, slightly soluble in water, and the finished product is white crystals. The preparation process of cyanuric acid adopts the solid phase melting method, and its raw material is mainly uric acid. Specifically, urea is heated to 200~300℃ in a kiln, and urea undergoes thermal decomposition and cyclization reaction at this temperature to generate crude cyanuric acid. In subsequent treatment, 15%~20% sulfuric acid (or nitric acid, hydrochloric acid) is added to the crude cyanuric acid for cooking. Then, after filtering, washing, drying and other process steps, the finished cyanuric acid is finally obtained.

[0003] In the subsequent processing process, filtering is usually carried out using filter cloth. However, during the continuous filtration through the filter cloth, crystalline cyanuric acid is easy to adhere to the filter cloth and cause blockage, especially at the corners. Blockage of the filter cloth will cause the filtration speed to slow down, and even require frequent shutdown for cleaning or replacement of the filter cloth, thereby reducing production efficiency.

[0004] In the prior art, the patent document with the authorization announcement number CN214861571U discloses a filtering device for cyanuric acid production, including a trough, a drainage pipe connected to the lower end of the trough is fixed thereto, a filter bag is placed in the trough, and the bag mouth of the filter bag is folded outward and covered on the upper end of the trough. When it is used, when the filter cloth belt is continuously filtered, the crystallized cyanuric acid is easy to adhere to the filter cloth bag, which is easy to cause blockage, and is not convenient for continuous filtering production.

[0005] In the prior art, the patent document with the authorization announcement number CN215822421U discloses a filter press for trichloroisocyanuric acid production, comprising: a fixed base, a transmission belt is arranged on the surface of the inner wall of the fixed base, a filter plate is arranged above the transmission belt, a liquid inlet pipe is installed on one side of the filter plate, an electric push rod is arranged above the fixed base, a working box is arranged above the electric push rod, a micro motor is installed on the side of the working box, a main rotating shaft is movably connected to the side of the inner wall of the working box, a driven gear is arranged on one side of the main rotating shaft, a driven rotating shaft is fixedly connected to the bottom of the driven gear, the bottom of the driven rotating shaft extends through the surface of the working box, and a brush is arranged on the surface of the driven rotating shaft. Trichloroisocyanuric acid is also a white crystalline powder, and the filtering method is similar to that of cyanuric acid. When it is filtered through the above structure, the brush can remove the filter residue remaining on the filter cloth filter plate, achieving the effect of using the brush to clean the residue on the filter cloth and the filter plate, but the cleaning range of the brush is limited, and the material at the corners of the filter cloth of the filter plate cannot be cleaned. Summary of the invention

[0006] The present invention provides a device and method for filtering solid cyanuric acid from a liquid phase, so as to solve the technical problem in the prior art that when cyanuric acid is filtered through a filter cloth, a filter cloth is easily clogged, which affects the filtering efficiency and affects the continuous filtering production.

[0007] In order to solve the above problems, the present invention provides a device and method for filtering solid cyanuric acid from a liquid phase, which adopts the following technical solutions:

[0008] The filter cloth comprises a shell and a filter cloth arranged in the shell and used for filtering cyanuric acid from a liquid phase, a discharge port is arranged at the top of the shell, the filter cloth is in the shape of an elongated strip and connected end to end to form a closed loop, a conveying roller for driving the filter cloth to be rotatably arranged in the shell, a diversion chute is arranged in the shell and is located below the upper filter cloth and is used for guiding water out of the shell, a cleaning part is arranged below the diversion chute and is located above the lower filter cloth, a discharge channel is arranged below the filter cloth, one side of the discharge channel is a scraper for scraping off the material on the lower surface of the lower filter cloth, the other side of the discharge channel is provided with an inclined guide plate for guiding the material into the discharge channel, a filter assembly is arranged on the bottom surface of the discharge channel, a reciprocating push plate mechanism is arranged on the filter assembly, discharge ports are arranged on both sides of the bottom end of the discharge channel, and the material in the discharge channel is pushed to be discharged alternately from the two discharge ports through the action of the reciprocating push plate mechanism.

[0009] By adopting the above technical scheme, the continuous transmission of the filter cloth is realized through the long closed-loop design of the filter cloth combined with the drive of the conveyor roller. The upper and lower filter cloths are used alternately, so that the cyanuric acid filtered out by the upper filter cloth can smoothly enter the discharge channel, while the lower filter cloth is pre-cleaned by the cleaning part to prepare for the next filtration. The cleaning part flushes the cyanuric acid on the outer surface of the lower filter cloth by spraying water, and combined with the further scraping treatment of the scraper, the filter cloth is effectively prevented from being blocked.

[0010] When the cleaning element sprays the lower filter cloth, the cyanuric acid filtered by the upper filter cloth is also initially washed.

[0011] When the reciprocating push plate mechanism pushes the material in the discharge channel to be discharged alternately from the two discharge ports, it can also prevent cyanuric acid from adhering to the filter component and prevent the filter component from being blocked.

[0012] Furthermore, the bottom end of the first baffle on the side of the feed outlet abuts against the upper surface of the upper filter cloth, and a gap is left between the bottom end of the second baffle opposite to the first baffle and the upper surface of the upper filter cloth, and the gap forms a feed outlet.

[0013] The side plate on one side of the diversion chute is correspondingly arranged below the first baffle, and the width between the two side plates of the diversion chute is greater than the width of the discharge port.

[0014] By adopting the above technical solution, the first baffle on the side of the discharge port abuts against the upper surface of the upper filter cloth and corresponds to the side plate on one side of the diversion chute, so that the upper filter cloth can slide through between the first baffle and the side plate of the diversion chute. On the one hand, it ensures that the incoming liquid phase material falls above the diversion chute, and on the other hand, a feed port is formed so that the material forms a certain thickness layer on the filter cloth, thereby increasing the filtration area and filtration efficiency, and helping to maintain the permeability of the filter cloth.

[0015] Furthermore, the cleaning part comprises a spray pipe, the axial direction of the spray pipe is consistent with the axial direction of the conveying roller, and a spray groove is formed on the lower end surface of the spray pipe.

[0016] The spray pipe is correspondingly located above the inclined guide plate.

[0017] By adopting the above technical solution, the spray water can be evenly sprayed on the lower filter cloth through the cleaning effect of the spray pipe. As the filter cloth is conveyed, the spray water can fully cover the surface of the filter cloth, effectively washing away the cyanuric acid attached to the filter cloth, and the material residue on the filter cloth is promptly removed, avoiding the clogging problem caused by the accumulation of materials for a long time, helping to maintain the permeability of the filter cloth and improve the filtration efficiency.

[0018] In addition, the spray pipe is located above the inclined guide plate so as to achieve preliminary washing of the cyanuric acid on the inclined guide plate.

[0019] Furthermore, the filter assembly includes a porous filter plate and a filter layer arranged on the upper surface of the porous filter plate.

[0020] Furthermore, the reciprocating push plate mechanism includes a movable plate, the bottom end of the movable plate abuts against the upper surface of the filter assembly, movable rods are provided on both sides of the movable plate, a slide groove cavity is provided on the side wall of the shell, the movable rod is slidably arranged in the slide groove cavity, and a telescopic part that drives the movable rod to reciprocate is provided on the outer wall of the shell.

[0021] By adopting the above technical solution, the reciprocating push plate mechanism can push the materials in the discharge channel to be discharged alternately from the two discharge ports through the reciprocating movement of the moving plate, thereby avoiding the problem of long-term retention and agglomeration of materials in the discharge channel, thereby improving the discharge efficiency. The action of the reciprocating push plate mechanism can continuously stir and push the materials in the discharge channel, which helps to prevent the materials from clogging the channel. In addition, the reciprocating push plate mechanism can also clean the filter assembly to a certain extent while pushing the materials out. It helps to maintain the cleanliness and permeability of the filter assembly, thereby improving the filtering effect.

[0022] Furthermore, power cabins are provided on both sides of the discharge channel, and auxiliary unloading mechanisms cooperating with the movable plate are provided in the power cabins.

[0023] Furthermore, the auxiliary unloading mechanism includes an L-shaped plate and a power component for driving the L-shaped plate to move, and when the L-shaped plate moves, the discharge port adjacent to the L-shaped plate is opened or closed.

[0024] A push plate is arranged on one side of the L-shaped plate close to the moving plate, and a spring is arranged between the push plate and the vertical plate of the L-shaped plate.

[0025] By adopting the above technical solution, when the L-shaped plate moves, the discharge port close to it can be opened or closed, making the discharge process more precise and controllable. During the discharge process, the push plate and the moving plate cooperate to squeeze, so that the moisture in the material is more easily discharged.

[0026] Furthermore, the power assembly includes a lead screw and a motor for driving the lead screw to rotate, the motor is fixed on the outer wall of the shell, and the lead screw penetrates the vertical plate of the L-shaped plate through threaded engagement.

[0027] Furthermore, a first tooth plate is provided on the side of the vertical plate of the L-shaped plate opposite to the push plate, and a second tooth plate is provided on the side of the push plate opposite to the vertical plate of the L-shaped plate.

[0028] A gear shaft is rotatably provided on the inner wall of the housing, and the gear shaft comprises complete teeth meshing with the first tooth plate and incomplete teeth meshing with the second tooth plate.

[0029] By adopting the above technical solution, when the lead screw rotates to drive the L-shaped plate to move, the first tooth plate meshes with the complete teeth, and at the same time, the second tooth plate meshes with the incomplete teeth. Under the action of the spring, the push plate can produce reciprocating vibrations, which helps to better squeeze the material, promote the discharge of moisture, and also facilitate the smooth discharge of the material.

[0030] A method for filtering solid cyanuric acid from a liquid phase, using the above-mentioned device for filtering solid cyanuric acid from a liquid phase, comprises the following steps: introducing a liquid phase mixture containing solid cyanuric acid into a shell from a feed outlet, and after entering the shell, first filtering through an upper layer of a filter cloth, the filtered liquid phase downwardly enters a guide chute and is transported to the outside of the shell, and the cyanuric acid filtered out of the upper layer of the filter cloth enters a discharge channel through an inclined guide plate as the filter cloth is transported.

[0031] The cyanuric acid attached to the outer surface of the filter cloth is washed down into the discharge channel by the cleaning element through the spray water when the filter cloth is transferred to the lower layer, and then further scraped off when passing through the scraper.

[0032] The spray water entering the discharge channel is discharged through the filter assembly, and the material entering the discharge channel is discharged alternately from the two discharge ports through the action of the reciprocating push plate mechanism, so as to realize continuous operation.

[0033] By adopting the above technical solution, the automated filtration and cleaning process reduces the need for manual intervention, reduces labor intensity, improves the working environment, reduces the risk of material accumulation and clogging in the filter cloth and discharge channel, and ensures the stable operation of the equipment.

[0034] The beneficial effects of the present invention are as follows: through the long strip closed loop design of the filter cloth combined with the drive of the conveying roller, the continuous transmission of the filter cloth is realized, and the upper and lower filter cloths are used alternately, so that the cyanuric acid filtered out by the upper filter cloth can smoothly enter the discharge channel, and the lower filter cloth is pre-cleaned by the cleaning part to prepare for the next filtration. The cleaning part flushes the cyanuric acid on the outer surface of the lower filter cloth by spraying water, and combined with the further scraping treatment of the scraper, the filter cloth is effectively prevented from being blocked.

[0035] When the cleaning element sprays the lower filter cloth, the cyanuric acid filtered by the upper filter cloth is also initially washed.

[0036] When the reciprocating push plate mechanism pushes the material in the discharge channel to be discharged alternately from the two discharge ports, it can also prevent cyanuric acid from adhering to the filter component and prevent the filter component from being blocked. In addition, it is more convenient for the material to be discharged smoothly and continuous operation can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0038] Figure 1 It is a schematic structural diagram of a device for filtering solid cyanuric acid from a liquid phase according to the present invention;

[0039] Figure 2 It is a schematic diagram of a front cross-sectional structure of a device for filtering solid cyanuric acid from a liquid phase according to the present invention;

[0040] Figure 3 for Figure 2 A partial enlarged view of the middle area A;

[0041] Figure 4 It is a top view and cross-sectional structure schematic diagram of a device for filtering solid cyanuric acid from a liquid phase according to the present invention;

[0042] Figure 5 for Figure 4 A partial enlarged view of area B in the middle.

[0043] Description of reference numerals:

[0044] 1. Shell; 11. Feeding port; 111. First baffle; 112. Second baffle; 113. Feeding port; 12. Guide chute; 13. Discharging channel; 131. Scraper; 132. Inclined guide plate; 133. Discharging port; 14. Slide chamber; 15. Telescopic member; 16. Power compartment; 17. Gear shaft; 171. Complete teeth; 172. Incomplete teeth; 2. Filter cloth; 21. Conveying roller; 3. Cleaning member; 31. Spray pipe; 311. Spray trough; 4. Filter assembly; 41. Porous filter plate; 42. Filter layer; 5. Reciprocating push plate mechanism; 51. Moving plate; 52. Moving rod; 6. Auxiliary feeding mechanism; 61. L-shaped plate; 611. First tooth plate; 62. Power assembly; 621. Lead screw; 622. Motor; 63. Push plate; 631. Second tooth plate; 64. Spring. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0046] Any number of elements in the drawings is for illustration and not limitation, and any naming is for distinction only and does not have any limiting meaning.

[0047] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0048] An embodiment of a device for filtering solid cyanuric acid from a liquid phase provided by the present invention:

[0049] like Figures 1 to 5 As shown, it includes a housing 1, a filter cloth 2, a cleaning component 3, a filter assembly 4, a reciprocating push plate mechanism 5 and an auxiliary unloading mechanism 6.

[0050] The filter cloth 2 is arranged in the shell 1 and is used to filter cyanuric acid from the liquid phase. The cleaning part 3 is used to rinse the filter cloth 2 to prevent the filter cloth 2 from being blocked, and at the same time, the cyanuric acid filtered by the filter cloth 2 is preliminarily washed. The filter component 4 filters the washed cyanuric acid and discharges it to the outside with the assistance of the reciprocating push plate mechanism 5 and the auxiliary unloading mechanism 6.

[0051] The filter cloth 2 is in the shape of a long strip and connected end to end to form a closed loop, and a conveying roller 21 is rotatably provided in the housing 1 for driving the filter cloth 2. Through the long strip closed loop design of the filter cloth 2 and the driving of the conveying roller 21, the continuous transmission of the filter cloth 2 is realized, and the upper and lower filter cloths 2 are convenient for alternating use.

[0052] The top of the housing 1 is provided with a feed opening 11, and the filter cloth 2 is provided below the feed opening 11. The bottom end of the first baffle 111 on the side of the feed opening 11 abuts against the upper surface of the upper filter cloth 2, and a gap is left between the bottom end of the second baffle 112 opposite to the first baffle 111 and the upper surface of the upper filter cloth 2, and the gap forms a feed port 113.

[0053] The first baffle 111 on the side of the discharge port 11 abuts against the upper surface of the upper filter cloth 2, providing certain guidance and limitation for the incoming liquid phase material. On the other hand, a feed port 113 is formed so that the material forms a layer of a certain thickness on the filter cloth 2, thereby increasing the filtration area and filtration efficiency, and helping to maintain the permeability of the filter cloth 2.

[0054] The shell 1 is provided with a diversion chute 12 below the upper filter cloth 2 and used to guide water out of the shell 1. The liquid mixture containing solid cyanuric acid enters the shell 1 from the discharge port 11, and after entering the shell 1, it is first filtered through the upper layer of the filter cloth 2, and the filtered liquid phase enters downward into the diversion chute 12 and is transported to the outside of the shell 1 through the diversion chute 12.

[0055] The side plate on one side of the guide chute 12 is correspondingly arranged below the first baffle 111 , and the width between the two side plates of the guide chute 12 is greater than the width of the discharge port 11 .

[0056] The cleaning part 3 is arranged below the diversion chute 12 and above the lower filter cloth 2. The cleaning part 3 includes a spray pipe 31, the axial direction of the spray pipe 31 is consistent with the axial direction of the conveying roller 21, and a spray groove 311 formed by a slit is provided on the lower end surface of the spray pipe 31. One end of the spray pipe 31 is connected to the outside and connected to the water source. The water entering the spray pipe 31 is sprayed through the spray groove 311 to form a water curtain. The sprayed water sprays and rinses the filter cloth 2 of the lower layer. As the filter cloth 2 is conveyed, the spray water can fully cover the surface of the filter cloth 2, effectively washing away the cyanuric acid attached to the filter cloth 2, and the material residue on the filter cloth 2 is promptly removed, avoiding the clogging problem of the filter cloth 2 caused by the accumulation of materials for a long time, which helps to maintain the permeability of the filter cloth 2 and improve the filtering efficiency.

[0057] A discharge channel 13 is also provided in the housing 1 below the filter cloth 2 , one side of the discharge channel 13 is a scraper 131 for scraping off the material on the lower surface of the lower filter cloth 2 , and the other side of the discharge channel 13 is provided with an inclined guide plate 132 for guiding the material into the discharge channel 13 .

[0058] During the clockwise conveying of the filter cloth 2 , the cyanuric acid filtered out from the upper filter cloth 2 gradually falls onto the inclined guide plate 132 when being conveyed to the rightmost end, and then finally falls into the discharge channel 13 .

[0059] Among them, the inclined guide plate 132 is arranged below the spray pipe 31. When the lower filter cloth 2 is sprayed and rinsed through the spray pipe 31, the water that passes through the lower filter cloth 2 will be sprayed on the inclined guide plate 132. On the one hand, it is convenient to flush down the material on the inclined guide plate 132, and on the other hand, it can realize the preliminary washing of the material on the inclined guide plate 132.

[0060] The filter assembly 4 is disposed on the bottom surface of the discharge channel 13 . The filter assembly 4 includes a porous filter plate 41 and a filter layer 42 disposed on the upper surface of the porous filter plate 41 . Specifically, the filter layer 42 may be a filter cloth layer.

[0061] After being initially washed by the spray water, the cyanuric acid enters the discharge channel 13 and is further filtered through the filter assembly 4 .

[0062] The lower part of the filter assembly 4 corresponds to a waste liquid tank, and the sprayed water will eventually fall into the waste liquid tank.

[0063] The reciprocating push plate mechanism 5 is disposed on the filter assembly 4 , and discharge ports 133 are disposed on both sides of the bottom end of the discharge channel 13 . The reciprocating push plate mechanism 5 pushes the material in the discharge channel 13 to be discharged alternately from the two discharge ports 133 .

[0064] Among them, the reciprocating push plate mechanism 5 includes a moving plate 51, the bottom end of the moving plate 51 abuts against the upper surface of the filter assembly 4, moving rods 52 are provided on both sides of the moving plate 51, a slide groove cavity 14 is provided on the side wall of the shell 1, and the moving rod 52 is slidably arranged in the slide groove cavity 14, and a telescopic part 15 that drives the moving rod 52 to reciprocate is provided on the outer wall of the shell 1.

[0065] The telescopic member 15 is specifically a cylinder, and the telescopic action of the cylinder drives the moving rod 52 to reciprocate in the chute cavity 14. The side wall of the housing 1 is formed with slots on both sides of the chute cavity 14, and a connecting member is provided at the top of the telescopic rod of the cylinder, and the connecting member is connected to the side of the moving rod 52 through the slot.

[0066] A convex block is provided on the side of the moving plate 51 , and the convex block is connected to the side of the moving rod 52 through a notch.

[0067] When the cylinder is telescoping, it drives the moving rod 52 to slide in the slide groove cavity 14. When the moving rod 52 slides, it drives the moving plate 51 to move back and forth left and right. When the moving plate 51 moves left and right, it helps to scrape off the cyanuric acid on the upper surface of the filter layer 42 to avoid clogging of the filter layer 42.

[0068] The auxiliary unloading mechanism 6 is disposed in the power cabin 16 , wherein the power cabins 16 are two and are disposed on both sides of the discharge channel 13 .

[0069] The auxiliary unloading mechanism 6 includes an L-shaped plate 61 and a power assembly 62 for driving the L-shaped plate 61 to move. When the L-shaped plate 61 moves, the discharge port 133 adjacent to the L-shaped plate 61 is opened or closed.

[0070] Specifically, the power assembly 62 includes a lead screw 621 and a motor 622 for driving the lead screw 621 to rotate. The motor 622 is fixed to the outer wall of the housing 1 , and the lead screw 621 penetrates the vertical plate of the L-shaped plate 61 through threaded engagement.

[0071] The motor 622 will drive the lead screw 621 to rotate while the motor 622 moves, and the lead screw 621 will drive the L-shaped plate 61 to move left and right while the L-shaped plate 61 moves, and the horizontal plate of the L-shaped plate 61 will open or close the discharge port 133 while the L-shaped plate 61 moves.

[0072] A push plate 63 is provided on one side of the L-shaped plate 61 close to the moving plate 51 , and a spring 64 is provided between the push plate 63 and the vertical plate of the L-shaped plate 61 .

[0073] While the movable plate 51 is moving to push the material, the push plate 63 will cooperate with the movable plate 51 to squeeze the material, so as to squeeze out the moisture in the material.

[0074] A first tooth plate 611 is disposed on the side of the vertical plate of the L-shaped plate 61 opposite to the push plate 63 , and a second tooth plate 631 is disposed on the side of the push plate 63 opposite to the vertical plate of the L-shaped plate 61 .

[0075] A gear shaft 17 is rotatably provided on the inner wall of the housing 1 , and the gear shaft 17 includes complete teeth 171 meshing with the first tooth plate 611 and incomplete teeth 172 meshing with the second tooth plate 631 .

[0076] When the L-shaped plate 61 moves to open the discharge port 133, the first tooth plate 611 will move with it. While the first tooth plate 611 moves, it will drive the gear shaft 17 to rotate by cooperating with the complete teeth 171. During the rotation of the gear shaft 17, the incomplete teeth 172 will intermittently cooperate with the second tooth plate 631. When the incomplete teeth 172 are engaged with the second tooth plate 631, they will drive the push plate 63 to move and compress the spring 64. When the incomplete teeth 172 are not engaged with the second tooth plate 631, the restoring force of the spring 64 will cause the push plate 63 to move to one side of the moving plate 51 and clap with the moving plate 51 to generate vibration, which is more conducive to the smooth discharge of materials.

[0077] The side of the push plate 63 opposite to the moving plate 51 and the two side surfaces of the moving plate 51 are provided with protrusions to prevent the material from adhering during discharge.

[0078] When the device for filtering solid cyanuric acid from the liquid phase is used, the liquid phase material to be filtered enters the shell 1 from the discharge port 11 and is filtered through the upper layer of the filter cloth 2. The cyanuric acid filtered out from the upper filter cloth 2 gradually falls on the inclined guide plate 132 when it is transported to the rightmost end, and then finally falls into the discharge channel 13.

[0079] The water introduced into the spray pipe 31 is sprayed out through the spray slot 311 to form a water curtain. The sprayed water sprays and rinses the filter cloth 2 at the lower layer. At the same time, the sprayed water performs preliminary washing on the materials dropped on the inclined guide plate 132.

[0080] The material after the preliminary washing will fall onto the filter assembly 4 and be filtered therethrough.

[0081] Initially, the moving plate 51 is on the left side, and the materials gradually accumulate and fall between the moving plate 51 and the push plate 63 on the right. After a certain amount of materials accumulate, the moving plate 51 starts to move to the right driven by the cylinder. At first, the push plate 63 will cooperate with the moving plate 51 to squeeze the materials due to the support of the spring 64. Then, as the moving plate 51 pushes and squeezes, the push plate 63 on the right starts to move to the right and compress the spring 64. When the moving plate 51 moves to the left edge of the right discharge port 133, at this time, the L-shaped plate 61 on the right starts to move to the right and opens the corresponding discharge port 133, and the materials are discharged.

[0082] The L-shaped plate 61 drives the push plate 63 to vibrate back and forth while moving, which allows the material to be discharged more smoothly on the one hand, and on the other hand, after the material is discharged, it hits the side of the moving plate 51 to prevent the material from adhering to the side of the moving plate 51.

[0083] When the material is discharged through the discharge port 133 on the right, the filtered material will be accumulated between the moving plate 51 and the push plate 63 on the left. Similarly, the material is discharged through the discharge port 133 on the left.

[0084] A method for filtering solid cyanuric acid from a liquid phase, using the above-mentioned device for filtering solid cyanuric acid from a liquid phase, comprises the following steps: introducing a liquid phase mixture containing solid cyanuric acid into a housing 1 from a feed port 11, and after entering the housing 1, first filtering through an upper layer of a filter cloth 2, the filtered liquid phase downwardly enters a guide chute 12 and is transported to the outside of the housing 1, and the cyanuric acid filtered out of the upper layer of the filter cloth 2 enters a discharge channel 13 through an inclined guide plate 132 as the filter cloth 2 is conveyed.

[0085] When the filter cloth 2 is transferred to the lower layer, the cyanuric acid attached to the outer surface of the filter cloth 2 is washed down into the discharge channel 13 by the cleaning member 3 through the spraying water, and then further scraped off when passing through the scraper 131 .

[0086] The spray water entering the discharge channel 13 is discharged through the filter assembly 4, and the material entering the discharge channel 13 is discharged alternately from the two discharge ports 133 through the action of the reciprocating push plate mechanism 5, so as to realize continuous operation.

[0087] The automated filtering and cleaning process reduces the need for manual intervention, lowers labor intensity, improves the working environment, reduces material accumulation and blockage risks, and facilitates continuous operation.

[0088] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0089] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A device for filtering solid cyanuric acid from a liquid phase, comprising a housing and a filter cloth disposed in the housing and used to filter cyanuric acid from the liquid phase, wherein a feed port is disposed at the top of the housing, and wherein: The filter cloth is in the shape of a long strip and connected end to end to form a closed loop, a conveying roller for driving the filter cloth to be rotated in the shell, a guide chute is provided in the shell below the upper filter cloth and used to guide water out of the shell, a cleaning piece is provided below the guide chute and above the lower filter cloth, a discharge channel is provided below the filter cloth, one side of the discharge channel is a scraper for scraping off the material on the lower surface of the lower filter cloth, and the other side of the discharge channel is provided with an inclined guide plate for guiding the material into the discharge channel, a filter assembly is provided on the bottom surface of the discharge channel, a reciprocating push plate mechanism is provided on the filter assembly, and discharge ports are provided on both sides of the bottom end of the discharge channel, and the material in the discharge channel is pushed to be discharged alternately from the two discharge ports through the action of the reciprocating push plate mechanism; The reciprocating push plate mechanism comprises a moving plate, the bottom end of which abuts against the upper surface of the filter assembly, moving rods are provided on both sides of the moving plate, a slide groove cavity is provided on the side wall of the shell, the moving rod is slidably arranged in the slide groove cavity, and a telescopic member for driving the moving rod to reciprocate is provided on the outer wall of the shell; Both sides of the discharge channel are provided with power cabins, and the power cabins are provided with auxiliary unloading mechanisms cooperating with the moving plates; The auxiliary unloading mechanism includes an L-shaped plate and a power assembly for driving the L-shaped plate to move. When the L-shaped plate moves, the discharge port adjacent to the L-shaped plate opens or closes. A push plate is provided on one side of the L-shaped plate close to the moving plate, and a spring is provided between the push plate and the vertical plate of the L-shaped plate; A first tooth plate is provided on the side of the vertical plate of the L-shaped plate opposite to the push plate, and a second tooth plate is provided on the side of the push plate opposite to the vertical plate of the L-shaped plate; A gear shaft is rotatably provided on the inner wall of the housing, and the gear shaft comprises complete teeth meshing with the first tooth plate and incomplete teeth meshing with the second tooth plate.

2. The device for filtering solid cyanuric acid from a liquid phase according to claim 1, characterized in that The bottom end of the first baffle plate on the side of the feed outlet abuts against the upper surface of the upper filter cloth, and a gap is left between the bottom end of the second baffle plate opposite to the first baffle plate and the upper surface of the upper filter cloth, and the gap forms a feed outlet; The side plate on one side of the diversion chute is correspondingly arranged below the first baffle, and the width between the two side plates of the diversion chute is greater than the width of the discharge port.

3. The device for filtering solid cyanuric acid from a liquid phase according to claim 1, characterized in that The cleaning part comprises a spray pipe, the axial direction of the spray pipe is consistent with the axial direction of the conveying roller, and a spray groove is provided on the lower end surface of the spray pipe; The spray pipe is correspondingly located above the inclined guide plate.

4. The device for filtering solid cyanuric acid from a liquid phase according to claim 1, characterized in that The filter assembly comprises a porous filter plate and a filter layer arranged on the upper surface of the porous filter plate.

5. The device for filtering solid cyanuric acid from a liquid phase according to claim 1, characterized in that The power assembly includes a lead screw and a motor for driving the lead screw to rotate. The motor is fixed on the outer wall of the shell, and the lead screw penetrates the vertical plate of the L-shaped plate through threaded engagement.

6. A method for filtering solid cyanuric acid from a liquid phase, characterized in that The device for filtering solid cyanuric acid from a liquid phase as claimed in claim 1 comprises the following steps: The liquid mixture containing solid cyanuric acid is introduced into the shell from the discharge port, and after entering the shell, it is first filtered through the upper layer of the filter cloth, and the filtered liquid phase enters the diversion chute downward and is transported to the outside of the shell. The cyanuric acid filtered out of the upper layer of the filter cloth passes through the inclined guide plate along with the transmission of the filter cloth and enters the discharge channel; The cyanuric acid attached to the outer surface of the filter cloth is washed down into the discharge channel by the cleaning part through the spray water when the filter cloth is transferred to the lower layer, and then further scraped off when passing through the scraper; The spray water entering the discharge channel is discharged through the filter assembly, and the material entering the discharge channel is discharged alternately from the two discharge ports through the action of the reciprocating push plate mechanism, so as to realize continuous operation.

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