Wastewater treatment equipment containing reaction byproducts and a method for preparing pencil glue

Abstract

This invention relates to the field of wastewater treatment equipment technology, and discloses a wastewater treatment device containing reaction byproducts and a method for preparing pencil glue. The wastewater treatment device includes a flotation machine, two chains symmetrically and rotatably connected to the top of the flotation machine, a cleaning mechanism fixedly connected to one side of the chains, a blocking mechanism fixedly connected to the bottom of the cleaning mechanism, and a scraping mechanism fixedly connected to the top of the cleaning mechanism. The cleaning mechanism includes a fixed block fixedly connected to one side of the chains, an inclined groove formed on the side of the fixed block away from the chains, an inclined rod slidably connected to the inside of the inclined groove, and a filter screen fixedly connected to the side of the inclined rod away from the fixed block. By setting up the blocking mechanism, it is possible to reach underwater to clean scum below the water surface, thoroughly remove scum, and prevent scum from returning to the cleaned water area through the bottom and around the filter screen. It can switch between cleaning scum and filtering particulate matter.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, and in particular to a wastewater treatment device containing reaction byproducts and a method for preparing pencil glue. Background Technology

[0002] Wastewater treatment equipment containing reaction byproducts typically refers to systems designed to treat wastewater containing complex components and recalcitrant organic matter generated during industrial production processes. This type of wastewater often originates from industries such as chemicals, pharmaceuticals, dyes, and pesticides. Its byproducts may include unreacted raw materials, intermediates, catalysts, and harmful substances produced during the reaction process. Similarly, the production of pencil glue also generates wastewater containing reaction byproducts. Specialized equipment is usually required for wastewater purification. A crucial step in this process is the use of an air flotation unit. This unit injects a large number of microbubbles into the wastewater, causing the bubbles to combine with suspended particles in the wastewater, forming a composite of bubbles and solid particles with a density less than water. Under buoyancy, this composite rises to the surface, forming scum, thus achieving solid-liquid separation.

[0003] Traditional dissolved air flotation (DAF) machines are widely used in wastewater treatment processes, but due to limitations in their structure and working principle, they often suffer from several significant problems. For example, traditional DAF machines use a scraper plate that moves across the surface of the wastewater to remove scum. However, because the bottom of the scraper plate cannot penetrate deep enough to reach below the surface, some scum moves downwards during the skimming process, bypasses the scraper plate, and resuspends itself on the surface. This means the scraper plate cannot completely remove the scum, affecting wastewater treatment efficiency. Furthermore, existing scraper plates have a simple structure, only capable of cleaning scum and unable to filter particulate pollutants in the wastewater, limiting the equipment's scope and applicability. After skimming off scum, some scum remains on the surface of the existing DAF scraper plate. With the cyclical movement of the scraper plate, this residual scum is carried back into the water, affecting the purification effect. Summary of the Invention

[0004] Given the limitations of existing technology, such as poor slag removal, insufficient cleaning of foam, and limited functionality that cannot be adjusted to meet different needs, the solution is not yet fully effective.

[0005] Its purpose is to remove scum more thoroughly and reduce residue, while also adjusting for different water qualities.

[0006] The technical solution of the present invention is a wastewater treatment device containing reaction byproducts, including an air flotation machine, two chains symmetrically arranged on the top of the air flotation machine, a cleaning mechanism arranged on one side of the chains that are close to each other, a blocking mechanism arranged at the bottom of the cleaning mechanism, and a scraping mechanism arranged on the top of the purification mechanism.

[0007] The cleaning mechanism includes a fixed block located on one side of the chain that is close to each other, an inclined groove on the side of the fixed block away from the chain, an inclined rod located inside the inclined groove, a filter screen located on the side of the inclined rod away from the fixed block, a screw hole located inside the filter screen, a knob located inside the screw hole, a baffle located at the end of the knob away from the filter screen, two guide holes symmetrically located on both sides of the screw hole, a guide post located inside the guide hole, the end of the guide post away from the filter screen being fixedly connected to the baffle, a spring located on the top of the fixed block, the top and bottom of the spring being fixedly connected to the top of the inclined rod and the top of the fixed block, respectively, and an inclined plate located inside the air flotation machine.

[0008] The blocking mechanism includes an irregular hole at the bottom of the inclined rod, a base plate inside the irregular hole, two driven wheels symmetrically arranged at both ends of the base plate, a driving wheel on the side of the driven wheel away from the base plate, the two ends of the driving wheel being rotatably connected to the irregular hole, a support shaft on the side of the driving wheel away from the driven wheel, a roller at the bottom end of the support shaft, and a tension spring in the middle of the support shaft.

[0009] Furthermore, the scraping mechanism includes a limiting block disposed at the bottom of the fixed block, a circular hole opened inside the limiting block, a crossbar disposed inside the circular hole, two torsion springs symmetrically disposed at both ends of the crossbar, the two ends of the torsion springs being fixedly connected to the circular hole and the crossbar respectively, a soft scraper disposed on the side of the crossbar near the filter screen, a stop block one disposed at the bottom of the limiting block, and a stop block two disposed at both ends of the crossbar.

[0010] Furthermore, the top of the inclined rod is provided with a plate-like protrusion, and the cross-sections of the inclined rod and the inclined groove are matched.

[0011] Furthermore, the limiting block is L-shaped, and a circular groove is opened at the top of the inner wall of the circular hole.

[0012] Furthermore, the two ends of the crossbar are cylindrical, and the length of the cylinder is the same as the length of the circular hole, and the top of the filter screen is a plate without mesh holes.

[0013] Furthermore, the width of the irregular hole matches the width of the support shaft, and the bottom plate has a mesh-like shape.

[0014] Furthermore, the knob has a threaded end near the filter screen and an annular protrusion at the end away from the filter screen.

[0015] Furthermore, a through hole is provided on the inner side of the baffle, and the shape of the through hole matches the center of the knob.

[0016] Another object of the present invention is to provide a method for preparing pencil glue, which aims to produce finished pencil glue products by hot melting.

[0017] To achieve the above objectives, the present invention provides the following technical solution: a method for preparing pencil adhesive, comprising the following steps.

[0018] First, the preparation of pencil glue usually requires the preparation of raw materials such as paraffin wax and stearic acid, which are then mixed in a certain proportion.

[0019] Next, place the mixed raw materials into a heat-resistant container, heat them with a heat source until they are completely melted, and stir them.

[0020] Finally, the melted mixture is gradually cooled until it solidifies into pencil glue. During the preparation of pencil glue, the raw materials are fused together and undergo chemical reactions, producing wastewater containing reaction byproducts. This wastewater needs to be purified using an air flotation machine.

[0021] Furthermore, the preparation method includes mixing the raw materials and heating the mixed raw materials to melt them. Cooling water is required during the curing process of the pencil glue, and flocculants such as polyacrylamide are required during the wastewater treatment.

[0022] Compared with the prior art, the present invention has the following beneficial effects.

[0023] 1. By setting up a cleaning mechanism, it can reach deep underwater to clean up scum below the water surface and completely remove it, preventing scum from returning to the cleaned water area through the bottom filter screen. In addition, the cleaning mechanism has a dual function, switching between cleaning scum and filtering particulate matter. This design ensures the cleanliness of the water surface and avoids the re-suspension of scum, thereby improving the overall sewage treatment effect.

[0024] 2. By setting up a blocking mechanism, these substances can be intercepted during the skimming of scum and particulate matter, preventing them from flowing back into the cleaned water area. This design ensures the thoroughness of the cleaning operation, avoids the redispersion of pollutants, protects the cleanliness of the water body, and improves the efficiency of sewage treatment.

[0025] 3. By setting up a scraping mechanism, the surface of the filter screen can be cleaned. This mechanism can scrape off the residual scum on the filter screen, preventing the accumulation of scum and the potential for re-contamination. Through this cleaning process, the continuous and efficient operation of the filter screen is ensured, while also maintaining the cleanliness of the water body and avoiding the re-release of pollutants. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the air flotation machine of the present invention;

[0027] Figure 2 This is a schematic diagram of the overall structure of the cleaning mechanism of the present invention;

[0028] Figure 3 This is an exploded view of the cleaning mechanism of the present invention;

[0029] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A;

[0030] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point B;

[0031] Figure 6 For the present invention Figure 3 Enlarged structural diagram at point C;

[0032] Figure 7 For the present invention Figure 3 Enlarged structural diagram at point D;

[0033] Figure 8 For the present invention Figure 3 Enlarged structural diagram at point E;

[0034] Figure 9 This is a schematic diagram of the inclined rod and irregular hole structure of the present invention;

[0035] Figure 10 This is a schematic diagram of the overall structure of the knob of the present invention;

[0036] Figure 11 This is a schematic diagram of the connection between the guide post and the baffle of the present invention;

[0037] Figure 12 For the present invention Figure 11 Enlarged structural diagram at point F;

[0038] Figure 13 This is a schematic diagram showing the connection between the fixing block and the limiting block of the present invention.

[0039] In the picture

[0040] 1. Air flotation machine; 2. Chain; 3. Cleaning mechanism; 4. Blocking mechanism; 5. Scraping mechanism; 31. Fixing block; 32. Inclined groove; 33. Inclined rod; 34. Filter screen; 35. Screw hole; 36. Knob; 37. Baffle; 38. Guide hole; 39. Guide post; 310. Spring; 311. Inclined plate; 312. Through hole; 41. Irregular hole; 42. Base plate; 43. Driven wheel; 44. Driving wheel; 45. Support shaft; 46. Roller; 47. Tension spring; 51. Limiting block; 52. Round hole; 53. Crossbar; 54. Torsion spring; 55. Soft scraper; 56. Stop block one; 57. Stop block two. Detailed Implementation

[0041] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] Example 1, referring to Figures 1-13 This is the first embodiment of the present invention, providing a wastewater treatment device containing reaction byproducts, including an air flotation machine 1, two chains 2 symmetrically and rotatably connected to the top of the air flotation machine 1, a cleaning mechanism 3 fixedly connected to one side of the chains 2, a blocking mechanism 4 fixedly connected to the bottom of the cleaning mechanism 3, and a scraping mechanism 5 fixedly connected to the top of the cleaning mechanism 3; the cleaning mechanism 3 includes a fixing block 31 fixedly connected to one side of the chains 2, an inclined groove 32 opened on the side of the fixing block 31 away from the chains 2, an inclined rod 33 slidably connected to the inside of the inclined groove 32, a filter screen 34 fixedly connected to the side of the inclined rod 33 away from the fixing block 31, a screw hole 35 opened on the inside of the filter screen 34, a knob 36 threadedly connected to the inside of the screw hole 35, a baffle 37 rotatably connected to the end of the knob 36 away from the filter screen 34, and two guide holes 3 symmetrically opened on both sides of the screw hole 35. 8. A guide post 39 is slidably connected to the inside of the guide hole 38. The end of the guide post 39 away from the filter screen 34 is fixedly connected to the baffle 37. A spring 310 is fixedly connected to the top of the fixed block 31. The top and bottom of the spring 310 are fixedly connected to the top of the inclined rod 33 and the top of the fixed block 31, respectively. An inclined plate 311 is fixedly connected to the inside of the air flotation machine 1. The blocking mechanism 4 includes a shaped hole 41 opened at the bottom of the inclined rod 33, a base plate 42 rotatably connected to the inside of the shaped hole 41, two driven wheels 43 symmetrically fixedly connected to both ends of the base plate 42, a driving wheel 44 meshing with the driven wheel 43 on the side away from the base plate 42, both ends of the driving wheel 44 rotatably connected to the shaped hole 41, a support shaft 45 fixedly connected to the side of the driving wheel 44 away from the driven wheel 43, a roller 46 rotatably connected to the bottom end of the support shaft 45, and a tension spring 47 fixedly connected to the middle of the support shaft 45.

[0043] Specifically, during wastewater treatment, air bubbles are released from the bottom of the flotation unit 1. These bubbles combine with impurities in the wastewater to form scum that floats on the surface. The chain 2 drives the fixed block 31 and the inclined rod 33 to move towards the inclined plate 311. The inclined rod 33 moves the filter screen 34 and the baffle 37 together, pushing the scum on the surface and throwing it into the scum collection cavity of the flotation unit 1. When the inclined rod 33 is not in contact with the inclined plate 311, its bottom drives the filter screen 34 deeper into the water. During this movement, it cleans up scum below the water surface, preventing it from flowing back into the cleaned water area through the filter screen 34. In addition, the cleaning mechanism 3 has a dual function, capable of switching between cleaning scum and filtering particulate matter. This design ensures both the cleanliness of the water surface and prevents the re-suspension of scum, thereby improving the overall wastewater treatment effect. After the inclined rod 33 contacts and moves with the inclined plate 311, it will rise under the pressure of the inclined plate 311 and drive the filter screen 34 to rise until the scum is lifted out of the water and skimmed off. After the inclined rod 33 contacts the inclined plate 311, the roller 46 will be displaced by the pressure of the inclined plate 311, and at the same time, it will drive the support shaft 45 to move. The support shaft 45 drives the drive wheel 44 to rotate, and the drive wheel 44 drives the base plate 42 to rotate through the driven wheel 43, keeping it in contact with the filter. In the vertical state of the filter screen 34, as the bottom plate 42 rises with the filter screen 34, the mesh shape allows water to flow through while intercepting scum and preventing it from falling back to the water surface. As the chain 2 drives the cleaning mechanism 3 to move, the bottom of the inclined rod 33 will move out of the range of the inclined plate 311. The inclined rod 33 will return to its original position under the action of the spring 310, and the support shaft 45 will return to its original position under the action of the tension spring 47. The support shaft 45 drives the roller 46 and the bottom plate 42 to return to their original positions. By rotating the knob 36, the baffle 37 can be moved. By controlling the movement of the baffle 37, the distance between the baffle 37 and the filter screen 34 can be controlled. When the baffle 37 and the filter screen 34 are in contact with each other, the water flow will be blocked. The water flow can pass through the filter screen 34. In this state, the interception of scum can be achieved to the best effect. When the distance between the filter screen 34 and the baffle 37 increases, the water flow can pass through the filter screen 34 and flow downward under the guidance of the baffle 37. During the process of the water flow passing through the filter screen 34, the suspended particles in the water flow will be intercepted by the filter screen 34. This state is suitable for purifying water bodies with a lot of suspended particles. The blocking mechanism 4 can intercept these substances during the process of skimming off scum and particles, preventing them from flowing back into the cleaned water area with the water flow. This design ensures the thoroughness of the cleaning operation, avoids the redispersion of pollutants, ensures the cleanliness of the water body, and improves the efficiency of sewage treatment.

[0044] Reference Figures 3-9The scraping mechanism 5 includes a limiting block 51 fixedly connected to the bottom of the fixing block 31, a round hole 52 opened inside the limiting block 51, a crossbar 53 rotatably connected inside the round hole 52, two torsion springs 54 symmetrically fixedly connected to both ends of the crossbar 53, the two ends of the torsion springs 54 being fixedly connected to the round hole 52 and the crossbar 53 respectively, a soft scraper 55 fixedly connected to the side of the crossbar 53 near the filter screen 34, a stop block 56 fixedly connected to the bottom of the limiting block 51, and a stop block 57 fixedly connected to both ends of the crossbar 53.

[0045] Specifically, as the filter screen 34 moves upward, it drives the soft scraper 55 to rotate. After the soft scraper 55 rotates to its maximum angle, it stops rotating. As the filter screen 34 continues to move upward, the soft scraper 55 cleans the surface of the filter screen 34 to prevent scum from remaining on the surface of the filter screen 34. During the reset process of the filter screen 34, the force applied to the soft scraper 55 is released, and the soft scraper 55 will rebound and reset under the action of the torsion spring 54, while also throwing off the scum attached to itself. The scraping mechanism 5 can clean the surface of the filter screen 34. This mechanism can scrape off the residual scum on the filter screen 34, preventing the accumulation of scum and the potential for re-contamination. Through this cleaning process, the continuous and efficient operation of the filter screen 34 is ensured, while also maintaining the cleanliness of the water body and preventing the re-release of pollutants.

[0046] Reference Figure 9 and Figure 13 The top of the diagonal bar 33 is provided with a plate-shaped protrusion, and the cross-sections of the diagonal bar 33 and the inclined groove 32 are matched.

[0047] Specifically, the plate-like protrusion at the top of the inclined rod 33 can be connected to the top of the spring 310, the inclined rod 33 can cooperate with the inclined groove 32, and the inclined groove 32 can constrain the movement direction of the inclined rod 33.

[0048] Example 2, refer to Figure 13 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the limiting block 51 is L-shaped and the top of the inner wall of the circular hole 52 has a circular groove.

[0049] Specifically, the circular groove on the inner wall of the circular hole 52 can cooperate with the torsion spring 54 to fix the torsion spring 54. The torsion spring 54 can store force while the crossbar 53 rotates and reset the crossbar 53.

[0050] Reference Figure 3 and Figure 6 The two ends of the crossbar 53 are cylindrical, and the length of the cylinder is the same as the length of the hole 52. The top of the filter screen 34 is a plate without mesh.

[0051] Specifically, the crossbar 53 engages with the round holes 52 at both ends, the plate-shaped top of the filter screen 34 can push the scum on the water surface, and the mesh part of the filter screen 34 can filter the suspended matter below the water surface.

[0052] Reference Figure 7 and Figure 13 The width of the irregular hole 41 matches the width of the support shaft 45, and the bottom plate 42 has a mesh-like shape.

[0053] Specifically, the irregular hole 41 cooperates with the support shaft 45 and constrains the degree of freedom of movement of the support shaft 45. The mesh bottom plate 42 allows water to flow through and intercepts scum and particulate impurities.

[0054] Reference Figure 10 The knob 36 has a threaded end near the filter screen 34 and an annular protrusion at the end away from the filter screen 34.

[0055] Specifically, the knob 36 is connected to the screw hole 35 via a thread and to the baffle 37 via an annular protrusion. When the knob 36 is rotated, it can drive the baffle 37 to move, thereby adjusting the distance between the baffle 37 and the filter screen 34.

[0056] Reference Figure 12 The inner side of the baffle 37 is provided with a through hole 312, and the shape of the through hole 312 matches the middle of the knob 36.

[0057] Specifically, the baffle 37 is connected to the knob 36 through the through hole 312, which can accommodate the knob 36 to rotate inside.

[0058] Example 3, referring to Figures 1-13 The third embodiment of the present invention provides a method for preparing pencil adhesive, comprising the following steps:

[0059] S1. First, the preparation of pencil glue usually requires the preparation of raw materials such as paraffin wax and stearic acid, which are then mixed in a certain proportion.

[0060] S2. Next, put the mixed raw materials into a heat-resistant container, heat them with a heat source until they are completely melted, and stir them.

[0061] S3. Finally, the melted mixture is gradually cooled until it solidifies into pencil glue. During the preparation of pencil glue, the raw materials are fused together and undergo chemical reactions, producing wastewater containing reaction byproducts. The wastewater needs to be purified using an air flotation machine 1.

[0062] S4, the preparation method includes mixing the raw materials and heating the mixed raw materials to melt them. Cooling water is required during the curing process of pencil glue, and flocculants such as polyacrylamide are required during wastewater treatment.

[0063] In summary, according to embodiments 1-2, the working principle of this invention is as follows: When the flotation machine 1 treats wastewater, it releases microbubbles. These bubbles combine with suspended solids in the water to form scum that floats on the surface. The rotating chain 2 drives the fixed block 31 to move, which in turn moves the cooperating inclined rod 33. The inclined rod 33 then moves the filter screen 34. Simultaneously, the filter screen 34 moves, and the knob 36 moves the baffle 37. By controlling the filter screen 34 to move towards the inclined plate 311, the filter screen 34 pushes the scum in the same direction, pushing it into the cavity of the flotation machine 1 that holds the scum. After moving a certain distance towards the inclined plate 311, the bottom of the moving rod contacts the inclined plate 311 and is then squeezed by it. As the pressure rises, the inclined rod 33 moves upward, simultaneously causing the filter screen 34 to move upward. The upward movement of the filter screen 34 lifts the scum out of the water. After the inclined rod 33 contacts the inclined plate 311, the roller 46 is also displaced by the pressure of the inclined plate 311. Simultaneously, the roller 46 moves, causing the support shaft 45 to move. The movement of the support shaft 45 causes the tension spring 47 to store force and rotate the driving wheel 44. The driving wheel 44 then rotates the driven wheel 43, which in turn rotates the bottom plate 42 until the bottom plate 42 rotates to a position where the filter screen 34 is perpendicular. During the process of the filter screen 34 gradually moving upward out of the water, the mesh bottom plate 42 allows water to flow through while intercepting the scum. Simultaneously, the upward movement of the filter screen 34 causes the soft scraper 55 to rotate upward, and the rotation of the soft scraper 55, in turn, causes the crossbar 53 to rotate. As the crossbar 53 rotates, the torsion spring 54 stores force, and the soft scraper 55 rotates to its maximum angle and then stops rotating. At this time, the filter screen 34 continues to move upward. After the soft scraper 55 stops rotating, it will scrape off the scum on the upper surface of the filter screen 34. After the inclined bar 33 moves out of the range of the inclined plate 311 with the rack, the inclined bar 33 is squeezed and contacted. The spring 310 will drive the inclined bar 33 to reset. The inclined bar 33 will drive the filter screen 34 to reset together. During the reset process of the filter screen 34, the force applied to the soft scraper 55 will be contacted. At this time, the torsion spring 54 will drive the soft scraper 55 to reset through the crossbar 53. At the same time as the soft scraper 55 resets, it will throw the scum attached to it into the cavity for collecting scum in the air flotation machine 1. After the roller 46 is no longer squeezed by the inclined plate 311, the tension spring 47 will drive the roller 46 through the support shaft 45. The drive wheel 44 resets, and the drive wheel 44 drives the base plate 42 to reset via the driven wheel 43. After the base plate 42 resets, it contacts the obstruction of scum, allowing the scum to fall along the upper surface of the filter screen 34. When the knob 36 is turned, it can move along the axis of the through hole 312, and at the same time, it drives the baffle 37 to move together. The baffle 37 is constrained by the guide post 39, so it can only move along the axis of the through hole 312. When there are many suspended particles in the sewage, the knob 36 controls the baffle 37 to move away from the filter screen 34. When the filter screen 34 is in use, it will filter the water flowing through the mesh, so that the suspended particles in the water are intercepted. When there is a lot of scum in the sewage, the baffle 37 will press against the filter screen 34, and the water flow will not be able to pass through the mesh of the filter screen 34.Reduce scum from passing through the mesh.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A wastewater treatment device containing reaction byproducts, comprising an air flotation unit (1) and two chains (2) symmetrically arranged on the top of the air flotation unit (1), characterized in that: It also includes a cleaning mechanism (3) located on one side of the chain (2) that is close to each other, and a blocking mechanism (4) located at the bottom of the cleaning mechanism (3); The cleaning mechanism (3) includes a fixed block (31) located on one side of the chain (2) close to each other, an inclined groove (32) on the side of the fixed block (31) away from the chain (2), an inclined rod (33) located inside the inclined groove (32), a filter screen (34) located on the side of the inclined rod (33) away from the fixed block (31), a screw hole (35) located inside the filter screen (34), a knob (36) located inside the screw hole (35), and a baffle (37) located at the end of the knob (36) away from the filter screen (34). Guide holes (38) are symmetrically opened on both sides of the screw hole (35), guide post (39) is set inside the guide hole (38), the end of the guide post (39) away from the filter screen (34) is fixedly connected to the baffle (37), spring (310) is set on the top of the fixed block (31), the top and bottom of the spring (310) are fixedly connected to the top of the inclined rod (33) and the top of the fixed block (31) respectively, and inclined plate (311) is set inside the air flotation machine (1), and scraping mechanism (5) is set on the top of the filter screen (34). The blocking mechanism (4) includes a shaped hole (41) at the bottom of the inclined rod (33), a base plate (42) inside the shaped hole (41), two driven wheels (43) symmetrically arranged at both ends of the base plate (42), a driving wheel (44) arranged on the side of the driven wheel (43) away from the base plate (42), the two ends of the driving wheel (44) being rotatably connected to the shaped hole (41), a support shaft (45) arranged on the side of the driving wheel (44) away from the driven wheel (43), a roller (46) arranged at the bottom end of the support shaft (45), and a tension spring (47) arranged in the middle of the support shaft (45).

2. The wastewater treatment equipment containing reaction byproducts according to claim 1, characterized in that... The scraping mechanism (5) includes a limiting block (51) disposed at the bottom of the fixed block (31), a circular hole (52) opened inside the limiting block (51), a crossbar (53) disposed inside the circular hole (52), two torsion springs (54) symmetrically disposed at both ends of the crossbar (53), the two ends of the torsion springs (54) being fixedly connected to the circular hole (52) and the crossbar (53) respectively, a soft scraper (55) disposed on the side of the crossbar (53) near the filter screen (34), a stop block one (56) disposed at the bottom of the limiting block (51), and a stop block two (57) disposed at both ends of the crossbar (53).

3. The wastewater treatment equipment containing reaction byproducts according to claim 1, characterized in that... The top of the inclined rod (33) is provided with a plate-shaped protrusion, and the cross-sections of the inclined rod (33) and the inclined groove (32) are matched.

4. The wastewater treatment equipment containing reaction byproducts according to claim 2, characterized in that... The limiting block (51) is L-shaped, and the top of the inner wall of the circular hole (52) has a circular groove.

5. The wastewater treatment equipment containing reaction byproducts according to claim 2, characterized in that... The two ends of the crossbar (53) are cylindrical, and the length of the cylinder is the same as the length of the hole (52). The top of the filter screen (34) is a plate without mesh.

6. The wastewater treatment equipment containing reaction byproducts according to claim 1, characterized in that... The width of the irregular hole (41) matches the width of the support shaft (45), and the bottom plate (42) has a mesh-like shape.

7. The wastewater treatment equipment containing reaction byproducts according to claim 1, characterized in that... The knob (36) has a threaded end near the filter screen (34) and an annular protrusion at the end away from the filter screen (34).

8. The wastewater treatment equipment containing reaction byproducts according to claim 1, characterized in that... The baffle (37) has a through hole (312) on its inner side, and the shape of the through hole (312) matches the center of the knob (36).

9. A method for preparing pencil glue, applied to a wastewater treatment device containing reaction byproducts as described in any one of claims 1-8, characterized in that... The process of preparing pencil glue typically involves the following steps: First, it is usually necessary to prepare raw materials such as paraffin wax and stearic acid, and mix them in a certain proportion. Next, place the mixed raw materials into a heat-resistant container, heat it with a heat source until it is completely melted, and stir it. Finally, the melted mixture is gradually cooled until it solidifies into pencil glue. During the preparation of pencil glue, the raw materials are fused together and undergo chemical reactions, producing wastewater containing reaction byproducts. It is necessary to use an air flotation machine (1) to purify the wastewater.

10. The method for preparing pencil adhesive according to claim 9, characterized in that... The preparation method includes mixing the raw materials and heating the mixed raw materials to melt them. Cooling water is required during the curing process of the pencil glue, and flocculants such as polyacrylamide are required during the wastewater treatment.

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