A rubber additive production wastewater treatment device

Abstract

The present application provides a wastewater treatment device for rubber additive production, which belongs to the technical field of wastewater treatment devices, and comprises a scum trough and a wastewater treatment tank, a flocculation tank, a dissolved air tank and a sedimentation tank. Support plates are symmetrically installed on the front and rear side walls of the upper part of the sedimentation tank, and circular tracks are opened on the two support plates. A rotating ring is installed on the right side of the inner part of the circular track, and a sliding block is installed on the circular track. A semi-circular scraper for collecting scum and water is hingedly arranged on the rotating ring; the present application can drive the semi-circular scraper to rotate through the rotating ring, and under the limit of the circular track, the semi-circular scraper collects the scum and directly buckles the scum on the semi-circular scum trough, so as to prevent bubbles on the surface of the scum from being broken and the scum from being deposited on the bottom of the sedimentation tank; the scum can be squeezed into the collection shell by the sliding of the extrusion block on the auger, and concentratedly collected and discharged, so as to prevent the phenomenon of scum reflux caused by excessive scum in the scum trough.

Description

Technical Field

[0001] The present application relates to the technical field of wastewater treatment devices, and in particular to a wastewater treatment device for rubber additive production. Background Art

[0002] Vulcanization accelerator M (rubber additive), namely ammonium dithiocarbamate, is an additive used in the rubber industry. It appears in the form of white or light yellow powder with a special smell. It is easily soluble in water and slightly soluble in alcohol. Rubber additives are suitable for the production of natural rubber, styrene-butadiene rubber and other rubber products, such as tires, tapes, etc., and play an important role in the fields of plastic modification, adhesives and coatings.

[0003] In the operation process of the flotation machine, the scraper device plays a vital role. Its main function is to continuously push the scum accumulated on the water surface to the scum tank for subsequent cleaning and disposal.

[0004] Wastewater from rubber additive production mainly comes from the washing process and filtered mother liquor. In the pretreatment stage of wastewater, the core goal is to remove suspended matter and oil droplets in the wastewater and improve the biodegradability of the wastewater. A large number of tiny bubbles are released under reduced pressure conditions through the flotation machine. These bubbles attach to the suspended matter and oil droplets in the wastewater and use the buoyancy to make them float quickly to the water surface to form scum. The scum gathered on the water surface is pushed to the scum tank by a scraper to achieve solid-liquid separation.

[0005] Referring to the Chinese patent application document with publication number CN118929827A, entitled A flotation machine defoamer, the scraper includes a scraper, a scraper plate and a scum collecting tank, a defoaming impeller and a scum discharge hole. The scraper is provided with a scraper plate, which can bring scum and bubbles into the scum collecting tank. The scraper plate contacts the scraper plate, making the scum collecting tank a semi-closed structure. When in use, the scraper plate is first used to bring the scum and bubbles into the scum collecting tank. The defoaming impeller in the scum collecting tank rotates to push the scum into the scum discharge hole. At the same time, the foam on the scum in the scum collecting tank is defoamed. Defoaming and scum discharge are performed simultaneously, which can improve work efficiency.

[0006] Referring to the above technical solution, the scum wrapped in bubbles floats on the water surface. When a scraper is used to push the scum wrapped in bubbles to a collecting tank, the moment the scraper contacts the scum wrapped in bubbles and when the scraper moves, it is easy to cause the suspended layer on the water surface to shake, and the bubbles on the surface of the suspended matter are easy to fall off and lose buoyancy support, which makes it easy for the density of the suspended matter to increase and sink to the bottom; at the same time, when an impeller is used to push the scum inside the collecting tank to one side, the scum is easy to remain on the surface of the impeller during the rotation of the impeller, and when the impeller contacts the floating water surface, the scum is easy to reflux. Summary of the invention

[0007] In view of this, the present application provides a rubber additive production wastewater treatment device, which is mainly used to solve the problem of partial scum sinking to the bottom and scum backflow.

[0008] In order to solve the above-mentioned technical problems, the present application provides a rubber additive production wastewater treatment device, including a scum trough and a wastewater treatment tank, the wastewater treatment tank is composed of a flocculation tank, a dissolved air tank and a sedimentation tank from left to right in sequence, support plates are symmetrically installed on the front and rear side walls of the upper part of the sedimentation tank, and circular tracks are opened on the two support plates, a rotating ring is installed on the inner right side of the circular track, a sliding block is installed on the circular track, a semi-circular scraper for collecting scum and water is hingedly arranged on the rotating ring, the outer side wall of the semi-circular scraper is fixedly connected to the sliding block, the scum trough is arranged as a semi-circular ring, the scum trough is fixedly installed on the support plate and passes through the rotating ring, an auger located inside the scum trough is arranged between the two support plates, an extrusion block is slidably installed on the auger, and a collecting shell is installed at both ends of the scum trough, and the collecting shell is provided with a slag discharge port and a slag discharge door.

[0009] By adopting the above technical scheme, the scum inside the flocculation tank enters the dissolved air tank, and the bubbles generated inside the dissolved air tank can wrap the scum and make the scum float on the water surface and enter the sedimentation tank, and the scum floats finally on the water surface of the sedimentation tank; the circular track can limit the movement of the semi-circular scraper, so that the semi-circular scraper rotates around the hinge between the semi-circular scraper and the rotating ring, and the lower half of the semi-circular scraper rotates to the bottom, and as the semi-circular scraper continues to rotate, the scum on the water surface can be gathered in the semi-circular scraper, and as the semi-circular scraper continues to rotate, it can be buckled on the scum trough, and the scum is concentrated in the scum trough; during the rotation of the auger, the extrusion block can be driven to slide from one end of the auger to the other end, and the extrusion block can concentrate the scum at one end of the scum trough and discharge it from the slag discharge port in time to prevent excessive scum in the scum trough from causing scum reflux.

[0010] Optionally, a blowing valve is provided on the collecting shell.

[0011] By adopting the above technical solution, the air blowing valve can blow air into the interior of the collecting shell, which can speed up the discharge of the scum when the scum is discharged.

[0012] Optionally, a drain port is provided on the collecting shell, and a reflux pipe is connected to the drain port for draining water back to the flocculation tank.

[0013] By adopting the above technical solution, the water inside the scum tank can be discharged from the drain outlet and returned to the flocculation tank through the reflux pipe to filter part of the sewage again.

[0014] Optionally, a telescopic cylinder for controlling the switch of the slag discharge door is provided on the outer side wall of the wastewater treatment tank, and the piston rod of the telescopic cylinder is hinged to the slag discharge door.

[0015] By adopting the above technical solution, the telescopic cylinder can drive the slag discharge door to open or close through the extension and retraction of the piston rod.

[0016] Optionally, a support base for supporting the end shaft of the auger is provided on the support plate.

[0017] By adopting the above technical solution, the support base can enhance the stability of the auger.

[0018] Optionally, the extrusion block is configured as a cylindrical block, a through groove penetrating the auger shaft is provided on the cylindrical block, auger grooves for the auger blades to penetrate are provided on both planes of the cylindrical block, and a protrusion is provided on the cylindrical block, which is slidably connected to the slag groove.

[0019] By adopting the above technical solution, during the rotation of the auger blade, due to the sliding connection between the protrusion and the scum groove, the extrusion block can be driven to slide horizontally back and forth in the scum groove.

[0020] Optionally, a rubber ring is arranged around the extrusion block.

[0021] By adopting the above technical solution, the rubber ring has a sealing function, and can make the water and scum enter the collection shell at one end of the auger when the squeezing block pushes the scum and water to move.

[0022] Optionally, a driving ring is fixedly connected to the inner walls of the two rotating rings, and a connecting rod is installed between the two driving rings. The connecting rod is used to drive the two driving rings to rotate simultaneously and to abut against the outer wall of the semicircular scraper.

[0023] By adopting the above technical solution, the driving ring is rotated by an externally connected driving source. Under the connection of the connecting rod, the driving ring can drive the rotating rings at both ends to rotate. At the same time, under the limit of the connecting rod, the semi-circular scraper can be flush with the semi-circular scum groove.

[0024] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The circular movement of the semicircular scraper can make the scum on the water surface flow into the scum tank together with part of the sewage. When the scum enters the inner wall of the semicircular scraper, even if the bubbles burst, the semicircular structure of the semicircular scraper can prevent the scum inside the semicircular scraper from sinking to the bottom. Compared with the traditional scraper that pushes the scum on the water surface to move, it can timely prevent the bubble bursting and the scum sinking to the bottom, which can improve work efficiency.

[0026] 2. Through the extrusion block and the auger, the scum inside the scum tank can be pushed to one side and discharged in time. Compared with the traditional scum tank collecting scum, it can prevent the scum inside the scum tank from being too much and causing the scum to flow back to the sedimentation tank again, thus ensuring work efficiency and quality.

[0027] 3. By setting up the reflux pipe, the water inside the scum tank can be discharged in time and returned to the flocculation tank for re-filtration to ensure the effect of wastewater pretreatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of a rubber additive production wastewater treatment device for this application;

[0029] Figure 2 This is a schematic diagram of the structure of the semicircular scraper and auger of this application;

[0030] Figure 3 Exploded views of the assembly, drive ring, dross trough, and extrusion block were collected for this application;

[0031] Figure 4 A schematic diagram of the structure of the collection shell, blow valve and drain port for this application;

[0032] Figure 5 This is a schematic diagram of the structure of the extrusion block of this application.

[0033] Explanation of the reference numerals: 1. wastewater treatment tank; 11. flocculation tank; 12. dissolved air tank; 13. sedimentation tank; 2. collecting assembly; 21. support plate; 22. circular track; 23. rotating ring; 24. sliding block; 25. semicircular scraper; 26. scum trough; 3. slag discharge assembly; 31. auger; 311. supporting base; 32. extrusion block; 321. through groove; 322. auger groove; 323. protrusion; 33. collecting shell; 34. slag discharge door; 35. air blow valve; 36. telescopic cylinder; 37. rubber ring; 4. reflux assembly; 41. drain outlet; 42. reflux pipe; 5. driving ring; 6. connecting rod. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figure 1-Figure 5 , the technical scheme of the embodiment of the present application is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0035] Reference Figure 1 , Figure 2 and Figure 3The present embodiment provides a wastewater treatment device for rubber additive production, comprising a wastewater treatment tank 1, a collection component 2, a slag discharge component 3 and a reflux component 4. The wastewater treatment tank 1 is provided with a collection component 2 for collecting scum, the collection component 2 comprises a scum groove 26, the scum groove 26 is provided with a slag discharge component 3 for discharging scum, and the outer wall of the wastewater treatment tank 1 is provided with a reflux component 4 connected with the slag discharge component 3.

[0036] The wastewater treatment tank 1 is provided with a partition plate, which divides the wastewater treatment tank 1 into a flocculation tank 11, a gas dissolving tank 12 and a sedimentation tank 13, and the three are arranged from left to right. The collection assembly 2, the slag discharge assembly 3 and the reflux assembly 4 are all arranged at the upper part of the sedimentation tank 13.

[0037] When in use, firstly, the waste water is stirred inside the flocculation tank 11 to condense the scum in the waste water into particles, and the granular scum enters the bottom of the dissolved air tank 12. The bubbles generated at the bottom of the dissolved air tank 12 wrap the scum, so that the waste scum floats on the water surface and enters the sedimentation tank 13 to float on the water surface of the sedimentation tank 13.

[0038] Reference Figure 2 and Figure 3 The collecting assembly 2 includes a supporting plate 21 , a circular track 22 , a rotating ring 23 , a sliding block 24 , a semicircular scraper 25 and a scum trough 26 . The supporting plates 21 are provided in two numbers and are symmetrically mounted on the front and rear side walls of the upper part of the sedimentation tank. The circular track 22 is provided on the supporting plates 21. The rotating ring 23 is mounted on the right side inside the circular track 22. The sliding block 24 is slidably mounted on the circular track 22. The outer wall of the semicircular scraper 25 is fixedly connected to the sliding block 24. The symmetrical parts on the outer wall of the semicircular scraper 25 connected to the sliding block 24 are hingedly arranged with the rotating ring 23 through an axis. The rotating ring 23 can drive the semicircular scraper 25 to slide around the circular track 22 during rotation. The scum groove 26 is fixedly mounted between the two supporting plates 21 and passes through the rotating ring 23. The scum groove 26 is provided in a semicircular ring shape. When the semicircular scraper 25 rotates around the hinge driven by the rotating ring 23, the semicircular scraper 25 can be buckled on the scum groove 26 under the limit of the circular track 22.

[0039] A driving ring 5 is fixedly mounted on the inner wall of the rotating ring 23, and a connecting rod 6 is arranged between the two driving rings 5. When the semicircular scraper 25 and the opening of the semicircular scum groove 26 are on the same horizontal plane, the connecting rod 6 abuts against the right side of the semicircular scraper 25, which can ensure that when the rotating ring 23 rotates, the semicircular scraper 25 is driven to rotate around the hinge, and at the same time, under the limit of the circular track 22, the semicircular scraper 25 can be buckled on the scum groove 26.

[0040] When in use, the driving ring 5 is first driven to rotate around its own axis by an external driving source, and the driving ring 5 drives the rotating ring 23 to rotate synchronously. Under the abutment of the connecting rod 6 and the limitation of the circular track 22, when the semi-circular scraper 25 rotates to a vertical downward position, the lower half of the semi-circular scraper 25 extends into the water. As the semi-circular scraper 25 rotates clockwise, it extends out of the water and gathers the scum on the water surface in the semi-circular scraper 25. At this time, the semi-circular scraper 25 and the opening of the semi-circular scum groove 26 are in the same horizontal plane, so that the semi-circular scraper 25 continues to rotate until the semi-circular scraper 25 is engaged on the scum groove 26, and the scum falls from the inside of the semi-circular scraper 25 to the scum groove 26.

[0041] Reference Figure 3 and Figure 5 The slag discharge assembly 3 includes an auger 31, a support base 311, an extrusion block 32 and a rubber ring 37. The auger 31 is installed between the two support plates 21 and is located inside the scum tank 26. The auger 31 is driven by an externally connected driving source. The support plate 21 is provided with a support base 311 for supporting both ends of the auger 31. The auger 31 is provided with an extrusion block 32 for squeezing the scum and water inside the scum tank 26. The extrusion block 32 is provided with a rubber ring 37. The rubber ring 37 has a certain sealing property. When the extrusion block 32 pushes the scum to be squeezed, a certain sealing property can be ensured, and the scum and water are pushed to one end of the scum tank 26.

[0042] The extrusion block 32 is configured as a cylindrical block, on which a through groove 321 is provided, the through groove 321 being coaxial with the cylindrical block, two auger grooves 322 being provided, respectively provided on two planes of the cylindrical block, the protrusion 323 being fixedly mounted on the cylindrical block, the inner wall of the scum groove 26 being provided with a groove, the protrusion 323 sliding back and forth inside the groove, which can prevent the extrusion block 32 from rotating, and ensure that the extrusion block 32 slides back and forth in the scum groove 26 driven by the auger 31.

[0043] Reference Figure 1 and Figure 4 The slag discharge assembly 3 also includes a collecting shell 33, a slag discharge door 34, an air blow valve 35 and a telescopic cylinder 36. The collecting shell 33 is provided with two sleeves at both ends of the slag trough 26, and a slag discharge port is provided on the collecting shell 33, and a slag discharge door 34 is installed at the slag discharge port. The air blow valve 35 is installed on the top of the collecting shell 33 to accelerate the discharge of slag. The telescopic cylinder 36 is installed on the outer wall of the wastewater treatment tank 1, and the piston rod of the telescopic cylinder 36 is hinged to the slag discharge door 34.

[0044] When in use, after the semicircular scraper 25 is buckled on the scum groove 26, the driving ring 5 stops rotating, and the external driving source is started to drive the auger 31 to rotate. The extrusion block 32 on the auger 31 moves from one end of the auger 31 to the other end, pushing the scum and water inside the scum groove 26 to move into the collecting shell 33 at one end, and the scum discharge door 34 is opened by controlling the telescopic cylinder 36, and the blowing valve 35 is started to blow air into the collecting shell 33 to accelerate the discharge of the scum.

[0045] Reference Figure 2 and Figure 4 The reflux assembly 4 includes a drain port 41 and a reflux pipe 42. The drain port 41 is opened at the top of the collection shell 33, and the reflux pipe 42 is connected between the drain port 41 and the flocculation tank 11, so that the wastewater in the scum tank 26 flows from the reflux pipe 42 to the inside of the flocculation tank 11, and the wastewater is filtered again.

[0046] The implementation principle of a rubber additive production wastewater treatment device in the present application embodiment is:

[0047] When the device is used, the scum with bubbles in the dissolved air tank 12 continuously flows to the sedimentation tank 13, and most of the scum floating on the water surface of the sedimentation tank 13 will gather on one side of the scum groove 26. The driving ring 5 is started to drive the rotating ring 23 to rotate, and the semi-circular scraper 25 rotates clockwise under the contact of the connecting plate. When the semi-circular scraper 25 rotates to a vertical downward position, the lower half of the semi-circular scraper 25 extends into the water. As the semi-circular scraper 25 rotates clockwise, it extends out of the water surface and gathers the scum on the water surface into the semi-circular scraper 25. At this time, the semi-circular scraper 25 and the opening of the semi-circular scum groove 26 are in the same horizontal plane, so that the semi-circular scraper 25 continues to rotate until the semi-circular scraper 25 is buckled on the scum groove 26, and the scum falls from the inside of the semi-circular scraper 25 into the scum groove 26, and the rotation of the driving ring 5 is stopped;

[0048] Then, the external driving source is started to drive the auger to rotate, and the extrusion block 32 on the auger 31 moves from one end of the auger 31 to the other end. The water inside the scum trough 26 flows into the flocculation tank 11 through the drainage hole and the return pipe 42, and the scum in the collection shell 33 is discharged from the slag discharge port in time by opening the slag discharge door 34.

[0049] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A rubber additive production wastewater treatment device, comprising a scum tank (26) and a wastewater treatment tank (1), wherein the wastewater treatment tank (1) is composed of a flocculation tank (11), a dissolved air tank (12) and a sedimentation tank (13) from left to right, characterized in that: Support plates (21) are symmetrically mounted on the front and rear side walls of the upper part of the sedimentation tank (13), and circular tracks (22) are provided on both support plates (21). A rotating ring (23) is mounted on the right side of the circular track (22), and a sliding block (24) is mounted on the circular track (22). A semicircular scraper (25) for collecting scum and water is hingedly mounted on the rotating ring (23), and the outer side wall of the semicircular scraper (25) is fixedly connected to the sliding block (24). The scum groove (26) is arranged in the form of a semicircular ring, and the scum groove (26) is fixedly mounted on the support plate (21) and penetrates the rotating ring (23); An auger (31) located inside the slag trough (26) is provided between the two support plates (21), an extrusion block (32) is slidably mounted on the auger (31), and a collection shell (33) is sleeved and mounted at both ends of the slag trough (26), and the collection shell (33) is provided with a slag discharge port and a slag discharge door (34); The extrusion block (32) is configured as a cylindrical block, a through groove (321) penetrating the auger shaft is provided on the cylindrical block, auger grooves (322) for the auger blades to penetrate are provided on two planes of the cylindrical block, and a convex block (323) is provided on the cylindrical block, and the convex block (323) is slidably connected to the scum groove (26); A driving ring (5) is fixedly connected to the inner walls of the two rotating rings (23), and a connecting rod (6) is installed between the two driving rings (5). The connecting rod (6) is used to drive the two driving rings (5) to rotate simultaneously and to abut against the outer wall of the semicircular scraper (25).

2. A rubber additive production wastewater treatment device according to claim 1, characterized in that: The collecting shell (33) is provided with an air blowing valve (35).

3. A rubber additive production wastewater treatment device according to claim 2, characterized in that: The collecting shell (33) is provided with a drainage port (41), and the drainage port (41) is connected to a return pipe (42) for draining water back to the flocculation tank (11).

4. A rubber additive production wastewater treatment device according to claim 3, characterized in that: A telescopic cylinder (36) for controlling the opening and closing of a slag discharge door (34) is arranged on the outer side wall of the wastewater treatment pool (1); a piston rod of the telescopic cylinder (36) is hingedly connected to the slag discharge door (34).

5. A rubber additive production wastewater treatment device according to claim 1, characterized in that: The support plate (21) is provided with a support base (311) for supporting the end shaft of the auger (31).

6. A rubber additive production wastewater treatment device according to claim 1, characterized in that: The extrusion block (32) is surrounded by a rubber ring (37).

Images