Sludge treatment device for product processing

Abstract

The invention relates to the technical field of sludge treatment, in particular to a product processing sludge treatment device which comprises a dewatering box, a roller is rotationally arranged at the upper end of the inner side of the dewatering box, the roller is filled with sludge, a plurality of meshes are formed in the outer portion of the roller, and transmission shafts are connected to the two ends of the roller; the stepping motor is installed outside the dewatering box, two round pipes are symmetrically installed at the bottom of the dewatering box, an oxidation pipe is slidably arranged between the two round pipes, and the oxidation pipe is filled with oxidizing substances and used for oxidizing harmful substances in sewage. The sewage obtained after separation is subjected to independent oxidation treatment, but in the process, an oxidizing agent preferentially attacks phenolic hydroxyl groups, so that after sulfide is degraded, the overall degradation rate is reduced by 40-60%, and therefore, according to the equipment, the sulfide is treated through sulfate firstly, then an anti-aging agent is oxidized through the oxidizing agent, and the overall degradation rate is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of sludge treatment, and particularly relates to a sludge treatment device for product processing. Background Art

[0002] During the process of rubber production, sludge is not directly generated, but sludge is generated during the spraying process in the spray tower. The sewage and impurities in the sludge need to be dehydrated and then the water and impurities are treated separately. The dehydrated impurities need to be incinerated, and the separated water is subjected to oxidation treatment.

[0003] There is a prior art with a publication number of CN102503058B and a name of a complete set of sludge treatment equipment, which includes a sludge to be treated metering and feeding device, a stirring and modification device, a metering and feeding device, a heating, sterilizing and deodorizing device, a transfer tank, a metering and pumping device I, a dehydration device I, a liquid tank, a dehydration device II, a metering water supply device, a medicament A metering and feeding device, a medicament B metering and feeding device, a medicament C metering and feeding device, a metering and pumping device II, and an exhaust gas collection and treatment device. Using the complete set of sludge treatment equipment, the treatment process time is short; the treatment process is environmentally friendly and there is no secondary pollution; the energy consumption during the treatment process is low and the cost is low; the obtained dry sludge and heavy metal slag can be comprehensively utilized.

[0004] In the above prior art, the obtained dry sludge and heavy metal slag by using the complete set of sludge treatment equipment can be comprehensively utilized. During the actual rubber production process, the separated sewage contains a large amount of harmful substances, such as vulcanization accelerators and antioxidants, and these chemicals need to be treated separately. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a sludge treatment device for product processing.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions: Design a sludge treatment device for product processing, including a dehydration tank: A drum is rotatably arranged at the upper inner side of the dehydration tank, and sludge is filled in the drum. A plurality of mesh holes are arranged on the outer part of the drum. Both ends of the drum are connected with transmission shafts, and a stepping motor is installed outside the dehydration tank, and one of the transmission shafts is connected with the output shaft of the stepping motor; Two circular tubes are symmetrically installed at the bottom of the dehydration tank, and an oxidation tube is slidably arranged between the two circular tubes, and the oxidation tube is filled with an oxidizing substance for oxidizing harmful substances in the sewage.

[0007] Preferably, air filling pipes are installed at the end parts of the circular tubes, the air filling pipes extend to the outside of the dehydration tank, and the end parts of the air filling pipes are communicated with an air pump.

[0008] Preferably, a partition is installed in the middle position inside the oxidation tube. The inside of the oxidation tube is divided into two independent spaces by the partition. Feeding pipes are arranged at the upper parts of the oxidation tubes on both sides of the partition, and valves are arranged on the feeding pipes. First liquid leakage holes and second liquid leakage holes are respectively formed at the lower parts of the oxidation tubes on both sides of the partition.

[0009] Preferably, when the first liquid leakage hole is located inside the oxidation tube, the second liquid leakage hole is located outside the oxidation tube; when the first liquid leakage hole is located outside the oxidation tube, the second liquid leakage hole is located inside the oxidation tube.

[0010] Preferably, valve plates are slidably arranged at positions near both ends inside the oxidation tube. One side of each valve plate is connected to the end position of the oxidation tube through a guide rod, and the outer wall of the oxidation tube is in close fit with the inner wall of the circular tube.

[0011] Preferably, a transmission member is arranged at one end of the transmission shaft, and the transmission members are symmetrically arranged on both sides inside the dehydration tank.

[0012] Preferably, the transmission member includes two transmission gears. A chain is sleeved outside the two transmission gears. Blades are arranged on the links of the chain. A rotating shaft is installed at one end of the transmission gear, and one end of the rotating shaft is rotatably arranged inside the dehydration tank.

[0013] Preferably, the two lower transmission gears are connected by a circular shaft, and a gap is arranged between the circular shaft and the lower oxidation tube.

[0014] Preferably, two connecting plates are symmetrically arranged on the side wall of the dehydration tank below the roller. The two connecting plates are both arranged obliquely downward, and a plurality of slot holes are arranged on the inclined surfaces of the upper parts of the connecting plates.

[0015] Preferably, a water outlet pipe is installed at the bottom of the dehydration tank, and a valve assembly for controlling its opening and closing is arranged on the water outlet pipe.

[0016] A sludge treatment device for product processing proposed by the present invention has the beneficial effects that: for the sludge treatment device for product processing, the separated sewage is subjected to separate oxidation treatment. However, in this process, the oxidant will preferentially attack the phenolic hydroxyl group, resulting in a 40 - 60% decrease in the overall degradation rate after the degradation of sulfide. Therefore, this device first treats sulfide with sulfate, and then uses an oxidant to oxidize the antioxidant to improve the overall degradation rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a sludge treatment device for product processing proposed by the present invention.

[0018] Figure 2 This is a schematic structural diagram of another perspective of a sludge treatment device for product processing proposed by the present invention.

[0019] Figure 3 This is a schematic structural diagram of a transmission member of a sludge treatment device for product processing proposed by the present invention.

[0020] Figure 4 This is a schematic structural diagram of a connecting plate of a sludge treatment device for product processing proposed by the present invention.

[0021] Figure 5 This is a schematic internal structure diagram of an oxidation tube of a sludge treatment device for product processing proposed by the present invention.

[0022] Figure 6 is Figure 5 a front view of the structure of a sludge treatment device for product processing proposed.

[0023] In the figure: dehydration tank 1, drum 2, transmission shaft 3, slot holes 4, connecting plate 5, blades 6, round tube 7, oxidation tube 8, gas charging pipe 9, chain 10, rotating shaft 11, round shaft 12, transmission teeth 13, stepping motor 14, water outlet pipe 15, valve plate 16, first liquid leakage hole 17, partition plate 18, second liquid leakage hole 19, feeding pipe 20, guide rod 21. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] Refer to Figure 1-2 , a sludge treatment device for product processing, including a dehydration tank 1. A drum 2 is rotatably arranged at the upper inner side of the dehydration tank 1, and sludge is filled in the drum 2. A number of mesh holes are arranged on the outside of the drum 2. Transmission shafts 3 are connected to both ends of the drum 2. A stepping motor 14 is installed outside the dehydration tank 1. One of the transmission shafts 3 is connected to the output shaft of the stepping motor 14. A water outlet pipe 15 is installed at the bottom of the dehydration tank 1, and a valve assembly for controlling its opening and closing is arranged on the water outlet pipe 15.

[0026] Refer to Figure 5-6, two circular tubes 7 are symmetrically installed at the bottom of the dehydration tank 1. An oxidation tube 8 is slidably arranged between the two circular tubes 7, and the oxidation tube 8 is filled with an oxidizing substance for oxidizing harmful substances in the sewage. Inflatable tubes 9 are installed at the end positions of the circular tubes 7. The inflatable tubes 9 extend to the outside of the dehydration tank 1, and the ends of the inflatable tubes 9 are connected to an air pump. A partition plate 18 is installed at the middle position inside the oxidation tube 8. The interior of the oxidation tube 8 is divided into two independent spaces by the partition plate 18. Feeding pipes 20 are arranged at the upper parts of the oxidation tube 8 on both sides of the partition plate 18, and valves are arranged on the feeding pipes 20. A first liquid leakage hole 17 and a second liquid leakage hole 19 are respectively opened at the lower parts of the oxidation tube 8 on both sides of the partition plate 18. When the first liquid leakage hole 17 is located inside the oxidation tube 8, the second liquid leakage hole 19 is located outside the oxidation tube 8. When the first liquid leakage hole 17 is located outside the oxidation tube 8, the second liquid leakage hole 19 is located inside the oxidation tube 8.

[0027] Valve plates 16 are slidably arranged at the positions near both ends inside the oxidation tube 8. One side of the valve plate 16 is connected to the end position of the oxidation tube 8 through a guide rod 21, and the outer wall of the oxidation tube 8 is in close contact with the inner wall of the circular tube 7.

[0028] A number of holes are presented on the outside of the drum 2. The drum 2 is driven by a stepping motor 14 to rotate. At the same time, a pipeline capable of feeding materials is arranged on the drum 2. Secondly, a box door is arranged on one side of the dehydration tank 1. After the box door is closed, a closed space is formed inside the dehydration tank 1. When the drum 2 rotates at a low speed, the water contained in the sludge can be dehydrated, and small-particle impurities fall together with the sewage.

[0029] Inflatable tubes 9 are arranged at both ends of the circular tube 7 to inflate the inflatable tubes 9 on both sides respectively. In this way, the oxidation tube 8 can move horizontally between the two circular tubes 7. After experiments, it is found that there are two harmful substances in the sewage produced by rubber production, namely antioxidant and vulcanization accelerator. After the oxidant and iron salt solution are simultaneously put into the sewage, the oxidant will preferentially attack the phenolic hydroxyl group, resulting in a significant decrease in the degradation rate of sulfide.

[0030] Therefore, a partition plate 18 is arranged at the middle position inside the oxidation tube 8 to divide the inside of the oxidation tube 8 into two independent spaces. Oxidant and iron salt solution are respectively filled in these two spaces. Initially, the iron salt solution is released, and the iron salt solution enters the dewatering tank 1 through the second liquid leakage hole 19. At this time, the first liquid leakage hole 17 is located inside one side circular tube 7, and the oxidant cannot be introduced into the dewatering tank 1 through the first liquid leakage hole 17. After the reaction proceeds for a period of time, by moving the position of the oxidation tube 8, the second liquid leakage hole 19 enters the other side circular tube 7, and the first liquid leakage hole 17 disengages from the original circular tube 7, and the oxidant inside it is introduced into the dewatering tank 1 through the first liquid leakage hole 17, starting the treatment of the antioxidant by the oxidant in the second stage. And the oxidation tube 8 is located below the liquid level of the sewage. In this way, the chemical oxidants introduced in different stages can quickly diffuse in the sewage.

[0031] Reference Figure 3 , a transmission member is arranged at one end of the transmission shaft 3, and the transmission members are symmetrically arranged on both sides inside the dewatering tank 1. The transmission member includes two transmission gears 13. A chain 10 is sleeved outside the two transmission gears 13. Blades 6 are arranged on the links of the chain 10. One end of the transmission gear 13 is provided with a rotating shaft 11, and one end of the rotating shaft 11 is rotatably arranged inside the dewatering tank 1. The two lower transmission gears 13 are connected by a round shaft 12, and there is a gap between the round shaft 12 and the lower oxidation tube 8.

[0032] Since the area between the two connecting plates 5 is the area where the sewage falls, some uncollected sludge will accumulate directly below the two connecting plates 5. After these sludge accumulates, it will cause the chemicals to not fully contact with the sludge and sewage.

[0033] Therefore, the transmission gear 13 on one side of the roller 2 can drive the chain 10 to move. Blades 6 are arranged on the links of the chain 10. During the rotation of the blades 6, the sludge below can be transferred to a distance, making these sludge in a suspended state in the sewage. This can not only effectively solve the problem that the sludge accumulates below the dewatering tank 1 and hinders the movement of the oxidation tube 8, but also effectively improve the reaction rate.

[0034] Refer to Figure 4 , two connecting plates 5 are symmetrically arranged on the side wall of the dewatering tank 1 below the roller 2. The two connecting plates 5 are both inclined downward. A number of slot holes 4 are arranged on the upper inclined surface of the connecting plate 5. During the rotation of the roller 2, small particle sludge will be scattered on the lower connecting plate 5. The small particle sludge and sewage slide down along the connecting plate 5 to the bottom of the dewatering tank 1. During this process, slot holes 4 are arranged on the upper part of the connecting plate 5, and the sludge will enter the slot holes 4, and the slot holes 4 collect part of the small particle sludge.

[0035] The working principle of this device is: The exterior of the drum 2 presents several holes. The drum 2 is driven by a stepper motor 14 to rotate. At the same time, a pipe capable of replenishing materials is provided on the drum 2. Secondly, a door is provided on one side of the dewatering tank 1. After the door is closed, a closed space is formed inside the dewatering tank 1. When the drum 2 rotates at a low speed, the water contained in the sludge can be removed, and small particulate impurities fall together with the sewage.

[0036] During the rotation of the drum 2, small particulate sludge will be scattered on the lower connecting plate 5. The small particulate sludge and sewage slide down along the connecting plate 5 to the bottom of the dewatering tank 1. During this process, a slot hole 4 is provided on the upper part of the connecting plate 5, and the sludge will enter the slot hole 4, and the slot hole 4 collects part of the small particulate sludge.

[0037] Both ends of the round tube 7 are provided with inflatable tubes 9 to inflate the inflatable tubes 9 on both sides respectively. In this way, the oxidation tube 8 can move horizontally between the two round tubes 7. After experiments, it is found that there are two harmful substances in the sewage produced by rubber production, namely antioxidant and vulcanization accelerator. After the oxidant and iron salt solution are simultaneously put into the sewage, the oxidant will preferentially attack the phenolic hydroxyl group, resulting in a significant decrease in the degradation rate of sulfide.

[0038] Therefore, a partition plate 18 is provided at the middle position inside the oxidation tube 8 to divide the inside of the oxidation tube 8 into two parts, forming two independent spaces, and an oxidant and an iron salt solution are filled in these two spaces respectively. Initially, the iron salt solution is released, and the iron salt solution enters the dewatering tank 1 through the second liquid leakage hole 19. At this time, the first liquid leakage hole 17 is located inside one of the round tubes 7, and the oxidant cannot be introduced into the dewatering tank 1 through the first liquid leakage hole 17. After the reaction proceeds for a period of time, by moving the position of the oxidation tube 8, the second liquid leakage hole 19 enters the other round tube 7, and the first liquid leakage hole 17 disengages from the original round tube 7, and the oxidant inside it is introduced into the dewatering tank 1 through the first liquid leakage hole 17 to start the treatment of the antioxidant by the oxidant in the second stage. And the oxidation tube 8 is located below the liquid level of the sewage. In this way, the chemical oxidants introduced in different stages can quickly diffuse in the sewage.

[0039] Since the area between the two connecting plates 5 is the area where the sewage falls, then a part of the sludge that has not been collected will accumulate directly below the two connecting plates 5. After these sludges accumulate, the chemicals cannot fully contact the sludge and sewage.

[0040] For this reason, the transmission teeth 13 on one side of the roller 2 can drive the chain 10 to move. Blades 6 are arranged on the links of the chain 10. During the rotation of the blades 6, the sludge below can be transferred to a distance, so that these sludges are in a suspended state in the sewage. This can not only effectively solve the problem that the sludge accumulates below the dewatering tank 1 and hinders the movement of the oxidation tube 8, but also effectively improve the reaction rate.

[0041] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered within the protection scope of the present invention.

Claims

1. A treatment device for sludge used in product processing, including a dehydration tank (1), characterized in that: A drum (2) is rotatably arranged at the upper inner position of the dehydration tank (1), and sludge is filled in the drum (2). A number of mesh holes are provided on the outside of the drum (2). Both ends of the drum (2) are connected with transmission shafts (3). The stepping motor (14) is installed outside the dehydration tank (1), and one of the transmission shafts (3) is connected to the output shaft of the stepping motor (14); Two circular tubes (7) are symmetrically installed at the bottom position of the dehydration tank (1). An oxidation tube (8) is slidably arranged between the two circular tubes (7), and the oxidation tube (8) is filled with an oxidizing substance for oxidizing harmful substances in the sewage.

2. The treatment device for sludge used in product processing according to claim 1, characterized in that, Inflatable tubes (9) are installed at the end positions of the circular tubes (7). The inflatable tubes (9) extend to the outside of the dehydration tank (1), and the ends of the inflatable tubes (9) are communicated with an air pump.

3. The treatment device for sludge used in product processing according to claim 2, characterized in that, A partition plate (18) is installed at the middle position inside the oxidation tube (8). The interior of the oxidation tube (8) is divided into two independent spaces by the partition plate (18). Feeding pipes (20) are provided at the upper parts of the oxidation tube (8) on both sides of the partition plate (18), and valves are provided on the feeding pipes (20). First liquid leakage holes (17) and second liquid leakage holes (19) are respectively opened at the lower parts of the oxidation tube (8) on both sides of the partition plate (18).

4. The treatment device for sludge used in product processing according to claim 3, characterized in that, When the first liquid leakage hole (17) is located inside the oxidation tube (8), the second liquid leakage hole (19) is located outside the oxidation tube (8). When the first liquid leakage hole (17) is located outside the oxidation tube (8), the second liquid leakage hole (19) is located inside the oxidation tube (8).

5. The treatment device for sludge used in product processing according to claim 4, characterized in that, Valve plates (16) are slidably arranged at the positions near both ends inside the oxidation tube (8). One side of the valve plate (16) is connected to the end position of the oxidation tube (8) through a guide rod (21), and the outer wall of the oxidation tube (8) is in close contact with the inner wall of the circular tube (7).

6. The treatment device for sludge used in product processing according to claim 5, characterized in that, One end of the transmission shaft (3) is provided with a transmission member, and the transmission members are symmetrically arranged on both sides inside the dehydration tank (1).

7. The treatment device for sludge used in product processing according to claim 6, characterized in that, The transmission member includes two transmission gears (13). A chain (10) is sleeved outside the two transmission gears (13). Blades (6) are arranged on the links of the chain (10). One end of the transmission gear (13) is installed with a rotating shaft (11), and one end of the rotating shaft (11) is rotatably arranged inside the dehydration tank (1).

8. The treatment device for sludge used in product processing according to claim 7, characterized in that, The two lower transmission gears (13) are connected by a circular shaft (12), and there is a gap between the circular shaft (12) and the lower oxidation tube (8).

9. The treatment device for sludge used in product processing according to claim 1, characterized in that, Two connecting plates (5) are symmetrically arranged on the side wall of the dehydration tank (1) below the drum (2). Both connecting plates (5) are arranged obliquely downward, and a number of slot holes (4) are provided on the inclined surfaces above the connecting plates (5).

10. The treatment device for sludge used in product processing according to claim 1, characterized in that, A water outlet pipe (15) is installed at the bottom of the dehydration tank (1), and a valve assembly for controlling its opening and closing is provided on the water outlet pipe (15).

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