Rain sewage secondary purification treatment device

Abstract

The utility model discloses a secondary purification treatment device for rain sewage, which comprises a reaction box, a purification settling box and a secondary purification box, the reaction box is connected with the purification settling box through a first connecting pipe, and the purification settling box is connected with the secondary purification box through a second connecting pipe; a partition plate is fixedly mounted in the middle of the inner wall of the top of the reaction box. According to the utility model, through secondary purification treatment of coagulation, flocculation, precipitation purification, salvage purification, filtration and activated carbon adsorption, not only can large granular heavy objects be precipitated, filtered and purified, but also light flocculent substances can be cleaned and salvaged, and rain sewage impurities which are not fully purified can be filtered and adsorbed; the concentration of pollutants in water is greatly reduced, and the defect that the environment is seriously polluted due to the fact that the concentration of the pollutants discharged from the water is large in the past is overcome, so that the better purification treatment effect is ensured, and the requirement for environmental protection is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to rain and sewage treatment technical field especially relates to a rain and sewage secondary purification treatment device. BACKGROUND

[0002] Due to rainwater pollution is light, after treatment, can directly into the city river, rainwater through deposition, purification, buffer inflow river, can improve the use efficiency of surface water. At the same time, let sewage into sewage pipe network, and through sewage treatment plant treatment, realize sewage regeneration reuse.

[0003] However, at present, most rain and sewage purification treatment is mainly to purify larger impurity objects, but the purification device can only filter larger granular heavy objects due to its structure and function limitation, cannot absorb or clean up the rain and sewage that is not fully purified, the pollutant concentration in these water is high, is directly discharged, causes serious pollution to the environment, does not meet the environmental protection requirement. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a rain and sewage secondary purification treatment device.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A rain and sewage secondary purification treatment device, including reaction box, purification deposition tank and secondary purification tank, the reaction box is connected with the purification deposition tank through the first connecting pipe, the purification deposition tank is connected with the secondary purification tank through the second connecting pipe, the left side of the reaction box is provided with a water inlet pipe, the middle position of the inner wall of the top of the reaction box is also fixedly installed with a partition, the left side of the partition is equipped with coagulation stirring paddle, and the right side of the partition is equipped with flocculation stirring paddle, the top of the reaction box is fixedly installed with a first motor and a second motor respectively, and the output shaft of the first motor is fixedly connected with the coagulation stirring paddle, and the output shaft of the second motor is fixedly connected with the flocculation stirring paddle.

[0007] The lower portion of the purification deposition tank is provided with a sludge discharge pump, and the sludge discharge pump is connected with the bottom of the purification deposition tank through a sludge discharge pipe, the secondary purification tank is movably sleeved with a filter screen plate and an activated carbon adsorption plate below the filter screen plate, the right end of the filter screen plate is movably extended to the outside of the secondary purification tank and is fixedly connected with a sealing plate, a handle is fixedly arranged on the right side of the sealing plate, and a water outlet pipe is further arranged on the right side bottom of the secondary purification tank.

[0008] Preferably, the sealing plate is fixedly installed on the right side of the secondary purification tank through a fastening bolt.

[0009] Preferably, a through hole is arranged on the inner wall of the right side of the secondary purification tank, a sealing sliding sleeve is fixedly sleeved in the through hole, and the filter screen plate is sealingly slid through the sealing sliding sleeve.

[0010] Preferably, the mounting mode between the filter screen plate and the secondary purification tank is the same as the mounting mode between the activated carbon adsorption plate and the secondary purification tank.

[0011] Preferably, the reaction tank is internally provided with a driving sprocket and a driven sprocket located at the right side of the driving sprocket, a chain is transmissionally connected between the driving sprocket and the driven sprocket, a fishing net bag is fixedly installed at the bottom side of the chain, a stepping motor is fixedly installed at the outside of the reaction tank, and the output shaft of the stepping motor rotationally extends into the reaction tank and is fixedly sleeved with the driving sprocket; a collecting box is arranged at the right lower side of the chain, and a discharge pipe is further arranged at the bottom side of the collecting box.

[0012] Preferably, the top of the reaction tank located at the left side of the first motor is provided with a coagulant pouring port; the top of the reaction tank located at the left side of the second motor is provided with a flocculant pouring port; the bottom of the partition plate is further provided with a through port, and the space of the reaction tank located at the left side of the partition plate is in communication with the space of the reaction tank located at the right side of the partition plate through the through port.

[0013] Compared with the prior art, the rainwater and sewage secondary purification treatment device has the following beneficial effects:

[0014] The rainwater and sewage secondary purification treatment device provided by the utility model realizes secondary purification treatment through coagulation, flocculation, precipitation purification, fishing purification, filtration and activated carbon adsorption, can not only precipitate and filter the relatively large granular heavy objects and clean and fish the relatively light flocculent substances, but also can filter and adsorb the rainwater and sewage impurities which are not sufficiently purified, greatly reduces the concentration of the pollutants in water, avoids the disadvantage that the pollutants discharged from water in the prior art have a relatively large concentration and cause great pollution to the environment, and thus is favorable for ensuring that the purification treatment effect is better and meets the environmental protection requirement.

[0015] In the utility model, the filter screen plate and the activated carbon adsorption plate are convenient to disassemble and clean impurities after filtration and adsorption, the sealing plate, the filter screen plate and the activated carbon adsorption plate can be disassembled and cleaned by loosening the fastening bolts on the sealing plate, and the structure is simple and convenient to disassemble and clean. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 is a structural schematic view of a rainwater and sewage secondary purification treatment device according to the utility model;

[0017] Figure 2 Fig. 2 is a structural schematic view of a rainwater and sewage secondary purification treatment device according to the utility model; Figure 1 Fig. 3 is a structural schematic view of part A of the rainwater and sewage secondary purification treatment device according to the utility model.

[0018] In the figure: 1, reaction box; 2, coagulant inlet; 3, first motor; 4, coagulation stirring paddle; 5, partition; 6, water inlet pipe; 7, flocculant inlet; 8, second motor; 9, flocculation stirring paddle; 10, first connecting pipe; 11, purification sedimentation tank; 111, fishing net bag; 112, stepping motor; 113, drive sprocket; 114, chain; 115, driven sprocket; 116, collection box; 117, discharge pipe; 12, sludge discharge pump; 13, second connecting pipe; 14, secondary purification tank; 15, filter screen plate; 16, activated carbon adsorption plate; 17, water outlet pipe; 18, sealing plate; 19, handle; 20, fastening bolt; 21, sealing sliding sleeve. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0020] REFERENCE Figures 1-2 A rain and sewage secondary purification treatment device, including reaction box 1, purification sedimentation tank 11 and secondary purification tank 14, reaction box 1 is connected with purification sedimentation tank 11 through first connecting pipe 10, and purification sedimentation tank 11 is connected with secondary purification tank 14 through second connecting pipe 13;The left side of reaction box 1 is provided with water inlet pipe 6, and the middle position of the inner wall at the top of reaction box 1 is also fixedly installed with partition 5, the left side of partition 5 is provided with coagulation stirring paddle 4, and the right side of partition 5 is provided with flocculation stirring paddle 9;The top of reaction box 1 is fixedly installed with first motor 3 and second motor 8 respectively, and the output shaft of first motor 3 is fixedly connected with coagulation stirring paddle 4, and the output shaft of second motor 8 is fixedly connected with flocculation stirring paddle 9;

[0021] The lower portion of the purification sedimentation tank 11 is provided with a sludge discharge pump 12, and the sludge discharge pump 12 is connected with the bottom of the purification sedimentation tank 11 through a sludge discharge pipe;The secondary purification tank 14 movably sleeves filter screen plate 15 and activated carbon adsorption plate 16 located below filter screen plate 15, the right end of filter screen plate 15 movably extends to the outside of secondary purification tank 14 and is fixedly connected with sealing plate 18, and the right side of sealing plate 18 is fixedly provided with handle 19, and the right bottom of secondary purification tank 14 is also provided with water outlet pipe 17.

[0022] The sealing plate 18 is fixedly installed on the right side of the secondary purification tank 14 by the fastening bolt 20;A through hole is formed in the right inner wall of the secondary purification tank 14, the sealing sliding sleeve 21 is fixedly sleeved in the through hole, and the filter screen plate 15 sealingly and slidingly penetrates the sealing sliding sleeve 21.

[0023] The mounting mode between the filter screen plate 15 and the secondary purification box 14 is the same as the mounting mode between the activated carbon adsorption plate 16 and the secondary purification box 14.

[0024] The reaction box 1 is provided with a driving sprocket 113 and a driven sprocket 115 located at the right side of the driving sprocket 113, and a chain 114 is transmissionally connected between the driving sprocket 113 and the driven sprocket 115, the bottom side of the chain 114 is fixedly installed with a fishing net bag 111, a stepping motor 112 is fixedly installed outside the reaction box 1, and the output shaft of the stepping motor 112 rotationally extends into the reaction box 1 and is fixedly sleeved with the driving sprocket 113; the right lower side of the chain 114 is provided with a collection box 116, and the bottom side of the collection box 116 is further provided with a discharge pipe 117.

[0025] The top of the reaction box 1 located at the left side of the first motor 3 is provided with a coagulant inlet 2, and the top of the reaction box 1 located at the left side of the second motor 8 is provided with a flocculating agent inlet 7; the bottom of the partition plate 5 is further provided with a through port, and the space of the reaction box 1 located at the left side of the partition plate 5 is in communication with the space of the reaction box 1 located at the right side of the partition plate 5 through the through port.

[0026] Working principle: when in use, the rainwater and sewage enter into the reaction box 1 through the water inlet pipe 6, the coagulant is added through the coagulant inlet 2, and the coagulant stirring paddle 4 is rotated by the output shaft of the first motor 3, so as to stir the coagulant and the sewage, and the impurities in the sewage flow to the right side of the reaction box 1 from the through port at the bottom of the partition plate 5 after coagulation; at the same time, the flocculating agent is added through the flocculating agent inlet 7, and the flocculating stirring paddle 9 is driven by the second motor 8 to stir the flocculating agent, so that the impurities in the sewage are flocculated, and finally enter into the purification and sedimentation box 11 through the first connecting pipe 10 for sedimentation, wherein the heavy impurities and sludge are deposited at the bottom, and the lighter flocculent impurities float on the water surface, so that the sludge after sedimentation is discharged through the sludge pump 13, and the flocculent impurities floating on the water surface are collected in the collection box 116 through the reciprocating rotation of the fishing net bag 111, that is, when fishing, the driving sprocket 113 is rotated by the stepping motor 112, and the chain 114 and the driven sprocket 115 are transmissionally matched, when the chain 114 is transmissionally matched clockwise, the fishing net bag 111 is rotated clockwise for fishing, so that the flocculent impurities on the water surface are clockwise transmissionally fished, and the operation is repeated back and forth; then the water after sedimentation flows into the secondary purification box 14 through the second connecting pipe 13, is filtered and purified by the filter screen plate 15, and is adsorbed and purified by the activated carbon adsorption plate 16, and finally the purified water is discharged through the water outlet pipe 17.

[0027] In conclusion, the rainwater and sewage secondary purification treatment device provided by the utility model can not only precipitate and filter and purify the relatively large granular heavy objects and clean and salvage the relatively light flocculent substances, but also filter and adsorb the rainwater and sewage impurities which are not sufficiently purified, greatly reduces the concentration of the pollutants in the water, avoids the disadvantage that the pollutants discharged from the water in the past have a relatively large concentration and cause relatively large pollution to the environment, and thus is favorable for ensuring that the purification treatment effect is better and for meeting the environmental protection requirements.

[0028] In addition, the filter screen plate 15 and the activated carbon adsorption plate 16 are convenient to disassemble and clean the impurities after filtration and adsorption, so that the sealing plate 18 and the filter screen plate 15 and the activated carbon adsorption plate 16 can be disassembled and cleaned by loosening the fastening bolts 20 on the sealing plate 18, and the structure is simple and convenient to disassemble and clean.

[0029] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A secondary purification and treatment device for rainwater and sewage, characterized in that, The reaction chamber includes a reaction chamber (1), a purification sedimentation chamber (11), and a secondary purification chamber (14). The reaction chamber (1) is connected to the purification sedimentation chamber (11) via a first connecting pipe (10), and the purification sedimentation chamber (11) is connected to the secondary purification chamber (14) via a second connecting pipe (13). A water inlet pipe (6) is provided on the left side of the reaction chamber (1), and a partition (5) is fixedly installed in the middle of the inner wall of the top of the reaction chamber (1). A coagulation stirring slurry (4) is provided on the left side of the partition (5), and a flocculation stirring slurry (9) is provided on the right side of the partition (5). A first motor (3) and a second motor (8) are fixedly installed on the top of the reaction chamber (1), and the output shaft of the first motor (3) is fixedly connected to the coagulation stirring slurry (4), and the output shaft of the second motor (8) is fixedly connected to the flocculation stirring slurry (9). A sludge pump (12) is provided below the purification sedimentation tank (11), and the sludge pump (12) is connected to the bottom of the purification sedimentation tank (11) through a sludge discharge pipe; a filter screen plate (15) and an activated carbon adsorption plate (16) located below the filter screen plate (15) are movably sleeved inside the secondary purification tank (14). The right end of the filter screen plate (15) extends movably to the outside of the secondary purification tank (14) and is fixedly connected to a sealing plate (18). A handle (19) is fixedly provided on the right side of the sealing plate (18). A water outlet pipe (17) is also provided at the bottom right side of the secondary purification tank (14).

2. The secondary purification and treatment device for rainwater and sewage according to claim 1, characterized in that, The sealing plate (18) is installed and fixed to the right side of the secondary purification box (14) by fastening bolts (20).

3. The secondary purification and treatment device for rainwater and sewage according to claim 1, characterized in that, The secondary purification box (14) has a through hole on the right inner wall, and a sealing sleeve (21) is fixedly sleeved in the through hole, and the filter screen (15) slides through the sealing sleeve (21).

4. The secondary purification and treatment device for rainwater and sewage according to claim 1, characterized in that, The installation method between the filter plate (15) and the secondary purification box (14) is the same as the installation method between the activated carbon adsorption plate (16) and the secondary purification box (14).

5. The secondary purification and treatment device for rainwater and sewage according to claim 1, characterized in that, The reaction chamber (1) is equipped with a drive sprocket (113) and a driven sprocket (115) located to the right of the drive sprocket (113). A chain (114) is connected between the drive sprocket (113) and the driven sprocket (115). A retrieval net (111) is fixedly installed on the bottom side of the chain (114). A stepper motor (112) is fixedly installed on the outside of the reaction chamber (1). The output shaft of the stepper motor (112) extends into the reaction chamber (1) and is fixedly connected to the drive sprocket (113). A collection box (116) is provided on the lower right side of the chain (114). A discharge pipe (117) is also provided on the bottom side of the collection box (116).

6. The secondary purification and treatment device for rainwater and sewage according to claim 1, characterized in that, A coagulant inlet (2) is provided on the top of the reaction box (1) located to the left of the first motor (3); a flocculant inlet (7) is provided on the top of the reaction box (1) located to the left of the second motor (8); a passage is also provided at the bottom of the partition (5), and the space of the reaction box (1) located to the left of the partition (5) is connected to the space of the reaction box (1) located to the right of the partition (5) through the passage.

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