A decoloring and sterilizing all-in-one machine and application thereof

Abstract

The present application relates to a kind of decolorization sterilization integrated machine, including outer cylinder, inner cylinder is arranged in the outer cylinder, the space between the inner cylinder and outer cylinder forms air float area, air float area upper end is communicated with dregs collection chamber, dregs collection chamber is set to outer cylinder upper end, dregs collection chamber lower end is sheathed in the outer cylinder mouth peripheral and is sealedly connected with outer cylinder, dregs collection chamber upper end is covered with sealing cover, dregs collection chamber inside and the dregs storage device of outer cylinder outside are communicated, air float area is respectively communicated with raw water pool and micro-nano bubble generator, inner cylinder is respectively communicated with the liquid inlet of gas-liquid mixing pump, air float area, the intermediate treatment water of the present application integrated machine is obtained by removing suspended matter and other substances in water body through a large number of small bubbles first, then makes ozone evenly enter intermediate treatment water, and the colority, bacteria, virus etc. in intermediate treatment water are efficiently inactivated, and the removal rate of suspended matter and other substances is high, can significantly improve the utilization rate of ozone, save the consumption of ozone.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wastewater treatment equipment in papermaking industry, and particularly relates to an integrated equipment capable of removing chroma and sterilizing and disinfecting and application thereof. BACKGROUND

[0002] At present, for the treatment of water reuse in industrial production, the removal of chroma is more common to decoloring / bleaching agent; sterilization and disinfection is more common to bactericide, ultraviolet and the like. The decoloring / bleaching agent is mostly strong oxidizing agent product, which will affect product quality if remaining in water for reuse, causing difficult coloring or uneven chroma. The main disadvantage of using bactericide for sterilization and disinfection is that it cannot inactivate bacteria in spore state, and the direct consequence is that bactericide needs to be frequently replaced, and the sterilization effect is not ideal. Ultraviolet also cannot inactivate bacteria in spore state.

[0003] Ozone has strong oxidizing property, and has broad-spectrum sterilization effect while decoloring. The effect of using ozone for decoloring, sterilization and disinfection is timely. However, the consumption of ozone by suspended matter, COD / BOD, oil and colloidal substance in water is very large, resulting in very low efficiency of ozone decoloring and sterilization. The preparation of ozone requires high energy consumption, which limits the application range of ozone in industrial water treatment. In the existing treatment method, the suspended matter and the like in wastewater is removed by air floatation before ozone sterilization, but the air floatation treatment device has unsatisfactory air floatation effect, and is separately arranged with the ozone treatment device, resulting in long wastewater treatment line, large occupied space, high cost and high operation cost. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a decoloring and sterilization integrated machine, which can realize air floatation and ozone sterilization on wastewater in sequence, improves the efficiency of ozone decoloring and sterilization, has good water treatment effect, saves the occupied space of wastewater treatment line, and greatly reduces the wastewater treatment cost.

[0005] To achieve the above object, the present application adopts the following technical scheme:

[0006] The application provides a decoloring and sterilizing integrated machine, which comprises an outer cylinder, an inner cylinder arranged in the outer cylinder, a gas floating area formed between the inner cylinder and the outer cylinder, a floating sludge collecting chamber communicated with the upper end of the gas floating area, the floating sludge collecting chamber arranged at the upper end of the outer cylinder, the lower end of the floating sludge collecting chamber sleeved on the outer periphery of the mouth of the outer cylinder and in sealing connection with the outer cylinder, a sealing cover arranged on the upper end of the floating sludge collecting chamber, a first pipeline for communicating the inside of the floating sludge collecting chamber with a floating sludge storage device outside the outer cylinder, a second pipeline for respectively communicating the gas floating area with a raw water pool and a micro-nano bubble generator, a third pipeline for communicating the inside of the inner cylinder with a clean water collecting device arranged outside the outer cylinder, a fourth pipeline for communicating the inside of the inner cylinder with a liquid inlet of a gas-liquid mixing pump, an eighth pipeline for communicating the gas floating area, a gas inlet of the gas-liquid mixing pump communicated with a fifth pipeline for introducing ozone, a sixth pipeline for communicating the outlet of the gas-liquid mixing pump with the inside of the inner cylinder, a seventh pipeline for communicating the floating sludge collecting chamber, and a ninth pipeline for communicating the floating sludge collecting chamber with a tail gas collecting device.

[0007] Specifically, the upper end of the outer cylinder is higher than the lower end of the floating sludge collecting chamber, the upper end of the inner cylinder is higher than the upper end of the outer cylinder, and the upper end of the floating sludge collecting chamber is higher than the upper end of the inner cylinder.

[0008] Specifically, one end of the first pipeline communicated with the floating sludge collecting chamber is located at the lower end of the floating sludge collecting chamber, one end of the second pipeline communicated with the gas floating area is located at the middle part of the gas floating area, one end of the eighth pipeline communicated with the inner cylinder is located at the upper part of the inner cylinder, and one end of the eighth pipeline communicated with the gas floating area is located at the lower end of the gas floating area.

[0009] Specifically, the lower end of the inner cylinder is provided with a partition plate, the partition plate is in sealing connection with the side wall of the inner cylinder, water inlets are arranged on the partition plate at intervals, and the partition plate, the side wall of the inner cylinder and the lower wall of the inner cylinder form a clean water collecting chamber, one end of the third pipeline communicated with the inner cylinder and one end of the fourth pipeline communicated with the inner cylinder are located in the clean water collecting chamber, and one end of the sixth pipeline communicated with the inner cylinder is located at the upper end of the partition plate.

[0010] Specifically, the upper end of the clean water chamber is provided with an ozone releasing chamber, one end of the sixth pipeline communicated with the inner cylinder is located in the ozone releasing chamber, there is a gap between the side wall of the ozone releasing chamber and the side wall of the inner cylinder, the water inlets are located between the inner cylinder and the ozone releasing chamber, and gas outlets are uniformly and interval arranged on the top plate of the ozone releasing chamber.

[0011] Specifically, the eighth pipeline comprises a first main pipe, one end of the first main pipe is located at the upper part of the inner cylinder, the other end of the first main pipe is communicated with a first branch pipe, and one end of the first branch pipe away from the first main pipe is located at the lower end of the gas floating area.

[0012] Specifically, a plurality of first branch pipes are arranged, and the ends of the plurality of first branch pipes away from the first main pipe are uniformly and interval arranged at the lower end of the gas floating area.

[0013] Specifically, the seventh pipeline comprises a second main pipe and a plurality of second branch pipes, one end of the second main pipe is connected with the outlet of the gas-liquid mixing pump, the other end of the second main pipe is connected with the plurality of second branch pipes through the sealing cover, and the plurality of second branch pipes are arranged on the outer periphery of the upper end of the outer cylinder in a uniform interval.

[0014] Specifically, the upper end of the outer cylinder is 0.2-0.6 m higher than the lower end of the scum collecting chamber, the upper end of the inner cylinder is 0.3-0.5 m higher than the upper end of the outer cylinder, and the upper end of the scum collecting chamber is 0.3-0.5 m higher than the upper end of the inner cylinder.

[0015] The application also provides the above-mentioned decolorization and sterilization integrated machine for use in the field of sewage treatment in the papermaking industry.

[0016] Compared with the prior art, the application has the following beneficial effects:

[0017] (1) The application provides a decolorization and sterilization integrated machine, which can remove suspended matters and other substances in water through a large number of fine bubbles, especially can classify and remove hydrophilic substances and hydrophobic substances on the surface, to obtain intermediate treatment water, and then make ozone uniformly enter the intermediate treatment water, and utilize the strong oxidizing property of ozone dissolved in water to efficiently inactivate chroma, bacteria, viruses and the like in the intermediate treatment water, so that the removal rate of suspended matters and other substances is high, and the efficiency of ozone in decolorization and sterilization and disinfection can be significantly improved, and the consumption of ozone can be saved.

[0018] (2) The decolorization and sterilization integrated machine is designed to be sealed, and the ozone overflowed in water can be recycled, so that the utilization rate of ozone is improved, and no secondary pollution is caused to the environment.

[0019] (3) The decolorization and sterilization integrated machine integrates the air floatation treatment function and the ozone treatment function, has a small occupied space, low equipment cost and low operation cost, and water enters another region from one region in the integrated machine by the natural pressure of the water body, so that the setting of a water pumping device is reduced, the energy consumption of the water treatment line is further reduced, and the operation cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Fig. 1 is a schematic diagram of the overall structure of the integrated machine of the application;

[0021] Figure 2 Fig. 4 is a top view of the ozone releasing chamber of the application;

[0022] 1, ninth pipeline, 2, sealing cover, 3, scum collection chamber, 4, first pipeline, 5, outer cylinder, 6, air floatation zone, 7, micro-nano bubble generator, 8, second pipeline, 9, inner cylinder, 10, third pipeline, 11, clean water collection chamber, 12, partition, 1201, water inlet hole, 13, ozone release chamber, 1301, air outlet hole, 14, fourth pipeline, 15, fifth pipeline, 16, gas-liquid mixing pump, 17, sixth pipeline, 18, eighth pipeline, 1801, first main pipe, 1802, first branch pipe, 19, seventh pipeline, 1901, second main pipe, 1902, second branch pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Embodiment 1

[0025] The present embodiment provides a decolorization and sterilization all-in-one machine, which comprises an outer cylinder 5, an inner cylinder 9 arranged inside the outer cylinder 5, a bottom wall of the inner cylinder 9 being sealingly connected to a bottom wall of the outer cylinder 5, a space between a side wall of the inner cylinder 9 and a side wall of the outer cylinder 5 forming an air floatation zone 6, an upper end of the air floatation zone 6 being in communication with a scum collection chamber 3, the scum collection chamber 3 being arranged at an upper end of the outer cylinder 5, a lower end of the scum collection chamber 3 being sleeved around an outer periphery of a mouth of the outer cylinder 5 and being sealingly connected to the outer cylinder 5, a sealing cover 2 being arranged on an upper end of the scum collection chamber 3, the scum collection chamber 3 being in communication with a scum storage device arranged outside the outer cylinder 5 through a first pipeline 4 arranged inside the scum collection chamber 3 and outside the outer cylinder 5, the air floatation zone 6 being in communication with an original water pool and a micro-nano bubble generator 7 arranged outside the outer cylinder 5 through a second pipeline 8, respectively, the inner cylinder 9 being further in communication with a clean water collection device arranged outside the outer cylinder 5 through a third pipeline 10 arranged inside the inner cylinder 9, the third pipeline 10 being in communication with a liquid inlet of a gas-liquid mixing pump 16 arranged outside the outer cylinder 5 through a fourth pipeline 14, the third pipeline 10 being in communication with the air floatation zone 6 through an eighth pipeline 18, a gas inlet of the gas-liquid mixing pump 16 being in communication with a fifth pipeline 15 for introducing ozone, an outlet of the gas-liquid mixing pump 16 being in communication with an inside of the inner cylinder 9 through a sixth pipeline 17, the outlet of the gas-liquid mixing pump 16 being in communication with the scum collection chamber 3 through a seventh pipeline 19, and the scum collection chamber 3 being in communication with a tail gas collection device arranged outside the outer cylinder 5 through a ninth pipeline 1.

[0026] In the running of the integrated machine in the embodiment, the raw water is acted on by the nanometer generator before entering the air flotation area 6 through the second pipeline 8, so that numerous micro-nano bubbles are generated in the raw water. The raw water containing the micro-nano bubbles enters the air flotation area 6 through the second pipeline 8. In the air flotation area 6, the micro-nano bubbles are adsorbed on the suspended matters and the like, and drive the suspended matters and the like to go upwards. The suspended matters and the like go along with the liquid from the upper end of the air flotation area 6 into the dregs collecting chamber 3 first, and then flow into the dregs collecting device through the first pipeline 4. Since the suspended matters and the like in the raw water have floated up in the air flotation area 6, the water at the lower end of the air flotation area 6 does not contain the suspended matters and the like, and enters the inner cylinder 9 through the eighth pipeline 18. The liquid containing ozone enters the inner cylinder 9 through the sixth pipeline 17 to remove color and sterilize the water. Since the water in the inner cylinder 9 goes downwards, and the ozone goes upwards in the water, the water at the lower end of the inner cylinder 9 is clean water treated by ozone. The clean water flows into the clean water collecting device through the third pipeline 10, and enters the air-ozone mixing pump 16 through the fourth pipeline 14 to mix with ozone to form the liquid containing ozone. The liquid containing ozone also enters the dregs collecting chamber 3 through the seventh pipeline 19 to make the liquid in the dregs collecting chamber 3 churn constantly, so as to ensure that the suspended matters and the like are discharged from the first pipeline 4 along with the liquid. The ninth pipeline 1 is connected to one end of the dregs collecting chamber 3, and is located at the upper end of the dregs collecting chamber 3, so as to ensure that the ozone overflowing from the liquid can be discharged through the ninth pipeline 1.

[0027] In order to better realize the effect of the present application, in the above embodiment, the upper end of the outer cylinder 5 is higher than the lower end of the dregs collecting chamber 3, and one end of the first pipeline 4 connected to the dregs collecting chamber 3 is located at the lower end of the dregs collecting chamber 3, so as to remove the suspended matters and the like in the dregs collecting chamber 3 to the maximum extent. The upper end of the inner cylinder 9 is higher than the upper end of the outer cylinder 5, so as to prevent the liquid at the upper end of the outer cylinder 5 from flowing into the inner cylinder 9 to pollute the liquid in the inner cylinder 9. In the actual running process, it is necessary to ensure that the liquid level of the dregs collecting chamber 3 is between the upper end of the outer cylinder 5 and the upper end of the inner cylinder 9. One end of the second pipeline 8 connected to the air flotation area 6 is located at the middle of the air flotation area 6, so as to ensure that the suspended matters and the like are discharged along with the micro-nano bubbles, and also to ensure that the liquid at the lower end of the air flotation area 6 contains as little suspended matters and the like as possible. The upper end of the dregs collecting chamber 3 is higher than the upper end of the inner cylinder 9, and one end of the eighth pipeline 18 connected to the inner cylinder 9 is located at the upper part of the inner cylinder 9, so as to ensure that the water entering the inner cylinder 9 goes downwards, and the ozone goes upwards in the inner cylinder 9. In this way, the water entering the inner cylinder 9 can be better acted on by ozone. One end of the eighth pipeline 18 connected to the air flotation area 6 is located at the lower end of the air flotation area 6, so as to ensure that the water entering the inner cylinder 9 is the clean water at the lower end of the air flotation area 6. One end of the third pipeline 10 connected to the inner cylinder 9 and one end of the fourth pipeline 14 connected to the inner cylinder 9 are arranged at the lower part of the inner cylinder 9, so as to ensure that the water discharged from the third pipeline 10 and the fourth pipeline 14 is clean water.

[0028] In the above embodiment, the eighth pipeline 18 comprises a first main pipe 1801, one end of which is located at the upper part of the inner cylinder 9, and the other end is communicated with a first branch pipe 1802, a plurality of first branch pipes 1802 are provided, and the ends of the plurality of first branch pipes 1802 away from the first main pipe 1801 are uniformly arranged at the lower end of the air floatation zone 6, that is, a circle of first branch pipes 1802 is uniformly arranged at the lower end of the inner cylinder 9, so that the water at the lower part of the air floatation zone 6 uniformly enters the inner cylinder 9, which not only does not disturb the suspended matter and other substances that are floating up, but also ensures that the liquid entering the inner cylinder 9 does not contain suspended matter and other substances; the seventh pipeline 19 comprises a second main pipe 1901 and a second branch pipe 1902, one end of the second main pipe 1901 is connected with the outlet of the gas-liquid mixing pump 16, the other end penetrates through the sealing cover 2 and is communicated with one end of a plurality of second branch pipes 1902, respectively, and the ends of the plurality of second branch pipes 1902 away from the second main pipe 1901 are uniformly arranged at the periphery of the upper end of the outer cylinder 5, so as to ensure that the liquid in the scum collecting chamber 3 is uniformly stirred, and the local blockage of suspended matter and other substances is avoided.

[0029] In the above embodiment, the lower part of the inner cylinder 9 is provided with a partition plate 12, one end of the sixth pipeline 17 communicated with the inner cylinder 9 is located at the upper end of the clean water collecting chamber 11, the partition plate 12 is sealingly connected with the side wall of the inner cylinder 9, and the area surrounded by the partition plate 12, the side wall of the inner cylinder 9 and the lower wall of the inner cylinder 9 forms the clean water collecting chamber 11, a plurality of water inlet holes 1201 are uniformly arranged on the partition plate 12, which slow down the speed of water entering the clean water collecting chamber 11, on the one hand, to prevent the ozone from being taken away before it has reacted with the water, and on the other hand, to prevent the water level in the inner cylinder 9 from falling too fast, so as to ensure the pressure of the clean water in the clean water collecting chamber 11 flowing out from the third pipeline 10 and the fourth pipeline 14, one end of the third pipeline 10 communicated with the inner cylinder 9 and one end of the fourth pipeline 14 communicated with the inner cylinder 9 are both located in the clean water collecting chamber 11.

[0030] The upper end of the clean water collecting chamber 11 is provided with an ozone releasing chamber 13, one end of the sixth pipeline 17 communicated with the inner cylinder 9 is located in the ozone releasing chamber 13, there is a gap between the side wall of the ozone releasing chamber 13 and the side wall of the inner cylinder 9, the water inlet hole 1201 is located between the inner cylinder 9 and the ozone releasing chamber 13, and a plurality of gas outlet holes 1301 are uniformly arranged on the top plate of the ozone releasing chamber 13, the ozone bubbles entering the ozone releasing chamber 13 through the sixth pipeline 17 are uniformly released from the gas outlet holes 1301 after colliding in the ozone releasing chamber 13, on the one hand, the contact area between the ozone and the water is increased, and the rising speed of the ozone is slowed down, so as to ensure the sterilization effect of the ozone, on the other hand, there is a certain distance between the gas outlet holes 1301 of the ozone releasing chamber 13 and the water inlet holes 1201, which further prevents the ozone just released from being taken away before it has reacted with the water.

[0031] In the above embodiment, the height difference between the upper end of the outer cylinder 5 and the lower end of the scum collecting chamber 3, the height difference between the upper end of the inner cylinder 9 and the upper end of the outer cylinder 5, the height difference between the upper end of the scum collecting chamber 3 and the upper end of the inner cylinder 9, and the flow rate of each pipe can be determined according to design requirements. Preferably, the upper end of the outer cylinder 5 is 0.2-0.6 m higher than the lower end of the scum collecting chamber 3, the upper end of the inner cylinder 9 is 0.3-0.5 m higher than the upper end of the outer cylinder 5, and the upper end of the scum collecting chamber 3 is 0.3-0.5 m higher than the upper end of the inner cylinder 9.

[0032] To further improve the effect of the present application, a filter layer can be arranged at the upper end of the water inlet hole 1201, so that the water in the inner cylinder 9 is filtered through the filter layer before entering the clean water collecting chamber 11.

[0033] The above embodiment can be applied to water treatment, which can significantly improve the utilization rate of ozone and reduce the cost of equipment and operation.

[0034] The specific embodiments of the present application enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application.

[0035] It should be understood that the present application is not limited to the above-described embodiments, and various modifications and changes can be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A color-removing and sterilization integrated machine, characterized in that, include: An outer cylinder (5) is provided inside the outer cylinder (5), and an inner cylinder (9) is provided inside the outer cylinder (5). The space between the inner cylinder (9) and the outer cylinder (5) forms an air flotation zone (6). The upper end of the air flotation zone (6) is connected to the scum collection chamber (3). The scum collection chamber (3) is located at the upper end of the outer cylinder (5). The lower end of the scum collection chamber (3) is fitted around the opening of the outer cylinder (5) and is sealed to the outer cylinder (5). The upper end of the scum collection chamber (3) is covered with a sealing cap (2). The interior of the scum collection chamber (3) is connected to the scum collection device outside the outer cylinder (5) through a first pipe (4). The air flotation zone (6) is connected to the raw water tank and the micro-nano tank through a second pipe (8). The bubble generator (7) is connected, and the inner cylinder (9) is also connected to the water purification collection device located outside the outer cylinder (5) through the third pipe (10), the liquid inlet of the gas-liquid mixing pump (16) through the fourth pipe (14), the air flotation zone (6) through the eighth pipe (18), the gas inlet of the gas-liquid mixing pump (16) is connected to the fifth pipe (15) for ozone inlet, the outlet of the gas-liquid mixing pump (16) is connected to the inner cylinder (9) through the sixth pipe (17), the scum collection chamber (3) through the seventh pipe (19), and the scum collection chamber (3) is connected to the tail gas collection device through the ninth pipe (1). The upper end of the outer cylinder (5) is higher than the lower end of the scum collection chamber (3), the upper end of the inner cylinder (9) is higher than the upper end of the outer cylinder (5), and the upper end of the scum collection chamber (3) is higher than the upper end of the inner cylinder (9). The first pipe (4) is connected to the scum collection chamber (3) at one end, which is located at the lower end of the scum collection chamber (3). The second pipe (8) is connected to the air flotation zone (6) at one end, which is located in the middle of the air flotation zone (6). The eighth pipe (18) is connected to the inner cylinder (9) at one end, which is located at the upper part of the inner cylinder (9). The second pipe (8) is connected to the air flotation zone (6) at one end, which is located at the lower end of the air flotation zone (6). The lower end of the inner cylinder (9) is provided with a partition (12). The partition (12) is sealed to the side wall of the inner cylinder (9) around its circumference. Water inlet holes (1201) are provided on the partition (12) at intervals. The area enclosed by the partition (12), the side wall of the inner cylinder (9) and the lower wall of the inner cylinder (9) forms a clean water collection chamber (11). The end of the third pipe (10) connected to the inner cylinder (9) and the end of the fourth pipe (14) connected to the inner cylinder (9) are both located in the clean water collection chamber (11). The end of the sixth pipe (17) connected to the inner cylinder (9) is located at the upper end of the partition (12). An ozone release chamber (13) is provided at the upper end of the water collection chamber (11). One end of the sixth pipe (17) connected to the inner cylinder (9) is located inside the ozone release chamber (13). There is a gap between the side wall of the ozone release chamber (13) and the side wall of the inner cylinder (9). The water inlet (1201) is located between the inner cylinder (9) and the ozone release chamber (13). The top plate of the ozone release chamber (13) is provided with air outlets (1301) at even intervals. The eighth pipe (18) includes a first main pipe (1801), one end of which is located at the upper part of the inner cylinder (9), and the other end is connected to the first branch pipe (1802). The end of the first branch pipe (1802) away from the first main pipe (1801) is located at the lower end of the air flotation zone (6).

2. The decolorizing and sterilizing integrated machine according to claim 1, characterized in that, Multiple first branch pipes (1802) are provided, and the ends of the multiple first branch pipes (1802) that are away from the first main pipe (1801) are evenly spaced at the lower end of the air flotation zone (6).

3. The decolorization and sterilization integrated machine according to claim 1, characterized in that, The seventh pipeline (19) includes a second main pipe (1901) and a second branch pipe (1902). One end of the second main pipe (1901) is connected to the outlet of the gas-liquid mixing pump (16), and the other end passes through the sealing cover (2) and is connected to multiple second branch pipes (1902) respectively. The ends of the multiple second branch pipes (1902) away from the second main pipe (1901) are evenly spaced on the outer periphery of the upper end of the outer cylinder (5).

4. The decolorizing and sterilizing integrated machine according to claim 1, characterized in that, The upper end of the outer cylinder (5) is 0.2~0.6m higher than the lower end of the scum collection chamber (3), the upper end of the inner cylinder (9) is 0.3~0.5m higher than the upper end of the outer cylinder (5), and the upper end of the scum collection chamber (3) is 0.3~0.5m higher than the upper end of the inner cylinder (9).

5. The decolorization and sterilization integrated machine according to any one of claims 1 to 4 is applied to the field of wastewater treatment in the papermaking industry.

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