CN216997843U

CN216997843U - Anaerobic treatment device for papermaking industrial wastewater

Info

Publication number: CN216997843U
Application number: CN202123098712.6U
Authority: CN
Inventors: 熊志刚
Original assignee: Hubei Xianglin Technology Co ltd
Current assignee: Hubei Xianglin Technology Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-07-19
Anticipated expiration: 2031-12-10

Abstract

The utility model discloses an anaerobic treatment device for papermaking industrial wastewater, which comprises a pretreatment chamber and three reaction chambers, wherein the three reaction chambers are sequentially connected end to end and are arranged in a step shape, the pretreatment chamber is connected with the first reaction chamber, an adsorption net is arranged in each reaction chamber, bacteria in a hydrolysis stage, an acidification stage, an acetic acid production stage and a methane production stage are respectively arranged in the adsorption nets of the three reaction chambers, two ends of each adsorption net are connected into the reaction chambers through rotating shafts, bristles are spirally arranged on the outer sides of the adsorption nets, a slag discharge groove is arranged at the bottom of each reaction chamber, an observation window is arranged in each reaction chamber, a thermometer and a PH meter are arranged in each observation window, a first water inlet pipe is arranged at the upper part of one end of each reaction chamber, a first water outlet pipe is arranged at the lower part of the other end of each reaction chamber, and a first exhaust pipe is arranged at the top of each reaction chamber; the utility model reduces the formation of suspended matters, the adsorptive substances are easy to remove, the blockage of the equipment is avoided, the service life is prolonged, and the performance of the equipment is effectively guaranteed.

Description

Anaerobic treatment device for papermaking industrial wastewater

Technical Field

The utility model relates to paper industry equipment, in particular to a paper industry wastewater anaerobic treatment device.

Background

In the anaerobic treatment process of the wastewater in the paper industry, the wastewater contains a large amount of suspended matters and chemical components which interact with each other to be condensed into fine particles and calcium, magnesium, salt and other ions, the viscosity is strong, the adsorption is easy, the blockage on equipment is caused, the performance of the equipment is reduced, the manual cleaning is difficult, and the service life of the long-term reciprocating equipment is shortened.

Through repeated research test, the paper industry waste water anaerobic treatment device is creatively designed, the formation of cohesiveness and adhesive substances of chemical components is broken, the formation of suspended matters is reduced, adsorptive substances are easy to clear, the blockage of equipment is avoided, the service life is prolonged, and the performance of the equipment is effectively guaranteed.

Disclosure of Invention

The utility model aims to overcome the defects and provide the anaerobic treatment device for the paper-making industrial wastewater, which breaks the formation of coagulability and adhesive substances of chemical components, reduces the formation of suspended matters, easily removes adsorptive substances, realizes that equipment is not blocked any more, prolongs the service life and effectively ensures the performance of the equipment.

In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a papermaking industry waste water anaerobic treatment device, including pretreatment chamber and reaction chamber, the quantity of reaction chamber is three, three reaction chamber end to end in proper order and be the echelonment setting, first reaction chamber is connected to the pretreatment chamber, be equipped with the absorption net in the reaction chamber, set up the hydrolysis stage in the absorption net of three reaction chamber respectively, the acidizing is with the acetogenesis stage, the bacterium in the methanogenesis stage, it connects in the reaction chamber through the pivot to adsorb the net both ends, the pivot is connected with the motor, spiral outside the absorption net is equipped with the brush hair, be equipped with the scum groove bottom the reaction chamber, be equipped with the observation window at the reaction chamber, be equipped with thermometer and PH meter in the observation window, be equipped with first inlet tube on reaction chamber one end upper portion, other end lower part is equipped with first outlet pipe, be equipped with first exhaust pipe at the reaction chamber top.

Preferably, the upper part of the pretreatment chamber is provided with a second water inlet pipe and a second water outlet pipe, the position of the second water inlet pipe is higher than that of the second water outlet pipe, the second water outlet pipe is provided with a switch valve, and the top of the pretreatment chamber is provided with a second exhaust pipe.

Preferably, a filtering net cage is arranged between the second water inlet pipe and the second water outlet pipe, and a sand and stone filtering layer is arranged in the filtering net cage.

Preferably, two rotating shafts are fixed on the inner wall of the reaction chamber through bearings, one rotating shaft is connected with an output shaft of a motor, and the motor is fixed on the outer wall of the reaction chamber.

Preferably, the reaction chamber is cylindrical and the bristles abut the inner wall of the reaction chamber.

Preferably, the two ends of the slag discharging groove are provided with slag discharging ports.

Preferably, the pretreatment chamber and the reaction chamber are both fixed to the base.

The utility model has the beneficial effects that:

1. the waste water is degassed, so that calcium ions in the waste water are prevented from reacting with carbon dioxide in the air to produce calcium carbonate, the formation of coagulability and adhesive substances of chemical components is broken, and the formation of suspended matters is reduced;

2. the wastewater is filtered, so that impurities such as suspended matters, macromolecular particles and the like in the wastewater can be effectively filtered, and the equipment blockage is further reduced;

3. the rotary brush hair is arranged to remove adsorptive substances attached to the equipment, so that the equipment blockage is further reduced, the service life is prolonged, and the performance of the equipment is effectively guaranteed;

4. simple structure and easy popularization.

Drawings

FIG. 1 is a schematic view of a paper industry wastewater anaerobic treatment apparatus;

FIG. 2 is a schematic view showing the inside structure of a reaction chamber 2 in an anaerobic treatment apparatus for wastewater from paper industry;

FIG. 3 is a schematic view showing the inside of a pretreatment chamber 1 in an anaerobic treatment apparatus for wastewater from paper industry;

in the figure, a pretreatment chamber 1, a reaction chamber 2, an adsorption net 3, a rotating shaft 4, a motor 5, brush bristles 6, a slag discharge groove 7, a slag discharge port 7.1, an observation window 8, a thermometer 9, a PH meter 10, a first water inlet pipe 11, a first water outlet pipe 12, a first exhaust pipe 13, a second water inlet pipe 14, a second water outlet pipe 15, a second exhaust pipe 16, a filter net box 17 and a base 18.

Detailed Description

The utility model is described in further detail below with reference to the figures and specific embodiments.

As shown in fig. 1 to 3, an anaerobic treatment device for paper industry wastewater comprises a pretreatment chamber 1 and a reaction chamber 2, the number of the reaction chambers 2 is three, the three reaction chambers 2 are sequentially connected end to end and are arranged in a ladder shape, the pretreatment chamber 1 is connected with the first reaction chamber 2, adsorption nets 3 are arranged in the reaction chambers 2, bacteria in a hydrolysis stage, an acidification and acetic acid production stage and a methane production stage are respectively arranged in the adsorption nets 3 of the three reaction chambers 2, two ends of each adsorption net 3 are connected in the reaction chambers 2 through rotating shafts 4, the rotating shafts 4 are connected with motors 5, the outer side of the adsorption net 3 is spirally provided with brush hair 6, the bottom of the reaction chamber 2 is provided with a slag discharge groove 7, the reaction chamber 2 is provided with an observation window 8, the observation window 8 is internally provided with a thermometer 9 and a PH meter 10, a first water inlet pipe 11 is arranged at the upper part of one end of the reaction chamber 2, a first water outlet pipe 12 is arranged at the lower part of the other end of the reaction chamber 2, and a first exhaust pipe 13 is arranged at the top of the reaction chamber 2. The first water outlet pipe 12 of the previous reaction chamber 2 is connected with the first water inlet pipe 11 of the next reaction chamber 2, and the first water outlet pipe 12 and the first exhaust pipe 13 are both provided with switch valves.

Preferably, a second water inlet pipe 14 and a second water outlet pipe 15 are arranged at the upper part of the pretreatment chamber 1, the position of the second water inlet pipe 14 is higher than that of the second water outlet pipe 15, a switch valve is arranged on the second water outlet pipe 15, and a second exhaust pipe 16 is arranged at the top of the pretreatment chamber 1. The carbon dioxide in the air can rapidly react with calcium ions in the wastewater to produce calcium carbonate, and the anaerobic granular sludge calcification can be greatly accelerated. The calcified granular sludge has poor activity and low COD removal capacity, and the calcified granular sludge has larger specific gravity and deposits to block the pipeline of the equipment. The paper industry waste water flows into the inside of the pretreatment chamber 1 through the second water inlet pipe 14, the gas mixed in the waste water rises under the buoyancy of the water and is discharged through the second exhaust pipe 16, the degassed waste water is discharged to the next treatment equipment through the second water outlet pipe 15, and since the height of the second water outlet pipe 15 is lower than that of the second water inlet pipe 14, the waste water discharged from the second water outlet pipe 15 is basically degassed effectively.

Preferably, a filtering net cage 17 is arranged between the second water inlet pipe 14 and the second water outlet pipe 15, and a sand filtering layer is arranged in the filtering net cage 17. Such setting can effectively filter impurity such as suspended solid, macromolecule granule in the sewage, has further reduced equipment and has blockked up.

Preferably, two rotating shafts 4 are fixed on the inner wall of the reaction chamber 2 through bearings, one rotating shaft 4 is connected with an output shaft of the motor 5, and the motor 5 is fixed on the outer wall of the reaction chamber 2. Such an arrangement makes the structure more stable.

Preferably, the reaction chamber 2 is cylindrical and the bristles 6 abut the inner wall of the reaction chamber 2. Due to the arrangement, the bristles 6 can scrape impurities attached to the inner wall of the reaction chamber 2 and bring the impurities into the slag discharging groove 7, the service life is prolonged, and the performance of equipment is effectively guaranteed.

Preferably, the two ends of the slag discharging groove 7 are both provided with slag discharging ports 7.1, and the arrangement is convenient for opening the slag discharging ports 7.1 at the two ends to remove impurities in the slag discharging groove 7.

Preferably, the pretreatment chamber 1 and the reaction chamber 2 are fixed on the base 18. Such an arrangement increases the stability of the device.

The working principle of the embodiment is as follows: in use, the paper industry wastewater flows into the pretreatment chamber 1 through the second water inlet pipe 14, the gas mixed in the wastewater rises under the buoyancy of water and is discharged through the second exhaust pipe 16, the degassed wastewater is discharged to the next treatment device through the second water outlet pipe 15, and since the height of the second water outlet pipe 15 is lower than that of the second water inlet pipe 14, the wastewater discharged from the second water outlet pipe 15 is substantially degassed effectively. Waste water passes through the filtering net box 17 when flowing into the pretreatment chamber 1, and impurities such as suspended matters and macromolecular particles in sewage can be effectively filtered.

Waste water after filtration and degasification treatment in the pretreatment chamber 1 passes through the second water outlet pipe 15, the first water inlet pipe 11 flows into the first reaction chamber 2, hydrolyze under the effect of bacteria in the adsorption net 3, open the first water outlet pipe 12 after finishing the use, the waste water passes through the first water outlet pipe 12, the first water inlet pipe 11 flows into the second reaction chamber 2, carry out acidification and acetogenesis under the effect of bacteria in the adsorption net 3, open the first water outlet pipe 12 after finishing the use, the waste water passes through the first water outlet pipe 12, the first water inlet pipe 11 flows into the third reaction chamber 2, methanogenesis under the effect of bacteria in the adsorption net 3, the waste water is discharged through the first water outlet pipe 12 at last. In the anaerobic reaction process, the temperature and the PH in the reaction chamber 2 can be checked in real time through the observation window, and the process of the anaerobic reaction can be checked.

After the reaction is finished, the wastewater in the device is discharged firstly, then the slag discharging ports 7.1 at two ends of the slag discharging groove 7 of the three reaction chambers 2 are opened, and the impurities in the slag discharging groove 7 are pushed out and cleaned by tools such as a long brush and the like.

According to the utility model, the waste water is subjected to degassing treatment, so that calcium ions in the waste water are prevented from reacting with carbon dioxide in the air to produce calcium carbonate, the formation of cohesive and adhesive substances of chemical components is broken, and the formation of suspended matters is reduced; the wastewater is filtered, so that impurities such as suspended matters, macromolecular particles and the like in the wastewater can be effectively filtered, and the equipment blockage is further reduced; through setting up rotatory brush hair, clear away the adsorptivity material of adhering to on equipment, further reduced equipment and blockked up, prolonged life, the performance of equipment has obtained effective guarantee, simple structure easily promotes.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of this invention.

Claims

1. The utility model provides a papermaking industry waste water anaerobic treatment device, includes pretreatment chamber (1) and reaction chamber (2), its characterized in that: the quantity of reaction chamber (2) is three, three reaction chamber (2) end to end in proper order and be the echelonment setting, first reaction chamber (2) is connected in pre-treatment chamber (1), be equipped with absorption net (3) in reaction chamber (2), set up the hydrolysis stage respectively in absorption net (3) of three reaction chamber (2), the acidizing and the acetogenesis stage, the bacterium in methanogenesis stage, absorption net (3) both ends are connected in reaction chamber (2) through pivot (4), pivot (4) are connected with motor (5), the spiral is equipped with brush hair (6) in absorption net (3) outside, be equipped with slag discharging groove (7) bottom reaction chamber (2), be equipped with observation window (8) in reaction chamber (2), be equipped with thermometer (9) and PH meter (10) in observation window (8), be equipped with first inlet tube (11) on reaction chamber (2) one end upper portion, other end lower part is equipped with first outlet pipe (12), the top of the reaction chamber (2) is provided with a first exhaust pipe (13).

2. The anaerobic treatment device for the wastewater of the paper industry according to claim 1, characterized in that: the pretreatment chamber (1) upper portion is equipped with second inlet tube (14) and second outlet pipe (15), and second inlet tube (14) position is higher than second outlet pipe (15), is equipped with the ooff valve on second outlet pipe (15), is equipped with second blast pipe (16) at pretreatment chamber (1) top.

3. The anaerobic treatment device for the wastewater of the paper industry as claimed in claim 2, characterized in that: a filtering net box (17) is arranged between the second water inlet pipe (14) and the second water outlet pipe (15), and a sand filtering layer is arranged in the filtering net box (17).

4. The anaerobic treatment device for the wastewater of the paper industry according to claim 1, characterized in that: two rotating shafts (4) are fixed on the inner wall of the reaction chamber (2) through bearings, one rotating shaft (4) is connected with an output shaft of a motor (5), and the motor (5) is fixed on the outer wall of the reaction chamber (2).

5. The anaerobic treatment device for the wastewater in the paper industry according to claim 1, characterized in that: the reaction chamber (2) is cylindrical, and the brush hairs (6) are propped against the inner wall of the reaction chamber (2).

6. The anaerobic treatment device for the wastewater of the paper industry according to claim 1, characterized in that: both ends of the slag discharging groove (7) are provided with slag discharging openings (7.1).

7. The anaerobic treatment device for the wastewater of the paper industry according to claim 1, characterized in that: the pretreatment chamber (1) and the reaction chamber (2) are both fixed on a base (18).