CN215480406U

CN215480406U - Sewage treatment plant is used in benzoic acid production

Info

Publication number: CN215480406U
Application number: CN202121619144.7U
Authority: CN
Inventors: 高益明; 周宇; 詹书田; 万焱明; 俞新平; 杨代萍; 徐国鸣
Original assignee: Hunan Hongrun Chemical Technology Co ltd
Current assignee: Hunan Hongrun Chemical Technology Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2022-01-11
Anticipated expiration: 2031-07-16

Abstract

The utility model discloses a sewage treatment device for benzoic acid production, which comprises a sewage pool, a box body and an internal rectangular lifting frame, wherein the sewage in the sewage pool is divided into supernatant and turbid liquid by an electric pump under the action of a cyclone separator, the supernatant flows back into the sewage pool, the turbid liquid enters the box body and is fully mixed with anaerobic bacteria under the action of a stirring device in the box body to degrade the sewage, and the process is a recyclable process. The utility model has the advantages of improving the wastewater treatment efficiency, simplifying the process and simplifying the cleaning of the box body.

Description

Sewage treatment plant is used in benzoic acid production

Technical Field

The utility model belongs to the field of sewage devices, and particularly relates to a sewage treatment device for benzoic acid production.

Background

Benzoic acid is an important organic chemical raw material, and has wide application in the aspects of medicines, foods, chemical industry and the like. A large amount of alkaline wastewater is generated in the synthesis process of benzoic acid, the components in the wastewater are complex, and if the wastewater is not effectively treated, the environmental pollution is easily caused.

The prior benzoic acid wastewater degradation mainly comprises aerobic degradation and anaerobic degradation, wherein the anaerobic degradation has low degradation rate of anaerobic organisms in a natural system, so that the wastewater treatment period is too long, and when a large amount of wastewater needs to be treated, no method can ensure higher treatment efficiency.

Secondly, generally, in the anaerobic degradation stage, by throwing in bacteria having the capability of anaerobically degrading benzoic acid, such as photosynthetic bacteria, denitrifying bacteria, and ferrous sulfate reducing bacteria, the bacteria are not sufficiently mixed with the wastewater after being thrown in, and the effect of wastewater treatment is also reduced.

Finally, a large amount of organic matters exist in the wastewater, and can generate dirt and sediment after being decomposed by anaerobic bacteria, the dirt is easy to scale on the inner wall of the degradation device, and after the dirt is accumulated for a long time, the degradation device is not convenient to clean in the later period, and the service life of the degradation device can be reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model discloses a sewage treatment device for benzoic acid production. The utility model makes full use of the matching of the tank body and the sewage pool to carry out circulating batch treatment on the wastewater,

in order to achieve the purpose, the technical scheme of the utility model is as follows:

a sewage treatment device for benzoic acid production, which comprises a box body and a sewage pool, wherein the upper end of the box body is provided with a detachable top cover, the top cover is rotatably provided with a transmission shaft, a first bearing is arranged in the box body and comprises a support frame, the first bearing is fixedly arranged at the bottom of the inner side of the box body through a support frame, a screw rod is fixedly sleeved in an inner ring of the first bearing, the upper end of the screw rod is detachably connected with a transmission shaft, the top end of the transmission shaft is fixedly sleeved in an inner ring of the bearing II, the top of the box body is provided with a motor, an output shaft of the motor penetrates through the top of the box body and is inserted into the inner ring of the bearing II to be connected with the top end of the transmission shaft, the screw rod is connected with a circular connecting block in a threaded manner, the circular connecting block is connected with the rectangular lifting frame through a connecting rod, the connecting rod is provided with a stirring device, and inner wall brushes are arranged around the rectangular lifting frame; the top of box sets up cyclone, be connected with the charge pump on cyclone's the stoste inlet pipe, stoste inlet pipe intercommunication charge pump extends to the effluent water sump and keeps away from one side of box, the cyclone top is provided with the supernatant back flow, and the bottom is provided with down the turbid liquid inlet pipe, be provided with the choke valve down on the turbid liquid inlet pipe, the turbid liquid inlet pipe runs through the box top down, one side that the bottom half is close to the effluent water sump is provided with the drainage pipe, the drainage pipe extends to one side that the effluent water sump is close to the box, installs the valve on the drainage pipe, the box top is provided with the nitrogen gas inflation valve and throws the fungus mouth.

The improved structure of the transmission shaft is characterized in that a first fixing block with a semicircular cross section is arranged at the upper end of the screw rod, a bolt hole is formed in the first fixing block, a second fixing block with a semicircular cross section is arranged at the lower end of the transmission shaft, a bolt hole is formed in the second fixing block, and the first fixing block and the second fixing block are fixedly spliced into a cylinder through bolts.

The improved lifting frame is further improved in that a connecting rod is installed at the position of a diagonal line inside the rectangular lifting frame, a stirring device is installed in the middle of the connecting rod and is in a disc shape with two sides protruding outwards, the stirring device is evenly distributed in the rectangular lifting frame, and the inner wall brushes are attached to the inner wall of the box body.

In a further improvement, one side of the box body is provided with a mounting rack, one end of the mounting rack is fixedly connected with the outer side wall of the box body through a nut, the other end of the mounting rack is provided with a bearing table, and an electric pump is fixedly mounted on the bearing table.

In a further improvement, supporting legs are arranged at four corners below the box body.

In a further improvement, the bottom of the box body is positioned higher than the highest position of the sewage pool.

The utility model has the advantages that:

1. the sewage tank and the anaerobic degradation box body are matched, so that waste liquid can be circularly treated, and the efficiency of treating the waste water is improved;

2. according to the utility model, the stirring device arranged in the box body can not only fully mix bacteria and water body during bacteria feeding, but also stir during drainage, so that sediment and liquid can be more smoothly mixed and discharged out of the box body;

3. the utility model has the function of timely descaling the inner wall of the box body, and avoids excessive dirt in the box body caused by long-time accumulation.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top view of the internal rectangular lifting frame of the present invention;

FIG. 3 is a schematic view of the connection of the lead screw and the transmission shaft;

FIG. 4 is a schematic view of a disk of the agitation apparatus.

In the figure: the device comprises a box body 1, a sewage pool 2, a top cover 3, a transmission shaft 4, a first bearing 5, a support frame 6, a screw rod 7, a second bearing 8, a motor 9, a rectangular lifting frame 10, a stirring device 11, an inner wall brush 12, a rotational flow divider 13, a stock solution feeding pipe 14, an electric pump 15, a supernatant liquid return pipe 16, a lower turbid liquid feeding pipe 17, a drainage pipe 18, a nitrogen gas charging valve 19, a bacterium throwing port 20, a first fixed block 21, a second fixed block 22, a connecting rod 23, a mounting frame 24, a bearing platform 25, supporting legs 26, a throttle valve 27 and a circular connecting block 28.

Detailed Description

The utility model is further explained with reference to the drawings and the embodiments.

Example 1

As shown in fig. 1, the sewage treatment device for benzoic acid production comprises a box body 1 and a sewage tank 2, wherein a detachable top cover 3 is arranged at the upper end of the box body 1, a transmission shaft 4 is rotatably mounted on the top cover 3, a first bearing 5 is arranged inside the box body 1, the first bearing 5 comprises a support frame 6, the first bearing 5 is fixedly mounted at the bottom of the inner side of the box body 1 through the support frame 6, a screw rod 7 is fixedly sleeved in an inner ring of the first bearing 5, the upper end of the screw rod 7 is detachably connected with the transmission shaft 4, the top end of the transmission shaft 4 is fixedly sleeved in an inner ring of a second bearing 8, a motor 9 is mounted at the top of the box body 1, an output shaft of the motor 9 penetrates through the top of the box body 1 and is connected with the top end of the transmission shaft 4 in the inner ring of the second bearing 8, a circular connecting block 28 is in threaded connection with the screw rod 7, and the circular connecting block 28 is connected with a rectangular lifting frame 10 through a connecting rod 23, the connecting rod 23 is provided with a stirring device 11, and the periphery of the rectangular lifting frame 10 is provided with inner wall brushes 12; the top of box 1 sets up cyclone 13, be connected with charge pump 15 on cyclone 13's the stoste inlet pipe 14, stoste inlet pipe 14 intercommunication charge pump 15 extends to the one side that box 1 was kept away from to effluent water sump 2, cyclone 13's top is provided with supernatant back flow 16, and the bottom sets up down turbid liquid inlet pipe 17, be provided with choke valve 27 down on the turbid liquid inlet pipe 17, turbid liquid inlet pipe 17 runs through the top of box 1 down, one side that the bottom of box 1 is close to effluent water sump 2 is provided with discharge tube 18, discharge tube 18 extends to one side that effluent water sump 2 is close to box 1, installs the valve on the discharge tube 18, box 1 top is provided with nitrogen gas charging valve 19 and throws fungus mouth 20. The upper end of the screw rod 7 is provided with a first fixing block 21 with a semicircular cross section, a bolt hole is formed in the first fixing block 21, a second fixing block 22 with a semicircular cross section is arranged at the lower end of the transmission shaft 4, a bolt hole is formed in the second fixing block 22, and the first fixing block 21 and the second fixing block 22 are fixedly spliced into a cylinder through bolts.

According to the working principle of the structure, waste liquid in the sewage pool 2 is conveyed to the cyclone separator 13 through the stock solution feeding pipe 14 by the electric pump 15, the cyclone separator 13 separates the waste liquid into supernatant and lower turbid liquid, the supernatant flows back to the sewage pool 2 through the supernatant return pipe 16, the waste water in the sewage pool 2 can be diluted, the lower turbid liquid controls the flow of the lower turbid liquid through the throttle valve 27, the concentration of the lower turbid liquid is controlled, the lower turbid liquid enters the box body 1 through the lower turbid liquid feeding pipe 17, anaerobic bacteria are fed into the box body 1 through the bacteria feeding port 20, at the moment, the motor 9 is started, the motor 9 transmits the rotating force to the transmission shaft 4, the transmission shaft 4 drives the screw rod 7 to rotate, at the moment, the rectangular lifting frame 10 can slide up and down, the stirring device 11 arranged on the rectangular lifting frame 10 can fully mix the bacteria and the waste water, nitrogen is filled into the nitrogen inflation valve 19 while stirring, keeping the reaction device in an anaerobic environment, scraping the inner wall of the box body 1 by the inner wall brush 12 on the outer side of the rectangular lifting frame 10 in the process of reciprocating up and down, and after stirring for a period of time, closing the motor 9 and the nitrogen inflation valve 19 to stop stirring, so as to carry out anaerobic decomposition. After the decomposition, motor 9 can be restarted, mix, the purpose of stirring this moment except cleaning the inner wall, also makes the mixture get rid of the box better, and the box 1 internal reaction produced gas is too much can be through throwing fungus mouth 20 exhaust, and the danger is avoided taking place in the step-down.

The process is a recyclable degradation process, and can be repeatedly recycled for degradation until the water body reaches the discharge standard.

While embodiments of the utility model have been disclosed above, it is not limited to the applications set forth in the description and embodiments, which are fully applicable to various fields of endeavor for which the utility model is intended, and further modifications may readily be effected therein by those skilled in the art, without departing from the general concept defined by the claims and their equivalents, which are to be limited not to the specific details shown and described herein.

Claims

1. The sewage treatment device for benzoic acid production comprises a rectangular box body (1) and a sewage tank (2), and is characterized in that the upper end of the box body (1) is a detachable top cover (3), a first bearing (5) is arranged inside the box body (1), the first bearing (5) comprises a support frame (6), the first bearing (5) is fixedly installed at the bottom of the inner side of the box body (1) through the support frame (6), a screw rod (7) is fixedly sleeved in an inner ring of the first bearing (5), a transmission shaft (4) is detachably connected to the upper end of the screw rod (7), the top end of the transmission shaft (4) is fixedly sleeved in an inner ring of a second bearing (8), a motor (9) is installed at the top of the box body (1), an output shaft of the motor (9) penetrates through the top of the box body (1) and is connected with the top end of the transmission shaft (4) in the inner ring of the second bearing (8), the screw rod (7) is in threaded connection with a circular ring-shaped connecting block (28), the circular ring-shaped connecting block (28) is connected with the rectangular lifting frame (10) through a connecting rod (23), the connecting rod (23) is provided with a stirring device (11), and the periphery of the rectangular lifting frame (10) is provided with inner wall brushes (12); the top of the box body (1) is provided with a cyclone separator (13), an electric pump (15) is installed on a stock solution feeding pipe (14) of the cyclone separator (13), the stock solution feeding pipe (14) is communicated with the electric pump (15) and extends to one side, far away from the box body (1), of the sewage pool (2), a supernatant liquid return pipe (16) is arranged at the top of the cyclone separator (13), a lower turbid liquid feeding pipe (17) is arranged at the bottom of the cyclone separator, a throttling valve (27) is arranged on the lower turbid liquid feeding pipe (17), the lower turbid liquid feeding pipe (17) penetrates through the top of the box body (1), a drainage pipe (18) is arranged at one side, close to the sewage pool (2), of the bottom of the box body (1), the drainage pipe (18) extends to one side, close to the box body (1), of the sewage pool (2), and a valve is installed on the drainage pipe (18); the top of the box body (1) is provided with a nitrogen inflation valve (19) and a bacterium feeding port (20).

2. The sewage treatment device for benzoic acid production according to claim 1, wherein the upper end of the screw rod (7) is provided with a first fixing block (21) with a semicircular cross section, the first fixing block (21) is provided with a bolt hole, the lower end of the transmission shaft (4) is provided with a second fixing block (22) with a semicircular cross section, the second fixing block (22) is provided with a bolt hole, and the first fixing block (21) and the second fixing block (22) are fixedly spliced into a cylinder shape through bolts.

3. The sewage treatment device for benzoic acid production as defined in claim 1, wherein a connecting rod (23) is installed at the diagonal position inside the rectangular lifting frame (10), a stirring device (11) is installed at the middle part of the connecting rod (23), the stirring device (11) is in the shape of a disc with two convex sides, the stirring device (11) is uniformly distributed in the rectangular lifting frame (10), and the inner wall brush (12) is attached to the inner wall of the box body (1).

4. The sewage treatment device for benzoic acid production according to claim 1, wherein a mounting rack (24) is provided at one side of the tank (1), one end of the mounting rack (24) is fixedly connected with the outer sidewall of the tank (1) through a nut, a bearing platform (25) is provided at the other end of the mounting rack (24), and an electric pump (15) is fixedly mounted on the bearing platform (25).

5. The sewage treatment device for benzoic acid production according to claim 1, wherein the four lower corners of the tank (1) are provided with support legs (26).

6. The sewage treatment device for benzoic acid production according to claim 1, wherein the bottom of said tank (1) is located at a position higher than the highest position of said sewage pool.