CN210656348U

CN210656348U - Leachate biochemical reaction tank

Info

Publication number: CN210656348U
Application number: CN201921506524.2U
Authority: CN
Inventors: 刘伟; 刘滨
Original assignee: Guizhou Ourui Xinhe Environmental Protection Co ltd
Current assignee: Guizhou Ourui Xinhe Environmental Protection Co ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-06-02
Anticipated expiration: 2029-09-10

Abstract

The scheme discloses a leachate biochemical reaction tank in the field of garbage leachate treatment equipment, which comprises a cleaning device and an oxidation tank; the oxidation tank comprises an aeration device, a tank body and biological balls, and the biological balls are positioned in the tank body; the aeration device comprises an aeration fan and an aeration pipe communicated with the aeration fan, and the aeration pipe is positioned at the bottom of the tank body; the cleaning device comprises a cleaning box, a submersible pump and a cleaning mechanism for cleaning the biological balls, wherein the submersible pump and the cleaning mechanism are both positioned in the cleaning box; the wall body of the tank body is provided with a channel for communicating the tank body with the cleaning box, and a sliding plate for opening and closing the tank body is connected in the channel in a sliding manner. The leachate biochemical reaction tank in the scheme can be cleaned quickly by the cleaning mechanism.

Description

Leachate biochemical reaction tank

Technical Field

The utility model belongs to landfill leachate treatment facility field, in particular to filtration liquid biochemical reaction pond.

Background

The landfill leachate is a high-concentration organic or inorganic liquid generated under the seepage action of precipitation and groundwater due to the biochemical degradation action of material compaction, fermentation and the like in the stacking or landfill process of the garbage. The leachate contains various toxic and harmful inorganic and organic matters, and also contains non-chlorinated aromatic compounds such as naphthalene and phenanthrene, chlorinated aromatic compounds, vinegar phosphate, phenolic compounds, aniline compounds and the like which are difficult to biodegrade, and the leachate has complex water quality and great harm to the environment.

The current treatment process forms of the landfill leachate mainly comprise an activated sludge method, a stabilization pond, a biological rotating disk, an anaerobic fixed membrane bioreactor and the like. Because the components of the percolate are complex, the activated sludge method can play a good role in decomposing organic matters and the like, and can effectively reduce harmful substances in the percolate, thereby being widely used. In the activated sludge method, the most main link belongs to an aerobic tank; the current aerobic tank is mainly characterized in that activated sludge is placed in a tank body, then an aeration pipe is arranged at the bottom of the tank body, air is injected into the aeration pipe through an aeration fan, and then oxygen is supplied to aerobic bacteria in the tank body through the aeration pipe.

Although the mode can still achieve a good effect, a large amount of activated sludge needs to be used, and the large amount of activated sludge can make more activated sludge enter a subsequent water body purification stage; and key equipment in links of nanofiltration and the like can be blocked by activated sludge, so that the service life of the equipment is greatly shortened, and the cost investment is increased. In order to solve the problem, the applicant can greatly reduce the use of the activated sludge by putting biological balls (hollow plastic balls) and flow-off balls (hollow plastic balls with volcanic rocks placed inside) into the tank body. But the colored glaze ball has higher cost and limited service life; therefore, the subsequent further improvement is carried out, and the similar effect can be achieved only by putting the biological ball; however, after the biological balls are used for a period of time, the interior of the biological balls is filled with impurities, sludge, germs and the like, so that the decomposition effect of biological bacteria on organic matters in the percolate is seriously influenced. Therefore, the applicant has made further studies on the cleaning work of the bio-ball in response to the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a leachate biochemical reaction tank to realize the quick cleaning of biological balls in an aerobic tank.

The leachate biochemical reaction tank in the scheme comprises a cleaning device and an oxidation tank; the oxidation tank comprises an aeration device, a tank body and biological balls, and the biological balls are positioned in the tank body; the aeration device comprises an aeration fan and an aeration pipe communicated with the aeration fan, and the aeration pipe is positioned at the bottom of the tank body; the cleaning device comprises a cleaning box, a submersible pump and a cleaning mechanism for cleaning the biological balls, wherein the submersible pump and the cleaning mechanism are both positioned in the cleaning box; the water outlet end of the submersible pump is communicated with the tank body, a channel for communicating the tank body with the cleaning box is arranged on the wall body of the tank body, and a sliding plate for opening and closing the tank body is connected in the channel in a sliding mode.

The working principle and the beneficial effects of the scheme are as follows: after the bio-ball in the pond used the certain time, opened the passageway between pond body and washing case through the sliding plate, the bio-ball in the pond body enters into and washs the incasement, meanwhile, starts the immersible pump and will wash the incasement water and take out the pond body in, reduces the come-up of bio-ball in wasing the incasement, all enters into when the bio-ball and washs the incasement back, washs the bio-ball of incasement fast through wiper mechanism. After the biological balls are cleaned, water is injected into the bottom of the cleaning box, and the biological balls can quickly enter the pool body for continuous use.

Further, the cleaning mechanism comprises a vent pipe, and the vent pipe is communicated with the aeration fan. After the aeration fan is communicated with the aeration pipe, the air with higher air pressure flowing out of the aeration pipe can clean the biological ball.

Further, the cleaning mechanism also comprises a motor and a cleaning brush driven by the motor. The biological ball is cleaned by the cleaning brush driven by the motor, so that the efficiency is higher.

Further, the cleaning brush comprises a cam and brushes fixed on two sides of the cam. By adopting the cam mode, when the motor drives the cam to rotate, the brushes on the two sides of the cam can clean the biological balls in contact with the cam, and can stir the biological balls in the rotating process, so that the biological balls can be cleaned uniformly.

Further, be equipped with the spout on the outer fringe of cam, sliding connection has the connecting rod in the spout, fixedly connected with fretwork's lifter plate on the connecting rod, the lifter plate with the inner wall of wasing the case is laminated mutually. Through the lifter plate that sets up the fretwork, drive the lifter plate when the cam rotates and go up and down, and then adjust the degree of compaction of biological ball for the biological ball is in the shock state in aqueous, more is favorable to the washing to the biological ball, and at lifter plate decline in-process simultaneously, when the breather pipe washs it, because the effect of blockking up of hiding of lifter plate, reduces the rise distance of biological ball, makes the gas that the trachea came out bigger to the impact force of biological ball, washs more thoroughly.

Further, the vertical sliding connection of sliding plate is in the wall body of cell body, and the top threaded connection of sliding plate has the threaded rod, can dismantle on the threaded rod to be connected with the lifter, and the lifter is located directly over the lifter. Through setting up lifter and threaded rod, the height of adjustable lifter is adjusted to the length of adjustment threaded rod in the sliding plate, and when suitable position, the lift of lift control sliding plate of accessible lifter plate, and then realize the switching of passageway.

Further, the lifting rod is detachably connected with the lifting plate. The lifting rod and the lifting plate are detachably connected, so that the connection between the lifting plate and the lifting rod can be realized quickly.

Furthermore, a vent pipe is also arranged on the inner wall of one side of the pool body, which is far away from the channel, and the vent pipe is communicated with the aeration fan. The inner wall of the side of the tank body far away from the channel is provided with the vent pipe, so that the biological balls can be blown into the cleaning tank through the vent pipe; meanwhile, the percolate can be directly injected into the tank body, so that the oxygen content of the percolate is increased.

Drawings

Fig. 1 is a schematic structural diagram of the biochemical reaction tank for leachate of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the aeration device comprises a tank body 1, an aeration pipe 2, activated sludge 3, biological balls 4, an aeration fan 5, an air duct 6, an air duct 7, a channel 8, a sliding plate 9, a screw cap 10, a lifting rod 11, a cleaning box 12, a lifting plate 13, a connecting rod 14, a cam 15, a rotating shaft 16, a brush 17, a sliding groove 18, a belt 19, a motor 20 and an air nozzle 21.

Example 1 is substantially as shown in figure 1: the leachate biochemical reaction tank comprises a cleaning device and an oxidation tank; the oxidation pond comprises an aeration device, a pond body 1, activated sludge 3 and biological balls 4, and the biological balls 4 are positioned in the pond body 1; the aeration device comprises an aeration fan 5 and an aeration pipe 2, the aeration pipe 2 is positioned at the bottom of the tank body 1, the aeration fan 5 is fixed on the outer wall of the tank body 1, the air outlet of the aeration fan 5 is communicated with an air duct 6, and the air duct 6 is provided with three air vents; the cleaning device comprises a cleaning box 12, a submersible pump and a cleaning mechanism for cleaning the biological balls 4, wherein the submersible pump and the cleaning mechanism are both positioned in the cleaning box 12; the water outlet end of the submersible pump is communicated with the tank body 1, a channel 8 for communicating the tank body 1 with the cleaning tank 12 is arranged on the wall body of the tank body 1, a sliding plate 9 for opening and closing the channel 8 is vertically and slidably connected in the channel 8, and the top of the sliding plate 9 penetrates out of the upper surface of the tank body 1; the cleaning mechanism comprises a motor 20, a rotating shaft 16, a cleaning brush and air pipes 7 which are respectively arranged at the bottom of the cleaning box 12 and on the inner wall of the side of the pool body 1 far away from the channel 8, a plurality of air outlets are uniformly distributed on the air pipes 7, and air nozzles 21 are respectively arranged at the air outlets; the aeration pipe 2 and the two vent pipes 7 are respectively communicated with the three air guide holes in a sealing way and are respectively provided with a one-way air outlet valve, and the one-way air outlet valves are close to the air guide holes; a supporting plate is arranged on the outer wall of the cleaning box 12, a motor 20 is fixed on the supporting plate, an output shaft of the motor 20 is in transmission connection with a rotating shaft 16 through a belt 19, and the rotating shaft 16 is rotatably connected in the cleaning box 12; the cleaning brush includes cam 15 and fixes brush 17 in cam 15 both sides, cam 15 fixed connection is in pivot 16, be equipped with spout 18 in the outer fringe of cam 15, sliding connection has connecting rod 14 in spout 18, fixedly connected with fretwork lifter plate 13 on the connecting rod 14, the lateral wall of lifter plate 13 is laminated mutually with the inner wall of wasing case 12, the top threaded connection of sliding plate 9 has the threaded rod, be connected with lifter 11 through nut 10 on the threaded rod, lifter 11 is located lifter plate 13 directly over and passes through threaded connection with lifter plate 13.

The specific implementation process is as follows: after the bio-ball 4 is used for a period of time, the motor 20 is started, the motor 20 drives the cam 15 to rotate, the lifting plate 13 is further controlled to lift, the lifting plate 13 is used for controlling the lifting of the sliding plate 9, and when the sliding plate 9 rises, the motor 20 is stopped. Then starting the aeration fan 5, wherein the air flow generated by the aeration fan 5 partially enters the air duct 6, and the air flow flowing out of the air nozzle 21 at one side far away from the channel 8 impacts the biological ball 4, so that the biological ball moves to one side of the channel 8 and enters the cleaning box 12; in order to avoid the floating of the biological balls 4 in the cleaning tank 12, the aeration fan 5 is started until the biological balls 4 in the tank body 1 completely enter the cleaning tank 12. The submersible pump is turned off, the lifting plate 13 is rotated, the lifting rod 11 is disengaged from the lifting plate 13, and the channel 8 is closed by the sliding plate 9. The motor 20 is started, the motor 20 drives the cam 15 to rotate, and the bio-ball 4 is quickly cleaned under the combined action of the breather pipe 7 and the hairbrush 17 in the cleaning box 12. After the biological ball 4 is cleaned, the lifting rod 11 and the lifting plate 13 are connected, the motor 20 drives the cam 15 to rotate, the cam 15 drives the lifting plate 13 to lift, the lifting plate 13 drives the lifting rod 11 to lift, after the sliding plate 9 rises, the motor 20 is closed, water is injected into the bottom of the cleaning box 12 through an external water source, and the biological ball 4 is impacted and floated into the pool body 1 through water flow. In order to avoid the excessive air pressure in the cleaning tank 12, the wall body of the cleaning tank 12 is provided with an air outlet.

Embodiment 2 is different from embodiment 1 only in that the air duct 6 is provided with a control valve for controlling the on-off of the air flow of the air duct 7 and the aeration pipe 2. Through the setting of control valve, can conveniently control the operating condition of breather pipe 7 and aeration pipe 2, more be favorable to going on of concrete work (when needing to wash biological ball 4, close breather pipe 7 and aeration pipe 2 in the cell body 1, the effect is better).

Claims

1. The leachate biochemical reaction tank comprises a cleaning device and an oxidation tank; the oxidation tank comprises an aeration device, a tank body and biological balls, and the biological balls are positioned in the tank body; the aeration device comprises an aeration fan and an aeration pipe communicated with the aeration fan, and the aeration pipe is positioned at the bottom of the tank body; the method is characterized in that: the cleaning device comprises a cleaning box, a submersible pump and a cleaning mechanism for cleaning the biological balls, wherein the submersible pump and the cleaning mechanism are both positioned in the cleaning box; the water outlet end of the submersible pump is communicated with the tank body, a channel for communicating the tank body with the cleaning box is arranged on the wall body of the tank body, and a sliding plate for opening and closing the tank body is connected in the channel in a sliding mode.

2. The leachate biochemical reaction tank as set forth in claim 1, wherein: the cleaning mechanism comprises a vent pipe, and the vent pipe is communicated with the aeration fan.

3. The leachate biochemical reaction tank as set forth in claim 2, wherein: the cleaning mechanism further comprises a motor and a cleaning brush driven by the motor.

4. The leachate biochemical reaction tank as set forth in claim 3, wherein: the cleaning brush comprises a cam and brushes fixed on two sides of the cam.

5. The leachate biochemical reaction tank as set forth in claim 4, wherein: the outer fringe of cam is equipped with the spout, and sliding connection has the connecting rod in the spout, fixedly connected with fretwork's lifter plate on the connecting rod, the lifter plate with the inner wall of wasing the case is laminated mutually.

6. The leachate biochemical reaction tank as set forth in claim 5, wherein: the vertical sliding connection of sliding plate is in the wall body of cell body, and the top threaded connection of sliding plate has the threaded rod, can dismantle on the threaded rod to be connected with the lifter, and the lifter is located directly over the lifter.

7. The leachate biochemical reaction tank as set forth in claim 6, wherein: the lifting rod is detachably connected with the lifting plate.

8. The leachate biochemical reaction tank as set forth in claim 7, wherein: the inner wall of one side of the pool body, which is far away from the channel, is also provided with a vent pipe which is communicated with the aeration fan.