CN210796164U - Biochemical sewage treatment device - Google Patents

Abstract

The utility model discloses a biochemical sewage treatment device relates to sewage treatment technical field, and it is longer to have solved the sludge drying cycle, and the untimely technical problem of processing is piled up to mud. The technical key points comprise that: the device comprises a tank body, wherein a filter layer and a sludge-water collecting pipe are arranged at the bottom of the tank body, a bearing body is arranged in the tank body in a sliding manner, a sewage discharge door is arranged on one side of the bearing body, a second driving device for pushing the bearing body to slide is arranged on the tank body, a fixed support is arranged on the tank body, and a first driving device is arranged on the fixed support; the utility model has the advantage of shortening the sludge drying period.

Description

Biochemical sewage treatment device

Technical Field

The utility model relates to a sewage treatment technical field, more specifically say, it relates to a biochemical sewage treatment plant.

Background

The sludge treatment is an important component of sewage treatment, and the water content of the sludge discharged from the sedimentation tank is high, usually more than 95%, so that the sludge needs to be dried. The sludge drying pool removes most of water content from sludge through the functions of percolation or evaporation and the like, and generally refers to a self-evaporation facility such as a sludge drying bed.

The Chinese patent with the publication number of CN192912816U discloses a novel sludge drying tank, which comprises a tank body, sludge water collecting pipes distributed around the tank body and a sludge mixed liquid conveying pipeline penetrating through the tank wall and communicated with the tank body, wherein a dry sludge supporting plate with a water filtering hole is arranged inside the tank body, the free end of the dry sludge supporting plate is connected with an electric hoist, the electric hoist is arranged on the tank body through a fixed support to control the lifting of the dry sludge supporting plate, and the bottom of the tank body is provided with a coarse gravel filtering layer, a short-staple geotextile filtering layer, a fine gravel filtering layer and a fine sand filtering layer from bottom to top; the muddy water is retained on the dry mud supporting plate after being filtered step by step, then is naturally dried to form mud cakes, and the dry mud cakes are removed through the linkage of the dry mud supporting plate and the electric hoist.

The above prior art solutions have the following drawbacks: according to the technical scheme, the sludge is filtered and air-dried to form sludge cakes, then the sludge cakes are treated, if the sludge and the water are separated and naturally air-dried by the penetration of the filter layer, the sludge drying speed is low, the sludge drying period is long, and if the sludge drying treatment is not timely, the condition that a large amount of sludge is accumulated needs to be improved.

SUMMERY OF THE UTILITY MODEL

To the technical problem at present, an object of the utility model is to provide a biochemical sewage treatment plant, it has the advantage that shortens the sludge drying cycle.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a biochemical sewage treatment device comprises a tank body, a filter layer arranged at the bottom of the tank body, a sludge-water collecting pipe arranged on one side wall of the lower end of the tank body, a bearing body which is arranged in the tank body and provided with a water filtering hole at the bottom for separating sludge and water, a fixed support arranged on the tank body and a first driving device which is arranged on the fixed support and used for controlling the bearing body to lift, wherein the bearing body is arranged in a rectangular frame shape and is arranged in the tank body in a hanging manner, and a fixing component is arranged at the upper end of the bearing body and is detachably connected with the lower end of the first driving device; the both ends on the upper end width direction of the bearing body all are provided with first backup pad, be provided with on the cell body along the setting of bearing body length direction in order to be used for supplying the first guide rail that slides that the bearing body slided, first guide rail that slides sets up on the both sides of bearing body width direction, be provided with on the cell body in order to be used for promoting the bearing body along bearing body length direction reciprocating motion's second drive arrangement, second drive arrangement be located the ascending one side of bearing body length direction and with the bearing body between through dismantling and be connected.

By adopting the technical scheme, the bearing body in the rectangular frame shape can bear sludge more stably, and the fixing component is arranged between the bearing body and the first lifting device, so that the first driving device can lift the bearing body more stably; make the bearing body can be unsettled in the cell body through setting up first backup pad on the bearing body, slide along bearing body length direction through setting up first slide guide rail cooperation bearing body, through setting up second drive arrangement control bearing body reciprocating motion, rock the inside mud of bearing body at bearing body reciprocating motion's in-process, accelerate the separation of mud and water simultaneously, improve sludge drying's speed, shorten sludge drying's cycle.

The utility model discloses further set up to: the fixing assembly comprises fixing ropes fixedly arranged on the corners of the bearing body and fixing rings connected to the ends, far away from the bearing body, of the fixing ropes, and the fixing rings are connected with the first driving device.

Through adopting above-mentioned technical scheme, through each edge with fixed rope fixed setting and the bearing body for the bearing body can the atress more stable at the in-process that goes up and down, connect each fixed rope through setting up solid fixed ring and concentrate power with solid fixed ring on, prevent that first drive arrangement from leading to the atress inhomogeneous and taking place to empty the condition because of rocking at the lift in-process.

The utility model discloses further set up to: the second drive arrangement is including setting up the motor on the cell body, set up the rotating disc on the motor shaft outer end of motor, rotate the head rod of being connected and rotate the second connecting rod of being connected with the one end of keeping away from rotating disc with the head rod with the rotating disc outward flange, the one end that the head rod was kept away from to the second connecting rod is connected with the clutch, the clutch can be dismantled with the bearing body through setting up the joint portion on the bearing body and be connected, be provided with the second slide rail that is used for supplying the clutch to slide on the cell body, the motor shaft and the rotating disc coaxial line of motor set up, the head rod sets up on the axis vertically plane with the motor shaft of motor with the second connecting rod.

Through adopting above-mentioned technical scheme, utilize the motor to drive the rotating disc and rotate, the connecting rod structure through rotating disc and head rod, second connecting rod promotes the sliding block and is reciprocating motion along the second track that slides to realize the sliding block and promote the bearing body and be reciprocating motion in the cell body, realize vibrating the effect that the bearing body accelerates sludge drying rate.

The utility model discloses further set up to: the joint portion is including setting up in the second backup pad of bearing body one side and setting up in the joint piece that the one end of cell body was kept away from in the second backup pad set up downwards, be provided with the joint groove with joint piece looks adaptation on the sliding block.

Through adopting above-mentioned technical scheme, realize drive arrangement stable control bearing body reciprocating motion's effect through the cooperation that sets up joint piece and joint groove.

The utility model discloses further set up to: the two ends of the clamping groove are both arc-shaped.

Through adopting above-mentioned technical scheme, utilize curved good guide effect for the more stable joint of bearing body is on the sliding block.

The utility model discloses further set up to: the side of the bearing body far away from the second driving device is hinged with a sewage discharging door, and a locking device used for locking the sewage discharging door is arranged on one side wall of the sewage discharging door far away from the second driving device.

Through adopting above-mentioned technical scheme, through articulated on the bearing body have the blowdown door, will make things convenient for the staff to discharge the internal mud of bearing, control opening and closing of blowdown door through setting up locking device.

The utility model discloses further set up to: the locking device comprises a spring lock, a spring bolt of the spring lock is fixed on one side wall of the sewage discharge door, and a lock catch of the spring lock is fixed on one side edge of the supporting body in the height direction and matched with the spring bolt to lock the sewage discharge door.

Through adopting above-mentioned technical scheme, when deposiing, the blow-down door is pinned to the cylinder lock, prevents that the internal mud of bearing from running out of the bearing body, when clearance mud, unlocks the cylinder lock, can open the blow-down door to give the mud of scraping the inside.

The utility model discloses further set up to: the fixed support comprises a plurality of vertical rods vertically arranged on the tank body and a supporting frame arranged at the upper end of each vertical rod, a cross beam arranged along the length direction of the bearing body is arranged on the supporting frame, and the first driving device is connected to the cross beam in a sliding manner and moves along the length direction of the cross beam; the lower end of each vertical rod is horizontally provided with a reinforcing plate, the lower end of each vertical rod is provided with a plurality of reinforcing ribs which are arranged in an equidistance manner around the axis of the vertical rod in the circumferential direction, and each reinforcing rib is connected between each vertical rod and each reinforcing plate.

By adopting the technical scheme, the fixing frame comprises the vertical rods, the supporting frame and the cross beam, and the supporting plate is arranged at the lower end of each vertical rod and matched with the first driving device to provide a supporting carrier with a stable structure; the stability of the fixing support is increased by arranging the reinforcing plate and the reinforcing ribs.

The utility model discloses further set up to: all be provided with the nozzle that is used for washing the internal wall of bearing body on two corner positions of bearing body are kept away from to the fixed bolster upper end, be provided with on the cell body with the water pump of nozzle intercommunication, when the bearing body removed to the cell body top, two nozzles all set up towards the internal portion of bearing, are provided with on the cell body in order to be used for retrieving the accumulator who washes sewage.

Through adopting above-mentioned technical scheme, the internal mud of bearing is after the staff clearance, and it is internal at the bearing still to remain partly in addition, consequently sets up the cooperation of nozzle and water pump and washes the internal portion water spray of bearing towards the internal portion of bearing and hold internal wall, and the sewage after washing has the accumulator to retrieve to the effluent water sump.

The utility model discloses further set up to: the upper surface of the bottom of the bearing body is provided with filter cloth, and four corners of the filter cloth are locked at the bottom of the bearing body through screws.

By adopting the technical scheme, the filter cloth can prevent the water filtering holes at the bottom of the bearing body from being blocked to influence the water filtering to the filter layer on one hand, and can prevent sludge from permeating into the filter layer from the water filtering holes at the bottom of the bearing body to block the gap of the filter layer on the other hand, so that the replacement time of the filter layer is prolonged, the use cost is reduced, the sludge treatment effect is improved, and the operation and management are convenient; the filter cloth can be detachably connected to the bottom of the bearing body through screws, so that the filter cloth can be conveniently replaced by workers.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the first supporting plate and the sliding track are arranged on the supporting body and matched with the supporting body to do reciprocating sliding motion, and the second driving device is arranged to control the supporting body to do reciprocating sliding motion, so that the drying rate of sludge is increased, and the drying period of the sludge is shortened;

(2) the sewage discharging door is arranged on the bearing body, and the locking device is arranged on the outer wall of the sewage discharging door, so that the sewage discharging door is convenient for workers to discharge sludge;

(3) the fixing support comprises a vertical rod and a supporting frame, a cross beam is arranged on the supporting frame, a reinforcing plate and a reinforcing rib are arranged at the lower end of the vertical rod, and a stable supporting carrier of the first driving device is provided by the arrangement.

Drawings

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

FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of part A of FIG. 1;

fig. 4 is a schematic structural view of the support body of the present invention.

Reference numerals: 1. a tank body; 2. a filter layer; 3. a mud water collecting pipe; 4. a support body; 41. water filtering holes; 5. fixing a bracket; 51. a vertical rod; 52. a support frame; 6. a first driving device; 7. a fixing assembly; 71. fixing a rope; 72. a fixing ring; 8. a first support plate; 9. a first sliding guide rail; 10. a second driving device; 101. a motor; 102. rotating the disc; 103. a first connecting rod; 104. a second connecting rod; 105. a sliding block; 11. a clamping part; 111. a second support plate; 112. a clamping block; 12. a second glide rail; 13. a clamping groove; 14. a sewage draining door; 15. a locking device; 16. a cross beam; 17. a reinforcing plate; 18. reinforcing ribs; 19. a nozzle; 20. a water pump; 21. a recovery tank; 22. a filter cloth; 23. a screw; 24. a pulley.

Detailed Description

The utility model provides a biochemical sewage treatment device.

The present invention will be described in detail with reference to the accompanying drawings and examples, but the embodiments of the present invention are not limited thereto. It should be noted that the designations "first" and "second" in the present invention are only used for distinguishing the structures, and do not represent the order of sequence.

The utility model provides a biochemical sewage treatment plant, combine fig. 1, as shown in fig. 2, including cell body 1, set up in filter layer 2 of cell body 1 bottom, set up muddy water collecting pipe 3 on a lateral wall of cell body 1 lower extreme, set up in cell body 1 and the bottom has drainage hole 41 in order to be used for separating mud and water bearing body 4, set up on cell body 1 in order to be used for the fixed bolster 5 of supporting role and set up the first drive arrangement 6 that is used for controlling bearing body 4 lift on fixed bolster 5, the upper end of bearing body 4 is provided with fixed subassembly 7 and can dismantle with the lower extreme of first drive arrangement 6 and be connected, be provided with on the cell body 1 in order to be used for promoting bearing body 4 along bearing body 4 length direction reciprocating motion's second drive arrangement 10, second drive arrangement 10 is located one side of bearing body 4 length direction and through dismantling between the bearing body 4 and be connected.

As shown in fig. 2, the support body 4 is arranged in a rectangular frame shape and is suspended in the tank body 1, a filter cloth 22 is arranged on the upper surface of the bottom of the support body 4, four corners of the filter cloth 22 are locked to the bottom of the support body 4 through screws 23, the filter cloth 22 is arranged to prevent sludge from blocking a water filtering hole 41 for draining water at the bottom of the support body 4, and the filter cloth 22 is detachably connected to the bottom to facilitate a worker to replace the filter cloth 22; further, the bottom of the bearing body 4 is obliquely and downwards arranged along the length direction of the bearing body 4 and towards the direction of the sewage discharge door 14, so that the sludge is guided to be discharged, and the dried sludge is conveniently discharged by a worker.

Referring to fig. 1 and 4, a sewage discharging door 14 for discharging sludge is hinged to one side of the support body 4 away from the second driving device 10, a locking device 15 for locking the sewage discharging door 14 is arranged on one side wall of the sewage discharging door 14 away from the second driving device 10, the locking device 15 comprises a spring lock, a lock tongue of the spring lock is fixed on one side wall of the sewage discharging door 14, a lock catch of the spring lock is fixed on one side edge of the support body 4 in the height direction and is matched with the lock tongue to lock the sewage discharging door 14, and whether sludge is discharged or not is controlled by controlling the locking device 15 to be opened and closed.

Referring to fig. 1 and 4, the fixing assembly 7 includes a plurality of fixing ropes 71 fixedly disposed at the corners of the support body 4 for assisting the support body 4 to ascend and descend, and fixing rings 72 connected to the ends of the fixing ropes 71 far away from the support body 4, the fixing rings 72 are connected to the lower end of the first driving device 6, and the support body 4 is more stable in the ascending and descending process through the cooperation of the fixing ropes 71 and the fixing rings 72.

As shown in fig. 1, the fixing support 5 includes a plurality of vertical rods 51 vertically arranged on the tank body 1 and a supporting frame 52 arranged at the upper end of each vertical rod 51, each side of the supporting frame 52 is arranged to have an L-shaped cross section, a cross beam 16 arranged along the length direction of the supporting body 4 is arranged on the supporting frame 52, the cross beam 16 is made of i-steel, two ends of the cross beam 16 in the length direction are locked and fixed on the supporting frame 52 through bolts and nuts, and the first driving device 6 is connected to the cross beam 16 in a sliding manner and moves along the length direction of the cross beam 16; the lower end of each vertical rod 51 is horizontally provided with a reinforcing plate 17, the lower end of each vertical rod 51 is provided with a plurality of reinforcing ribs 18 which are circumferentially arranged around the axis of each vertical rod 51 at equal intervals, each reinforcing rib 18 is connected between each vertical rod 51 and each reinforcing plate 17, and the arrangement provides a more stable supporting carrier for the first driving device 6; in particular, the first drive means 6 is provided as an electric block.

As shown in fig. 1, nozzles 19 for washing the inner wall of the supporting body 4 are arranged at two corner positions of the upper end of the fixing support 5 far away from the supporting body 4, a water pump 20 communicated with the nozzles 19 is arranged on the tank body 1, when the supporting body 4 moves to the upper side of the tank body 1, the two nozzles 19 are arranged towards the inside of the supporting body 4, a recovery tank 21 for recovering and washing sewage is arranged on the tank body 1, water is extracted by the water pump 20 to the position of the nozzles 19 and is jetted towards the inside of the supporting body 4, and the residual sludge is cleaned, and the cleaned sewage is recovered to the sewage tank through the recovery tank 21.

As shown in fig. 1, both ends on the upper end width direction of the supporting body 4 are all provided with first backup pad 8, be provided with the first guide rail 9 that slides that sets up along the 4 length direction of supporting body on the cell body 1, be provided with a plurality of along the first guide rail 9 length direction equidistance of sliding and arrange in order to be used for reducing the pulley 24 of the frictional force between first backup pad 8 and the first guide rail 9 that slides in the first guide rail 9 that slides, the outer anchor ring of each pulley 24 sets up with the lower surface laminating of first backup pad 8, first guide rail 9 that slides sets up on the both sides of the 4 width direction of supporting body, be provided with on the cell body 1 in order to be used for promoting the second drive arrangement 10 that supporting body 4 along the 4 length direction reciprocating motion of supporting.

Wherein, as shown in fig. 1 and fig. 3, the second driving device 10 includes a motor 101 disposed on the tank body 1, a rotating disc 102 disposed on the outer end of the motor shaft of the motor 101, a first connecting rod 103 rotatably connected to the outer edge of the rotating disc 102, and a second connecting rod 104 rotatably connected to one end of the first connecting rod 103 far from the rotating disc 102, one end of the second connecting rod 104 far from the first connecting rod 103 is connected to a sliding block 105, the sliding block 105 is detachably connected to the supporting body 4 through a clamping portion 11 disposed on the supporting body 4, the tank body 1 is provided with a second sliding guide rail 12 for sliding the sliding block 105, the motor shaft of the motor 101 is coaxially disposed with the rotating disc 102, the first connecting rod 103 and the second connecting rod 104 are disposed on a plane perpendicular to the axis of the motor shaft of the motor 101, so that the motor shaft of the motor 101 is used to drive the rotating disc 102, the connecting rod structure of the rotating disc 102, the first connecting rod 103 and the second connecting rod 104 is used for pushing the sliding block 105 to reciprocate along the second sliding track, so that the sliding block 105 pushes the bearing body 4 to reciprocate in the tank body 1, and the effect of vibrating the bearing body 4 to accelerate the sludge drying rate is realized.

Further, as shown in fig. 1 and fig. 3, the clamping portion 11 includes a second support plate 111 disposed on one side of the support body 4 and a clamping block 112 disposed downward on one end of the second support plate 111 away from the tank body 1, a clamping groove 13 adapted to the clamping block 112 is disposed on the sliding block 105, and the effect that the sliding block 105 pushes the support body 4 to reciprocate is achieved through clamping engagement between the clamping block 112 and the clamping groove 13; further, the both ends of joint groove 13 all are the arc form setting, utilize curved good guide effect to assist the better joint of joint piece 112 in second backup pad 111 in the joint groove 13 of sliding block 105.

The utility model discloses a working process and beneficial effect as follows: when sludge is placed in the bearing body 4, the second driving device 10 is started to push the bearing body 4 to move back and forth along the length direction of the bearing body 4, after the sludge is dried, a worker controls the first driving device 6 to ascend upwards by sleeving the fixing ring 72 at the lower end of the first driving device 6 until the lower end of the bearing body 4 is lifted above the upper end of the tank body 1, controls the first driving device 6 to slide along the length direction of the cross beam 16, starts the spring lock and opens the sewage discharge door 14 to discharge the sludge, the sludge remained in the bearing body 4 is scraped by the worker, and then the water pump 20 is started after the sludge is scraped, and the nozzle 19 is flushed towards the inside of the bearing body 4; after the cleaning is finished, the sewage discharging door 14 is closed and the spring lock is locked, the bearing body 4 is moved to the position right above the pool body 1 and moves downwards through the first driving device 6, the bearing body 4 is held by a worker to prevent the bearing body 4 from shaking until the clamping block 112 on the second supporting plate 111 is clamped in the clamping groove 13 to restore the bearing body 4 to the original position.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a biochemical sewage treatment plant, including cell body (1), set up in filter layer (2) of cell body (1) bottom, set up muddy water collecting pipe (3) on a lateral wall of cell body (1) lower extreme, set up in cell body (1) and the bottom have water straining hole (41) in order to be used for separating bearing body (4) of mud and water, set up fixed bolster (5) on cell body (1) and set up first drive arrangement (6) that are used for controlling bearing body (4) to go up and down on fixed bolster (5), its characterized in that: the support body (4) is arranged in a rectangular frame shape and is suspended in the pool body (1), and a fixing assembly (7) is arranged at the upper end of the support body (4) and is detachably connected with the lower end of the first driving device (6); the bearing support device is characterized in that first supporting plates (8) are arranged at two ends of the upper end of the bearing support body (4) in the width direction, first sliding guide rails (9) which are arranged along the length direction of the bearing support body (4) and used for sliding the bearing support body (4) are arranged on the pool body (1), the first sliding guide rails (9) are arranged on two sides of the width direction of the bearing support body (4), second driving devices (10) which are used for pushing the bearing support body (4) to move back and forth along the length direction of the bearing support body (4) are arranged on the pool body (1), and the second driving devices (10) are located on one side of the length direction of the bearing support body (4) and are detachably connected with the bearing support body (4).

2. The biochemical sewage treatment apparatus according to claim 1, wherein: the fixing assembly (7) comprises fixing ropes (71) fixedly arranged on the corners of the bearing body (4) and fixing rings (72) connected to one ends, far away from the bearing body (4), of the fixing ropes (71), and the fixing rings (72) are connected with the first driving device (6).

3. The biochemical sewage treatment apparatus according to claim 2, wherein: the second driving device (10) comprises a motor (101) arranged on the tank body (1), a rotating disc (102) arranged at the outer end of a motor shaft of the motor (101), a first connecting rod (103) rotatably connected with the outer edge of the rotating disc (102) and a second connecting rod (104) rotatably connected with one end, far away from the rotating disc (102), of the first connecting rod (103), one end of the second connecting rod (104) far away from the first connecting rod (103) is connected with a sliding block (105), the sliding block (105) is detachably connected with the bearing body (4) through a clamping part (11) arranged on the bearing body (4), a second sliding guide rail (12) for sliding the sliding block (105) is arranged on the tank body (1), the motor shaft of the motor (101) is coaxially arranged with the rotating disc (102), the first connecting rod (103) and the second connecting rod (104) are arranged on a plane vertical to the axis of a motor shaft of the motor (101).

4. The biochemical sewage treatment apparatus according to claim 3, wherein: joint portion (11) including set up in second backup pad (111) of bearing body (4) one side and set up in joint piece (112) that the one end of second backup pad (111) keeping away from cell body (1) set up downwards, be provided with joint groove (13) with joint piece (112) looks adaptation on sliding block (105).

5. The biochemical sewage treatment apparatus according to claim 4, wherein: the two ends of the clamping groove (13) are both arc-shaped.

6. The biochemical sewage treatment apparatus according to claim 1, wherein: the sewage draining door is characterized in that a sewage draining door (14) is hinged to one side, away from the second driving device (10), of the bearing body (4), and a locking device (15) used for locking the sewage draining door (14) is arranged on one side wall, away from the second driving device (10), of the sewage draining door (14).

7. The biochemical sewage treatment apparatus according to claim 6, wherein: the locking device (15) comprises a spring lock, a lock tongue of the spring lock is fixed on one side wall of the sewage discharge door (14), and a lock catch of the spring lock is fixed on one side edge of the support body (4) in the height direction and matched with the lock tongue to lock the sewage discharge door (14).

8. The biochemical sewage treatment apparatus according to claim 1, wherein: the fixed support (5) comprises a plurality of vertical rods (51) vertically arranged on the tank body (1) and supporting frames (52) arranged at the upper ends of the vertical rods (51), a cross beam (16) arranged along the length direction of the bearing body (4) is arranged on each supporting frame (52), and the first driving device (6) is connected to the cross beam (16) in a sliding manner and moves along the length direction of the cross beam (16); the lower end of each vertical rod (51) is horizontally provided with a reinforcing plate (17), the lower end of each vertical rod (51) is provided with a plurality of reinforcing ribs (18) which are circumferentially distributed around the axis of each vertical rod (51) at equal intervals, and each reinforcing rib (18) is connected between each vertical rod (51) and each reinforcing plate (17).

9. The biochemical sewage treatment apparatus according to claim 8, wherein: all be provided with nozzle (19) that are used for washing support body (4) inner wall on two corner positions of support body (4) are kept away from to fixed bolster (5) upper end, be provided with water pump (20) with nozzle (19) intercommunication on cell body (1), when support body (4) remove to cell body (1) top, two nozzle (19) all set up towards support body (4) inside, be provided with on cell body (1) in order to be used for retrieving recovery tank (21) of the sewage after washing.

10. The biochemical sewage treatment apparatus according to claim 1, wherein: the upper surface of the bottom of the bearing body (4) is provided with a filter cloth (22), and four corners of the filter cloth (22) are locked at the bottom of the bearing body (4) through screws (23).

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