CN212440183U - Raising-inhibiting concentrated absorption bin for submersible mud suction truck - Google Patents

Abstract

The utility model discloses a raising-inhibiting concentrated absorption bin for a submersible mud suction truck, which comprises a plurality of mud scrapers arranged below a mud suction pipe and raising-inhibiting plates arranged on the mud suction pipe; every four mud scrapers form an X-shaped structure around one mud suction port; the cross section of the anti-lifting plate is in a shape of Chinese character 'ren', the sludge suction pipe is a high point, and two ends of the sludge suction pipe are inclined downwards. The utility model has the advantages that the mud scraper is arranged on the mud suction vehicle, mud suction and mud discharge are carried out simultaneously, the mud discharge efficiency is higher, and the sedimentation tank can be kept free from mud accumulation; the sludge is removed by adopting a sludge suction mode, and the design limitation of the existence of a sludge collection pit in the sedimentation tank is avoided. The mud suction unit adopts a mode of walking and sucking at the same time, has smaller sludge resistance, adopts the lifting-inhibiting gradually-reducing closed type absorption bin, improves the concentration of sludge at a suction port, can greatly reduce energy consumption and improve sludge discharge concentration, has a sludge concentration function, and does not cause the sludge at the bottom of the sedimentation tank to be lifted.

Description

Raising-inhibiting concentrated absorption bin for submersible mud suction truck

Technical Field

The utility model belongs to the field of machinery, concretely relates to it raises concentrated type absorption bin to press down for dive formula suction dredge.

Background

The sedimentation tank in the sewage treatment process of the sewage treatment plant is an important link for removing suspended matters in the sewage, and whether the sedimentation sludge at the bottom of the sedimentation tank can be normally and effectively removed is also an important function of the sedimentation tank. The general sedimentation tank is divided into three types according to the water flow direction in the tank: horizontal flow, vertical flow, and horizontal flow. In order to improve the efficiency of deposiing, shorten the settling time, reduce the sedimentation tank volume, through set up the sedimentation swash plate of slope setting additional in the pond, the sedimentation swash plate can be become by a plurality of boards that are parallel to each other, or parallel pipe is constituteed, generally calls the sedimentation swash plate in this application, and it is used for blockking the particulate matter, impels its sediment. The sewage containing suspended matters sinks to the bottom of the sedimentation tank to be sedimentated under the action of gravity and medicines or blocked by a sedimentation inclined plate during the period from the inlet to the outlet of the sedimentation tank. Then the sludge is scraped by a special sludge scraper and collected by a sludge hopper, and is discharged out of the tank by a water pressure difference or a sludge pump. The mud scraper plays a key role in the process.

According to the mud discharging machine matched with different forms of the sedimentation tank, a truss car type mud scraper, a truss car type mud suction machine, a steel cable reciprocating type mud scraper, a double chain type mud scraper, an oil pressure reciprocating type mud scraper, a single rail type mud scraper and a sleeve type mud suction machine are generally adopted for the horizontal flow type sedimentation tank.

The truss-type mud scraper is characterized in that two parallel guide rails are mounted on walls on two sides of the top of a rectangular horizontal flow sedimentation tank, a truss vehicle which moves back and forth is mounted on the guide rails, the truss vehicle drives a mud scraping rake attached to the bottom of the tank below through a scraping arm to scrape deposited mud at the bottom of the tank to a mud collecting pit, and then the mud is discharged through a mud discharge pipe embedded in the mud collecting pit. The truss-car type mud scraper has the following defects: 1. the cable needs to move along with a vehicle, is complex in wiring, can move outdoors for a long time, and is easy to have aging and abrasion faults; 2. after the sludge is scraped to the sludge collection pit, the sludge discharge pipe is easily blocked and the sludge cannot be discharged due to the existence of fibrous objects and other complex objects in the sludge; 3. the scraping arms extend from the surface of the tank to the bottom of the tank, so that the high-efficiency sedimentation tank (also called a high-density sedimentation tank) provided with the sedimentation inclined plates cannot be used.

The truss car type suction dredge is characterized in that a scraping rake of the dredge is changed into a row of suction dredge ports, the suction dredge ports move along with a truss car, and sludge at the bottom of a pool is discharged out of the pool through a water pressure difference or a sludge pump while the sludge is moved. The sludge suction port can be provided with suction pipes to the bottom of the tank at several points below the travelling crane according to the process, or can be provided with sludge suction pipes along the two ends of the travelling crane close to the lower parts of the tank walls at the two sides, and then the sludge at the bottom of the tank is penetrated through by a transverse pipe and is discharged through the suction ports arranged on the transverse pipe. The suction dredge can not be used in a high-efficiency sedimentation tank (also called a high-density sedimentation tank) provided with a sedimentation inclined plate.

The horizontal flow type efficient sedimentation tank adopts a steel cable reciprocating mud scraper, a double-chain mud scraper, an oil pressure reciprocating mud scraper, a single-rail mud scraper and a sleeve type suction dredge at present, the devices do not have a sedimentation inclined plate cleaning device, sludge can be attached to the sedimentation inclined plate after running for a period of time, the sedimentation effect is deteriorated, the water quality and the water outlet efficiency are directly influenced, therefore, the previous efficient (high-density) sedimentation tank can remove the sludge on the inclined plate mainly through closing a gate, stopping the water inlet and the machine stop of the efficient sedimentation tank and draining water, and then manual cleaning is adopted, so that the time and labor are wasted, the production is influenced, and unnecessary expenses are increased.

The sleeve type suction dredge does not have the function of scraping and concentrating sludge, so the water content of the discharged sludge is higher, the load is increased for the subsequent procedure treatment, and in addition, the sludge suction port cannot reach the full coverage of the bottom of the pool due to the arrangement, so the phenomena of floating of the dead sludge and the like can be caused.

Most of the existing mud suction machines do not have the functions of mud scraping and mud concentration suction, the mud suction efficiency is influenced, and the energy consumption is improved.

SUMMERY OF THE UTILITY MODEL

To above-mentioned one or more shortcoming, combine the design production experience for a plurality of years, the utility model provides a possess and scrape concentrated mud function be used for submersible suction dredge press down concentrated type absorption bin.

The technical scheme of the utility model a provide a but that is used for dive formula suction dredge raises concentrated type absorption bin, this suction dredge includes hollow suction dredge, be provided with a plurality of suction dredge mouth that is used for inhaling silt, its characterized in that under the suction dredge: the pumping inhibition concentrated absorption bin comprises a plurality of mud scraping plates arranged below the mud suction pipe and a pumping inhibition plate arranged on the mud suction pipe; every four mud scraping plates form an X-shaped structure around one mud suction port; the cross section of the anti-lifting plate is in a shape of Chinese character 'ren', the sludge suction pipe is a high point, and two ends of the sludge suction pipe are inclined downwards.

Preferably, a flow blocking stick is arranged below the mud suction pipe and in parallel with the mud suction pipe.

Preferably, the suction dredge further comprises a rail wheel set rolling in the main rail of the groove structure.

Preferably, the two sides of the main track are symmetrically provided with auxiliary tracks with groove structures, and the suction dredge further comprises auxiliary track wheels rolling in the auxiliary tracks.

Preferably, a sleeve is arranged along the main track, one end of a traction ring chain is connected with one end of the suction dredge, and the other end of the traction ring chain penetrates through the sleeve to be connected with the other end of the suction dredge; the sleeve is coaxially arranged with the main track.

Preferably, the suction pipe is connected to a hose to discharge the sludge through the hose.

The utility model discloses a but be used for concentrated type absorption bin of raising of dive formula suction dredge has following beneficial effect:

(1) the utility model has the advantages that the mud scraper is arranged on the mud suction vehicle, mud suction and mud discharge are carried out simultaneously, the mud discharge efficiency is higher, and the sedimentation tank can be kept free from mud accumulation; the sludge is removed by adopting a sludge suction mode, the design limitation of the existence of a sludge collection pit in the sedimentation tank is avoided, and the application range is wider; the suction dredge adopts a mode of walking and sucking at the same time, has smaller sludge resistance, adopts the lifting-inhibiting gradually-reducing closed type absorption bin, improves the concentration of sludge at a suction port, can greatly reduce energy consumption and improve sludge discharge concentration, has a sludge concentration function, and does not cause the sludge at the bottom of the sedimentation tank to be lifted.

(2) The mud suction machine has the advantages that the centrally symmetrical single-ring chain transmission is used, so that the mud suction machine is uniformly stressed, one chain runs in the sleeve at the overlapping position of the chains in two directions through the sleeve, and the condition that the chains in the two directions are mutually interfered and wound to cause abnormal running due to the overlapping of the chains is avoided.

Drawings

FIG. 1 is a schematic structural view of a submersible suction dredge;

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

FIG. 3 is a sectional view taken along line B-B of FIG. 1;

FIG. 4 is a schematic view of the structure of a suction dredge cutterhead;

fig. 5 is a top view of the suction dredge of the present invention;

FIG. 6 is a sectional view taken along line A-A of FIG. 5;

FIG. 7 is a schematic view of the construction of the working state of the suction dredge group;

FIG. 8 is a schematic view of the structure of the driving device;

fig. 9 is a schematic structural view of the driving device.

Detailed Description

The following describes in further detail embodiments of the present invention.

As shown in fig. 1 to 9, the submersible suction dredge of the present invention is applied to a horizontal flow type high efficiency tank 10. The bottom of the horizontal flow type high-efficiency pool 10 is provided with a main rail 12 with a groove structure along the water flow direction, and two sides of the main rail 12 are symmetrically provided with auxiliary rails 14 with groove structures; the horizontal flow type high-efficiency tank 10 is provided with a sedimentation sloping plate 16 which is vertical to the water flow direction, the sedimentation sloping plate 16 is composed of a plurality of short plates or short pipes, and the short plates or the short pipes are arranged at intervals in a row or are arranged at intervals in a plurality of rows. The short plate or pipe is inclined towards the water flow to form a wall structure for blocking the water flow and particles therein and promoting the particles in the water flow to settle. The inclined settling plates 16 are of a construction that is common in the industry and not the point of innovation of the present invention, and are not shown in detail. The submersible suction dredge is a submersible suction dredge group 18 which reciprocates at the bottom of the horizontal flow type high-efficiency pool 10, namely below the sedimentation sloping plate 16 (in the embodiment, a plurality of suction dredge combinations are adopted, and a single suction dredge can also achieve the aim of the invention). The suction dredge group 18 comprises one or more rigidly connected suction dredge 20, and each suction dredge 20 comprises a plurality of suction dredge ports 21 for sucking sludge; the suction dredge group 18 is also provided with a cleaning device 23 for cleaning the inclined sedimentation plate 16 by air bubbles or high-pressure water under the inclined sedimentation plate 16.

In this embodiment, the suction dredge cutterhead 18 includes a rigid structural frame 22. The frame 22 includes a main pipe 24 parallel to the direction of water flow, and the main pipe 24 is a hollow pipe. The two ends of the main pipe 24 are respectively provided with a mud suction truck 20, each mud suction truck 20 is provided with a plurality of mud scrapers 26, and every four mud scrapers 26 form an X-shaped structure around the mud suction port 21. The suction dredge 20 includes a suction pipe 28 perpendicular to the main pipe 24, the suction pipe 28 is a pipe communicated with the main pipe 24, and the suction port and the scraper 26 are disposed below the suction pipe 28. The main pipe 24 is connected to a hose 32 through a hard pipe (i.e., the suction pipe 28) or directly, and the hose 32 is connected to a sludge pump 34 through a pipe, so that sludge is discharged from the sludge pump 34. Each suction dredge 20 further comprises a pumping-inhibiting plate 36 arranged on the suction pipe 28, the cross section of the pumping-inhibiting plate 36 is herringbone, the suction pipe 28 is used as a high point, and two ends of the pumping-inhibiting plate are inclined downwards. The pumping-inhibiting plate 36 cooperates with the mud-scraping plate 26 to form a relatively closed space, thereby increasing the concentration of the mud, improving the efficiency of mud suction, and helping to block the pressure of the mud above and avoid blocking the mud suction port.

Further, in order to improve the sludge suction efficiency, a flow blocking rod 40 is arranged below the sludge suction pipe 28 and in parallel with the sludge suction pipe 28, and the flow blocking rod 40 is slightly higher than the bottom of the tank, so that the sludge at the bottom of the tank is stirred upwards to be sucked away by the sludge suction port.

The suction dredge 20 has a set distance to ensure that at least one suction dredge group 18 passes through each position at the bottom of the horizontal flow type high-efficiency pool 10 during the unidirectional movement of the suction dredge group 18, thereby ensuring that each position is sucked by the suction dredge 20.

The embodiment of the utility model provides an in drive arrangement adopt motor to add single chain transmission mode, relative double-chain structure, simple structure, maintenance convenience. The specific structure of the driving device is as follows: a front rail wheel set 42 and a rear rail wheel set 44 which roll in the main rail 12 are arranged below the main pipe 24, and auxiliary rail wheels (not shown) which roll in the auxiliary rails 14 are arranged at two ends of the suction dredge 20; also included is an intermediate trolley 46 disposed for rolling movement in the main track 12, the intermediate trolley 46 being connected to the carriage 22 by a support bar 48 for supporting the carriage 22. The front rail wheel set 42 and the rear rail wheel set 44 each include rollers (not shown) that roll in the main track 12 and limit rollers (not shown) to ensure that the front rail wheel set 42 and the rear rail wheel set 44 do not deviate or disengage from the main track 12. Symmetrically disposed auxiliary rail wheels roll in the auxiliary rail 14 to ensure that the truck 20 does not deviate from direction. A front guide wheel set 48 and a rear guide wheel set 50 are respectively arranged at two ends of the main track 12, the front guide wheel set 48 and the rear guide wheel set 50 are both arranged at the bottom of the horizontal flow type efficient pool 10, a traction ring chain 52 is sleeved on the front guide wheel set 48 and the rear guide wheel set 50, and a motor 54 drives the traction ring chain 52 to rotate around the front guide wheel set 48 and the rear guide wheel set 50 through a driving chain wheel 58. The suction dredge group 18 is fixedly arranged on the drag ring chain 52, and the front and back movement is realized through the rotation of the drag ring chain 52. The leading and trailing wheelsets 48, 50 are conventional and are not shown in detail.

An output shaft of the motor 54 is connected to a drive sprocket 58 through a speed reducer 56 via a coupling 57, the drive sprocket 58 drives a lead screw 62 to rotate via a bevel gear set 60, and the lead screw 62 is disposed between two bearings (not shown) perpendicular to the output shaft of the motor 54. The specific structure is that a conical gear (not shown) is arranged at the center of the driving chain wheel 58, another conical gear (not shown) is sleeved on the lead screw 62, and the two conical gears are meshed, so that the lead screw 62 is driven to rotate by the rotation of the driving chain wheel 58. The lead screw 62 is connected with 2 feeler lever nuts 64 in a threaded manner, and further comprises a slide rail (not shown) for limiting the feeler lever nuts 64 to rotate around the axis of the lead screw 62, and two travel switches 66 which can be contacted with the feeler lever nuts 64 and can be triggered are arranged in the middle of the travel of the feeler lever nuts 64. When the driving chain wheel 58 drives the traction ring chain 52 to move, the feeler lever nuts 64 move along the lead screws 62, and the travel switches 66 are respectively arranged at the positions of the feeler lever nuts 64 corresponding to the positions when the suction dredge group 18 moves to the two-end travel limit points, so that the feeler lever nuts 64 contact the travel switches 66 at the moment, the motor 54 is stopped or reversed, and the suction dredge group 18 is protected. The structure is hard limiting, and no error is accumulated, so that the safety is improved.

Two regulating wheels 68 are arranged in front of the driving chain wheel 58, and the traction chain 52 passes through the driving chain wheel 58 after passing around one regulating wheel 68 and then passes around the other regulating wheel 68. A sliding rod 70 is obliquely arranged between the two adjusting wheels 68 and the driving chain wheel 58, and a spring 72 and a sliding block 74 capable of moving on the sliding rod 70 are sleeved on the sliding rod 70. The slider 74 is rotatably provided with a tension wheel 76 abutting against the traction link chain 52, and the tension wheel 76 is driven to abut against the traction link chain 52 under the elastic force of the spring 72. A torque control switch 78 which can contact and trigger the tension wheel 76 is arranged on the stroke of the tension wheel 76; the torque control switch 78 is used to force the tension wheel 76 to move backward to press the spring 72 under the condition that the traction ring chain 52 is tensioned, until the tension wheel 76 contacts the torque control switch 78, so that the motor 54 is stopped or reversed; both the travel switch 66 and the torque control switch 78 are connected to a control device (not shown) and the motor 54 is controlled by the control device. The effect is that in the event of a high resistance to movement of the suction dredge cutterhead 18, the tension wheel 76 monitors the change in tension on the drag link chain 52 and if it encounters the torque control switch 78, this indicates that the motor 54 has reached a dangerous ground level, so that the torque control switch 78 causes the motor 54 to be stopped or reversed, thereby protecting the motor 54.

Further, a sleeve 80 is provided along the main track 12, one end of the drag link chain 52 is connected to one end of the suction dredge group 18, and the other end of the drag link chain 52 passes through the sleeve 80 to be connected to the other end of the suction dredge group 18. The bushings 80 are provided at positions where the outgoing and incoming directions of the traction link chain 52 coincide, and the outgoing or incoming chain is provided in the bushings 80 so as to avoid contact therebetween, thereby causing entanglement and malfunction.

The cleaning device 23 includes a bracket 82 provided on the suction dredger group 18, a washing pipe 84 having a plurality of washing ports is provided on the frame 22, and the washing pipe 84 is connected to an air compressor 86 or a water pump (not shown) through a pipe 85 (hose). When the sludge suction truck group 18 moves below the precipitation inclined plate 16, bubbles are generated by an air compressor regularly or irregularly, the bubbles are discharged through a flushing port, and the precipitation inclined plate 16 is flushed and cleaned by the bubbles; or the water pump generates high-pressure water to wash and clean the inclined sedimentation plate 16. The automatic operation can be realized, the labor intensity is reduced, and the production efficiency is improved.

The bottom of the horizontal flow type high-efficiency tank 10 can cause serious sludge accumulation due to various reasons such as long-term shutdown or large sewage amount, and the movement of the sludge suction truck group 18 is influenced, so that the sludge suction truck group 18 is trapped in sludge. The forced movement may cause the drag link chain 52 to break. In order to solve the problem, the automatic getting rid of poverty of the suction dredge group 18 is realized, the utility model also designs a working method capable of automatically getting rid of poverty, which comprises the following steps:

1) the motor 54 rotates in a first direction, and drives the traction ring chain 52 to rotate around the front guide wheel group 48 and the rear guide wheel group 50 through the driving chain wheel 58, so as to drive the suction dredge group 18 to move at the bottom of the advection type high-efficiency pool 10 until a set stroke end point is reached; during the movement of the suction dredge group 18, if the tension wheel 76 triggers the torque control switch 78, executing the step 4);

2) the motor 54 rotates towards the second direction to drive the suction dredge group 18 to move reversely at the bottom of the advection type high-efficiency pool 10 until the set stroke end point; during the movement of the suction dredge group 18, if the tension wheel 76 triggers the torque control switch 78, executing the step 4);

3) repeating step 1);

4) a step of escaping from poverty, which comprises the following steps:

4.1) stopping the motor 54, and carrying out in-situ mud suction operation on the mud suction truck group 18 for a set time; the set time can be 3-10 seconds;

4.2) starting the motor 54 to drive the suction dredge group 18 to move continuously in the original moving direction;

4.3) if the tension roller 76 still triggers the torque control switch 78, repeating the steps 4.1-4.2) for a plurality of times, for example, 3-4 times;

4.4) if the tension wheel 76 still triggers the torque control switch 78, the motor 54 rotates reversely to drive the suction dredge group 18 to move in the direction opposite to the original moving direction by a preset retraction stroke; the motor 54 is then reversed to continue the suction dredge cutterhead 18 in the original direction of travel. The preset backspacing distance is set according to actual needs, for example, 1-3 meters.

By the method, the resistance of the suction dredge group 18 is monitored at any time, and once the resistance is too large, the suction dredge is firstly sucked in situ to reduce the resistance; if not, go backward and then go forward again. Through the back-and-forth progressive moving mode, a better escaping effect can be achieved, and the suction dredge group 18 can effectively work.

The above embodiments are merely embodiments of the present invention, which are described in detail and specific, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (6)

1. A restrain and raise concentrated type absorption bin for submersible suction dredge, this suction dredge include hollow suction pipe, be provided with a plurality of suction opening that is used for inhaling silt under the suction pipe, its characterized in that: the pumping inhibition concentrated absorption bin comprises a plurality of mud scraping plates arranged below the mud suction pipe and a pumping inhibition plate arranged on the mud suction pipe; every four mud scraping plates form an X-shaped structure around one mud suction port; the cross section of the anti-lifting plate is in a shape of Chinese character 'ren', the sludge suction pipe is a high point, and two ends of the sludge suction pipe are inclined downwards.

2. A heave-suppressing concentrated absorption bin for a submersible dredge car according to claim 1, wherein: and a flow blocking rod is arranged below the sludge suction pipe and in parallel with the sludge suction pipe.

3. A heave-suppressing concentrated absorption bin for a submersible dredge car according to claim 1, wherein: the suction dredge also comprises a rail wheel set rolling in the main rail of the groove structure.

4. A heave-suppressing concentrated absorption bin for a submersible dredge car according to claim 3, wherein: auxiliary rails with groove structures are symmetrically arranged on two sides of the main rail, and the suction dredge further comprises auxiliary rail wheels rolling in the auxiliary rails.

5. A heave-suppressing concentrated absorption bin for a submersible dredge car according to claim 3, wherein: a sleeve is arranged along the main track, one end of a traction ring chain is connected with one end of the suction dredge, and the other end of the traction ring chain penetrates through the sleeve to be connected with the other end of the suction dredge; the sleeve is coaxially arranged with the main track.

6. A heave-suppressing concentrated absorption bin for a submersible dredge car according to claim 1, wherein: the sludge suction pipe is communicated with a hose to discharge sludge through the hose.

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