Truss type suction dredger and horizontal sedimentation tank

Abstract

The utility model discloses a truss type suction dredger and a horizontal sedimentation tank, and belongs to the technical field of water treatment.The truss type suction dredger comprises a truss and a cleaning unit, the cleaning unit comprises a sludge suction device, and the sludge suction device comprises a pump frame, a sludge suction pump, a sludge suction nozzle and a sludge suction pipe; the horizontal sedimentation tank comprises a sedimentation tank body and a suction dredge, and the cleaning unit further comprises a flushing device and a scrubbing device; running tracks are arranged on the left outer side wall and the right outer side wall of the sedimentation tank body; the suction dredger is arranged on the running track through a walking mechanism; the suction dredger is the truss type suction dredger; the flushing pipe of the flushing device is connected with the high-pressure water source, so that flushing water supplied by the high-pressure water source can be sprayed out from the flushing nozzle to flush sludge adhered to the bottom of the sedimentation tank, and the effect of removing the sludge at the bottom of the sedimentation tank is improved; and the brushing motor of the brushing device can drive the roller type brush to rotate to brush the side wall surface of the tank chamber of the sedimentation tank, so that the cleaning effect on the sedimentation tank is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a truss type sludge suction machine and a horizontal flow sedimentation tank. Background Art

[0002] The horizontal flow sedimentation tank is an important part of the water treatment process and one of the common process structures in existing water treatment plants. Its main function is to remove solid pollutants such as colloids, impurities, and tiny particles suspended in the sewage that can be precipitated. After the raw water enters the sedimentation tank, it is mixed with flocculants such as polyaluminum iron, causing the suspended colloidal particles in the water to condense and gradually settle to the bottom of the sedimentation tank to become sludge. Excessive accumulation of sludge at the bottom will affect the effluent quality, so it needs to be discharged in time through the corresponding sludge discharge device.

[0003] The truss type sludge suction machine is one of the commonly used sludge discharge devices in the sedimentation tank. Its characteristics are: reciprocating work, sludge suction while walking, little interference to sludge, simple equipment structure, and convenient operation and management. The existing truss type sludge suction machine generally includes a truss, a driving device, a sludge suction device and an electronic control device. The truss is set on the running rails laid on both sides of the sedimentation tank through the walking mechanism. The driving device is used to drive the walking mechanism to drive the truss and its parts to move along the running rails. The sludge suction device is mainly composed of a sludge suction pump, a sludge suction nozzle and a sludge suction pipe. The sludge suction device is installed on the truss through a pump frame. The sludge suction nozzle is set at the bottom of the pump frame and extends into the bottom of the sedimentation tank. The sludge suction pump is connected to the sludge suction nozzle through the sludge suction nozzle and can suck the sludge through the sludge suction nozzle through the sludge suction pipe and discharge it to the sludge discharge groove outside the tank through the sludge discharge pipe; the electronic control device is used to power the truss type sludge suction machine and control its operation.

[0004] In actual production and use, it is found that the existing truss-type dredge suction machine cannot fully meet the production needs. The main technical problems are as follows:

[0005] 1) The sludge at the bottom of the horizontal flow sedimentation tank is not evenly settled. Generally, the sludge level decreases continuously from the water inlet to the water outlet. The existing truss-type sludge suction machine lacks the sludge level detection function, and cannot control the walking speed of the truss-driven sludge suction device and the start and stop of the sludge suction device according to the sludge level, resulting in poor sludge suction effect;

[0006] 2) Lack of flushing function, unable to thoroughly clean the sludge adhering to the bottom of the pool;

[0007] 3) Lack of scrubbing function, unable to clean the side wall of the sedimentation tank chamber, especially the sludge adhering to the upper part of the side wall. Utility Model Content

[0008] The purpose of the utility model is to provide a truss type sludge suction machine and a horizontal flow sedimentation tank to solve the following technical problems.

[0009] The purpose of the utility model can be achieved through the following technical solutions:

[0010] A truss-type dredge suction machine comprises a truss and a cleaning unit, wherein the cleaning unit comprises a dredge suction device, and the dredge suction device comprises a pump frame, a dredge suction pump, a dredge suction nozzle and a dredge suction pipe;

[0011] The pump frame is arranged vertically, and its upper end is connected to the truss;

[0012] The dredge suction pump is arranged on the truss;

[0013] The mud suction nozzle is arranged at the bottom of the pump frame;

[0014] One end of the mud suction pipe is connected to the sewage suction port of the mud suction pump, and the other end is connected to the mud suction nozzle;

[0015] The cleaning unit also includes a flushing device and a brushing device;

[0016] The flushing device comprises a flushing nozzle arranged at the bottom of the pump frame, and a flushing pipe connected to the flushing nozzle;

[0017] The scrubbing device includes a scrubbing motor arranged on a truss, and a roller brush rotatably arranged and drivingly connected to the scrubbing motor; the roller brush corresponds to the near-wall side of the pump frame, and the near-wall side of the pump frame is the side portion thereof that can correspond to the side wall surface of the pool chamber of the sedimentation tank.

[0018] Further, the cleaning unit includes two sets of flushing devices and two sets of brushing devices;

[0019] The flushing nozzles of the two flushing devices are respectively located at the front and rear sides of the mud suction nozzle;

[0020] The roller brushes of the two groups of brushing devices are respectively located on the left and right sides of the pump frame.

[0021] Furthermore, the cleaning unit also includes a scraper, which is arranged at the bottom of the pump frame, and the lower edge of the scraper is lower than the mud suction nozzle and the flushing nozzle.

[0022] Furthermore, the truss type dredge suction machine also includes a dredge discharge pipe;

[0023] There are at least two cleaning units, which are arranged at intervals along the length direction of the truss;

[0024] One end of the mud discharge pipe is used to extend into the mud discharge groove, and the other end is connected with mud discharge branch pipes equal in number to the mud suction pumps, and each mud discharge branch pipe is connected to the sewage outlet of each mud suction pump in a one-to-one correspondence.

[0025] Furthermore, both left and right ends of the truss are provided with a walking mechanism; the walking mechanism includes a walking wheel rotatably arranged at the bottom of the truss, and a driving device arranged on the truss and drivingly connected to the walking wheel.

[0026] Furthermore, the truss type sludge suction machine also includes a control system, which includes an electric control box, a local controller and a sludge level meter;

[0027] The electric control box is arranged on the truss;

[0028] The local controller is arranged in the electric control box, is communicatively connected with the cleaning unit, and is electrically connected with the driving device through the frequency converter;

[0029] The sludge level meter is arranged on the truss and is communicatively connected with the local controller, and is used for detecting the material level height of the sludge in the sedimentation tank.

[0030] The utility model also provides a horizontal flow sedimentation tank, comprising a sedimentation tank body and a sludge suction machine;

[0031] The left and right outer walls of the sedimentation tank body are both provided with running tracks, and the running tracks are arranged along the front-back direction;

[0032] The sludge suction machine is arranged on a running track through a walking mechanism;

[0033] The sludge suction machine is the above-mentioned truss-type sludge suction machine, and its cleaning unit extends into the tank chamber of the sedimentation tank body;

[0034] The roller brush is in contact with the side wall surface of the pool chamber.

[0035] Furthermore, both the front and rear ends of the running track are provided with limit devices and travel switch contact rods;

[0036] The truss is provided with a travel switch corresponding to the travel switch contact rod, and the travel switch is electrically connected to the walking mechanism.

[0037] Furthermore, the sedimentation tank body has at least two tank chambers spaced apart from each other.

[0038] The number of the cleaning units is equal to the number of the pool chambers, each cleaning unit is arranged in one-to-one correspondence with each pool chamber, and the cleaning units in different pool chambers can be controlled to work independently.

[0039] Furthermore, the advection sedimentation tank also includes a power supply device, which includes a busbar and a power receiving element;

[0040] The busbar is arranged along the length direction of the running track;

[0041] The power receiving element is electrically connected to the sludge suction machine and can move synchronously with the truss, and the power receiving element is in sliding contact with the busbar.

[0042] The beneficial effects of the utility model are as follows: the cleaning unit of the truss-type sludge suction machine also includes a flushing device and a brushing device. During use, by connecting the flushing pipe of the flushing device to a high-pressure water source, the flushing water supplied by the high-pressure water source can be sprayed from the flushing nozzle 221 to flush the sludge adhered to the bottom of the sedimentation tank, so as to improve the effect of removing the sludge on the bottom of the tank; the brushing motor of the brushing device can drive the roller brush to rotate to brush the side wall surface of the tank chamber of the sedimentation tank, so as to improve the cleaning effect of the sedimentation tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The utility model is further described below in conjunction with the accompanying drawings.

[0044] Figure 1 It is a schematic diagram of the implementation structure of the truss type dredge suction machine in the utility model;

[0045] Figure 2 It is a side view structural schematic diagram of the truss type dredge suction machine of the utility model;

[0046] Figure 3 yes Figure 1 Schematic diagram of the implementation structure of the middle scrubbing device;

[0047] Figure 4 yes Figure 1 Schematic diagram of the implementation structure of the walking mechanism;

[0048] Figure 5 It is a schematic diagram of the implementation structure of the horizontal flow sedimentation tank in the utility model.

[0049] In the figure: 100, truss; 210, mud suction device; 211, pump frame; 212, mud suction pump; 213, mud suction nozzle; 214, mud suction pipe; 220, flushing device; 221, flushing nozzle; 222, flushing pipe; 223, flushing control valve; 230, brushing device; 231, brushing motor; 232, roller brush; 240, scraper; 300, mud discharge pipe; 310, mud discharge branch pipe; 320, anti-siphon valve; 4 00, walking mechanism; 410, walking wheel; 420, driving device; 421, driving motor; 422, reducer; 430, coupling; 500, mud discharge ditch; 610, electric control box; 700, sedimentation tank body; 710, running track; 720, tank chamber; 730, limit device; 740, travel switch contact rod; 750, travel switch; 800, power supply device; 810, busbar; 820, power receiving element. DETAILED DESCRIPTION

[0050] The utility model is further described below in conjunction with the accompanying drawings. The same reference numerals in the accompanying drawings represent components with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positions, and dimensional relationships based on the directions or position relationships shown in the accompanying drawings, and are only for the convenience of description, and do not indicate or imply that the referred device or component must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0052] The term "transmission connection" refers to: a connection method used to transmit power or motion in a mechanical system, for example: a connection method achieved through a transmission mechanism such as a coupling 430, a reducer, a gear assembly, a worm gear assembly, etc. The term "rotatably arranged" refers to a connection method between two parts so that one of the parts can rotate relative to the other part; this connection method is usually achieved using mechanical components such as bearings, sleeves, and shaft hole fittings. When the term "multiple" represents a quantity, it usually refers to a quantity of three or more, for example: "multiple" usually refers to three or more. The expression "mainly composed of..." is interpreted as also containing structural components not mentioned in the sentence. The term "communication connection" refers to the communication between connected devices through the transmission interaction of signals, which can be divided into wired connection and wireless connection; wired connection is usually a connection such as cable, optical fiber, etc.; wireless connection is usually a connection such as radio communication, Bluetooth, infrared, NFC, etc.

[0053] Combination Figure 1 , Figure 2 and Figure 3 As shown, the first embodiment of the utility model provides a truss-type dredger, comprising a truss 100 and a cleaning unit;

[0054] The truss 100 is mainly used to install and carry other parts of the truss type suction dredger, and is usually a crossbeam member formed by connecting rods by welding, riveting or bolting;

[0055] The cleaning unit is mainly used to clean the chamber 720 of the sedimentation tank, and the cleaning unit includes a sludge suction device 210, a flushing device 220 and a scrubbing device 230;

[0056] The sludge suction device 210 discharges most of the sludge in the pool chamber 720 mainly by suction. The sludge suction device 210 includes a pump frame 211, a sludge suction pump 212, a sludge suction nozzle 213 and a sludge suction pipe 214. The pump frame 211 is arranged vertically, and its upper end is connected to the truss 100. The sludge suction pump 212 is arranged on the truss 100. The sludge suction nozzle 213 is arranged at the bottom of the pump frame 211. One end of the sludge suction pipe 214 is connected to the sewage suction port of the sludge suction pump 212, and the other end of the pipe is connected to the sludge suction nozzle 213.

[0057] The flushing device 220 includes a flushing nozzle 221 disposed at the bottom of the pump frame 211, and a flushing pipe 222 connected to the flushing nozzle 221; when in use, the flushing pipe 222 is generally connected to a high-pressure water source, which can generally provide a flushing water body with a pressure of more than 1000 pounds per square inch (psi), and the flushing water body is sprayed from the flushing nozzle 221 to flush the sludge adhered to the bottom of the sedimentation tank, so as to improve the effect of removing the sludge at the bottom of the tank; in order to facilitate flushing control, a flushing control valve 223 for controlling the flow rate of the flushing water body is generally provided on the flushing pipe 222;

[0058] The scrubbing device 230 includes a scrubbing motor 231 arranged on the truss 100, and a roller brush 232 rotatably arranged and transmission-connected to the scrubbing motor 231; the roller brush 232 corresponds to the near-wall side of the pump frame 211, and the near-wall side of the pump frame 211 is a side portion thereof that can correspond to the side wall surface of the pool chamber 720 of the sedimentation tank; in this way, when the truss-type sludge suction machine is applied to the sedimentation tank, the roller brush 232 can contact the side wall surface of the pool chamber 720 of the sedimentation tank, and when in use, the scrubbing motor 231 is used to drive the roller brush 232 to rotate, so as to scrub the side wall surface of the pool chamber 720 of the sedimentation tank.

[0059] Combination Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the cleaning unit includes two groups of flushing devices 220 and two groups of brushing devices 230; the flushing nozzles 221 of the two groups of flushing devices 220 are respectively located at the front and rear sides of the mud suction nozzle 213; the roller brushes 232 of the two groups of brushing devices 230 are respectively located at the left and right sides of the pump frame 211. The two flushing nozzles 221 arranged in front and back can respectively flush the sludge adhering to the bottom of the pool in the front and rear directions of the mud suction nozzle 213, so that the mud suction nozzle 213 can effectively suck out the sludge with the reciprocating motion of the truss 100. The two roller brushes 232 arranged in the left and right can respectively scrub the left and right side walls of the pool chamber 720 of the sedimentation tank, further improving the cleaning effect.

[0060] For example Figure 2As shown, in some embodiments of the present invention, the flushing nozzle 221 located at the front side of the mud suction nozzle 213 is arranged with the nozzle facing forward and downward; the flushing nozzle 221 located at the rear side of the mud suction nozzle 213 is arranged with the nozzle facing backward and downward. The nozzle is arranged toward the front and downward, or toward the rear and downward, so that the flushing water sprayed by the flushing nozzle 221 can form a function similar to a plowshare, so as to flush down the sludge adhering to the bottom of the pool, further improving the cleaning effect.

[0061] For example Figure 1 As shown, in some embodiments of the present invention, the cleaning unit further includes a scraper 240, which is disposed at the bottom of the pump frame 211, and whose lower edge is lower than the mud suction nozzle 213 and the flushing nozzle 221. The scraper 240 can reciprocate with the truss 100 to scrape away the mud near the mud suction nozzle 213 and the flushing nozzle 221, so as to prevent the mud from clogging the mud suction nozzle 213 and the flushing nozzle 221, thereby ensuring the mud suction and flushing effects.

[0062] For example Figure 1 As shown, in some embodiments of the utility model, the truss-type sludge suction machine further includes a sludge discharge pipe 300; there are at least two cleaning units, which are arranged at intervals along the length direction of the truss 100; one end of the sludge discharge pipe 300 is used to extend into the sludge discharge groove 500, and the other end of the pipe is connected to a sludge discharge branch pipe 310 equal to the number of sludge suction pumps 212, and each sludge discharge branch pipe 310 is connected to the sewage outlet of each sludge suction pump 212 in a one-to-one correspondence. Each sludge suction pump 212 can be controlled uniformly or independently to clean the sludge in the pool chamber 720. The sludge discharge pipe 300 is mainly used to discharge the sludge sucked by each sludge suction pump 212 into the sludge discharge groove 500; in order to prevent the sludge from flowing back due to the siphon effect, an anti-siphon valve 320 is usually provided on the sludge discharge pipe 300.

[0063] Specifically, the truss type dredge suction machine generally further includes a traveling mechanism 400 for facilitating its reciprocating motion on the sedimentation tank. The traveling mechanism 400 may be a wheeled traveling mechanism, a crawler traveling mechanism, a traction traveling mechanism, or the like.

[0064] Combination Figure 1 and Figure 4 As shown, in some embodiments of the present invention, a walking mechanism 400 is provided at both ends of the truss 100; the walking mechanism 400 includes a walking wheel 410 rotatably provided at the bottom of the truss 100, and a driving device 420 provided on the truss 100 and drivingly connected to the walking wheel 410. The walking mechanism 400 has the advantages of simple structure and convenient operation.

[0065] For example Figure 4As shown, in some embodiments of the present invention, the driving device 420 includes a driving motor 421 and a reducer 422 connected to the driving motor 421, so as to control the speed of the driving device 420 driving the truss 100 and increase the output torque. The reducer 422 can be of various types, preferably a cycloid pinwheel reducer with high transmission efficiency, stable and reliable operation.

[0066] Specifically, the output shaft of the reducer 422 is connected to the axle of the travel wheel 410 via a coupling 430 , and the coupling 430 is used to transmit the power output of the reducer 422 to the axle of the travel wheel 410 , thereby achieving a driving connection to the travel wheel 410 .

[0067] In some embodiments of the utility model, the truss type sludge suction machine also includes a control system, which includes an electric control box 610, a local controller and a sludge level meter; the electric control box 610 is arranged on the truss 100; the local controller is arranged in the electric control box 610, which is connected to the cleaning unit in communication, and is electrically connected to the drive device 420 through the frequency converter; the sludge level meter is arranged on the truss 100 and is connected to the local controller in communication, and is used to detect the material level height of the sludge in the sedimentation tank. The local controller is mainly used to control the operation of the truss type sludge suction machine according to preset instructions, which can be multiple, preferably a PLC controller. The sludge level meter can be multiple, preferably an ultrasonic sensor, and the different working modes of the cleaning unit are adjusted by the detection result of the sludge liquid level, so as to realize the automatic control of the internal cleaning of the tank chamber 720, and the different modes ensure the cleaning effect on the one hand, and effectively save the energy required for cleaning on the other hand, and reduce the cleaning cost. Controlling the drive device 420 through the frequency converter is conducive to effectively controlling the speed of the drive device 420 driving the truss 100, and then based on the detection result of the sludge level meter, the truss 100 can be controlled to move slowly at a position where the sludge level is higher, such as moving at a speed of 0.5m / min, so that the sludge suction device 210 can effectively remove the sludge; the truss 100 can be controlled to move quickly at a position where the sludge level is lower, such as moving at a speed of 1.5m / min, to avoid sucking out too much water and causing waste of water resources and electricity.

[0068] In some embodiments of the present invention, the control system further comprises a remote controller, which is communicatively connected with the local controller, so that the operator can remotely control the operation of the truss type suction dredge. The remote controller can be a computer, a smart phone, a tablet computer, etc., preferably a computer arranged in a central control room.

[0069] Combination Figure 3 , Figure 4 and Figure 5 As shown, the second embodiment of the utility model provides a horizontal flow sedimentation tank, including a sedimentation tank body 700 and a sludge suction machine;

[0070] The left and right outer walls of the sedimentation tank body 700 are both provided with running tracks 710, and the running tracks 710 are arranged along the front-back direction;

[0071] The sludge suction machine is arranged on the running track 710 through the walking mechanism 400;

[0072] The sludge suction machine is the above-mentioned truss-type sludge suction machine, and its cleaning unit extends into the tank chamber 720 of the sedimentation tank body 700;

[0073] The roller brush 232 is in contact with the side wall surface of the pool chamber 720 .

[0074] By installing the above-mentioned truss-type sludge suction machine, the horizontal flow sedimentation tank can not only effectively remove the sludge in the sedimentation tank, but also can flush the sludge adhered to the bottom of the sedimentation tank by connecting the flushing pipe 222 to the high-pressure water source. The side wall surface of the chamber 720 of the sedimentation tank can be brushed by the brushing device 230, which can effectively clean the sludge inside the chamber 720 of the sedimentation tank, which is beneficial to ensure the water quality of the effluent.

[0075] Combination Figure 2 and Figure 5 As shown, in some embodiments of the utility model, both front and rear ends of the running track 710 are provided with a limit device 730 and a travel switch contact rod 740; the truss 100 is provided with a travel switch 750 corresponding to the travel switch contact rod 740, and the travel switch 750 is electrically connected to the walking mechanism 400. The limit device 730 can prevent the sludge suction machine from moving over the running track 710, and the travel switch contact rod 740 and the travel switch 750 facilitate the automatic control of the reciprocating movement of the sludge suction machine, thereby reducing manual intervention.

[0076] Specifically, Figure 5 As shown, the sedimentation tank body 700 has at least two tank chambers 720 spaced apart from each other; the number of cleaning units is equal to the number of tank chambers 720, and each cleaning unit is arranged in a one-to-one correspondence with each tank chamber 720, and the cleaning units in different tank chambers 720 can be independently controlled to work, and the corresponding cleaning units can be opened according to actual needs, effectively avoiding the waste of energy caused by the integral control that some tank chambers 720 do not need to be cleaned, thereby saving cleaning costs.

[0077] For example Figure 5As shown, in some embodiments of the utility model, the horizontal flow sedimentation tank further includes a power supply device 800, which includes a busbar 810 and a power receiving element 820; the busbar 810 is arranged along the length direction of the running track 710; the power receiving element 820 is electrically connected to the sludge suction machine and can move synchronously with the truss 100, and the power receiving element 820 is in sliding contact with the busbar 810. The busbar 810 is generally fixed on the sedimentation tank body 700. The power supply device 800 cooperates with the power receiving element 820 through the busbar 810 to supply power to the sludge suction machine, and has the advantages of simple structure and easy maintenance. Among them, the power receiving element 820 can be of various types, such as: pantograph, power receiving board, etc.

[0078] The present invention is described in detail in detail and is not intended to be limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terms used herein are selected to best explain the principles, practical applications, or technological advances of the embodiments, or to enable other persons skilled in the art to understand the embodiments disclosed herein, compared to the technology found on the market.

[0079] It should be understood that, for the sake of clarity, certain features of the present invention described in the context of separate embodiments may also be provided in combination in a single embodiment. Conversely, for the sake of brevity, various features of the present invention described in the context of a single embodiment may also be provided individually or in any suitable sub-combination, or in any other described embodiment of the present invention where appropriate. Certain features described in the context of various embodiments are not considered essential features of those embodiments unless the embodiments do not work without those features.

Claims

1. A truss-type dredge suction machine, comprising a truss (100) and a cleaning unit, wherein the cleaning unit comprises a dredge suction device (210), and the dredge suction device (210) comprises a pump frame (211), a dredge suction pump (212), a dredge suction nozzle (213) and a dredge suction pipe (214); The pump frame (211) is vertically arranged downward along the truss (100), and its upper end is connected to the truss (100); The sludge suction pump (212) is arranged on a pump frame (211); The mud suction nozzle (213) is arranged at the bottom of the pump frame (211); One end of the mud suction pipe (214) is connected to the sewage suction port of the mud suction pump (212), and the other end is connected to the mud suction nozzle (213); the characteristics are: The cleaning unit further comprises a flushing device (220) and a scrubbing device (230); The flushing device (220) comprises a flushing nozzle (221) arranged at the bottom of the pump frame (211), and a flushing pipe (222) connected to the flushing nozzle (221); The scrubbing device (230) comprises a scrubbing motor (231) arranged on a truss (100), and a roller brush (232) rotatably arranged and drivingly connected to the scrubbing motor (231); the roller brush (232) corresponds to the near-wall side of the pump frame (211), and the near-wall side of the pump frame (211) is a side portion thereof that can correspond to the side wall surface of the tank chamber (720) of the sedimentation tank.

2. The truss type dredge suction machine according to claim 1, characterized in that: The cleaning unit comprises two groups of flushing devices (220) and two groups of brushing devices (230); The flushing nozzles (221) of the two flushing devices (220) are respectively located at the front and rear sides of the mud suction nozzle (213); The roller brushes (232) of the two groups of brushing devices (230) are respectively located on the left and right sides of the pump frame (211).

3. The truss type dredge suction machine according to claim 1, characterized in that: The cleaning unit further comprises a scraper (240), wherein the scraper (240) is arranged at the bottom of the pump frame (211), and the lower edge of the scraper is lower than the mud suction nozzle (213) and lower than the flushing nozzle (221).

4. The truss type dredge suction machine according to claim 1, characterized in that: Also includes a mud discharge pipe (300); The cleaning units are in at least two groups and are arranged at intervals along the length direction of the truss (100); One end of the mud discharge pipe (300) extends into the mud discharge groove (500), and the other end is connected to mud discharge branch pipes (310) equal in number to the mud suction pumps (212), and each mud discharge branch pipe (310) is connected to a sewage discharge port of each mud suction pump (212) in a one-to-one correspondence.

5. The truss type dredge suction machine according to any one of claims 1 to 4, characterized in that: A walking mechanism (400) is provided at both left and right ends of the truss (100); the walking mechanism (400) comprises a walking wheel (410) rotatably arranged at the bottom of the truss (100), and a driving device (420) arranged on the truss (100) and drivingly connected to the walking wheel (410).

6. The truss type dredge suction machine according to claim 5, characterized in that: Also included is a control system, the control system comprising an electric control box (610), a local controller and a sludge level meter; The electric control box (610) is arranged on the truss (100); The local controller is arranged in the electric control box (610), is communicatively connected with the cleaning unit, and is electrically connected with the driving device (420) via a frequency converter; The sludge level meter is arranged on the truss (100) and is communicatively connected with the local controller, and is used to detect the height of the sludge level in the sedimentation tank.

7. A horizontal flow sedimentation tank, comprising a sedimentation tank body (700) and a sludge suction machine; The left and right outer walls of the sedimentation tank body (700) are both provided with running tracks (710), and the running tracks (710) are arranged along the front-rear direction of the sedimentation tank body (700); The sludge suction machine is arranged on a running track (710) via a walking mechanism (400); Features: The sludge suction machine is a truss-type sludge suction machine as claimed in claim 5 or 6, and its cleaning unit extends into the tank chamber (720) of the sedimentation tank body (700); The roller brush (232) is in contact with the side wall surface of the pool chamber (720).

8. The horizontal flow sedimentation tank according to claim 7, characterized in that: The front and rear ends of the running track (710) are both provided with a limit device (730) and a travel switch contact rod (740); The truss (100) is provided with a travel switch (750) corresponding to the travel switch contact rod (740), and the travel switch (750) is electrically connected to the walking mechanism (400).

9. The horizontal flow sedimentation tank according to claim 7, characterized in that: The sedimentation tank body (700) has at least two tank chambers (720) spaced apart from each other. The number of the cleaning units is equal to the number of the pool chambers (720), and each cleaning unit is arranged in a one-to-one correspondence with each pool chamber (720); and the cleaning units in different pool chambers (720) can be controlled to work independently.

10. The horizontal flow sedimentation tank according to any one of claims 7 to 9, characterized in that: It also includes a power supply device (800), wherein the power supply device (800) includes a busbar (810) and a power receiving element (820); The busbar (810) is arranged along the length direction of the running track (710); The power receiving element (820) is electrically connected to the sludge suction machine and can move synchronously with the truss (100), and the power receiving element (820) is in sliding contact with the busbar (810).

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