CN220867255U

CN220867255U - Mud treatment device

Info

Publication number: CN220867255U
Application number: CN202322244022.XU
Authority: CN
Inventors: 李云川; 张铎; 周莲霞; 刘思静; 丁品良; 任勇
Original assignee: Sinohydro Bureau 7 Co Ltd
Current assignee: Sinohydro Bureau 7 Co Ltd
Priority date: 2023-08-20
Filing date: 2023-08-20
Publication date: 2024-04-30
Anticipated expiration: 2033-08-20

Abstract

The utility model discloses a mud treatment device. The device is integrated in a prying box body, a water inlet, a baffling sedimentation tank, a dosing tank, a advection sedimentation tank and a water outlet which are sequentially communicated with each other in water flow are arranged in the box body, and a matched mechanical dehydration mechanism and a control cabinet are arranged. The slurry treatment system is arranged as an integrated skid-mounted device, so that the slurry treatment system is convenient to transport, mount and dismount, the baffle sedimentation tank is provided with the folded plates with the 45-degree folded surfaces, the folded plates are mounted by bottom support and top hoisting, slurry firstly flows in from the upper part and is baffled for a plurality of times through the bottom and the top, and larger particles in the sedimented slurry can be rapidly and effectively intercepted; the bottom of the advection sedimentation tank is provided with a 55-degree mud accumulation bucket, and the mud collection area is provided with a mud discharge pipe with a slope of 10% so as to facilitate the collection and the discharge of mud. The device further centrifugally dewaters the mud and water separated mud and water, realizes the discharge of dry mud, reduces the treatment cost of the mud and water, and avoids environmental pollution; the device is started and stopped through PLC switch board control equipment, and the operation is convenient.

Description

Mud treatment device

Technical Field

The utility model belongs to the technical field of sewage treatment, and particularly relates to a mud-water balance jacking pipe waste mud treatment device.

Background

In the mud-water balance pipe jacking construction process, the soil body cut by the machine head is outwards conveyed to the ground in a mud-water mode, after sedimentation in a sedimentation tank or treatment by a mud-water separation device, mud residue is conveyed outwards, and clarified mud water is conveyed into a mud water bin again, so that a mud water circulation system is formed. The following problems exist in the existing slurry treatment process: the physical sedimentation process of the conventional mud pit is adopted, the sedimentation efficiency is low, the occupied area of the mud pit is large, the environment pollution is easy to cause, a mud transport vehicle is required to be adopted for outward transportation of mud slag, and the transportation cost is high. When the mud-water separation device is directly adopted to treat mud with large mud content (clay), the mud-water separation effect is poor, the efficiency is low, and high-power equipment or a plurality of equipment is required to be configured for treatment.

Disclosure of Invention

The utility model discloses a mud treatment device. The device can quickly separate mud and water in the pipe-jacking mud, realize the recycling of water, solve the problems of large occupied area and serious pollution of the conventional physical precipitation, and simultaneously solve the problem that the common mud-water separation device cannot quickly separate clay mud.

The utility model is realized by the following technical scheme:

A slurry treatment device, characterized in that: the device is integrated in a prying box body, a water inlet, a baffling sedimentation tank, a dosing tank, a advection sedimentation tank and a water outlet which are sequentially communicated with each other in water flow are arranged in the box body, and a matched mechanical dehydration mechanism and a control cabinet are arranged;

The water inlet is arranged at the top of the side wall at the front end of the baffling sedimentation tank; the baffle sedimentation tank is provided with folded plates for forming multiple upper and lower baffle sedimentation, the bottom of the baffle sedimentation tank is provided with a mud accumulation bucket and a mud discharge steel pipe, and a rear end baffle plate is provided with a water passing hole which is in self-flow communication with the dosing tank; the two dosing tanks are connected in series, each tank is provided with a dosing pipe and a stirrer, and a baffle plate at the rear end is provided with a diversion hole which is in self-flow communication with the advection sedimentation tank; advection sedimentation tank includes: the water distribution channel is communicated with the sedimentation area through a water distribution wall uniformly provided with a plurality of through holes, the bottom of the sedimentation area is provided with a mud accumulation bucket and a mud discharge steel pipe, and the rear side of the sedimentation area is provided with an overflow groove and is communicated with the water outlet through a water outlet steel pipe;

The mechanical dehydration mechanism comprises a sludge pumping mechanism and a dehydration mechanism; the sludge pumping mechanism comprises a rotor sludge pump, an inlet of the rotor sludge pump is communicated with a sludge discharge steel pipe of the baffling sedimentation tank and the parallel flow sedimentation tank, an outlet of the rotor sludge pump is communicated with a feed inlet of a horizontal centrifugal dehydrator of the dehydration mechanism, a sludge discharge steel pipe of the horizontal centrifugal dehydrator is connected with a sludge outlet, and a water outlet pipe of the horizontal centrifugal dehydrator is communicated with a water outlet.

The skid-mounted box body is further provided with an equipment operation area; the box adopts quarter pipe, I-steel welding to form sled dress skeleton, and the operation district sets up floor and railing.

Further, the water inlet and the water outlet are connected with an external water pipe through end butt flanges.

The baffle sedimentation tank folded plates are further provided with three groups of upper folded plates, the upper ends of which are connected and sealed with the top wall of the tank, and lower folded plates, which are arranged between the three groups of upper folded plates and connected and sealed with the bottom of the tank; the upper folded plates and the lower folded plates which are alternately arranged form water flow which is deflected up and down for a plurality of times; the folded plate surfaces are a plurality of identical folded plate surfaces which are mutually intersected at 90 degrees along the vertical direction.

Further, the mud accumulation hoppers at the bottoms of the baffling sedimentation tank and the convection sedimentation tank are respectively provided with a forward water flow inclined plate, the inclined plate and the horizontal plane form an included angle of 55 degrees, and each mud discharge steel pipe is provided with an electric valve.

And the mud outlet connected with the mud outlet steel pipe of the horizontal centrifugal dehydrator is rectangular horn mouth.

The dosing pipe is further connected with a dosing system, the dosing system comprises three dosing tanks, coagulant, flocculant and sodium hydroxide are respectively added in each dosing tank, and the coagulant, flocculant and sodium hydroxide are respectively added into the dosing tanks through dosing pipelines.

The control cabinet adopts a PLC control mechanism which is in control connection with each system to control the sludge pumping and discharging, the medicament adding and the centrifuge dewatering.

The utility model has the beneficial effects that: the slurry treatment system is arranged into the integrated skid-mounted device, is convenient to transport, mount and dismount, and is particularly suitable for mobile use in construction sites in cities. The utility model sets up baffling and advection two-stage treatment, realize the mud-water effective precipitation separation. The baffle sedimentation tank is provided with folded plates with the plate surfaces being 45-degree folded, the baffle sedimentation tank is divided into a bottom support and a top lifting installation, slurry firstly flows in from the upper part, and is deflected for a plurality of times through the bottom and the top, so that larger particles in the precipitated slurry can be rapidly and effectively intercepted. The bottom of the advection sedimentation tank is provided with a 55-degree mud accumulation bucket, and the mud collection area is provided with a mud discharge pipe with a slope of 10% so as to facilitate the collection and the discharge of mud. The utility model further centrifugally dewaters the mud and water separated mud and water, realizes the discharge of dry mud, reduces the treatment cost of the mud and water and avoids environmental pollution. The slurry treatment device is started and stopped by a PLC control cabinet control device, and is convenient to operate.

Drawings

FIG. 1 is a three-dimensional schematic view of an embodiment of a slurry treatment device according to the present utility model.

FIG. 2 is a schematic top plan view of an embodiment of the slurry treatment device of the present utility model.

FIG. 3 is a schematic plan view of the lower layer of an embodiment of the slurry treatment device of the present utility model.

FIG. 4 is a schematic cross-sectional view of 1-1 in FIGS. 2 and 3.

Fig. 5 is a schematic cross-sectional view of fig. 2-2 in fig. 2 and 3.

Fig. 6 is a schematic cross-sectional view of fig. 2 and 3-3.

In the figure, 1 is a skid-mounted box body, 2 is a water inlet, 2a is a water inlet steel pipe, 2b is a butt flange I, 3 is a baffling sedimentation tank, 3a is an upper folded plate, 3b is a lower folded plate, 3c is a mud accumulation bucket I, 3d is a mud discharge steel pipe I, 3e is an electric valve I, 3f is a water passing hole, 4 is a dosing tank, 4a is a stirrer, 4b is a guide hole, 5 is a horizontal sedimentation tank, 5a is a water distribution channel, 5b is a sedimentation area, 5c is a water distribution wall, 5d is a mud accumulation bucket II, 5e is a mud discharge steel pipe II, 5f is an electric valve II, 6 is a water outlet, 6a is an overflow tank, 6b is a water outlet steel pipe II, 6c is a butt flange II, 7 is a mud outlet, 8 is a stair, 9 is a railing, 10 is a dewatering mechanism, 10a horizontal centrifugal dewatering machine, 10b is a feed inlet, 10c is a mud outlet steel pipe III, 11 is a mud pumping mechanism, 11a rotor sludge pump, 11b is a sludge pump, 11c is a water outlet pump, 11c is a sludge pump 13, and 13 is a water inlet system is a sludge pump.

Detailed Description

The present utility model will be further described with reference to the following specific embodiments, which are intended to be illustrative of the principles of the present utility model and not in any way limiting, nor will the same or similar techniques be used in connection with the present utility model beyond the scope of the present utility model.

In combination with the accompanying drawings.

As shown in fig. 1 to 6, the slurry treatment apparatus of the present embodiment includes: skid-mounted box 1, water inlet 2, baffling sedimentation tank 3, dosing tank 4, advection sedimentation tank 5, delivery port 6, mud outlet 7, stair 8, railing 9, hydroextractor 10, sludge pump 11, dosing system 12, switch board 13.

The skid-mounted box body 1 is welded by adopting a rectangular pipe, I-steel and the like to form a skid-mounted framework, and the box body is divided into a pool area and an equipment operation area. The pool area comprises a baffling sedimentation tank 3, a dosing tank 4 and a advection sedimentation tank 5, the tank body is welded by adopting steel plates, and column keels and steel plate stiffening ribs are arranged on the tank wall to increase rigidity. The device operation area is divided into two layers, a sludge pump 11, a dosing system 11, a control cabinet 13, a sludge outlet 7 and auxiliary pipelines are arranged at the bottom layer, a dehydrator 10 is arranged at the top layer, and a patterned steel plate is adopted as a bottom plate and a floor plate of the operation area.

The water inlet 2 is arranged at the top of the front end of the baffling sedimentation tank 3, the water inlet steel pipe 2a is welded with the tank wall, the end head of the water inlet steel pipe 2a is provided with the butt flange 2b, and the water inlet 2 is connected with the pipe-jacking mud outlet pipeline through the butt flange 2 b.

The baffling sedimentation tank 3 is provided with three upper folded plates 3a and two lower folded plates 3b in the direction perpendicular to the water flow, as shown in fig. 6, the folded plate surfaces are multi-folded structures which are mutually 90 degrees and are transversely arranged, and each folded plate surface forms 45 degrees with the water flow direction of repeatedly baffling up and down for a plurality of times, so that muddy water is baffled up and down for a plurality of times for sedimentation; a first mud accumulation bucket 3c is arranged at the bottom of the pool below the upper folded plate 3a, the included angle between the first mud accumulation bucket 3c and the horizontal plane is 55 degrees along the water flow inclined plate, and the gradient of the first mud accumulation bucket 3c is 20 percent perpendicular to the water flow inclined plate; a sludge discharge steel pipe I3 d is arranged at the tail end of the sludge accumulation bucket I3 c, the steel pipe is welded with the sedimentation tank wall, and an electric valve I3 e is arranged on the sludge discharge steel pipe I3 d; the end wall of the baffling sedimentation tank 3 is provided with a water hole 3f for guiding the muddy water to the dosing tank 4.

The dosing tank 4 comprises two stirring tanks, each stirring tank is internally provided with a stirrer 4a, the front end stirring tank is provided with a sodium hydroxide and coagulant dosing pipe close to the water passing hole 3f, the rear end stirring tank is provided with a flocculant dosing pipe close to the water guiding hole 4b, and the pH value of the muddy water is kept at about 8 by adding sodium hydroxide.

The advection sedimentation tank 5 comprises a distribution canal 5a and a sedimentation zone 5b. The gradient of the bottom of the water distribution channel 5a along the water flow direction is 20%, and the tail end is provided with a water distribution wall 5c. The bottom of the sedimentation zone 5b is provided with two second mud accumulation hoppers 5d, the included angle between the second mud accumulation hoppers 5d and the horizontal plane is 55 degrees along the water flow inclined plate, and the gradient of the second mud accumulation hoppers 5d vertical to the water flow inclined plate is 20 percent. The tail end of the second mud accumulation bucket 5d is provided with a second mud discharge steel pipe 5e, the steel pipe is welded with the sedimentation tank wall, and an electric valve 5f is arranged on the second mud discharge steel pipe 5 e.

The water outlet 6 comprises a rectangular overflow groove 6a and a second water outlet steel pipe 6b, the overflow groove 6a is welded on the upper part of the tail end pool wall of the advection sedimentation tank 5, the end of the second water outlet steel pipe 6b is provided with a second butt flange 6c, and the water outlet 6 is connected with a pipe of the pipe jacking water inlet pipe or the water storage tank through the second butt flange 6 c.

The mud outlet 7 is rectangular horn mouth and is connected with a mud outlet steel pipe 10c of the centrifugal dehydrator.

The stairs 8 are arranged outside the tank body at the tail end of the advection sedimentation tank 5 and are connected with floor slabs of the bottom layer and the top layer equipment operation area, the stairs are made of steel stairs, and the steps are made of patterned steel plates.

The railing 9 is arranged on the free surface of the stair 8 and the centrifugal dehydrator operation layer, the height of the upright posts of the railing 9 is 1.2m, two rows of transverse rods are arranged, and the upright posts and the transverse rods are welded by square tubes.

A dehydrator 10, which adopts a horizontal centrifugal dehydrator 10a; the feed inlet 10b adopts a plastic hose and is connected with a flange of a sludge pump water outlet steel pipe 11 c; the solid phase outlet is connected with the mud outlet 7 through a mud outlet steel pipe 10c, the liquid phase outlet is connected with a water outlet steel pipe III 10d, and the tail end of the water outlet steel pipe III 10d is connected into the overflow groove 6a.

The sludge pump 11 adopts a rotor sludge pump 11a, a sludge pump water inlet steel pipe 11c is connected with a first sludge discharge steel pipe 3d and a second sludge discharge steel pipe 5e of each sedimentation tank, and a sludge pump water outlet steel pipe 11c is connected with a centrifugal dehydrator feed inlet 10 b.

The dosing system 12 comprises three dosing tanks, three dosing pipes are respectively connected with the dosing pipelines of the dosing tank 4, coagulant, flocculant and sodium hydroxide are respectively added in the dosing tanks, and the coagulant, flocculant and sodium hydroxide are added into the dosing tank through the dosing pipelines.

The control cabinet 13 adopts a PLC control cabinet, realizes the partition discharge of sludge by controlling the opening and closing of the electric valves 3e and 5f, conveys the sludge to the horizontal centrifugal dehydrator 10a by controlling the start and stop of the rotor sludge pump 11a, realizes the dehydration of the sludge by controlling the start and stop of the horizontal centrifugal dehydrator 10a, and realizes the addition and stirring of chemical agents by controlling the start and stop of the flow valve of the chemical adding tank and the flow pusher.

When the slurry treatment device is used for slurry treatment, the method comprises the following steps:

Mud enters the skid-mounted box body 1 through the water inlet 2, is subjected to up-and-down baffling and precipitation through the baffling sedimentation tank 3, large-particle sediment is precipitated to a first mud accumulation bucket 3c, upper-layer mud water enters the dosing tank 4 from the water passing hole 3f, the dosing system 12 is dosed to the dosing system through the stirrer 4a, the chemical agent and the mud water are uniformly mixed, water flows through the water distribution wall 5c and are uniformly distributed to a advection sedimentation area 5b, further mud-water separation is performed, supernatant fluid is discharged through the water outlet overflow tank 6a, and sediment is precipitated to a second mud accumulation bucket 5d.

The rotor sludge pump 11a conveys the sediment in the first sediment accumulation bucket 3c and the second sediment accumulation bucket 5d to the horizontal centrifugal dehydrator 10a through a steel pipe for mud-water separation, the dehydrated dry mud is discharged through the mud outlet 6, and the filtrate automatically flows to the overflow groove 6a of the water outlet of the tank body.

Claims

1. A slurry treatment device, characterized in that: the device is integrated in a prying box body, a water inlet, a baffling sedimentation tank, a dosing tank, a advection sedimentation tank and a water outlet which are sequentially communicated with each other in water flow are arranged in the box body, and a matched mechanical dehydration mechanism and a control cabinet are arranged;

2. The slurry treatment device according to claim 1, wherein: the skid-mounted box body is also provided with an equipment operation area; the box adopts quarter pipe, I-steel welding to form sled dress skeleton, and the operation district sets up floor and railing.

3. The slurry treatment device according to claim 1, wherein: the water inlet and the water outlet are connected with an external water pipe through end butt flanges.

4. The slurry treatment device according to claim 1, wherein: the baffle sedimentation tank folded plates are provided with three groups of upper folded plates, the upper ends of which are connected and sealed with the tank top wall, and lower folded plates, which are arranged between the three groups of upper folded plates and connected and sealed with the tank bottom; the upper folded plates and the lower folded plates which are alternately arranged form water flow which is deflected up and down for a plurality of times; the folded plate surfaces are a plurality of identical folded plate surfaces which are mutually intersected at 90 degrees along the vertical direction.

5. The slurry treatment device according to claim 1, wherein: the mud accumulation hoppers at the bottoms of the baffling sedimentation tank and the convection sedimentation tank are respectively provided with a forward water flow sloping plate, the included angle between the sloping plates and the horizontal plane is 55 degrees, and each mud discharge steel pipe is provided with an electric valve.

6. The slurry treatment device according to claim 1, wherein: the mud outlet connected with the mud outlet steel pipe of the horizontal centrifugal dehydrator is rectangular horn mouth.

7. The slurry treatment device according to claim 1, wherein: the dosing pipe is connected with a dosing system, the dosing system comprises three dosing tanks, coagulant, flocculant and sodium hydroxide are respectively added in each dosing tank, and the coagulant, flocculant and sodium hydroxide are respectively added into the dosing tanks through dosing pipelines.

8. The slurry treatment device according to claim 1, wherein: the control cabinet is a PLC control mechanism and is connected with each system in a control way.