CN109320041B - Slurry treatment system - Google Patents

Abstract

A mud treatment system comprises a liquid collecting tank, a conveying pipeline, a centrifugal machine motor, a control valve, a mixing drum, a flocculating agent pump, a mud tank, a mixing drum motor, a conveying belt, a mud inlet pipe, a discharge valve and a bracket; the centrifugal machine comprises a first arc, a second arc, a third arc, a connecting section, an outer wall, a middle wall, an inner wall, a scraper rod, a scraper, a multifunctional groove, an outer maintenance disc, an inner maintenance disc, a liquid discharge purging port, a liquid discharge pipe top wall, a liquid discharge pipe, an auxiliary purging port and a mud discharge grid; the slurry pump conveys the slurry in the slurry pool to the mixing cylinder, the flocculating agent pump conveys the flocculating agent to the mixing cylinder, the mixing cylinder motor drives the blades in the mixing cylinder to stir, a control valve is connected between the mixing cylinder and the centrifugal machine, the slurry enters the centrifugal machine through the slurry inlet pipe, the liquid discharged by the centrifugal machine enters the liquid collecting tank through the conveying pipeline, and the slurry discharged by the centrifugal machine falls on the conveying belt through the discharge valve; the mud processing system also includes a controller.

Description

A mud treatment system

technical field

The invention relates to the related field of mud treatment, in particular to a mud treatment system.

Background technique

With the development of science and technology and economic development, the amount of mud used is increasing. At present, the mud in the city mainly comes from construction engineering mud, municipal sludge and river silt. With the continuous acceleration of urbanization, high-rise, super There are more and more constructions of various projects such as high-rise buildings, subways, expressways, and large bridges, and the amount of mud produced is also increasing. At present, there are mainly the following ways to deal with mud: 1) Tanker truck (mud truck) for external transportation. This method is to directly lift the mud generated on site into the mud truck through the mud pump, and transport the mud to the outskirts of the city through the mud truck. 2) On-site sedimentation and drying, this method needs to build a sedimentation tank at the construction site, discharge the generated mud into it, and carry out natural sedimentation and drying; 3) Centrifugal dehydration, a centrifuge can be used to Construction mud is dewatered.

For the third method "centrifugal dehydration". In actual use, there are the following problems.

1. The outer cylinder of the centrifuge in the prior art needs to be larger in size, because the outer cylinder contains relatively solid mud and needs to be discharged, and there is a waste of space, but the diameter of the outer cylinder cannot be reduced because of the reduction. It is not enough to accommodate a large number of mud parts, so it causes troubles. The solution is often to directly use a large-diameter outer cylinder, but it does not meet the design trend of miniaturization and refinement.

2. The centrifuge in the prior art lacks maintenance means, and only a part can be cleaned when it is cleaned, and there is a cleaning dead angle.

3. A part of the centrifuge in the prior art is provided with a drain pipe or a liquid collecting pipe, which is often exposed in the drum and subjected to the erosion of centrifugal particles. When there are stones in the mud, it is easy to rotate and damage the drain pipe; for this reason The solution is often to increase the material hardness of the drain pipe, which however increases the cost.

4. The bottom of the centrifuge in the prior art is provided with a discharge valve, but the discharge valve is directly impacted by the centrifuged material, which is prone to loosening or even damage after a long time.

5. After the centrifuge of the prior art is used for a long time, it will accumulate materials that are difficult to remove, even if it is impacted by water, it cannot be removed.

6. In the mud processing system of the prior art, when the conveyor belt is conveying, the material is often randomly dropped onto the conveyor belt, which is uncontrollable, and it is difficult to collect the random material.

Contents of the invention

In order to overcome the above-mentioned problems, the present invention proposes a solution to simultaneously solve the above-mentioned multiple problems.

The technical solution adopted by the present invention to solve the technical problem is: a mud treatment system, including a liquid collection tank, a delivery pipeline, a centrifuge, a centrifuge motor, a control valve, a mixing cylinder, a flocculant pump, a mud pump, a mud tank, Mixing drum motor, conveyor belt, mud inlet pipe, discharge valve, bracket; the centrifuge includes the first arc, second arc, third arc, connecting section, outer wall, middle wall, inner wall, scraper rod, scraper, multi-function Groove, outer maintenance plate, inner maintenance plate, liquid discharge purge port, top wall of liquid discharge pipe, liquid discharge pipe, auxiliary purge port, mud discharge grille; the mud pump transports the mud in the mud pool to the mixing cylinder for flocculation The agent pump transports the flocculant to the mixing barrel, the mixing barrel motor drives the blades inside the mixing barrel to stir, the control valve is connected between the mixing barrel and the centrifuge, the mud enters the centrifuge through the mud inlet pipe, and the liquid discharged from the centrifuge enters through the delivery pipe The liquid collecting tank, the mud discharged from the centrifuge falls on the conveyor belt through the discharge valve; the mud processing system also includes a controller;

Both the centrifuge and the discharge valve are fixed on the bracket. The centrifuge includes an inner cylinder and an outer cylinder. The outer cylinder includes a first arc, a second arc, a third arc, and a connecting section. The two ends of the first arc pass through the connecting section respectively. Connecting the second arc and the third arc, the radius of the first arc is greater than the radius of the second arc, the radius of the first arc is greater than the radius of the third arc, the radius of the second arc is the same as that of the third arc, forming a closing point downwards, closing The diameter is equal to the diameter of the bracket opening, and the connecting section does not bend; a scraper rod and a scraper are arranged between the inner cylinder and the outer cylinder, the scraper rod is connected to the inner cylinder, and the sum of the lengths of the scraper rod and the scraper is equal to the second The distance between the arc and the third arc and the inner cylinder is less than the distance between the connecting section and the first arc and the inner cylinder; the inner cylinder includes an outer wall, a middle wall, and an inner wall, and the distance between the outer wall and the middle wall is greater than the distance between the inner wall and the middle wall. The distance between the discharge pipe is partly between the inner wall and the middle wall, and a part is between the outer wall and the middle wall; there is a gap between the discharge pipe and the outer wall, and the discharge pipe is provided with radially inwardly facing The top wall of the discharge pipe, the top wall of the discharge pipe is exposed outside the inner wall, and the top wall of the discharge pipe is made of metal material; the inner wall is a filter layer, and the filtered liquid enters through the small holes on the wall of the discharge pipe Drainage pipe; the outer wall, the middle wall, and the inner wall are provided with a mud discharge grid, and the mud discharge grid divides the space between the outer wall and the middle wall into several sub-cavities;

One end of the inner cylinder is provided with an outer maintenance plate and an inner maintenance plate, the outer maintenance plate is provided with a multifunctional groove, and the inner maintenance plate is provided with a liquid discharge purge port, and the position of the liquid discharge purge port corresponds to At one end of each sub-chamber, the number of multi-functional slots corresponds to the number of liquid discharge purge ports; the inner maintenance plate is also provided with auxiliary purge ports, and the positions of the auxiliary purge ports correspond to the inner wall and the middle wall. In between, through the rotation of the outer maintenance plate, the multi-functional tank alternately corresponds to the liquid discharge purge port and the auxiliary purge port; plate, the second cylinder, the main body wall, the mud thrown out by the centrifuge falls on the mud-bearing arc-shaped wall, the impact energy is unloaded through the arc-shaped wall and the mud slides smoothly from the mud-bearing arc-shaped wall to the main body wall, The first air cylinder drives the first ram on the upper end of the mud-bearing arc-shaped wall, and the second air cylinder drives the second ram on the upper end of the main body wall.

Preferably, the number of the liquid discharge purge ports is four.

Preferably, an opening is provided inside the inner cylinder to connect to the mud inlet pipe.

Preferably, the control valve is an electric valve.

Preferably, the driving of the first cylinder and the second cylinder is replaced by the driving of the first stepping motor and the second stepping motor.

Preferably, the filter layer is filter cloth.

Preferably, the first cylinder is fixed on the bracket.

Preferably, the second cylinder is fixed on the main body wall.

Preferably, a turbidity meter is provided next to the liquid discharge purge port.

Preferably, a collection container is provided at the end of the conveyor belt.

The beneficial effects of the present invention are:

1. Aiming at the first point of the background technology, a multi-stage centrifuge outer cylinder design is adopted, which not only retains enough size to accommodate the mud part, but also saves volume space, and at the same time, the distance between the centrifuge inner cylinder and the discharge valve is close and larger The mud in the radiation range can directly enter the discharge valve, avoiding falling into the outer cylinder first and then falling into the discharge valve, which saves steps and avoids the accumulation and solidification of mud in the outer cylinder.

2. Aiming at the second point of the background technology, a scheme in which the multi-functional tanks alternately communicate with the liquid discharge purge port and the auxiliary purge port is adopted, and the alternation is realized through the relative rotation of the outer maintenance plate and the inner maintenance plate.

3. In view of the third point raised in the background technology, a three-layer design of the inner cylinder wall is adopted, and the liquid discharge pipe is buried between the three-layer walls for liquid drainage.

4. Aiming at the fourth point of the background technology, the mud-bearing wall and the main body wall of the discharge valve are designed, and the centrifugal energy is unloaded through the mud-bearing wall, so that the discharge is more stable and the service life of the discharge valve is longer.

5. For point 5 of the background technology, a scraper and connecting rod are added, which are designed between the inner and outer cylinders to provide finer and more efficient material cleaning.

6. For the sixth point proposed in the background technology, in the working state, first open the first gate and close the second gate, so that the mud is thrown on the arc-shaped wall of the mud bearing and piled up on the second gate. The mud relieves the impact of falling material, and then opens the second gate to make the mud fall down, making the material fall more stable and weight controllable, and the service life of the discharge valve is longer. It makes the blanking relatively concentrated, which is convenient for collection at the end of the conveyor belt.

Note: the above-mentioned designs are in no particular order, and each of them makes the present invention have difference and remarkable progress compared with the prior art.

Description of drawings

Fig. 1 is an overall schematic diagram of a centrifuge and a discharge valve of the present invention.

Fig. 2 is a sectional view of the inner cylinder of the centrifuge of the present invention.

Fig. 3 is a front view of the inner cylinder of the centrifuge of the present invention.

Fig. 4 is an overall view of the mud treatment system of the present invention.

In the figure, the reference signs are as follows:

1. First arc 2, second arc 3, third arc 4, connecting section 5, outer wall 6, middle wall 7, inner wall 8, scraper rod 9, scraper 10, bracket 11, first cylinder 12, first gate 13. Mud bearing arc wall 14, second ram 15, second cylinder 16, main body wall 17, multi-function tank 18, outer maintenance plate 19, inner maintenance plate 20, drain purge port 21, drain pipe top Wall 22, liquid discharge pipe 23, auxiliary purge port 24, mud discharge grid 25, liquid collection tank 26, conveying pipe 27, centrifuge 28, centrifuge motor 29, control valve 30, mixing cylinder 31, flocculant pump 32 , mud pump 33, mud pool 34, mixing drum motor 35, conveyor belt 36, mud inlet pipe 37, discharge valve.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in the figure: a mud treatment system, including liquid collection tank, conveying pipeline, centrifuge, centrifuge motor, control valve, mixing cylinder, flocculant pump, mud pump, mud tank, mixing cylinder motor, conveyor belt, inlet Mud pipe, discharge valve, bracket; the centrifuge includes first arc, second arc, third arc, connecting section, outer wall, middle wall, inner wall, scraper rod, scraper, multi-functional tank, outer maintenance plate, inner maintenance Pan, liquid discharge purge port, top wall of liquid discharge pipe, liquid discharge pipe, auxiliary purge port, mud discharge grid; the mud pump transports the mud in the mud pool to the mixing cylinder, and the flocculant pump transports the flocculant to the mixing tank. The motor of the mixing cylinder drives the blades inside the mixing cylinder to stir. The control valve is connected between the mixing cylinder and the centrifuge. The mud enters the centrifuge through the mud inlet pipe. The mud falls on the conveyor belt through the discharge valve; the mud treatment system also includes a controller;

As shown in the figure: the centrifuge and the discharge valve are fixed on the bracket. The centrifuge includes an inner cylinder and an outer cylinder. The outer cylinder includes a first arc, a second arc, a third arc, and a connecting section. The ends are respectively connected to the second arc and the third arc through the connecting segment, the radius of the first arc is greater than the radius of the second arc, the radius of the first arc is greater than the radius of the third arc, the radius of the second arc is the same as that of the third arc, and A closing is formed at the bottom, the diameter of the closing is equal to the diameter of the bracket opening, and the connecting section does not bend; a scraper rod and a scraper are arranged between the inner cylinder and the outer cylinder, the scraper rod is connected to the inner cylinder, and the connection between the scraper rod and the scraper The sum of the lengths is equal to the distance from the second arc and the third arc to the inner cylinder, which is less than the distance from the connecting section and the first arc to the inner cylinder;

As shown in the figure: the inner cylinder includes an outer wall, a middle wall, and an inner wall. The distance between the outer wall and the middle wall is greater than the distance between the inner wall and the middle wall. A part of the drain pipe is between the inner wall and the middle wall, and a part is Between the outer wall and the middle wall; there is a gap between the drain pipe and the outer wall, the drain pipe is provided with a radially inward facing top wall of the drain pipe, the top wall of the drain pipe is exposed outside the inner wall, and the drain pipe The top wall is made of metal material; the inner wall is a filter layer, and the filtered liquid enters the drain pipe through the small holes on the wall of the drain pipe; the outer wall, middle wall, and inner wall are provided with mud discharge grilles , the mud discharge grid divides the space between the outer wall and the middle wall into several sub-cavities; one end of the inner cylinder is provided with an outer maintenance plate and an inner maintenance plate, and the outer maintenance plate is provided with a multifunctional groove. The internal maintenance plate is provided with a liquid discharge purge port, the position of the liquid discharge purge port corresponds to one end of each sub-cavity, and the number of multi-functional grooves corresponds to the number of liquid discharge purge ports; An auxiliary purge port is also provided. The position of the auxiliary purge port corresponds to the position between the inner wall and the middle wall. Through the rotation of the outer maintenance plate, the multi-functional tank alternately corresponds to the liquid discharge purge port and the auxiliary purge port;

As shown in the figure: the discharge valve includes a first cylinder, a first gate, a mud-bearing arc wall, a second gate, a second cylinder, and a main body wall. The mud thrown out by the centrifuge falls on the bearing On the mud arc-shaped wall, the impact energy is unloaded through the arc-shaped wall and the mud slides smoothly from the mud-bearing arc-shaped wall to the main body wall. The first cylinder drives the first gate on the upper end of the mud-bearing arc-shaped wall. The second air cylinder drives the second shutter on the upper end of the main body wall. The number of the liquid discharge purge ports is four. An opening is provided inside the inner cylinder to connect to the mud inlet pipe. The control valve is an electric valve. The drive of the first cylinder and the second cylinder is changed to the drive of the first stepper motor and the second stepper motor. The filter layer is filter cloth. The first air cylinder is fixed on the bracket. The second cylinder is fixed on the main body wall. A turbidity meter is arranged beside the liquid discharge purge port. A collection container is provided at the end of the conveyor belt.

The above detailed description is a specific description of the feasible embodiment of the present invention. This embodiment is not used to limit the patent scope of the present invention. Any equivalent implementation or change that does not deviate from the present invention should be included in the patent scope of this case. middle.

Claims (10)

1. A mud treatment system comprises a liquid collecting tank, a conveying pipeline, a centrifugal machine motor, a control valve, a mixing drum, a flocculating agent pump, a mud tank, a mixing drum motor, a conveying belt, a mud inlet pipe, a discharge valve and a bracket; the centrifugal machine comprises a first arc, a second arc, a third arc, a connecting section, an outer wall, a middle wall, an inner wall, a scraper rod, a scraper, a multifunctional groove, an outer maintenance disc, an inner maintenance disc, a liquid discharge purging port, a liquid discharge pipe top wall, a liquid discharge pipe, an auxiliary purging port and a mud discharge grid;

the method is characterized in that: the slurry pump conveys the slurry in the slurry pool to the mixing cylinder, the flocculating agent pump conveys the flocculating agent to the mixing cylinder, the mixing cylinder motor drives the blades in the mixing cylinder to stir, a control valve is connected between the mixing cylinder and the centrifugal machine, the slurry enters the centrifugal machine through the slurry inlet pipe, the liquid discharged by the centrifugal machine enters the liquid collecting tank through the conveying pipeline, and the slurry discharged by the centrifugal machine falls on the conveying belt through the discharge valve; the mud processing system further comprises a controller;

the centrifugal machine and the discharge valve are fixed on the support, the centrifugal machine comprises an inner barrel and an outer barrel, the outer barrel comprises a first arc, a second arc, a third arc and a connecting section, two ends of the first arc are respectively connected with the second arc and the third arc through the connecting section, the radius of the first arc is larger than that of the second arc, the radius of the first arc is larger than that of the third arc, the radii of the second arc and the third arc are the same, a closing-in is formed downwards, the diameter of the closing-in is equal to that of an opening of the support, and the connecting section is not bent; a scraper bar and a scraper are arranged between the inner cylinder and the outer cylinder, the scraper bar is connected to the inner cylinder, and the sum of the lengths of the scraper bar and the scraper is equal to the distance from the second arc and the third arc to the inner cylinder and is less than the distance from the connecting section and the first arc to the inner cylinder;

the inner cylinder comprises an outer wall, a middle wall and an inner wall, the distance between the outer wall and the middle wall is greater than the distance between the inner wall and the middle wall, one part of the liquid discharge pipe is arranged between the inner wall and the middle wall, and the other part of the liquid discharge pipe is arranged between the outer wall and the middle wall; a gap is reserved between the liquid discharge pipe and the outer wall, the liquid discharge pipe is provided with a liquid discharge pipe top wall which faces inwards in the radial direction, the liquid discharge pipe top wall is exposed outside the inner wall, and the liquid discharge pipe top wall is made of a metal material; the inner wall is a filter layer, and the filtered liquid enters the liquid discharge pipe through small holes in the pipe wall of the liquid discharge pipe; the outer wall, the middle wall and the inner wall are provided with mud discharge grids which divide the space between the outer wall and the middle wall into a plurality of sub-cavities;

one end of the inner cylinder is provided with an outer maintenance disc and an inner maintenance disc, the outer maintenance disc is provided with multifunctional grooves, the inner maintenance disc is provided with liquid drainage purging ports, the positions of the liquid drainage purging ports correspond to one end of each sub-cavity, and the number of the multifunctional grooves corresponds to the number of the liquid drainage purging ports; the inner maintenance disc is also provided with an auxiliary purging port, the auxiliary purging port is positioned between the inner wall and the middle wall, and the multifunctional groove alternately corresponds to the liquid discharge purging port and the auxiliary purging port through the rotation of the outer maintenance disc;

the discharge valve includes first cylinder, first flashboard, holds mud arc wall, second flashboard, second cylinder, main part wall, and the mud part that centrifuge thrown away falls on holding mud arc wall, through arc wall uninstallation impact energy and make mud smoothly slide to the main part wall by holding mud arc wall, first cylinder is in holding the first flashboard of the upper end drive of mud arc wall, the second cylinder is in the upper end drive second flashboard of main part wall.

2. A slurry treatment system according to claim 1, wherein: the number of the liquid discharge purging ports is four.

3. A slurry treatment system according to claim 1, wherein: an opening is arranged in the inner cylinder and connected with a mud inlet pipe.

4. A slurry treatment system according to claim 1, wherein: the control valve is an electric valve.

5. A slurry treatment system according to claim 1, wherein: and the first cylinder and the second cylinder are driven by a first stepping motor and a second stepping motor.

6. A slurry treatment system according to claim 1, wherein: the filter layer is filter cloth.

7. A slurry treatment system according to claim 1, wherein: the first cylinder is fixed on the bracket.

8. A slurry treatment system according to claim 1, wherein: the second cylinder is fixed on the main body wall.

9. A slurry treatment system according to claim 1, wherein: and a turbidity meter is arranged beside the liquid discharge purging port.

10. A slurry treatment system according to claim 1, wherein: and a collecting container is arranged at the tail end of the conveying belt.

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