A quick dehydration system and dehydration method for slurry

Abstract

The present application relates to the technical field of slurry treatment, in particular to a slurry rapid dewatering system and method, which comprises a first filter bucket and a second filter bucket for storing slurry, the first filter bucket and the second filter bucket are connected with each other through a first connecting pipe, a dewatering press roller is arranged on the upper side of the slurry dewatering assembly, and the two ends of the dewatering press roller are movably connected in the connecting plate. The slurry on the upper end of the slurry dewatering assembly is rolled and pressed by the dewatering press roller, so as to accelerate the separation of water in the slurry. The slurry is introduced into the first filter bucket through the liquid inlet pipe, the first filter plate in the first filter bucket filters the slurry for the first time, the second filter plate can filter small sand and gravel, the filtered slurry falls onto the surface of the filter cloth, and the slurry is rapidly dewatered under the extrusion of the dewatering press roller, so as to prevent the stones in the slurry from damaging the filter cloth and causing the slurry to be unable to be dewatered.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of slurry treatment, in particular to a slurry rapid dewatering system and method. BACKGROUND

[0002] For example, a slurry dewatering system is disclosed in Chinese patent CN110877955A, which comprises a support frame provided with upper, middle and lower layers, three-layer track assemblies arranged in the upper, middle and lower layers respectively, each track assembly comprising a track structure, filter cloth and two baffles, the filter cloth being covered on the track structure and running with the track structure, and the two baffles being arranged opposite to the two opposite sides of the track structure, and the part of the filter cloth located on the upper surface of the track structure and the two baffles forming a flow channel.

[0003] However, the above-mentioned scheme has the following disadvantages: in the above-mentioned patent, the first and second water permeation barrels are used to preliminarily dewater the slurry, and the extrusion dewatering machine is used to extrude the preliminarily dewatered slurry to achieve rapid dewatering of the slurry. However, since the slurry contains solid particles such as stones, and the extrusion dewatering machine is provided with filter cloth, when the slurry containing stones falls above the filter cloth and is extruded for dewatering, the stones in the slurry will damage the filter cloth, so that the extrusion dewatering machine cannot dewater the slurry any more. Therefore, we propose a slurry rapid dewatering system and method. SUMMARY

[0004] The present application aims to provide a slurry rapid dewatering system and method to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A slurry rapid dewatering system comprises a first filter barrel and a second filter barrel for storing slurry, the first filter barrel and the second filter barrel are connected to each other through a first connecting pipe, the first filter barrel and the second filter barrel are each provided with a first filter plate for preliminarily separating sand and water in the slurry, the first filter barrel is provided with a sandstone separation assembly, the first filter barrel is provided with a connecting cover on the upper side, the connecting cover is fixedly connected to the first filter barrel, the sandstone separation assembly is fixedly connected to the output end of an extension cylinder, and the extension cylinder is fixedly installed on the upper end of the connecting cover, so as to separate large sandstones from the slurry through the sandstone separation assembly.

[0007] The first filter plate upper end is movably connected with a feeding screw rod, the first filter barrel and the second filter barrel are fixedly connected with a material guiding pipe outside, the material guiding pipe extends to the second filter plate upper side, the second filter plate lower end is fixedly connected with two groups of supports, the mud in the first filter barrel and the second filter barrel is fed to the material guiding pipe through the feeding screw rod, the mud in the material guiding pipe falls on the first filter plate upper end to filter small sand and stones, a mud dewatering assembly is arranged between the two groups of supports, the mud after primary filtration is further dewatered through the mud dewatering assembly, a dewatering press roller is arranged on the mud dewatering assembly upper side, the dewatering press roller two ends are movably connected in the connecting plate, the connecting plate lower end is fixedly connected with the support, the mud on the mud dewatering assembly upper side is rolled through the dewatering press roller to accelerate the separation of water in the mud.

[0008] Preferably, the sand and stone separating assembly comprises a connecting rod, a motor is fixedly installed in the connecting rod lower end, the motor output end is fixedly connected with the filter plate, and the connecting rod upper end is fixedly connected with the telescopic cylinder output end.

[0009] Preferably, the mud dewatering assembly comprises a filter cloth, two groups of transmission rollers are sleeved on the filter cloth inner side, the two groups of transmission rollers are movably connected between the two groups of supports, a transmission motor is fixedly connected with the support outer side, the transmission motor output end is fixedly connected with one group of transmission rollers, and two groups of rubber stoppers are fixedly connected with the filter cloth outer side.

[0010] Preferably, a first connecting pipe is fixedly connected with the first filter barrel one end, the first connecting pipe far away from the first filter barrel one end is fixedly connected with the second filter barrel, and a first electromagnetic valve is fixedly sleeved on the first connecting pipe outer side.

[0011] Preferably, a water drainage pipe is fixedly connected with the second filter barrel outer side, a second electromagnetic valve is fixedly sleeved on the water drainage pipe outer side, and a liquid inlet pipe is fixedly connected with the first filter barrel outer side.

[0012] In addition, in order to achieve the above object, the application also provides a dewatering method for the mud rapid dewatering system, which comprises the following steps:

[0013] S1, the mud is guided into the first filter barrel through the liquid inlet pipe, the mud in the first filter barrel is filtered under the first filter plate to be initially filtered, the filtered mud water is stored in the first filter barrel lower side, the sand and stone separating assembly is driven to move upward by opening the telescopic cylinder, the sand and stone separating assembly moves upward to bring large sand and stones from the mud, when the sand and stone separating assembly reaches the uppermost side, the sand and stone separating assembly rotates to throw out the large sand and stones from the first filter barrel;

[0014] S2, the first filter barrel mud is transported to the material guide pipe by the micro motor driven feed screw, the mud entering into the material guide pipe falls into the upper end of the second filter plate, the second filter plate filters the small sand, the filtered mud falls into the upper end of the mud dewatering assembly, the mud dewatering assembly makes the water in the mud be filtered and discharged, and the separation of the mud and the water is accelerated under the extrusion of the dewatering roller;

[0015] S3, the mud water stored in the lower side of the first filter barrel is sucked into the first connecting pipe by opening the first electromagnetic valve, the mud water in the first connecting pipe enters into the second filter barrel, the first filter plate in the second filter barrel further filters the mud water, the filtered mud is transported to the material guide pipe by the feed screw in the second filter barrel, the mud entering into the material guide pipe falls into the upper end of the second filter plate for filtering, and the water filtered for many times is discharged from the drain pipe by opening the second electromagnetic valve.

[0016] Compared with the prior art, the beneficial effects of the present application are that the mud is introduced into the first filter barrel through the liquid inlet pipe, the first filter plate in the first filter barrel filters the mud for the first time, the sandstone separation assembly is driven to move upward by opening the telescopic cylinder, so that large sandstone is brought out of the mud, when the sandstone separation assembly reaches the uppermost side, the sandstone separation assembly rotates to throw the large sandstone out of the first filter barrel, completing the filtration of the large sandstone, the filtered mud is input into the material guide pipe through the feed screw, and finally falls into the upper end of the second filter plate, the second filter plate can filter small sandstone, the filtered mud falls onto the surface of the filter cloth, and the mud is rapidly dewatered under the extrusion of the dewatering roller, preventing the stones in the mud from damaging the filter cloth and causing the mud to be unable to be dewatered. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional cross-sectional structure of the present application;

[0018] Figure 2 It is a schematic diagram of the first filter barrel cross-sectional structure of the present application;

[0019] Figure 3 It is a schematic diagram of the first filter barrel and filter plate exploded state three-dimensional cross-sectional structure of the present application;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the present application.

[0021] In the figure: 1, support; 2, filter cloth; 3, second filter plate; 4, material guide pipe; 5, first electromagnetic valve; 6, motor; 7, connecting rod; 8, connecting cover; 9, telescopic cylinder; 10, second electromagnetic valve; 11, drain pipe; 12, first connecting pipe; 13, second filter bucket; 14, connecting plate; 15, rubber stop; 16, dehydration press roller; 17, transmission roller; 18, transmission motor; 19, filter plate; 20, liquid inlet pipe; 21, first filter plate; 22, material conveying screw; 23, first filter bucket. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0023] Please refer to Figure 1 -4, the present application provides a technical solution:

[0024] Embodiment 1

[0025] A mud rapid dewatering system, comprising a first filter bucket 23 and a second filter bucket 13 for storing mud, the first filter bucket 23 and the second filter bucket 13 are connected to each other through a first connecting pipe 12, the first filter bucket 23 and the second filter bucket 13 are both provided with a first filter plate 21, the first filter plate 21 located in the second filter bucket 13 is more meticulous in filtering mud than the first filter plate 21 located in the first filter bucket 23, the mud and water in the mud are preliminarily separated through the first filter plate 21, the first filter bucket 23 is provided with a sandstone separation assembly, the first filter bucket 23 is provided with a connecting cover 8 on the upper side, the connecting cover 8 is fixedly connected with the first filter bucket 23, the upper end of the sandstone separation assembly is fixedly connected with the output end of a telescopic cylinder 9, the telescopic cylinder 9 is fixedly installed on the upper end of the connecting cover 8, and large sandstones in the mud are separated from the mud through the sandstone separation assembly;

[0026] The first filter plate 21 is movably connected with a feeding screw 22 at the upper end, and the first filter barrel 23 and the second filter barrel 13 are fixedly connected with a guide pipe 4 at the outer side, the other end of the guide pipe 4 extends to the upper side of the second filter plate 3, and the lower end of the second filter plate 3 is fixedly connected with the two groups of supports 1. The mud in the first filter barrel 23 and the second filter barrel 13 is conveyed to the guide pipe 4 through the feeding screw 22, and the mud in the guide pipe 4 falls on the upper end of the second filter plate 3 for filtering small stones. The two groups of supports 1 are provided with a mud dewatering assembly, the mud after preliminary filtering is further dewatered through the mud dewatering assembly, the upper side of the mud dewatering assembly is provided with a dewatering press roller 16 movably connected with the connecting plate 14 at both ends, the lower end of the connecting plate 14 is fixedly connected with the support 1, and the mud on the upper end of the mud dewatering assembly is rolled through the dewatering press roller 16 to accelerate the separation of water in the mud.

[0027] Embodiment 2:

[0028] In order to prevent large stones from being blocked in the feeding screw 22 and causing the mud to be unable to be continuously conveyed, the sandstone separation assembly includes a connecting rod 7, a motor 6 fixedly installed in the lower end of the connecting rod 7, and a filter plate 19 fixedly connected with the output end of the motor 6. The filter plate 19 has a large filter hole diameter to prevent the mud from lifting the synchronous belt. The connecting rod 7 is fixedly connected with the output end of the telescopic cylinder 9 at the upper end. The connecting rod 7 is moved upward by opening the telescopic cylinder 9, and the filter plate 19 is moved upward by the connecting rod 7. The large stones are separated from the mud during the upward movement of the filter plate 19. When the upper end of the connecting rod 7 contacts the connecting cover 8, the telescopic cylinder 9 stops, and the motor 6 in the connecting rod 7 starts to rotate. The large stones on the upper end of the filter plate 19 are thrown out under the driving of the motor 6. The large stones are located outside the first filter barrel 23 under the limiting action of the connecting cover 8. After the operation is completed, the motor 6 is turned off, and the filter plate 19 is re-entered into the first filter barrel 23 through the telescopic cylinder 9.

[0029] The mud dewatering assembly comprises a filter cloth 2, two sets of transmission roller cylinders 17 sleeved on the inner side of the filter cloth 2, the two sets of transmission roller cylinders 17 movably connected between two sets of supports 1, a transmission motor 18 fixedly connected to the outer side of the support 1, the output end of the transmission motor 18 fixedly connected with one set of transmission roller cylinders 17, and two sets of rubber stop strips 15 fixedly connected to the outer side of the filter cloth 2.

[0030] The first filter barrel 23 is fixedly connected with a first connecting pipe 12 at one end, the first connecting pipe 12 is fixedly connected with a second filter barrel 13 away from one end of the first filter barrel 23, a first electromagnetic valve 5 is fixedly sleeved on the outer side of the first connecting pipe 12, a drain pipe 11 is fixedly connected to the outer side of the second filter barrel 13, a second electromagnetic valve 10 is fixedly sleeved on the outer side of the drain pipe 11, and a liquid inlet pipe 20 is fixedly connected to the outer side of the first filter barrel 23.

[0031] In addition, in order to achieve the above-mentioned purpose, the application also provides a dewatering method for the above-mentioned mud rapid dewatering system, comprising the following steps:

[0032] S1, the mud is introduced into the first filter barrel 23 through the liquid inlet pipe 20, and the mud entering the first filter barrel 23 is initially filtered under the first filter plate 21, and the filtered mud water is stored on the lower side of the first filter barrel 23; the sandstone separation assembly is moved upward by opening the telescopic cylinder 9, and the sandstone separation assembly brings up large sandstones from the mud; when the sandstone separation assembly reaches the uppermost side, the sandstone separation assembly rotates to throw out the large sandstones from the first filter barrel 23;

[0033] S2, the mud in the first filter barrel 23 is conveyed into the material guide pipe 4 by the micro motor driving the material conveying screw 22, the mud entering the material guide pipe 4 falls into the upper end of the second filter plate 3, the second filter plate 3 filters small sandstones, and the filtered mud falls into the upper end of the mud dewatering assembly, so that the water in the mud is filtered and discharged, and the separation of the mud and the water is accelerated under the extrusion of the dewatering pressure roller 16.

[0034] S3, by opening the first electromagnetic valve 5 so that the sludge stored in the lower side of the first filter barrel 23 is sucked into the first connecting pipe 12, the sludge in the first connecting pipe 12 enters into the second filter barrel 13, the first filter plate 21 in the second filter barrel 13 further filters the sludge, the filtered slurry is transported into the guide pipe 4 by the feed screw 22 in the second filter barrel 13, the slurry entering into the guide pipe 4 falls into the upper end of the second filter plate 3 for filtering, and the water filtered for many times is discharged from the drain pipe 11 by opening the second electromagnetic valve 10.

[0035] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A mud rapid dewatering system comprising a first filter bucket for storing mud and a second filter bucket, the first filter bucket and the second filter bucket being connected to each other by a first connecting pipe, characterized in that: The first filter tank and the second filter tank are provided with a first filter plate, which preliminarily separates the sand and water in the slurry, the first filter tank is provided with a sandstone separation assembly, the upper side of the first filter tank is provided with a connecting cover, the connecting cover is fixedly connected with the first filter tank, the upper end of the sandstone separation assembly is fixedly connected with the output end of the telescopic cylinder, and the telescopic cylinder is fixedly installed on the upper end of the connecting cover. The upper end of the first filter plate is movably connected with a feeding screw rod, the outer sides of the first filter tank and the second filter tank are fixedly connected with guide pipes, the other ends of the guide pipes extend to the upper side of the second filter plate, the lower end of the second filter plate is fixedly connected with two groups of supports, the slurry in the first filter tank and the second filter tank is conveyed to the guide pipes through the feeding screw rod, the slurry in the guide pipes falls onto the upper end of the second filter plate to filter small sandstone, a slurry dewatering assembly is arranged between the two groups of supports, the preliminarily filtered slurry is further dewatered through the slurry dewatering assembly, a dewatering press roller is arranged on the upper side of the slurry dewatering assembly, the two ends of the dewatering press roller are movably connected in connecting plates, and the lower end of the connecting plate is fixedly connected with the support. The sandstone separation assembly comprises a connecting rod, the lower end of the connecting rod is fixedly installed with an electric motor, and the output end of the electric motor is fixedly connected with the filter plate. The slurry dewatering assembly comprises a filter cloth, the inner side of the filter cloth is sleeved with two groups of transmission roller cylinders, the two groups of transmission roller cylinders are movably connected between the two groups of supports, the outer side of the support is fixedly connected with a transmission motor, the output end of the transmission motor is fixedly connected with one group of transmission roller cylinders, and the outer side of the filter cloth is fixedly connected with two groups of rubber stoppers.

2. A rapid dewatering system for drilling mud according to claim 1, wherein: One end of the first filter tank is fixedly connected with a first connecting pipe, the other end of the first connecting pipe away from the first filter tank is fixedly connected with the second filter tank, and the outer side of the first connecting pipe is fixedly sleeved with a first electromagnetic valve.

3. A rapid dewatering system for drilling mud according to claim 1, wherein: The outer side of the second filter tank is fixedly connected with a drain pipe, the outer side of the drain pipe is fixedly sleeved with a second electromagnetic valve, and the outer side of the first filter tank is fixedly connected with a liquid inlet pipe.

4. A method for dewatering, for use in the mud rapid dewatering system according to any one of claims 1 to 3, characterized in that, The method comprises the following steps: S1, the slurry is introduced into the first filter tank through the liquid inlet pipe, the slurry in the first filter tank is preliminarily filtered under the filtering of the first filter plate, the filtered slurry is stored on the lower side of the first filter tank, the sandstone separation assembly is driven to move upward by opening the telescopic cylinder, the sandstone separation assembly moves upward to lift the large sandstone from the slurry, when the sandstone separation assembly reaches the uppermost side, the sandstone separation assembly rotates to throw the large sandstone out of the first filter tank; S2, the micro motor drives the feed screw to transport the mud in the first filter barrel to the guide pipe, the mud entering the guide pipe falls on the upper end of the second filter plate, the second filter plate filters the small sand and gravel, the filtered mud falls on the upper end of the mud dewatering assembly, the mud dewatering assembly filters and discharges the water in the mud, and the dehydration pressure roller extrudes to accelerate the separation of the mud and the water; S3, by opening the first electromagnetic valve, the mud water stored in the lower side of the first filter barrel is sucked into the first connecting pipe, the mud water in the first connecting pipe enters the second filter barrel, the first filter plate in the second filter barrel further filters the mud water, the filtered mud is transported to the guide pipe by the feed screw in the second filter barrel, the mud entering the guide pipe falls on the upper end of the second filter plate for filtering, and the water filtered for many times is discharged from the drain pipe by opening the second electromagnetic valve.

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