Slurry desanding device for bentonite production

Abstract

The utility model discloses a mud desanding device for bentonite production, which relates to the technical field of bentonite and comprises a barrel, a feeding pipe is fixedly mounted on the outer side of the barrel, a sand setting pipe is fixedly mounted at the lower end of the barrel, a cover plate is arranged at the upper end of the barrel, a discharging pipe is fixedly mounted at the upper end of the cover plate, and a sand discharging pipe is fixedly mounted at the lower end of the barrel. A clamping groove is formed in the inner side of the barrel, and a first protective sleeve is installed on the inner side of the clamping groove in a sleeving mode. The clamping groove is formed in the barrel body, the first protective sleeve is installed in the clamping groove and plays a role in protecting the inner wall of the barrel body, when the first protective sleeve is abraded, the cover plate is taken down, the first protective sleeve can be taken out and replaced, the inner sleeve is arranged on the inner side of the discharging pipe and fixed through the positioning screw, the second protective sleeve is connected to the outer side of the inner sleeve in a sleeved mode, and therefore the protective sleeve can be replaced conveniently. And when the second sheath is abraded, the inner sleeve is taken down, the second sheath can be taken out and replaced, the whole body does not need to be replaced, and the service life of the device is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bentonite, in particular to a mud sand removing device for bentonite production. Background Art

[0002] The soil in coastal and riverside areas is silty soft soil, which belongs to the soft soil layer with "three highs and three lows" characteristics, high water content, high compressibility, high sensitivity, low strength, low density, low permeability, low bearing capacity, poor engineering performance, and easy deformation under pressure. Under vibration or loading conditions, rheology, thixotropy or consolidation of the soft soil itself may occur, causing settlement and deformation of the site ground. In addition, the soft soil layer has a certain influence on the foundation stability, bearing capacity and pile quality. When drilling piles are carried out in a silty soft soil environment, the pile foundation enters the bearing layer. The pile length is about 50m, and the construction difficulty is relatively high. FHDF high-efficiency mud bentonite can well increase the mud production and reduce labor costs. HDF high-efficiency mud bentonite has a flocculating effect on mud particles, which can make the mud particles in the drilling process block the coarse gaps on the mud wall surface, and the fine dispersion of mud blocks the fine pores, which can effectively compact the mud skin, reduce water loss, reduce filtration, and have a short penetration distance. In addition, FHDF high-efficiency mud bentonite also has good thixotropic properties, fast network structure formation and viscosity recovery, and moderate gel strength. Therefore, the increase in restart resistance after shutdown is limited, and the construction is more convenient. It can greatly improve the construction efficiency and speed up the construction progress. It is used to replace ordinary bentonite as the mud wall protection for reinforced concrete bored piles, which can greatly increase the mud output, reduce labor costs, and ensure safe construction and production on site.

[0003] Bentonite is a non-metallic mineral with montmorillonite as the main mineral component. The montmorillonite structure is a 2:1 type crystal structure composed of two silicon-oxygen tetrahedrons sandwiching a layer of aluminum-oxygen octahedron. Due to the presence of certain cations such as Cu, Mg, Na, K, etc. in the layered structure formed by the montmorillonite unit cell, and the interaction between these cations and the montmorillonite unit cell is very unstable and easily exchanged by other cations, it has good ion exchangeability. When producing bentonite, in order to avoid a large content of large sand particles, a mud desanding device is required to separate the sand particles.

[0004] The cyclone is a common mud sand removal device. When in use, the mud and sand in the high-speed flow channel will cause considerable wear to the inside of the device. When the wear is severe, the entire device needs to be replaced, and the worn parts cannot be replaced individually, so the service life cannot be extended. Utility Model Content

[0005] The utility model aims to provide a mud sand removal device for bentonite production to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A mud sand removal device for bentonite production, comprising a cylinder body, an inlet pipe is fixedly installed on the outer side of the cylinder body, a sand settling pipe is fixedly installed at the lower end of the cylinder body, a cover plate is arranged at the upper end of the cylinder body, an outlet pipe is fixedly installed at the upper end of the cover plate, a clamping groove is opened inside the cylinder body, a first sheath is sleeved inside the clamping groove, through holes are opened on the surface of the first sheath, an inner sleeve is sleeved inside the outlet pipe, a guiding groove is opened on the outer side of the inner sleeve, a guiding block is fixedly installed inside the outlet pipe, a limiting ring is fixedly installed at the lower end of the inner sleeve, a second sheath is sleeved on the outer side of the inner sleeve, a positioning screw is threadedly installed on the outer side of the outlet pipe, and positioning holes are opened on the outer side of the inner sleeve.

[0007] Preferably, the inlet pipe and the sand settling pipe are respectively communicated with the inside of the cylinder body, and the centers of the sand settling pipe and the cylinder body are located on the same vertical line.

[0008] Preferably, the cover plate is fixedly connected to the cylinder body by bolts, and a sealing ring is arranged between the cover plate and the cylinder body.

[0009] Preferably, there are two clamping grooves and the first sheaths respectively, the through holes are located at the opening of the inlet pipe, and the upper end of the cover plate is attached to the upper end of the first sheath.

[0010] Preferably, the guiding block is attached to the inside of the guiding groove, and the guiding block and the guiding groove are respectively arranged in a circular shape with four.

[0011] Preferably, the lower end of the second sheath is attached to the upper end of the limiting ring, and the upper end of the second sheath is attached to the lower end of the cover plate.

[0012] Preferably, the positioning screw extends into the positioning hole, and the positioning screw and the positioning hole are respectively arranged in a circular shape with four.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. The present utility model opens a clamping groove inside the cylinder body, and the first sheath is installed in the clamping groove to play a protective role for the inner wall of the cylinder body. When the first sheath is worn, the cover plate is removed, and the first sheath can be taken out and replaced;

[0015] 2. The present utility model arranges an inner sleeve inside the outlet pipe, which is fixed by a positioning screw. The second sheath is sleeved on the outer side of the inner sleeve to play a protective role for the inner sleeve. When the second sheath is worn, the inner sleeve is removed, and the second sheath can be taken out and replaced, without the need to replace the whole, effectively improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1Schematic diagram of the three-dimensional structure of the present utility model;

[0017] Figure 2 Schematic diagram of the sectional structure of the present utility model;

[0018] Figure 3 Schematic diagram of the sectional structure of the cylinder body of the present utility model;

[0019] Figure 4 Schematic diagram of the exploded structure of the cover plate of the present utility model.

[0020] Wherein: 1. Cylinder body; 2. Feed pipe; 3. Sand settling pipe; 4. Cover plate; 5. Discharge pipe; 6. Card slot; 7. Sheath one; 8. Through hole; 9. Inner sleeve; 10. Guide groove; 11. Guide block; 12. Limit ring; 13. Sheath two; 14. Positioning screw; 15. Positioning hole. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1

[0023] Please refer to Figure 1 , in the figure, a mud sand removal device for bentonite production includes a cylinder body 1. A feed pipe 2 is fixedly installed on the outer side of the cylinder body 1. A sand settling pipe 3 is fixedly installed at the lower end of the cylinder body 1. A cover plate 4 is arranged at the upper end of the cylinder body 1. A discharge pipe 5 is fixedly installed at the upper end of the cover plate 4. A card slot 6 is opened inside the cylinder body 1. A sheath one 7 is sleeved inside the card slot 6. Through holes 8 are opened on the surface of the sheath one 7. An inner sleeve 9 is sleeved inside the discharge pipe 5. Guide grooves 10 are opened on the outer side of the inner sleeve 9. A guide block 11 is fixedly installed inside the discharge pipe 5. A limit ring 12 is fixedly installed at the lower end of the inner sleeve 9. A sheath two 13 is sleeved on the outer side of the inner sleeve 9. A positioning screw 14 is threadedly installed on the outer side of the discharge pipe 5. Positioning holes 15 are opened on the outer side of the inner sleeve 9.

[0024] Please refer to Figure 2 , the feed pipe 2 and the sand settling pipe 3 are respectively communicated with the inside of the cylinder body 1, and the center of the sand settling pipe 3 and the center of the cylinder body 1 are located on the same vertical line.

[0025] In this embodiment: The feed pipe 2 is connected to the mud pipeline, and the mud is transmitted to the inside of the cylinder body 1 through the feed pipe 2. Through the principle of centrifugal sedimentation, the large particle sand grains and a small amount of liquid in the mud are discharged through the sand settling pipe 3, and the remaining mud is discharged through the inner sleeve 9.

[0026] Please refer to Figure 1 , the cover plate 4 is fixedly connected to the cylinder body 1 by bolts, and a sealing ring is arranged between the cover plate 4 and the cylinder body 1.

[0027] In this embodiment: The cover plate 4 closes the opening at the upper end of the cylinder body 1 by bolts, and the sealing ring improves the sealing performance between the cover plate 4 and the cylinder body 1.

[0028] Please refer to Figure 3 , there are two clamping grooves 6 and the first sheath 7 respectively, the through hole 8 is located at the opening of the feed pipe 2, and the cover plate 4 fits with the upper end of the first sheath 7.

[0029] In this embodiment: The first sheath 7 is installed inside the clamping groove 6 from top to bottom, the cover plate 4 prevents the first sheath 7 from moving. When the first sheath 7 is worn, it is taken out from the clamping groove 6 and replaced.

[0030] Working principle: The feed pipe 2 is connected to the mud pipeline, and the mud is transmitted to the inside of the cylinder body 1 through the feed pipe 2. Through the principle of centrifugal sedimentation, the large particle sand grains and a small amount of liquid in the mud are discharged through the sand settling pipe 3, and the remaining mud is discharged through the inner sleeve 9. The first sheath 7 and the second sheath 13 play a protective role on the inner wall of the cylinder body 1 and the outer surface of the inner sleeve 9. When the first sheath 7 and the second sheath 13 are worn, the cover plate 4 is removed, the first sheath 7 is taken out from the clamping groove 6 and replaced, then the positioning screw 14 is removed, the inner sleeve 9 is moved out from the discharge pipe 5, the second sheath 13 is taken off from the outside of the inner sleeve 9 and replaced. After that, the inner sleeve 9 is installed inside the discharge pipe 5 from bottom to top, and the guide groove 10 is aligned with the guide block 11. After the inner sleeve 9 passes through the discharge pipe 5, the positioning screw 14 is rotated into the positioning hole 15 to position the inner sleeve 9. Finally, the cover plate 4 closes the opening at the upper end of the cylinder body 1 by bolts, and the sealing ring improves the sealing performance between the cover plate 4 and the cylinder body 1. Then it can be used continuously without replacing the whole, effectively improving the service life of the device.

[0031] Embodiment 2

[0032] Please refer to Figure 4 , the guide block 11 fits with the inside of the guide groove 10, and the guide block 11 and the guide groove 10 are respectively arranged in a circular shape with four.

[0033] In this embodiment: The inner sleeve 9 is installed inside the discharge pipe 5 from bottom to top, and the guide groove 10 is aligned with the guide block 11.

[0034] Please refer to Figure 2, the lower end of the second sheath 13 is in contact with the upper end of the limit ring 12, and the upper end of the second sheath 13 is in contact with the lower end of the cover plate 4.

[0035] In this embodiment: The second sheath 13 is sleeved on the outer side of the inner sleeve 9. When the second sheath 13 is worn, it is removed from the outer side of the inner sleeve 9 and replaced.

[0036] Please refer to Figure 2 , the positioning screw 14 extends into the positioning hole 15, and four positioning screws 14 and positioning holes 15 are respectively arranged in a ring shape.

[0037] In this embodiment: When the inner sleeve 9 passes through the discharge pipe 5, the positioning screw 14 is rotated into the positioning hole 15 to position the inner sleeve 9.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including" - "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process - method - article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process - method - article or device.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slurry desanding device for bentonite production, comprising a cylinder (1), characterized in that: A feed pipe (2) is fixedly mounted on the outer side of the cylinder (1), a sand settling pipe (3) is fixedly mounted on the lower end of the cylinder (1), a cover plate (4) is arranged on the upper end of the cylinder (1), a discharge pipe (5) is fixedly mounted on the upper end of the cover plate (4), a groove (6) is provided on the inner side of the cylinder (1), a sleeve (7) is sleeved and mounted on the inner side of the groove (6), a through hole (8) is provided on the surface of the sleeve (7), and the discharge pipe (5) is provided with a through hole (8). An inner sleeve (9) is sleeved and installed on the inner side, a guide groove (10) is provided on the outer side of the inner sleeve (9), a guide block (11) is fixedly installed on the inner side of the discharge pipe (5), a limiting ring (12) is fixedly installed on the lower end of the inner sleeve (9), a sleeve 2 (13) is sleeved and installed on the outer side of the inner sleeve (9), a positioning screw (14) is threadedly installed on the outer side of the discharge pipe (5), and a positioning hole (15) is provided on the outer side of the inner sleeve (9).

2. A slurry sand removal device for bentonite production according to claim 1, characterized in that: The feed pipe (2) and the sand settling pipe (3) are respectively connected to the interior of the cylinder (1), and the center of the sand settling pipe (3) and the center of the cylinder (1) are located on the same vertical line.

3. A slurry sand removal device for bentonite production according to claim 1, characterized in that: The cover plate (4) is fixedly connected to the cylinder (1) by means of bolts, and a sealing ring is provided between the cover plate (4) and the cylinder (1).

4. A slurry sand removal device for bentonite production according to claim 1, characterized in that: The card slot (6) and the sleeve (7) are respectively provided with two, the through hole (8) is located at the opening of the feed pipe (2), and the cover plate (4) is fitted with the upper end of the sleeve (7).

5. The slurry desanding device for bentonite production according to claim 1, characterized in that: The guide block (11) is fitted with the inner side of the guide groove (10), and four guide blocks (11) and four guide grooves (10) are respectively arranged in an annular shape.

6. A slurry sand removal device for bentonite production according to claim 1, characterized in that: The lower end of the second protective sleeve (13) is in contact with the upper end of the limiting ring (12), and the upper end of the second protective sleeve (13) is in contact with the lower end of the cover plate (4).

7. A slurry sand removal device for bentonite production according to claim 1, characterized in that: The positioning screw (14) extends to the interior of the positioning hole (15), and the positioning screw (14) and the positioning holes (15) are respectively provided in four annular shapes.

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