On-line adjusting liquid blocking device of horizontal screw centrifuge

Abstract

The utility model belongs to the technical field of horizontal screw centrifugal machines, and relates to an on-line adjusting liquid blocking device of a horizontal screw centrifugal machine, which comprises a liquid blocking plate and an adjusting unit, and the liquid blocking plate is movably connected to a housing of the horizontal screw centrifugal machine through the adjusting unit; and the liquid blocking plate is close to or far away from a water through hole of a large-end flange of the horizontal screw centrifuge through the adjusting unit. After the structure is adopted, the horizontal screw centrifugal machine has the beneficial effects that under the condition that the horizontal screw centrifugal machine is not stopped, the screw rod can move in the axial direction of the horizontal screw centrifugal machine in the housing by rotating the screw rod of the adjusting unit, the liquid blocking plate is driven to be close to or far away from the water through hole, and the overflowing area of the water through hole is reduced or increased; therefore, the water passing amount of the water passing hole is reduced or increased; the efficiency and safety of the whole equipment are improved, meanwhile, adjustment is more convenient, and the horizontal screw centrifugal machine liquid blocking adjusting device is a novel horizontal screw centrifugal machine liquid blocking adjusting mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of horizontal screw centrifuges, in particular to an online regulating and liquid blocking device for horizontal screw centrifuges. Background Art

[0002] The horizontal spiral centrifuge is a separation machine that relies on the density difference between the solid and liquid phases to accelerate the sedimentation rate of the solid phase particles under the action of centrifugal force to achieve solid-liquid separation.

[0003] In a decanter centrifuge, sludge is fed into the bowl through the sludge feed pipe and immediately drawn into the bowl cavity by the centrifugal force generated by high-speed rotation. Due to their high specific gravity and the strong centrifugal force, sludge particles are thrown against the inner wall of the bowl, forming a solid layer. Water, due to its low density and the weak centrifugal force, forms a liquid layer inside the solid ring layer, known as the liquid ring layer. The sludge in the solid layer is slowly conveyed by the screw conveyor to the slag outlet on the small end flange of the bowl for continuous discharge. The liquid in the liquid ring layer is discharged through the liquid outlet on the large end flange.

[0004] The liquid blocking plate is a very important structure for regulating the working conditions in the horizontal screw centrifuge. Its function is to adjust the thickness of the liquid ring layer. By adjusting the thickness of the liquid ring layer, the effective length of the sedimentation zone and the drying zone of the drum can be changed. If the diameter of the liquid blocking plate is small, the sedimentation zone will increase, the drying zone will decrease, the liquid pool depth of the drum will increase, and the solid content in the liquid phase after separation can be reduced, but the moisture content of the solid phase sediment will increase. On the contrary, if the diameter of the liquid blocking plate is increased, the length of the sedimentation zone will decrease, the length of the drying zone will increase, the solid content in the liquid phase after separation will deteriorate, and the moisture content of the solid phase sediment will decrease.

[0005] Traditionally, adjusting the liquid retaining plate requires replacing retaining plates with different inner diameters after the machine has been shut down to adjust the thickness of the liquid ring layer. For example, patent publication number CN201823612U discloses a retaining plate for a decanter centrifuge. This type of adjustment is limited to a few specific, fixed operating conditions because the retaining plate's inner diameter is fixed after fabrication. Furthermore, replacement requires shutdown, making it impossible to monitor the actual solid-liquid separation status in real time, resulting in low efficiency. Therefore, improvements are necessary. Utility Model Content

[0006] In order to solve the above problems in the prior art, the utility model provides an online adjustment and liquid blocking device for a horizontal screw centrifuge, which improves the efficiency and safety of the horizontal screw centrifuge, is more convenient to adjust, and has strong practicality.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] As one aspect of the present invention, an online adjustment and liquid blocking device for a horizontal screw centrifuge is proposed, which includes: a liquid blocking plate and an adjustment unit, wherein the liquid blocking plate is movably connected to the cover of the horizontal screw centrifuge through the adjustment unit; the liquid blocking plate is moved closer to or away from the water through-hole of the large end flange of the horizontal screw centrifuge through the adjustment unit.

[0009] Optionally, the liquid blocking plate is annular, and its width is greater than the size of the water hole.

[0010] Optionally, a liquid guide plate is further included, which is connected to the large end flange and has a liquid guide slope formed on the liquid guide plate.

[0011] Optionally, there are two groups of regulating units, and the two groups of regulating units are symmetrically arranged around the center of the liquid blocking plate.

[0012] Optionally, the adjusting unit includes a screw having a cap and a rod connected to the cap; the cap of the screw is movably connected to the liquid blocking plate through a limiter; the rod of the screw is threadedly connected to a nut provided on the cover.

[0013] Optionally, the other end of the rod portion of the screw is connected to an end connector for easy rotation.

[0014] Optionally, a clearance groove is provided on the liquid blocking plate, and the clearance groove is used for the clearance of the cap of the screw; an installation groove is provided on the liquid blocking plate, and the installation groove is located above the clearance groove, and the installation groove is used for the installation of a limiting member. When the screw is connected to the liquid blocking plate, the cap of the screw cooperates with the clearance groove, and the screw can rotate relative to the liquid blocking plate; the limiting member is connected to the installation groove to axially limit the cap of the screw.

[0015] The online adjustment and liquid blocking device of the horizontal screw centrifuge of the present invention has the beneficial effects of: when the horizontal screw centrifuge is not stopped, by rotating the screw of the adjustment unit, the screw can move along the axial direction of the horizontal screw centrifuge in the cover shell, driving the liquid blocking plate to approach or move away from the water through hole, so that the flow area of ​​the water through hole is reduced or increased, thereby reducing or increasing the water flow rate of the water through hole; improving the efficiency and safety of the entire equipment, and making adjustment more convenient. It is a new type of liquid blocking form for horizontal screw centrifuge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0017] Figure 1 This is a structural stereogram of the online regulating liquid blocking device of the horizontal screw centrifuge of the present utility model;

[0018] Figure 2 This is a structural cross-sectional view of the online regulating and liquid blocking device of the horizontal screw centrifuge of the present utility model;

[0019] Figure 3 This is a structural front view of the liquid blocking plate and the regulating unit of the present utility model;

[0020] Figure 4 This is a rear view of the structure of the liquid blocking plate and the regulating unit of the present invention;

[0021] Figure 5 This is a structural exploded view of the liquid blocking plate and the regulating unit of the present invention. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the following will provide a clear and complete description of the technical solutions of the present invention in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0023] An online regulating and blocking device for a horizontal screw centrifuge according to an embodiment of the present application is as follows: Figure 1-Figure 5 As shown, it includes: a liquid blocking plate 1 and an adjusting unit 2, wherein the liquid blocking plate 1 is movably connected to the cover 3 of the horizontal screw centrifuge through the adjusting unit 2; the liquid blocking plate 1 is moved closer to or farther away from the water hole 41 of the large end flange 4 of the horizontal screw centrifuge through the adjusting unit 2, so that the flow area of ​​the water hole 41 is reduced or increased, thereby reducing or increasing the water flow through the water hole 41.

[0024] In one embodiment, the liquid blocking plate 1 is annular, and its width is greater than the size of the water through hole 41, which can achieve a better interception effect.

[0025] In one embodiment, if Figure 1-Figure 2 As shown, it also includes a liquid guide plate 5, which is connected to the large end flange 4. A liquid guide slope 51 is formed on the liquid guide plate 5 to facilitate the drainage of liquid from the water hole 41.

[0026] In one embodiment, if Figure 2-Figure 5As shown, there are two groups of adjusting units 2, and the two groups of adjusting units 2 are symmetrically arranged around the center of the liquid blocking plate 1; the adjusting unit 2 includes a screw 21, and the screw 21 has a cap and a rod connected to the cap; the cap of the screw 21 is movably connected to the liquid blocking plate 1 through a limiter 22; the rod of the screw 21 is threadedly connected to a nut 23 provided on the cover 3; the screw 21 is rotated so that the screw 21 can move axially along the horizontal screw centrifuge in the cover 3, driving the liquid blocking plate 1 to approach or move away from the water hole 41, so that the flow area of ​​the water hole 41 is reduced or increased, thereby reducing or increasing the water flow through the water hole 41.

[0027] In one embodiment, the other end of the rod portion of the screw rod 21 is connected to an end connector 24 for easy rotation, such as an external hexagonal fastener, to facilitate the rotation of the screw rod 21 .

[0028] In one embodiment, if Figure 2-Figure 5 As shown, the liquid blocking plate 1 is provided with a clearance groove 11, and the clearance groove 11 is used for the clearance of the cap of the screw 21; the liquid blocking plate 1 is provided with a mounting groove 12, and the mounting groove 12 is located above the clearance groove 11, and the mounting groove 12 is used for the installation of a limiting member 22. When the screw 21 is connected to the liquid blocking plate 1, the cap of the screw 21 cooperates with the clearance groove 11, and the screw 21 can rotate relative to the liquid blocking plate 1; the limiting member 22 is connected to the mounting groove 12, and the cap of the screw 21 is axially limited to prevent the screw 21 from detaching from the liquid blocking plate 1.

[0029] In this embodiment, when the horizontal screw centrifuge is not stopped, the screw 21 is rotated so that the screw 21 can move axially along the horizontal screw centrifuge in the housing 3, driving the liquid blocking plate 1 to approach or move away from the water hole 41, so that the flow area of ​​the water hole 41 is reduced or increased, thereby reducing or increasing the water flow rate of the water hole 41; improving the efficiency and safety of the entire equipment, and making adjustment more convenient, which is a new type of horizontal screw centrifuge adjustment liquid blocking form.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0032] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0033] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0034] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0035] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model in specific circumstances.

[0036] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. An online regulating and blocking device for a horizontal screw centrifuge, characterized in that: It includes: a liquid blocking plate and an adjusting unit, wherein the liquid blocking plate is movably connected to the housing of the decanter centrifuge through the adjusting unit; The liquid blocking plate is moved closer to or farther away from the water through hole of the large end flange of the horizontal screw centrifuge through the regulating unit.

2. The online liquid blocking device for a horizontal screw centrifuge according to claim 1, characterized in that: The liquid blocking plate is annular, and its width is greater than the size of the water through hole.

3. The online liquid blocking device for a horizontal screw centrifuge according to claim 1, wherein: It also includes a liquid guide plate, which is connected to the large end flange and has a liquid guide slope formed on it.

4. The online liquid blocking device for a decanter centrifuge according to claim 1, wherein: There are two groups of regulating units, and the two groups of regulating units are symmetrically arranged around the center of the liquid blocking plate.

5. The online regulating and blocking liquid device of the horizontal screw centrifuge according to claim 4, characterized in that: The adjusting unit includes a screw having a cap and a rod connected to the cap; the cap of the screw is movably connected to the liquid blocking plate through a limiter; the rod of the screw is threadedly connected to a nut provided on the cover.

6. The online liquid-blocking device for a decanter centrifuge according to claim 5, characterized in that: The other end of the rod portion of the screw is connected to an end connector for easy rotation.

7. The online liquid-blocking device for a decanter centrifuge according to claim 5, characterized in that: The liquid blocking plate is provided with a clearance groove, which is used for the clearance of the cap of the screw; the liquid blocking plate is provided with an installation groove, which is located above the clearance groove and is used for the installation of a limiting member. When the screw is connected to the liquid blocking plate, the cap of the screw cooperates with the clearance groove, and the screw can rotate relative to the liquid blocking plate; the limiting member is connected to the installation groove to axially limit the cap of the screw.

Images