Screen mesh of inclined screen solid-liquid separator

Abstract

The utility model provides an inclined screen solid-liquid separator screen, which relates to the technical field of separator screens, and comprises an inner screen drum and an outer precise filter screen drum, the front end of the inner screen drum is provided with a left connecting pipe, the left connecting pipe is assembled with a left joint, the inner screen drum is sleeved with the outer precise filter screen drum, and the outer precise filter screen drum is assembled with a right joint. A filter residue output pipe is arranged on the rear portion of the inner screen drum, a right connector is assembled outside the filter residue output pipe, the center of the inner screen drum and the center of the outer precise filter screen drum are located on the same axis, a front filter screen face is arranged on the front portion of the inner screen drum, a middle filter screen face is arranged on the rear portion of the inner screen drum, and the front portion of the inner screen drum is thick, and the rear portion of the inner screen drum is thin. Materials conveyed into the inner screen drum can be conveniently subjected to gradual extrusion type tightening solid-liquid separation, liquid obtained after solid-liquid separation is precisely filtered again, the cleanliness of solid-liquid separation of the materials can be improved, the inner screen drum and the outer precise filter screen drum are convenient to assemble or disassemble to be cleaned and maintained, and high efficiency and practicability are achieved.

Description

Technical Field

[0001] This utility model relates to the field of separator screen technology, specifically to a sieve for an inclined screen solid-liquid separator. Background Technology

[0002] Untreated manure entering the biogas digester greatly increases the organic load per unit volume, thus requiring a significant increase in the digester's volume. Long-term use of the digester leaves behind a large amount of residue after fermentation, causing blockages, reducing its capacity, and rendering it unusable. Cleaning the digester is labor-intensive, extremely unsafe, and increases expenses. Directly selling fresh pig manure is also difficult due to transportation challenges. Therefore, we discovered that solid-liquid separation should be performed before processing the pig manure.

[0003] The specification of a slanted screen solid-liquid separator in the prior art (publication number CN206690594U) mentions that "the internal part of the extrusion dewatering machine is provided with a spiral extrusion drum, one end of the spiral extrusion drum is provided with an extrusion shaft, the top of the spiral extrusion drum is provided with a feed inlet, the bottom of the spiral extrusion drum is provided with a filter screen, one side of the spiral extrusion drum is provided with a solid material outlet, the inside of the solid material outlet is provided with a discharge rotating blade, and the bottom of the spiral extrusion drum is provided with a liquid outlet pipe." However, the filter screen in the prior art adopts a straight cylindrical structure, which is not tight, resulting in uneven solid-liquid separation, and the separated liquid is not fine and pure, making it inefficient and impractical. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, a screen for a slanted screen solid-liquid separator is provided to solve the problems of existing filters using a straight cylindrical structure, which results in uneven solid-liquid separation and the separated liquid being neither fine nor pure, thus making it inefficient and impractical.

[0005] To achieve the above objectives, a screen for an inclined screen solid-liquid separator is provided, comprising an inner screen cylinder and an outer precision filter cylinder. The front end of the inner screen cylinder is provided with a left connecting pipe, and the left connecting pipe is assembled with a left connector. The outer precision filter cylinder is fitted over the inner screen cylinder, and the outer precision filter cylinder is detachably connected to the inner screen cylinder. The rear part of the inner screen cylinder is provided with a filter residue output pipe, and a right connector is assembled on the outside of the filter residue output pipe. The centers of the inner screen cylinder and the outer precision filter cylinder are located on the same axis, and both the left and right connectors are detachable structures.

[0006] Furthermore, the inner screen cylinder has a front filter screen at the front and a middle filter screen at the rear, and the inner screen cylinder is configured with a coarse front and a fine rear.

[0007] Furthermore, a sleeve hole is provided on the inner side of the left connecting pipe, and an outer limiting block is provided on the outer ring surface of the left connecting pipe, and the left connecting pipe is connected to the filter residue output pipe.

[0008] Furthermore, an outer washer, a middle washer, and an inner washer are sequentially arranged inside the sleeve hole from front to back, and the outer washer, the middle washer, and the inner washer are all made of rubber.

[0009] Furthermore, the front end of the outer precision filter cylinder is provided with a front sleeve opening, and the rear end of the outer precision filter cylinder is provided with a rear sleeve opening.

[0010] Furthermore, the front sleeve is fitted outside the front part of the inner screen cylinder, and the rear sleeve is fitted outside the filter residue output pipe.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. The front and middle filter screens of this utility model can perform large-area filtration of materials entering the inner screen cylinder. Moreover, the inner screen cylinder is coarse at the front and fine at the back, so that the material conveyed in the inner screen cylinder gradually concentrates and is squeezed backward, which helps to accelerate the solid-liquid separation of the material.

[0013] 2. In this utility model, the inner gasket, middle gasket and outer gasket are placed in the sleeve hole opened in the left connecting pipe to increase the leak-proof tightness of the material conveying into the inner screen cylinder, and it is also convenient to assemble and remove, making it safer and more practical.

[0014] 3. The purpose of this utility model is to further filter the liquid filtered from the inner screen cylinder, resulting in finer and purer filtration, which helps to improve the solid-liquid separation effect of the material. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the inner screen cylinder of an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the outer precision filter cylinder of an embodiment of the present invention.

[0019] In the diagram: 1. Inner screen cylinder; 10. Front filter screen surface; 11. Middle filter screen surface; 12. Filter residue output pipe; 13. Left connecting pipe; 14. Sleeve hole; 15. Outer limiting block; 16. Inner gasket; 17. Middle gasket; 18. Outer gasket; 2. Outer precision filter screen cylinder; 20. Front sleeve opening; 21. Rear sleeve opening; 3. Left connector; 4. Right connector. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Specific details such as particular system structures and technologies are provided to facilitate a more thorough understanding of the embodiments of this utility model. The described embodiments are some, but not all, of the embodiments disclosed herein. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0021] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model. Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present utility model. Figure 3 This is a schematic diagram of the inner screen cylinder of an embodiment of the present utility model. Figure 4 This is a schematic diagram of the outer precision filter cylinder of an embodiment of the present invention.

[0023] Reference Figures 1 to 4 As shown, this utility model provides a screen for an inclined screen solid-liquid separator, including an inner screen cylinder 1 and an outer precision filter cylinder 2. The front end of the inner screen cylinder 1 is provided with a left connecting pipe 13, and the left connecting pipe 13 is assembled with a left connector 3. The outer precision filter cylinder 2 is wrapped around the inner screen cylinder 1, and the outer precision filter cylinder 2 is detachably connected to the inner screen cylinder 1. The rear part of the inner screen cylinder 1 is provided with a filter residue output pipe 12, and a right connector 4 is assembled on the outside of the filter residue output pipe 12. The centers of the inner screen cylinder 1 and the outer precision filter cylinder 2 are located on the same axis, and the left connector 3 and the right connector 4 are both detachable structures.

[0024] In this embodiment, the front part of the inner screen cylinder 1 is provided with a front filter screen 10, and the rear part of the inner screen cylinder 1 is provided with a middle filter screen 11, and the inner screen cylinder 1 is configured with a coarse front and a fine rear.

[0025] As a preferred embodiment, the front filter screen 10 and the middle filter screen 11 in this utility model can perform large-area filtration of the material entering the inner screen cylinder 1. Moreover, the inner screen cylinder 1 is coarse at the front and fine at the back, so that the material conveyed in the inner screen cylinder 1 is gradually concentrated and squeezed backward, which helps to accelerate the solid-liquid separation of the material.

[0026] In this embodiment, a sleeve hole 14 is provided on the inner side of the left connecting pipe 13, and an outer limiting block 15 is provided on the outer ring surface of the left connecting pipe 13. The left connecting pipe 13 is connected to the filter residue output pipe 12. An outer washer 18, a middle washer 17 and an inner washer 16 are sequentially sleeved in the sleeve hole 14 from front to back. The outer washer 18, the middle washer 17 and the inner washer 16 are all made of rubber.

[0027] As a preferred embodiment, the inner washer 16, middle washer 17 and outer washer 18 are fitted into the sleeve hole 14 in the left connecting pipe 13 to increase the leak-proof tightness of the material conveying into the inner screen cylinder 1, and also to facilitate assembly and removal, making it safer and more practical.

[0028] In this embodiment, the front end of the outer precision filter cylinder 2 is provided with a front sleeve 20, and the rear end of the outer precision filter cylinder 2 is provided with a rear sleeve 21; the front sleeve 20 is fitted outside the front part of the inner screen cylinder 1, and the rear sleeve 21 is fitted outside the filter residue output pipe 12.

[0029] As a preferred embodiment, the outer precision filter cylinder 2 in this utility model is designed to perform a second filtration process on the liquid filtered out of the inner screen cylinder 1, resulting in finer and purer filtration and improving the solid-liquid separation effect of the material.

[0030] This invention effectively solves the problem in existing technologies where the filter screen uses a straight cylindrical structure, resulting in loose filtration, uneven solid-liquid separation, and a less refined and pure liquid, making it inefficient and impractical. This invention facilitates gradual compression and solid-liquid separation of materials fed into the inner screen cylinder. The separated liquid is then further filtered precisely, which helps improve the cleanliness of the solid-liquid separation. Moreover, the inner screen cylinder and outer precision filter cylinder are easy to assemble or disassemble for cleaning and maintenance, making it more efficient and practical.

[0031] The above embodiments are used to explain and illustrate the present utility model, and not to limit the utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims should be included within the protection scope of the present utility model.

Claims

1. A screen for a inclined screen solid-liquid separator, characterized by: Including inner sieve cylinder (1) and outer precision filter screen cylinder (2), the front end of the inner sieve cylinder (1) is provided with left connecting pipe (13), and the left connecting pipe (13) is assembled with left joint (3), the outer sleeve of the inner sieve cylinder (1) is provided with outer precision filter screen cylinder (2), and the outer precision filter screen cylinder (2) and the inner sieve cylinder (1) are split connected, the rear part of the inner sieve cylinder (1) is provided with filter residue output pipe (12), and the right joint (4) is assembled outside the filter residue output pipe (12), the center of the inner sieve cylinder (1) and the outer precision filter screen cylinder (2) is located on the same axis, and the left joint (3) and the right joint (4) are all detachable structure.

2. A screen for a solid-liquid separator according to claim 1, wherein The front part of the inner sieve cylinder (1) is provided with front filter screen surface (10), the rear part of the inner sieve cylinder (1) is provided with middle filter screen surface (11), and the inner sieve cylinder (1) is provided with front coarse and rear fine.

3. A screen for a solid-liquid separator according to claim 1, wherein The inside of the left connecting pipe (13) is provided with sleeve hole (14), the outer ring surface of the left connecting pipe (13) is provided with outer limiting block (15), and the left connecting pipe (13) and the filter residue output pipe (12) are communicated.

4. A screen for a solid-liquid separator according to claim 3, wherein The sleeve hole (14) is sequentially provided with outer gasket (18), middle gasket (17) and inner gasket (16) from front to back, and the outer gasket (18), the middle gasket (17) and the inner gasket (16) are all made of rubber material.

5. A screen for a solid-liquid separator according to claim 1, wherein The front end of the outer precision filter screen cylinder (2) is provided with front sleeve opening (20), and the rear end of the outer precision filter screen cylinder (2) is provided with rear sleeve opening (21).

6. A screen for a solid-liquid separator according to claim 5, wherein The front sleeve opening (20) is sleeved outside the front part of the inner sieve cylinder (1), and the rear sleeve opening (21) is sleeved outside the filter residue output pipe (12).

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