Horizontal spiral discharging and filtering centrifugal machine of non-filter-screen structure

Abstract

The utility model discloses a horizontal type spiral discharging and filtering centrifugal machine of a non-filter-screen structure. The horizontal type spiral discharging and filtering centrifugal machine comprises a driver, an NC differential mechanism, a bearing seat, an outer shaft, an inner shaft, a shell cover, a rotary drum, a spiral wheel drum with meshes, a feeding pipe and a cleaning pipe. According to the embodiment of the utility model, no filter screen is used in the solid-liquid separation process and the washing and filtering process, so that the manufacturing cost and the manufacturing difficulty of equipment are effectively reduced, and meanwhile, a foundation is provided for miniaturization of the equipment.

Description

Technical Field

[0001] The utility model relates to the field of solid-liquid separation, in particular to a horizontal spiral unloading filtering centrifuge with a non-filter screen structure. Background Art

[0002] In the production process of polyphenylene sulfide, conventional filter centrifuges can easily cause genuine products to be separated out along with oligomer secondary products, affecting the yield of genuine polyphenylene sulfide products. At the same time, the filter is easily deformed or perforated by solid materials, which can easily lead to failure of dynamic balance of the equipment and leakage of more finished products. To solve this problem, a horizontal spiral unloading filter centrifuge with a non-filter structure is selected based on the original equipment. The horizontal spiral unloading filter centrifuge is a solid-liquid separation equipment that uses the principle of filtration to separate suspensions. It can perform solid-liquid separation or centrifugal dehydration on small particles and is equipped with a washing function. When working, the motor drives the drum and the concentrically installed feed screws to rotate at a certain differential speed in the same direction at high speed. The material enters continuously from the feed and is evenly distributed on the filter hole wall of the bottom section of the drum. Under the action of centrifugal force, the liquid phase is discharged from the filter hole of the drum wall. It is discharged from the machine through the discharge port. The solid phase is trapped in the drum to form filter residue, which, under the combined action of the conical component of centrifugal force and the feed screw family, continuously moves toward the large end of the drum and is discharged from the drum and then discharged from the machine through the discharge chute.

[0003] The current spiral unloading filter centrifuge uses a filter in the separation process. During the separation process, the filter is often perforated due to the impact of solid materials, or the filter is blocked by viscous materials such as oligomers, resulting in poor separation effect. At the same time, the impact and deformation of the solid material cause the dynamic balance of the filter to be unbalanced, and the equipment operation failure rate is relatively high. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the purpose of the utility model is to provide a horizontal spiral unloading filtering centrifuge with a non-filter structure, which does not use a filter in the process of solid-liquid separation and washing filtration, reduces the fixed support of the filter, effectively reduces the manufacturing cost and difficulty of the equipment, and provides a basis for the miniaturization of the equipment.

[0005] The purpose of the utility model is achieved through such technical solution:

[0006] A horizontal spiral unloading filtering centrifuge with a non-filter structure, comprising:

[0007] Driver;

[0008] NC differential, the input end is connected to the driver, and the driver drives the NC differential to rotate;

[0009] Bearing seat, connected to the NC differential housing;

[0010] The outer shaft is arranged inside the bearing housing and is connected to an output end of the NC differential;

[0011] The inner shaft is arranged inside the outer shaft and is connected to the other output end of the NC differential;

[0012] The outer shell cover has its head connected to the bearing housing, and forms a closed space with the bearing housing inside; the outer shaft and the inner shaft are located inside the closed space; a liquid outlet is arranged below the head of the outer shell cover, and a discharge outlet is arranged below the tail of the outer shell cover;

[0013] The drum is tubular and is coaxially connected to the outer shaft; the outer contour of the drum is gourd-shaped, and the opening at the head is larger than the opening at the tail; a liquid flow port is arranged on the end face of the head of the drum, and the liquid flow port is directly above the liquid outlet; the tail of the drum is directly above the discharge outlet;

[0014] The spiral drum with mesh holes is tubular, and its inner side is coaxially connected to the inner shaft, and spiral blades are arranged on its outer side; the minimum distance between the end of the spiral blade and the inner wall of the drum does not exceed 1 millimeter; when the inner shaft rotates, the spiral blades rotate, driving the material located between the spiral drum and the drum to move towards the tail of the outer shell cover;

[0015] The feed pipe passes through the outer shell cover and enters the drum;

[0016] The cleaning pipe passes through the outer shell cover and enters the drum, and its liquid outlet is located at the gourd neck of the drum.

[0017] Further, the outer shell cover includes:

[0018] The front pipe has its head end seamlessly connected to the end face of the bearing housing; the drum and the spiral drum are both located inside the front pipe; the feed pipe and the cleaning pipe pass through the front pipe and enter the drum;

[0019] The cover is seamlessly connected to the end face of the front pipe through a hinge.

[0020] Further, the drum includes:

[0021] The connecting disc is connected to the outer end of the outer shaft by screws;

[0022] The connecting plate is annular and is coaxially arranged with the connecting disc, and its inner ring is connected to the outer ring of the connecting disc; a number of liquid flow ports are arranged on the connecting plate and are evenly distributed in a circumferential array around the axis of the outer shaft;

[0023] The rotating cylinder has its head end connected to the outer ring of the connecting plate; the rotating cylinder is gourd-shaped; a number of mesh holes are evenly arranged on the rotating cylinder.

[0024] Further, the rotating cylinder includes:

[0025] The front cylinder expands outward in the middle and tapers inward at the tail; the head end face of the front cylinder is connected to the outer ring of the connecting plate, and the distance from the tail end to the axis of the outer shaft is less than the distance from the liquid outlet to the axis of the outer shaft.

[0026] The rear cylinder expands outward in the middle and tapers inward at the tail; the head end face of the rear cylinder is seamlessly connected to the tail of the front cylinder; the distance from the tail end to the axis of the outer shaft is less than the distance from the tail end of the front cylinder to the axis of the outer shaft; the liquid outlet end of the cleaning pipe is located at the connection between the front cylinder and the rear cylinder.

[0027] The discharge cylinder is in the shape of a circular tube and its head end is seamlessly connected to the tail end of the rear cylinder.

[0028] Further, the front cylinder includes:

[0029] The front guiding pipe has a frustum shape with a smaller head end diameter than the tail end; the head end of the front guiding pipe is connected to the outer ring of the connecting plate.

[0030] The front centrifugal pipe is circular tubular and its head end is seamlessly connected to the tail end of the front guiding pipe.

[0031] The front separation pipe has a frustum shape with a larger head end diameter than the tail end; the head end of the front separation pipe is seamlessly connected to the tail end of the front separation pipe; the head end of the rear cylinder is seamlessly connected to the tail of the front separation pipe; the tail end diameter of the front separation pipe is less than the head end diameter of the front guiding pipe.

[0032] Further, the rear cylinder includes:

[0033] The rear guiding pipe has a frustum shape with a smaller head end diameter than the tail end; the tail end diameter of the rear guiding pipe is less than the head end diameter of the front separation pipe; the head end of the rear guiding pipe is seamlessly connected to the tail of the front separation pipe.

[0034] The rear centrifugal pipe is circular tubular and its head end is seamlessly connected to the tail end of the rear guiding pipe.

[0035] The rear separation pipe has a frustum shape with a larger head end diameter than the tail end; the head end of the rear separation pipe is seamlessly connected to the tail end of the rear separation pipe; the tail end diameter of the rear separation pipe is less than the tail end diameter of the front separation pipe; the tail end of the rear separation pipe is seamlessly connected to the head end of the discharge cylinder.

[0036] Further, it further includes:

[0037] The first bearing is sleeved on the outer sides of the rear guiding pipe and the front separation pipe and is fixedly connected to the outsides of the rear guiding pipe and the front separation pipe.

[0038] Several first struts have their head ends connected to the outer ring of the first bearing and their tail ends fixedly connected to the inner wall of the housing cover.

[0039] The second bearing is sleeved on the outer side of the discharge cylinder and is fixedly connected to the outside of the discharge cylinder.

[0040] A number of second support rods, with the head end connected to the outer ring of the second bearing and the tail end fixedly connected to the inner wall of the outer housing.

[0041] Furthermore, the head end of the rear guiding pipe is located on the outer side of the tail of the front separation pipe; the projection of the tail end of the front separation pipe is located inside the rear guiding pipe.

[0042] Furthermore, the outer contour of the middle part of the spiral wheel drum is frustum-shaped, with the diameter of the head end larger than that of the tail end, and a number of liquid-permeating holes are provided on the spiral blades of the spiral wheel drum.

[0043] Furthermore, the axis of the feed pipe located inside the drum is collinear with the axis of the drum;

[0044] The cleaning pipe is sleeved on the outer surface of the feed pipe and is coaxial with the feed pipe;

[0045] An inclined guiding ring is provided on the feed pipe; the included angle between the guiding surface of the guiding ring and the flowing direction of the cleaning liquid flowing out of the cleaning pipe is an obtuse angle; the guiding ring is located at the gourd neck of the drum;

[0046] The outer side of the cleaning pipe is sleeved with a third bearing, and the third bearing is located inside the tail of the spiral wheel drum; the third bearing is connected to the tail of the spiral wheel drum through a number of third support rods evenly arranged in a circumferential array.

[0047] Due to the adoption of the above technical solution, the utility model has the following advantages:

[0048] 1. On the basis of a conventional horizontal spiral discharge filtration centrifuge, the structure of the drum is redesigned, and the drum is designed to be gourd-shaped, so that the centrifugation of the drum on the material is divided into multiple regions, and in combination with the cooperation of the blades of the spiral wheel drum, multiple lifting regions are formed to separate the water in the material as much as possible. At the same time, through the gourd-shaped drum, the material forms a primary splash during the separation process and combines with the cleaning water of the cleaning pipe to achieve efficient cleaning.

[0049] 2. There is no filter screen in the whole equipment. Through the centrifugal force of the drum and the through holes of the spiral blades, the liquid is naturally separated, and the situation of reduced solid-liquid separation efficiency and incomplete solid-liquid separation caused by the blockage of the filter screen holes is effectively avoided.

[0050] Other advantages, objectives and features of the utility model will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The drawings of the utility model are described as follows:

[0052] Figure 1 Schematic cross-sectional structure diagram of a horizontal scroll discharge filtration centrifuge with a non-filter structure in the embodiment.

[0053] Figure 2 It is Figure 1 Schematic enlarged structure diagram at position A in

[0054] Figure 3 It is Figure 1 Schematic enlarged structure diagram at position B in

[0055] Figure 4 It is Figure 1 Schematic enlarged structure diagram at position C in

[0056] Figure 5 It is Figure 1 Schematic enlarged structure diagram at position D in

[0057] In the figure: 1. NC differential; 2. Bearing housing; 3. Outer shaft; 4. Inner shaft; 51. Front pipe; 511. Liquid outlet; 512. Discharge port; 52. Cover; 61. Connecting plate; 62. Connecting plate; 621. Liquid flow port; 6311. Front guide pipe; 6312. Front centrifuge tube; 6313. Front separation tube; 6321. Rear guide pipe; 6322. Rear centrifuge tube; 6323. Rear separation tube; 633. Discharge cylinder; 7. Screw drum; 71. Screw blade; 8. Feed pipe; 9. Cleaning pipe; 10. First bearing; 11. First support rod; 12. Second bearing; 13. Second support rod; 14. Guide ring; 15. Third bearing; 16. Third support rod. Specific embodiments

[0058] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0059] Embodiment:

[0060] As Figures 1-5 shown, a horizontal scroll discharge filtration centrifuge with a non-filter structure includes:

[0061] A driver, which can be a motor and is not shown in the figure;

[0062] An NC differential 1, the input end of which is connected to the driver, and the driver drives the NC differential 1 to rotate;

[0063] A bearing housing 2, which is connected to the outer shell of the NC differential 1;

[0064] An outer shaft 3, which is arranged in the bearing housing 2 and is connected to an output end of the NC differential 1;

[0065] An inner shaft 4, which is sleeved inside the outer shaft 3 and is connected to the other output end of the NC differential 1;

[0066] The outer shell cover has its head connected to the bearing seat 2 and forms a closed space with the bearing seat 2 inside; the outer shaft 3 and the inner shaft 4 are located within the closed space; a liquid outlet 511 is provided below the head of the outer shell cover, and a discharge outlet 512 is provided below the tail of the outer shell cover;

[0067] The drum is tubular and is coaxially connected to the outer shaft 3; the outer contour of the drum is gourd-shaped, with the opening at the head being larger than the opening at the tail; a liquid flow port 621 is provided on the end face of the head of the drum, and the liquid flow port 621 is directly above the liquid outlet 511; the tail of the drum is directly above the discharge outlet 512;

[0068] The spiral drum 7 with mesh holes is tubular, with its inner side coaxially connected to the inner shaft 4, and spiral blades 71 are provided on its outer side; the minimum distance between the ends of the spiral blades 71 and the inner wall of the drum does not exceed 1 millimeter; when the inner shaft 4 rotates, the spiral blades 71 rotate, driving the material located between the spiral drum 7 and the drum towards the tail of the outer shell cover;

[0069] The feed pipe 8 passes through the outer shell cover and enters the drum;

[0070] The cleaning pipe 9 passes through the outer shell cover and enters the drum, and its liquid outlet is located at the gourd neck of the drum.

[0071] Based on the conventional horizontal spiral discharge filtering centrifuge, the structure of the drum is redesigned to be gourd-shaped, so that the centrifugation of the drum on the material is divided into multiple regions, and in combination with the cooperation of the blades of the spiral drum 7, multiple lifting regions are formed to separate the water in the material as much as possible. At the same time, the gourd-shaped drum causes the material to form a primary splash during the separation process and combines with the cleaning water of the cleaning pipe 9 to achieve efficient cleaning.

[0072] There is no filter screen in the entire device. Through the centrifugal force of the drum and the through holes of the spiral blades 71, the liquid is naturally separated, effectively avoiding the situation of reduced solid-liquid separation efficiency and incomplete solid-liquid separation caused by the blockage of the filter screen holes.

[0073] In this embodiment, the outer shell cover includes:

[0074] The front pipe 51 has its head end seamlessly connected to the end face of the bearing seat 2; the drum and the spiral drum 7 are both located within the front pipe 51; the feed pipe 8 and the cleaning pipe 9 pass through the front pipe 51 and enter the drum;

[0075] The cover 52 is seamlessly connected to the end face of the front pipe 51 through a hinge.

[0076] It is designed in an opening and closing structure form, which is convenient for installation and maintenance.

[0077] In this embodiment, the drum includes:

[0078] The connecting plate 61 is connected to the outer end of the outer shaft 3 by screws;

[0079] The connecting disk 62 is annular and coaxially arranged with the connecting plate 61. The inner ring is connected to the outer ring of the connecting plate 61. A plurality of liquid flow ports 621 are provided on the connecting disk 62 and are evenly distributed in a circumferential array around the axis of the outer shaft 3;

[0080] The rotating cylinder has its head end connected to the outer ring of the connecting disk 62; the rotating cylinder is in a gourd shape; a plurality of mesh holes are evenly provided on the rotating cylinder.

[0081] Using the connecting plate 61 as the connection structure with the outer shaft 3 facilitates disassembly. Using the connecting disk 62 as the force transmission structure can ensure the stable rotation of the rotating cylinder.

[0082] In this embodiment, the rotating cylinder includes:

[0083] The front cylinder has its middle part expanded outward and its tail part converged inward; the head end face of the front cylinder is connected to the outer ring of the connecting disk 62, and the distance from the tail end to the axis of the outer shaft 3 is less than the distance from the liquid flow port 621 to the axis of the outer shaft 3;

[0084] The rear cylinder has its middle part expanded outward and its tail part converged inward; the head end face of the rear cylinder is seamlessly connected to the tail of the front cylinder; the distance from the tail end to the axis of the outer shaft 3 is less than the distance from the tail end of the front cylinder to the axis of the outer shaft 3; the liquid outlet end of the cleaning pipe 9 is located at the connection between the front cylinder and the rear cylinder;

[0085] The discharge cylinder 633 is in the shape of a round tube, and its head end is seamlessly connected to the tail end of the rear cylinder.

[0086] The front cylinder and the rear cylinder form two-stage centrifugal structures, and by forming a direct height difference at the connection between the front cylinder and the rear cylinder, the material can be scattered, can come into full contact with the water in the cleaning pipe 9, and be cleaned.

[0087] In this embodiment, the front cylinder includes:

[0088] The front guiding pipe 6311 has a frustum-shaped outer contour, and the diameter of its head end is smaller than that of its tail end; the head end of the front guiding pipe 6311 is connected to the outer ring of the connecting disk 62;

[0089] The front centrifugal pipe 6312 is in the shape of a round tube, and its head end is seamlessly connected to the tail end of the front guiding pipe 6311;

[0090] The front separation pipe 6313 has a frustum-shaped outer contour, and the diameter of its head end is larger than that of its tail end; the head end of the front separation pipe 6313 is seamlessly connected to the tail end of the front separation pipe 6313; the head end of the rear cylinder is seamlessly connected to the tail of the front separation pipe 6313; the diameter of the tail end of the front separation pipe 6313 is smaller than the diameter of the head end of the front guiding pipe 6311.

[0091] The design of the front guide pipe 6311 enables the material to move forward in the direction of the separation pipe 6313 under the action of centrifugal force, preventing the material from being discharged through the liquid outlet 621 and improving the separation quality.

[0092] In this embodiment, the rear cylinder includes:

[0093] A rear guide pipe 6321 with a frustum-shaped outer contour, the head end diameter being smaller than the tail end; the tail end diameter of the rear guide pipe 6321 is smaller than the head end diameter of the front separation pipe 6313; the head end of the rear guide pipe 6321 is seamlessly connected to the tail of the front separation pipe 6313;

[0094] A rear centrifugal pipe 6322, circular tubular, the head end being seamlessly connected to the tail end of the rear guide pipe 6321;

[0095] A rear separation pipe 6323 with a frustum-shaped outer contour, the head end diameter being larger than the tail end; the head end of the rear separation pipe 6323 is seamlessly connected to the tail of the rear separation pipe 6323; the tail end diameter of the rear separation pipe 6323 is smaller than the tail end diameter of the front separation pipe 6313; the tail end of the rear separation pipe 6323 is seamlessly connected to the head end of the discharge cylinder 633.

[0096] The design of the rear guide pipe 6321 enables the material to move in the direction of the rear separation pipe 6323 under the action of centrifugal force, preventing the material from accumulating in the semi-closed area formed by the interference between the end of the front separation pipe 6313 and the rear guide pipe 6321.

[0097] In this embodiment, it further includes:

[0098] A first bearing 10, sleeved on the outer sides of the rear guide pipe 6321 and the front separation pipe 6313 and fixedly connected to the outsides of the rear guide pipe 6321 and the front separation pipe 6313;

[0099] A number of first support rods 11, the head ends being connected to the outer ring of the first bearing 10 and the tail ends being fixedly connected to the inner wall of the outer shell cover;

[0100] A second bearing 12, sleeved on the outer side of the discharge cylinder 633 and fixedly connected to the outside of the discharge cylinder 633;

[0101] A number of second support rods 13, the head ends being connected to the outer ring of the second bearing 12 and the tail ends being fixedly connected to the inner wall of the outer shell cover.

[0102] The rotation of the drum is limited by the first bearing 10 and the second bearing 12 to prevent large-amplitude shaking at the tail of the drum.

[0103] In this embodiment, the head end of the rear guide pipe 6321 is located on the outer side of the tail of the front separation pipe 6313; the projection of the tail end of the front separation pipe 6313 is located inside the rear guide pipe 6321.

[0104] A cliff opening is formed between the front separation pipe 6313 and the rear guiding pipe 6321, and under the action of centrifugal force, the material can be better scattered and better mixed and contacted with the cleaning water.

[0105] In this embodiment, the outer contour of the middle part of the spiral drum 7 is frustum-shaped, its head end diameter is larger than the tail end diameter, and a number of liquid permeable holes (not shown in the figure) are provided on the spiral blade 71 of the spiral drum 7.

[0106] The frustum shape can guide the feed to move towards the head of the spiral drum 7 when the spiral drum 7 rotates, avoiding that when the feed is unstable, an excessive amount of feed is discharged through the tail of the spiral drum 7 and enters the discharge port 512, reducing the separation quality.

[0107] The liquid permeable holes can provide a flow path for the separation of another liquid from the material, realizing a faster separation of the material and the liquid. At the same time, since they are opened on the spiral blade 71 and their flow direction is opposite to the direction of the centrifugal force, the liquid permeable holes will not be subjected to a large extrusion force from the material and are thus not easily blocked.

[0108] In this embodiment, the axis of the feed pipe 8 located inside the drum is collinear with the axis of the drum;

[0109] The cleaning pipe 9 is sleeved on the outer surface of the feed pipe 8 and is coaxial with the feed pipe 8;

[0110] An inclined guiding ring 14 is provided on the feed pipe 8; the included angle between the guiding surface of the guiding ring 14 and the flow direction of the cleaning liquid flowing out of the cleaning pipe 9 is an obtuse angle; the guiding ring 14 is located at the gourd neck of the drum;

[0111] A third bearing 15 is sleeved on the outer side surface of the cleaning pipe 9, and the third bearing 15 is located inside the tail of the spiral drum 7; the third bearing 15 is connected to the tail of the spiral drum 7 through a number of third support rods 16 evenly arranged in a circumferential array.

[0112] The guiding ring 14 guides the incoming cleaning liquid to be sprayed as much as possible between the front separation pipe 6313 and the rear guiding pipe 6321; the third bearing 15 limits the rotation of the spiral drum 7 to prevent it from shaking.

[0113] The horizontal spiral discharge filtering centrifuge with a non-filter structure in this embodiment works as follows: close the outer cover and start the driver to make the outer shaft 3 and the inner shaft 4 rotate.

[0114] Feed through the feed pipe 8 and inject cleaning water through the cleaning pipe 9; after the feed impacts the end face of the inner shaft 4, it is scattered towards the spiral drum 7 and finally enters the drum, and is subjected to centrifugal force in the drum for solid-liquid separation. At the same time, the spiral drum 7 rotates and pushes the centrifugally separated material towards its tail.

[0115] After the materials are separated once in the front cylinder, when they enter the rear cylinder, they are scattered by the formed cliff and come into contact with the cleaning water for cleaning. After being separated by the rear cylinder, they finally enter the discharge cylinder 633 and fall into the discharge port 512.

[0116] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the present technical solution, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A horizontal screw discharge filtration centrifuge with a non-filter screen structure, characterized in that, Comprising: A driver; An NC differential, the input end of which is connected to the driver, and the driver drives the NC differential to rotate; A bearing housing, connected to the housing of the NC differential; An outer shaft, arranged in the bearing housing and connected to an output end of the NC differential; An inner shaft, sleeved inside the outer shaft and connected to the other output end of the NC differential; A housing cover, the head of which is connected to the bearing housing, and an enclosed space is formed inside with the bearing housing; the outer shaft and the inner shaft are located in the enclosed space; a liquid outlet is provided below the head of the housing cover, and a discharge outlet is provided below the tail of the housing cover; A drum, tubular in shape, coaxially connected to the outer shaft; the outer contour of the drum is gourd-shaped, and the opening at the head is larger than the opening at the tail; a liquid flow port is provided on the end face of the head of the drum, and the liquid flow port is directly above the liquid outlet; the tail of the drum is directly above the discharge outlet; A spiral wheel drum with mesh holes, tubular in shape, the inner side of which is coaxially connected to the inner shaft, and spiral blades are provided on the outer side; the minimum distance between the end of the spiral blade and the inner wall of the drum does not exceed 1 mm; when the inner shaft rotates, the spiral blades rotate to drive the material between the spiral wheel drum and the drum to move towards the tail of the housing cover; A feed pipe, passing through the housing cover and entering the drum; A cleaning pipe, passing through the housing cover and entering the drum, and its liquid outlet is located at the gourd neck of the drum.

2. The horizontal screw discharge filtration centrifuge with a non-filter structure according to claim 1, wherein, The housing cover includes: A front pipe, the head end of which is seamlessly connected to the end face of the bearing housing; the drum and the spiral wheel drum are both located inside the front pipe; the feed pipe and the cleaning pipe pass through the front pipe and enter the drum; A cover, seamlessly connected to the end face of the front pipe through a hinge.

3. The horizontal screw discharge filtration centrifuge with a non-filter structure according to claim 1, characterized in that, The drum includes: A connection disc, connected to the outer end of the outer shaft by screws; A connecting disc, annular in shape, coaxially arranged with the connection disc, and the inner ring is connected to the outer ring of the connection disc; a plurality of liquid flow ports are provided on the connecting disc and are evenly circumferentially arrayed around the axis of the outer shaft; A rotating cylinder, the head end of which is connected to the outer ring of the connecting disc; the rotating cylinder is gourd-shaped; a plurality of mesh holes are evenly provided on the rotating cylinder.

4. The horizontal screw discharge filtration centrifuge with a non-filter structure according to claim 3, characterized in that, The rotating cylinder includes: A front cylinder, with an outward expansion in the middle and an inward contraction at the tail; the head end face of the front cylinder is connected to the outer ring of the connecting disc, and the distance from the tail end to the axis of the outer shaft is less than the distance from the liquid flow port to the axis of the outer shaft; A rear cylinder, with an outward expansion in the middle and an inward contraction at the tail; the head end face of the rear cylinder is seamlessly connected to the tail of the front cylinder; the distance from the tail end to the axis of the outer shaft is less than the distance from the tail end of the front cylinder to the axis of the outer shaft; the liquid outlet end of the cleaning pipe is located at the connection between the front cylinder and the rear cylinder; A discharge cylinder, tubular in shape, the head end of which is seamlessly connected to the tail end of the rear cylinder.

5. The horizontal screw discharge filtering centrifuge with a non-filter structure according to claim 4, characterized in that, The front cylinder includes: A front guiding pipe, with a frustum-shaped outer contour, the head end diameter of which is smaller than the tail end; the head end of the front guiding pipe is connected to the outer ring of the connecting disc; A front centrifugal pipe, tubular in shape, the head end of which is seamlessly connected to the tail end of the front guiding pipe; A front separation pipe, with a frustum-shaped outer contour, the head end diameter of which is larger than the tail end; the head end of the front separation pipe is seamlessly connected to the tail end of the front separation pipe; the head end of the rear cylinder is seamlessly connected to the tail of the front separation pipe; the tail end diameter of the front separation pipe is smaller than the head end diameter of the front guiding pipe.

6. The horizontal screw discharge filtration centrifuge with a non-filter structure according to claim 5, characterized in that The rear cylinder includes: The rear guiding tube has a frustum-shaped outer contour, with the diameter of the head end smaller than that of the tail end; the diameter of the tail end of the rear guiding tube is smaller than the diameter of the head end of the front separating tube; the head end of the rear guiding tube is seamlessly connected to the tail of the front separating tube; The rear centrifugal tube is circular tubular, and its head end is seamlessly connected to the tail end of the rear guiding tube; The rear separating tube has a frustum-shaped outer contour, with the diameter of the head end larger than that of the tail end; the head end of the rear separating tube is seamlessly connected to the tail end of the rear separating tube; the diameter of the tail end of the rear separating tube is smaller than the diameter of the tail end of the front separating tube; the tail end of the rear separating tube is seamlessly connected to the head end of the discharge cylinder.

7. The horizontal screw discharge filtration centrifuge with a non-filter structure according to claim 6, characterized in that It further includes: The first bearing is sleeved on the outer sides of the rear guiding tube and the front separating tube and is fixedly connected to the outsides of the rear guiding tube and the front separating tube; Several first support rods, with the head end connected to the outer ring of the first bearing and the tail end fixedly connected to the inner wall of the outer shell cover; The second bearing is sleeved on the outer side of the discharge cylinder and is fixedly connected to the outside of the discharge cylinder; Several second support rods, with the head end connected to the outer ring of the second bearing and the tail end fixedly connected to the inner wall of the outer shell cover.

8. The horizontal screw discharge filtration centrifuge with a non-filter structure according to claim 6, characterized in that, The head end of the rear guiding tube is located on the outer side of the tail of the front separating tube; the projection of the tail end of the front separating tube is located inside the rear guiding tube.

9. The horizontal screw discharge filtration centrifuge with a non-filter structure according to claim 1, characterized in that The outer contour of the middle part of the spiral wheel drum is frustum-shaped, with the diameter of the head end larger than that of the tail end; several liquid permeating holes are provided on the spiral blades of the spiral wheel drum.

10. The horizontal screw discharge filtration centrifuge with a non-filter structure according to claim 1, characterized in that, The axis of the feed pipe located inside the drum is collinear with the axis of the drum; The cleaning pipe is sleeved on the outer surface of the feed pipe and is coaxial with the feed pipe; An inclined guiding ring is provided on the feed pipe; the guiding surface of the guiding ring forms an obtuse angle with the flow direction of the cleaning liquid flowing out of the cleaning pipe; the guiding ring is located at the gourd neck of the drum; The outer side of the cleaning pipe is sleeved with a third bearing, and the third bearing is located inside the tail of the spiral wheel drum; the third bearing is connected to the tail of the spiral wheel drum through several third support rods evenly arranged in a circumferential array.

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