Screen frame assembly of single-screw wringing machine

Abstract

The screen frame assembly comprises a main body section and connecting sections arranged at the two ends of the main body section, drain holes are formed in the main body section, an end ring groove is formed in the position, close to the inner surface, of the end face of the main body section, and the ends of the connecting sections are inserted into the end ring groove. First connecting flanges are fixed to the connecting ends of the main body section and the connecting section, the main body section is composed of a plurality of sub-sections, each sub-section is formed by oppositely splicing two axisymmetric semi-ring structures, middle ring grooves and middle flanges are arranged at the positions, close to the inner surfaces, of the end faces of the front and back adjacent sub-sections correspondingly, and the middle ring grooves and the middle flanges are connected in an inserted mode; and second connecting flanges are fixed at the end parts of the front and back adjacent sub-sections. According to the screen frame assembly of the single-screw wringing machine, the overhaul efficiency can be greatly improved, and the overhaul cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of squeezing equipment, in particular to a screen frame component of a single-screw squeezing machine. Background Art

[0002] A squeezer is a device used to reduce the water content in materials. After the solid-liquid mixed thin material containing a large amount of free water enters the single screw squeezer through the feed hopper, the material is compressed in volume under the action of the screw shaft, so that the water in the material is separated out through the screen frame with drainage holes, and the water content of the solids gradually decreases under the action of continuous compression, and finally discharged out of the machine under the conveying action of the screw. As the core component of the screw squeezer, the screen frame must be regularly maintained or even replaced. In the single screw squeezer of the prior art, the connection between the screen frame and the screw squeezer is relatively complicated, which affects the efficiency of inspection and maintenance. Utility Model Content

[0003] The utility model aims to provide a screen frame assembly of a single screw squeezer to solve the problems existing in the prior art.

[0004] The purpose of the utility model is achieved as follows: a screen frame assembly of a single screw squeezer, comprising a main body section and a connecting section arranged at both ends of the main body section, a drainage hole is arranged on the main body section, an end ring groove is arranged at the end surface of the main body section near the inner surface, the end of the connecting section is inserted into the end ring groove, the connecting ends of the main body section and the connecting section are both fixed with a first connecting flange, the main body section is composed of a plurality of sub-segments, the sub-segments are formed by two axisymmetric semi-ring structures, the end surfaces of the front and rear adjacent sub-segments are respectively provided with an intermediate ring groove and an intermediate flange at the positions near the inner surface, the intermediate ring groove and the intermediate flange are plugged, and the ends of the front and rear adjacent sub-segments are both fixed with a second connecting flange. The screen frame assembly of the single screw squeezer of the utility model, when installed, first plug and fix the connecting section on the side wall of the main box of the squeezer, then install the screw shaft, then plug and connect the sub-segments of the main body and lock them through the second connecting flange through the connecting piece to form two semi-ring main cages that can be assembled, and then respectively assemble from both sides of the screw shaft into a cylindrical whole and lock it, and finally fix it through the first connecting flange. During maintenance, the main body can be removed separately when the spiral shaft is disassembled, and only some sub-segments can be replaced as needed, saving costs. In summary, the screen frame assembly of the single spiral squeezer of the utility model can greatly improve maintenance efficiency and reduce maintenance costs.

[0005] As a further improvement of the utility model, the sub-segments adopt a variable diameter structure with a larger front portion and a smaller rear portion, so as to improve the squeezing effect.

[0006] As a further improvement of the utility model, the diameter of the drainage holes of the sub-segments closer to the rear side is smaller, thereby continuously improving the extrusion rate of the material and reducing the water content of the material.

[0007] As a further improvement of the utility model, annular reinforcing ribs are distributed on the sub-segments to improve the structural strength.

[0008] As a further improvement of the present invention, the inner surfaces of the main section and the connecting section have a smooth transition to prevent the material from getting stuck at the dead corner where the main section and the connecting section are connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is an exploded schematic diagram of the screen frame assembly of the single screw squeezer of the utility model.

[0010] Figure 2 It is a schematic diagram of a subsection of the screen frame assembly of the single screw squeezer of the utility model.

[0011] Figure 3 for Figure 2 Left view of .

[0012] Figure 4 It is a schematic diagram of a single screw squeezer equipped with the screen frame assembly of the utility model.

[0013] Among them, 1 is a connecting section, 2 is an end ring groove, 3 is a first connecting flange, 4 is a sub-section, 4 is a semi-ring structure, 5 is an intermediate ring groove, 6 is an intermediate flange, 7 is a second connecting flange, and 8 is an annular reinforcement rib. DETAILED DESCRIPTION

[0014] like Figure 1-4 The screen frame assembly of the single screw squeezer shown includes a main body section and a connecting section 1 arranged at both ends of the main body section. A drainage hole is provided on the main body section. An end ring groove 2 is provided at the end face of the main body section near the inner surface, and the end of the connecting section 1 is inserted into the end ring groove 2. The connecting ends of the main body section and the connecting section 1 are both fixed with a first connecting flange 3. The main body section is composed of a plurality of sub-segments 4, and each sub-segment 4 is composed of two axially symmetrical semi-ring structures 4A. The end faces of the front and rear adjacent sub-segments 4 are respectively provided with an intermediate ring groove 5 and an intermediate flange 6 near the inner surface, and the intermediate ring groove 5 and the intermediate flange 6 are plugged in, and the ends of the front and rear adjacent sub-segments 4 are both fixed with a second connecting flange 7.

[0015] The sub-segment 4 adopts a variable diameter structure with a large front and a small back, so that the assembled main segment also has a variable diameter structure with a large front and a small back, which improves the squeezing effect. The closer the sub-segment 4 is to the rear side, the smaller the diameter of the drainage hole is, which continuously improves the extrusion rate of the material and reduces the water content of the material. Annular reinforcement ribs 8 are distributed on the sub-segment 4 to improve the structural strength. The inner surface of the main segment and the connecting segment 1 has a smooth transition (in this embodiment, in order to achieve a smooth transition, the inner surface of the connecting end of the connecting segment 1 located at the rear side and the main segment is chamfered) to prevent the material from getting stuck at the dead corner where the main segment and the connecting segment 1 are connected.

[0016] When installing the screen frame assembly of the single screw squeezer of this embodiment, the connecting section 1 is first plugged and fixed on the side wall of the main box of the squeezer, and then the screw shaft is installed. Then, the sub-segments 4 of the main body are plugged and locked through the second connecting flange 7 through the connecting piece to form two semi-annular main cages that can be assembled. Then, they are assembled into a cylindrical whole from both sides of the screw shaft and locked, and finally fixed through the first connecting flange 3. When inspecting, the main body can be removed separately when the screw shaft is disassembled, and only some sub-segments 4 can be replaced as needed to save costs.

[0017] The present utility model is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present utility model, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model.

Claims

1. A screen frame assembly for a single screw squeezer, characterized in that: It includes a main body section and connecting sections arranged at both ends of the main body section, the main body section is provided with a drainage hole, the end face of the main body section is provided with an end ring groove near the inner surface, the end of the connecting section is inserted into the end ring groove, the connecting ends of the main body section and the connecting section are both fixed with a first connecting flange, the main body section is composed of a plurality of sub-segments, and the sub-segments are formed by two axially symmetrical semi-ring structures being spliced ​​together, the end faces of the front and rear adjacent sub-segments are respectively provided with an intermediate ring groove and an intermediate flange near the inner surface, the intermediate ring groove and the intermediate flange are plugged in, and the ends of the front and rear adjacent sub-segments are both fixed with a second connecting flange.

2. The screen frame assembly of the single screw squeezer according to claim 1, characterized in that: The sub-section adopts a variable diameter structure with a larger front and a smaller rear.

3. The screen frame assembly of the single screw squeezer according to claim 2, characterized in that: The drainage holes of the sub-segments closer to the rear side have smaller diameters.

4. The screen frame assembly of the single screw squeezer according to claim 1, characterized in that: Annular reinforcement ribs are distributed on the sub-segments.

5. The screen frame assembly of the single screw squeezer according to any one of claims 1 to 4, characterized in that: The inner surfaces of the main body section and the connecting section transition smoothly.

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