Combined screen of dehydrator

Abstract

The utility model relates to the technical field of dehydrators, in particular to a dehydrator combined screen which comprises a fixing frame and a screen body, the fixing frame comprises a fixing ring and vertical plates, an annular side plate is fixedly arranged on the outer side wall of the fixing ring, and a plurality of vertical plates are annularly distributed at the upper end and the lower end of the annular side plate; the screen body comprises a plurality of screen pieces, and the screen pieces in the same shape are spliced to form the screen body. The screen mesh piece comprises a screen mesh frame and a wear-resistant screen mesh, the wear-resistant screen mesh is fixedly arranged in the screen mesh frame, a plurality of square convex blocks are arranged on one side of the screen mesh frame in a staggered mode, and a plurality of square grooves are formed in the other side of the screen mesh frame in a staggered mode; a reinforcing assembly is arranged at the joint of every two adjacent screen pieces. According to the utility model, the staggered joint splicing type screen structure is adopted, so that the screen is convenient to maintain, and the workload of maintaining the screen is small; and the screen of the dehydrator can be replaced conveniently, and the screen can be replaced by detaching a single screen piece.

Description

Technical Field

[0001] The utility model relates to the technical field of dehydrators, in particular to a combined screen for dehydrators. Background Art

[0002] At present, large-scale fuming furnaces have adopted slag granulation treatment methods in the field of non-ferrous lead smelting. The main equipment includes buffer towers, dehydrators, belts and silos. The core equipment is a screen plate dehydrator. Dehydrators are mostly used in the field of steelmaking. During the use of the dehydrator, the screen used for water-slag filtering and separation adopts a rectangular overall structure. The screen is fixed by a pressure plate and bolts. There are many bolts used to fix the screen. The slag produced in the steelmaking field has a small density and a small specific gravity. The slag-water mixture causes little wear on the screen, so the failure rate of the screen is low and the replacement frequency is low.

[0003] In the prior art, when a dehydrator is used for water-slag separation in the lead smelting field, due to the high density and large amount of slag produced by the lead smelting fuming furnace, the slag-water mixture causes great wear on the screen, which can easily lead to wear of the screen, a short service life of the screen, and a high failure rate of the screen, so the screen needs to be replaced frequently; however, in the process of replacing the rectangular screen, all adjacent screens need to be removed, and due to the large number of bolts fixing the screen, the screen is relatively cumbersome to disassemble, the cycle of replacing the screen is long, and there is a problem of difficulty in replacing the screen, and the workload of repairing the screen is large, which affects the production efficiency of the kiln. Summary of the invention

[0004] The utility model provides a combined dehydrator screen to solve the problems of difficulty in replacing the dehydrator screen and large amount of maintenance in the prior art. The screen adopts a staggered splicing screen structure, which is convenient for repairing the screen by splicing two adjacent screen pieces together, and the workload of repairing the screen is small; at the same time, it is also convenient to replace the dehydrator screen, and the screen replacement operation can be realized by disassembling a single screen piece.

[0005] In order to achieve the above purpose, the technical solution of the utility model is: a dehydrator combined screen, including a fixing frame and a screen body, the fixing frame includes a fixing ring and a vertical plate, the outer side wall of the fixing ring is fixedly provided with an annular side plate, the upper and lower ends of the annular side plate are annularly arranged with a plurality of the vertical plates, and the vertical plates are vertically arranged on the annular side plate. The fixing frame is used to fix the screen body to the inside of the dehydrator box.

[0006] The screen body is arranged on the outside of the fixed frame, and the screen body includes a plurality of screen sheets, and a plurality of screen sheets of exactly the same shape are spliced ​​to form the screen body; the screen sheet includes a screen frame and a wear-resistant wire mesh, and the wear-resistant wire mesh is fixedly arranged inside the screen frame, and a plurality of square protrusions are staggeredly arranged on one side of the screen frame, and a plurality of square grooves are staggeredly opened on the other side of the screen frame, and the square grooves correspond to the square protrusions; the connection between two adjacent screen sheets is provided with a reinforcement component. Through the cooperation of the square protrusions and square grooves on the two adjacent screen frames, the effect of splicing a plurality of screen sheets to form the screen body is achieved, and the reinforcement component plays a role in reinforcing and fixing the screen sheet.

[0007] Further, the fixing ring is fixedly arranged at the middle position of the annular side plate, and the length of the screen frame is the same as the length of the vertical plate, so as to fix the screen frame to the vertical plate.

[0008] Furthermore, fastening bolts are provided on the square protrusions on both sides of the screen frame, and the screen frame is fixed to the outer side of the vertical plate by the fastening bolts, so that the screen sheet is fixed to the outer side of the vertical plate by the fastening bolts.

[0009] Furthermore, the reinforcement assembly includes a reinforcement plate, which is connected to the screen frame via the fastening bolts. The reinforcement plate is located outside the screen frame, and the screen sheet is further fixed by the reinforcement plate.

[0010] Furthermore, the reinforcement plate is connected to the two adjacent screen frames, and the length of the reinforcement plate is the same as the length of the screen frame. The reinforcement plate has a stabilizing and reinforcing effect on the two adjacent screen sheets.

[0011] Through the above technical solution, the beneficial effects of the utility model are:

[0012] The utility model has a simple structure and good use effect. It adopts a staggered splicing screen structure to replace the original rectangular screen. By splicing two adjacent screen pieces together, the correlation between adjacent screen pieces is reduced, and the number of fastening bolts is reduced, which is convenient for repairing the screen pieces and reduces the workload of repairing the screen. It is also convenient for replacing the dehydrator screen. If the screen piece needs to be replaced, the screen replacement operation can be realized by disassembling the faulty screen piece.

[0013] The utility model can install two screen bodies into the box body of the dehydrator through the fixing frame, and achieve the effect of splicing a plurality of screen sheets to form the screen body through the cooperation of the square protrusions and the square grooves on the two adjacent screen frames, so as to achieve the effect of facilitating the disassembly, replacement and maintenance of the screen sheets; and by installing a reinforcing plate at the connection between the two adjacent screen sheets, the two adjacent screen sheets can be further stabilized and strengthened. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a combined screen of a dehydrator of the utility model (excluding the wear-resistant wire mesh and the reinforcement plate);

[0015] Figure 2 It is a partial structural schematic diagram of a combined screen of a dehydrator of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the screen mesh of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the fixing frame of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the utility model in use state.

[0019] The numbers in the attached drawings are: 1 is a fixing ring, 2 is an annular side plate, 3 is a vertical plate, 4 is a screen frame, 5 is a wear-resistant wire mesh, 6 is a square groove, 7 is a square protrusion, 8 is a fastening bolt, and 9 is a reinforcement plate. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0021] like Figure 1 to Figure 5 As shown, a dehydrator combined screen includes a fixed frame and a screen body, the fixed frame includes a fixed ring 1 and a vertical plate 3, the outer wall of the fixed ring 1 is fixedly provided with an annular side plate 2, and the upper and lower ends of the annular side plate 2 are annularly arranged with multiple vertical plates 3, and the vertical plates 3 are vertically arranged on the annular side plate 2. In this embodiment, the fixed frame is installed in the box body of the dehydrator, so as to achieve the effect of installing two screen bodies inside the dehydrator box body, and two screen bodies can be installed on the outside of the fixed frame, wherein multiple vertical plates 3 are installed at intervals to the top and bottom of the annular side plate 2, and the vertical plates 3 at the top and bottom of the arc-shaped side plate 2 correspond to each other up and down.

[0022] The screen body is arranged on the outside of the fixed frame, and the screen body includes a plurality of screen sheets, and a plurality of screen sheets of exactly the same shape are spliced ​​to form the screen body; the screen sheet includes a screen frame 4 and a wear-resistant wire mesh 5, and the wear-resistant wire mesh 5 is fixedly arranged inside the screen frame 4, and a plurality of square protrusions 7 are staggeredly arranged on one side of the screen frame 4, and a plurality of square grooves 6 are staggeredly opened on the other side of the screen frame 4, and the square grooves 6 correspond to the square protrusions 7; the connection between two adjacent screen sheets is provided with a reinforcement component. In this embodiment, three square grooves 6 and square protrusions 7 are respectively arranged on both sides of each screen frame 4, and when two screen sheets are combined and spliced, the direction protrusion 7 on one side of the screen frame 4 of one screen sheet is located in the square groove 6 on one side of the screen frame 4 of the other screen sheet.

[0023] The fixing ring 1 is fixedly arranged at the middle position of the annular side plate 2, and the length of the screen frame 4 is the same as that of the vertical plate 3, so as to ensure that the screen frame 4 is firmly mounted on the vertical plate 3, and each vertical plate 3 is respectively connected to two screen frames 4.

[0024] The square protrusions 7 on both sides of the screen frame 4 are provided with fastening bolts 8. The screen frame 4 is fixed to the outer side of the vertical plate 3 by the fastening bolts 8. The fastening bolts 8 fix the screen frame 4. The fastening bolts 8 are threadedly connected to the screen frame 4 and the vertical plate.

[0025] The reinforcement assembly includes a reinforcement plate 9, which is connected to the screen frame 4 via the fastening bolts 8. The reinforcement plate 9 is located on the outside of the screen frame 4 and is fixed to the outside of the screen frame 4 via the fastening bolts 8. The two adjacent screen frames 4 are pressed and fixed using the reinforcement plate 9.

[0026] The reinforcement plate 9 is connected to the two adjacent screen frames 4 , and the length of the reinforcement plate 9 is the same as that of the screen frames 4 .

[0027] When in use, the two screen bodies are installed on the outside of the fixing frame, and the fixing frame is installed inside the dehydrator box to achieve the effect of installing the screen bodies inside the dehydrator box.

[0028] During normal production, hot slag is discharged from the fuming furnace and flushed to the buffer tower through water. The slag-water mixture is then separated from the water by two screen bodies inside the dehydrator. The slag is then transported to the waste slag bin by belts for storage. The screens are assembled by fastening bolts 8 and square protrusions 7 to meet the working requirements of slag-water separation.

[0029] When the screen has been used for a long time and some of the screen pieces are severely worn or malfunction and need to be replaced, it is only necessary to disassemble the severely worn or malfunctioning screen pieces, remove the fastening bolts 8 on the square protrusions 7 on both sides of the screen frame 4 of the screen piece, remove the reinforcement plate 9 from the connection between the two adjacent screen frames 4, and separate the square protrusions 7 and the vertical plate 3. Then the screen frame 4 can be removed for replacement, and the new screen frame 4 and wear-resistant wire mesh 5 prepared in advance can be replaced as a whole. At the same time, the old screen frame 4 can also be reused.

[0030] The embodiments described above are only preferred embodiments of the utility model and do not limit the scope of implementation of the utility model. Therefore, all equivalent changes or modifications made according to the technical solutions described in the patent scope of the utility model should be included in the scope of the patent application of the utility model.

Claims

1. A dehydrator combined screen, characterized in that: It comprises a fixing frame and a screen body, the fixing frame comprising a fixing ring (1) and a vertical plate (3), an annular side plate (2) is fixedly provided on the outer side wall of the fixing ring (1), a plurality of the vertical plates (3) are arranged annularly at both upper and lower ends of the annular side plate (2), and the vertical plates (3) are vertically arranged on the annular side plate (2); The screen body is arranged on the outside of the fixed frame, the screen body comprises a plurality of screen sheets, and a plurality of screen sheets of exactly the same shape are spliced ​​to form the screen body; the screen sheets comprise a screen frame (4) and a wear-resistant wire mesh (5), the wear-resistant wire mesh (5) is fixedly arranged inside the screen frame (4), a plurality of square protrusions (7) are staggeredly arranged on one side of the screen frame (4), and a plurality of square grooves (6) are staggeredly opened on the other side of the screen frame (4), the square grooves (6) corresponding to the square protrusions (7); and a reinforcement component is arranged at the connection between two adjacent screen sheets.

2. A dehydrator combined screen according to claim 1, characterized in that: The fixing ring (1) is fixedly arranged at the middle position of the annular side plate (2), and the length of the screen frame (4) is the same as that of the vertical plate (3).

3. A dehydrator combined screen according to claim 1, characterized in that: The square protrusions (7) on both sides of the screen frame (4) are provided with fastening bolts (8), and the screen frame (4) is fixed to the outer side of the vertical plate (3) by means of the fastening bolts (8).

4. A dehydrator combined screen according to claim 3, characterized in that: The reinforcement assembly comprises a reinforcement plate (9), the reinforcement plate (9) being connected to the screen frame (4) via the fastening bolts (8), and the reinforcement plate (9) being located outside the screen frame (4).

5. A dehydrator combined screen according to claim 4, characterized in that: The reinforcement plate (9) is connected to the two adjacent screen frames (4), and the length of the reinforcement plate (9) is the same as the length of the screen frame (4).

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