Modularized replaceable wear-resistant lining plate cleaning roller body structure

Abstract

The utility model discloses a modularized replaceable wear-resistant lining plate cleaning roller body structure which comprises a roller body, and the roller body is composed of a feeding section, a middle section and a discharging section. A conical overflow section is arranged between the middle section and the discharging section; the inner wall face of the middle section, the inner wall face of the conical overflow section and the inner wall face of the discharging section are each provided with at least one inner lining plate set, and each inner lining plate set comprises a plurality of inner lining plates evenly distributed in the circumferential direction. And after the cylinder body runs for a long time, if one or more of the cylinder bodies are abraded, only the lining plates in the area need to be replaced, so that the downtime, the replacement period, the construction difficulty and the replacement cost are greatly reduced.

Description

Technical Field

[0001] The utility model relates to a modular replaceable wear-resistant lining plate cleaning drum structure. Background Art

[0002] The utility model relates to a cleaning drum. The existing drum body is generally manufactured by continuous welding. When the cleaning drum rotates, the internal castings, the pouring riser and the star iron continuously roll, rub and collide with each other, so as to clean the floating sand and burrs on the surface of the castings and the pouring riser. Of course, the friction and collision between the castings and the star iron will also cause wear on the drum body itself, and this wear is inevitable and cannot be solved.

[0003] Therefore, the drum body is generally made of wear-resistant steel plates; when the inner wall of the drum is worn or damaged after a period of use and needs repair, it is generally patched by welding; however, if the worn parts are large or there are many worn parts, the entire drum body needs to be replaced. Due to the large drum body, many assembly line equipment, and soundproof rooms, disassembly and assembly is not only inconvenient and difficult, but also has a long replacement cycle and a high replacement cost. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a modular replaceable wear-resistant lining plate cleaning drum body structure which is easy to replace and has low replacement cost.

[0005] The technical solution to realize the utility model is as follows

[0006] A modular replaceable wear-resistant liner cleaning drum structure comprises a drum body, wherein the drum body consists of a feed section, an intermediate section and a discharge section; a conical overflow section is provided between the intermediate section and the discharge section; at least one group of liner plates are provided on the inner wall surface of the intermediate section, the inner wall surface of the conical overflow section and the inner wall surface of the discharge section, and each group of liner plates comprises a plurality of liner plates uniformly distributed along the circumferential direction.

[0007] Pressure strips are arranged between every two inner lining boards in the same inner lining board group.

[0008] The pressure strip is evenly provided with a plurality of countersunk holes; the pressure strip is composed of a wear-resistant plate and a bottom plate.

[0009] Both sides of the mounting plate are provided with chamfers, and the pressure strip is higher than the lining plate, so that the casting can be turned over, and the chamfers can prevent the sharp corners of the pressure strip from knocking against the surface of the casting.

[0010] A plurality of inclined guide round steels are evenly distributed along the circumferential direction on the inner wall surface of the feeding section.

[0011] The inner lining plate of the middle section close to one end of the feeding section is provided with a first through hole area for falling sand, and the inner lining plate of the discharging section is provided with a second through hole area for falling star iron.

[0012] The inner lining plate is evenly provided with a plurality of expansion joints along the axial direction.

[0013] The above technical solution is adopted to add a layer of removable lining plate inside the cylinder. After the cylinder has been running for a long time, if one or more of them are worn, only the lining plate in that area needs to be replaced, which greatly reduces the downtime, replacement cycle and replacement cost. It solves the problem that customers are worried about the difficulty of replacement, repair and maintenance after wear. Moreover, customers can disassemble and assemble by themselves without using large equipment for lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the DD cross-sectional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the enlarged structure of the V surface of the utility model;

[0017] In the accompanying drawings, 1 is the drum body, 2 is the feed section, 3 is the middle section, 4 is the discharge section, 5 is the conical overflow section, 6 is the inner lining plate, 9 is the wear-resistant pressure strip, 10 is the countersunk hole, 11 is the welding bottom plate, 12 is the chamfer, 13 is the channel steel frame, 14 is the guide round steel, 15 is the first through hole area, 16 is the second through hole area, and 17 is the expansion joint. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] A modular replaceable wear-resistant liner cleaning drum structure includes a drum body 1, which is composed of a feed section 2, a middle section 3 and a discharge section 4; a conical overflow section 5 is provided between the middle section and the discharge section. Since the material is fed forward by overflow, the conical overflow section structure is provided so that the casting can be kept in the middle section for a long time; at least one group of liner plates is evenly distributed along the inner wall surface of the middle section, at least one group of liner plates is evenly distributed along the inner wall surface of the conical overflow section, and at least one group of liner plates is evenly distributed along the inner wall surface of the discharge section, and each group of liner plates includes a plurality of liner plates 6 evenly distributed along the circumferential direction. By providing the liner plates, it is convenient to replace them after local wear. The inner wall of the middle section is provided with lining plates, pressure strips, and spiral guide round steel welded on the lining plate close to the feeding section, and the lining plate with through hole area is installed on the channel steel frame, which not only ensures the strength of the cylinder but also takes into account the sand falling; the inner wall of the conical overflow section is provided with lining plates and pressure strips; the inner wall of the discharge section is provided with lining plates with through holes, pressure strips, and material-blocking round steel; the drum lining plates and orifice plates are replaceable.

[0020] A feeding roller is provided at the inlet of the feeding section, and an outlet roller is provided at the outlet of the discharging section; a first conical cylinder is provided on the outer surface of the middle section, the first conical cylinder corresponds to the first through-hole area, and a scattered sand collection chute is provided below the first conical cylinder for cooperating with the first through-hole area to collect the scattered sand; a second conical cylinder is provided on the outer surface of the discharging section, the second conical cylinder corresponds to the second through-hole area, and a star iron collection chute is provided below the second conical cylinder for cooperating with the second through-hole area to collect star iron.

[0021] According to the width of the board, the preferred length of the lining board is less than 2m, which is convenient for transportation and saves materials; Figure 1 As shown, due to the longer overall length of the middle section, the lining plate laid in front and the corresponding lining plate laid in the back are kept continuous during laying, so that the layer strips are also kept continuous during installation. The layer strips are in one line, mainly because of the overflow principle, the casting is transported forward, and the resistance is reduced. Of course, it is more beautiful to be in one line.

[0022] Preferably, each group of inner lining plates includes six inner lining plates evenly distributed along the circumferential direction. Since the weight of the lining plates needs to be considered during installation, in this embodiment, six lining plates are evenly distributed on the same circumferential plane to facilitate transportation and installation.

[0023] There are pressure strips 9 between every two liner plates in the same liner plate group. The pressure strips block the gaps between two adjacent liner plates. Another important function of the pressure strips is to enable the casting to turn over on the cylinder body when the drum rotates, thereby ensuring the cleaning effect. There are six pressure strips distributed in the circumferential direction for six liner plates, which is a moderate number. If there are fewer pressure strips, the casting will not turn over fully, and the cleaning will not be thorough, which will not achieve the design purpose. If there are more pressure strips, the frequency of casting turning over will increase, which will increase bumps and produce more defective products. When installing the liner plate, the liner plate can be spot welded to the inner wall of the cylinder first for pre-positioning, which can not only make the liner plate evenly distributed in the circumferential direction and close to the outer cylinder wall, but also share the pressure of the pressure strip bolts.

[0024] There are several countersunk holes 10 evenly distributed on the pressure strip so that the pressure strip can be installed in the cylinder; the pressure strip is composed of a bottom plate 11 and a wear-resistant plate 9 welded together. The bottom plate and the wear-resistant plate are welded together to form a pressure strip, which is convenient for drilling countersunk holes. During assembly, ensure that the bolts are placed in the countersunk holes without protruding and are not in direct contact with the castings and the star irons, ensure that the bolt heads are not worn out during long-term operation in the cylinder, and the bolt heads will not hook or hang on the castings; the bottom plate is just stuck in the gap between the two lining plates, and the gap is completely blocked by the wear-resistant plate above it, which is not only more beautiful but also enhances the sealing. The pressure strip is composed of a wear-resistant plate and a bottom plate intermittently welded. The wear-resistant plate is in direct contact with the castings and the star irons, and the bottom plate is hidden between the joints of the two lining plates. The bottom plate is installed on the channel steel frame by bolts.

[0025] Both sides of the mounting plate are provided with chamfers 13, and the pressure strip is higher than the lining plate, so that the casting can be turned over, and the chamfer can prevent the pressure strip sharp corner casting from knocking against the casting surface.

[0026] The inner wall surface of the feeding section is evenly distributed along the circumferential direction with a plurality of inclined guide round steels 14, so that the castings can be quickly transported forward at the inlet, and the collision of the inlet vibration bed with the castings when feeding at the same position can be reduced.

[0027] The first through hole area 15 with sand dropping function is arranged on the inner lining plate near one end of the feeding section of the middle section. After the casting comes in from the feeding section, the sand is separated from the casting and the star iron through the through hole area of ​​the inner lining plate. This through hole is a waist-shaped hole that can only drop fine sand, and the casting and the star iron cannot pass through. The screened sand can be returned to the sand processing system and re-molded for use, reducing the waste of system sand; the second through hole area 16 for dropping the star iron is arranged on the inner lining plate of the discharging section. The through hole is a round hole mainly for filtering the star iron to separate the star iron from the casting. The star iron enters from the drum entrance through a belt or other equipment to complete the recycling and reduce the customer's operating cost. The inner lining plates are fixed to the channel steel frame by bolts for easy installation and replacement.

[0028] The inner lining plate is evenly distributed with a plurality of expansion joints 17 along the axial direction, and the expansion joints extend along the circumference of the inner lining plate to form an annular groove. Preferably, the thickness of the expansion joints is 3 mm to prevent thermal expansion and contraction.

Claims

1. A modular replaceable wear-resistant lining plate cleaning drum body structure, characterized in that: The invention comprises a drum body, which is composed of a feed section, a middle section and a discharge section; a conical overflow section is arranged between the middle section and the discharge section; at least one group of lining plates are arranged on the inner wall surface of the middle section, the inner wall surface of the conical overflow section and the inner wall surface of the discharge section, and each group of lining plates comprises a plurality of lining plates uniformly distributed along the circumferential direction.

2. A modular replaceable wear-resistant liner cleaning drum structure according to claim 1, characterized in that: Pressure strips are arranged between every two inner lining boards in the same inner lining board group.

3. A modular replaceable wear-resistant liner cleaning drum structure according to claim 2, characterized in that: The pressure strip is evenly provided with a plurality of countersunk holes; the pressure strip is composed of a wear-resistant plate and a bottom plate.

4. A modular replaceable wear-resistant liner cleaning drum structure according to claim 2, characterized in that: Both sides of the pressure strip are provided with chamfers.

5. A modular replaceable wear-resistant liner cleaning drum structure according to claim 1, characterized in that: A plurality of inclined guide round steels are evenly distributed along the circumferential direction on the inner wall surface of the feeding section.

6. A modular replaceable wear-resistant liner cleaning drum structure according to claim 1, characterized in that: A first through hole area is arranged on the inner lining plate of the middle section close to one end of the feeding section, and a second through hole area is arranged on the inner lining plate of the discharging section.

7. A modular replaceable wear-resistant liner cleaning drum structure according to claim 1, characterized in that: The inner lining plate is evenly provided with a plurality of expansion joints along the axial direction.

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