Raw material screening equipment for nodular cast iron production

Abstract

The utility model relates to the technical field of nodular cast iron production, and discloses a raw material screening device for nodular cast iron production, which comprises an outer cylinder, a feeding pipe, a feeding pipe, a feeding pipe, a feeding pipe, a feeding pipe, a feeding pipe, a feeding pipe, a feeding pipe and a feeding pipe, and is characterized in that the outer cylinder is transversely arranged; and the first-stage screening assembly is arranged in the outer cylinder, and the first-stage screening assembly is connected with the second-stage screening assembly. A support is fixedly installed on the outer walls of the two ends of the outer cylinder, a base is fixedly installed at the bottom end of the support, the outer cylinder can be stably supported through the installed support, and a collecting box for receiving screened raw materials can be placed on the base through the installed base. According to the raw material screening equipment for nodular cast iron production, the contact face of a wedge-shaped ring and a connecting pipe is arranged to be an inclined face, then a spring is arranged, finally, reciprocating motion screening of an arc-shaped screening plate installed on an inner cylinder can be achieved under rotation of the connecting pipe, and the purpose of secondary screening is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ductile iron production, in particular to a raw material screening device for ductile iron production. Background Art

[0002] Ductile iron chips are abundant in sources, but cupola smelting must use special ductile iron pig iron with stable composition, returned iron and scrap steel, because cupola smelting is only suitable for block charges. Ductile iron chips are smelted in a cupola. On the one hand, it is difficult to add materials, and on the other hand, ductile iron chips have the disadvantages of easy oxidation, severe burning, low iron chip recovery rate, unstable chemical composition, and high consumption of spheroidizer in the cupola smelting environment.

[0003] The raw materials for ductile iron production need to be screened, but the existing raw material screening equipment for ductile iron production can only perform one-time screening, and adopts a single structure, which is also easy to cause blockage, affecting the subsequent screening effect.

[0004] Therefore, we proposed a raw material screening equipment for ductile iron production to solve the problem. Utility Model Content

[0005] The purpose of the utility model is to provide a raw material screening device for ductile iron production, which solves the problems in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a raw material screening device for ductile iron production, comprising:

[0007] The outer cylinder is arranged horizontally, the lower surface of the outer cylinder is provided with a discharge port, and the left side of the outer cylinder is connected with a feed pipe;

[0008] The first-stage screening component is arranged in the outer cylinder, and the first-stage screening component is connected with the second-stage screening component.

[0009] Preferably, brackets are fixedly installed on the outer walls of both ends of the outer cylinder, and a base is fixedly installed on the bottom end of the bracket. The installed bracket can provide a stable support for the outer cylinder, and a collection box for receiving the screened raw materials can be placed on the base.

[0010] Preferably, the first-stage screening component comprises:

[0011] The motor is fixedly mounted to the right side of the outer cylinder by screws, and the output end of the motor movably penetrates the right side of the outer cylinder and extends to be fixedly connected to the connecting shaft located in the outer cylinder;

[0012] The right side of the sieve cylinder is fixedly connected to the left end of the connecting shaft, and a sealing plate is detachably installed on the outer wall of the sieve cylinder.

[0013] Preferably, a motor seat is fixedly mounted on the lower surface of the motor, and the motor seat is fixedly mounted on the right side of the outer cylinder. The installed motor seat can enhance the stable mounting of the motor.

[0014] Preferably, a connecting tube 1 is connected to the left side of the screen cylinder, and a connecting tube 2 is slidably sleeved on the connecting tube 1. The annular groove on the outer wall of the connecting tube 2 is slidably arranged with the inner wall of the left end of the connecting tube 1, and the left end of the connecting tube 2 is connected to the lower end of the feed pipe. The sliding arrangement between the connecting tube 2 and the connecting tube 1 is for the purpose of facilitating the smooth rotation of the screen cylinder. At the same time, the setting of the feed pipe can facilitate the screened raw materials to enter the screen cylinder.

[0015] Preferably, the second-level screening component comprises:

[0016] The right end of the inner cylinder is slidably sleeved on the outer wall of the connecting shaft, and a curved screen plate is detachably mounted on the lower surface of the inner cylinder, and the curved screen plate is directly opposite to the discharge port, so that it is convenient to disassemble it later and process the raw materials inside;

[0017] A wedge ring is slidably sleeved on the annular groove on the outer wall of the second connecting pipe, and the right side of the wedge ring is in contact with the left side of the first connecting pipe;

[0018] The spring is sleeved on the outer wall of the second connecting pipe, one end of the spring is fixedly installed on the second connecting pipe, and the other end is fixedly installed on the left side of the wedge ring.

[0019] Preferably, the surfaces where the wedge ring and the connecting pipe 1 contact each other are both inclined surfaces, so that an extrusion force can be generated between the connecting pipe 1 and the wedge ring during its rotation. Since the wedge ring is slidably arranged on the connecting pipe 2, the wedge ring can move.

[0020] The utility model provides a raw material screening device for ductile iron production. The raw material screening device for ductile iron production has the following beneficial effects:

[0021] (1) The raw material screening equipment for ductile iron production can make the connecting shaft drive the screen drum to rotate through the motor, and finally realize the rolling screening of the raw materials in the screen drum, so as to avoid the raw materials from piling up and affecting the screening efficiency.

[0022] (2) The raw material screening equipment for ductile iron production can realize the purpose of secondary screening by setting the contact surface between the wedge ring and the connecting pipe as an inclined surface, and then using a set spring, and finally the arc-shaped screen plate installed on the inner tube can be reciprocated and screened when the connecting pipe rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is a schematic diagram of the overall three-dimensional structure of a raw material screening device for ductile iron production according to the utility model;

[0024] Figure 2 This is a schematic diagram of a half-section structure of an outer cylinder in a raw material screening device for ductile iron production according to the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of a connecting pipe in a raw material screening device for ductile iron production according to the utility model;

[0026] Figure 4 This utility model is a raw material screening equipment for ductile iron production Figure 3 Schematic diagram of the local explosion structure.

[0027] In the figure: 1 outer cylinder, 2 bracket, 3 base, 4 motor seat, 5 feed pipe, 6 first stage screening component, 61 motor, 62 connecting shaft, 63 screen cylinder, 64 sealing plate, 65 connecting pipe 1, 66 connecting pipe 2, 7 second stage screening component, 71 inner cylinder, 72 arc screen plate, 73 wedge ring, 74 spring. DETAILED DESCRIPTION

[0028] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0029] Example 1

[0030] The preferred embodiment of the raw material screening equipment for ductile iron production provided by the utility model is as follows Figures 1 to 4 As shown:

[0031] A raw material screening device for ductile iron production, comprising:

[0032] The outer cylinder 1 is arranged horizontally, and a discharge port is arranged on the lower surface of the outer cylinder 1. A feed pipe 5 is arranged on the left side of the outer cylinder 1. Brackets 2 are fixedly installed on the outer walls of both ends of the outer cylinder 1, and a base 3 is fixedly installed on the bottom end of the bracket 2. The bracket 2 can play a role of stable support for the outer cylinder 1, and a collection box for receiving the screened raw materials can be placed on the base through the installed base 3;

[0033] The first-stage screening component 6 is arranged in the outer tube 1 , and the first-stage screening component 6 is connected to the second-stage screening component 7 .

[0034] The first stage screening component 6 includes:

[0035] The motor 61 is fixedly mounted on the right side of the outer cylinder 1 by screws, and the output end of the motor 61 movably penetrates the right side of the outer cylinder 1 and extends to be fixedly connected with the connecting shaft 62 located in the outer cylinder 1;

[0036] The right side of the sieve drum 63 is fixedly connected to the left end of the connecting shaft 62, and a sealing plate 64 is detachably installed on the outer wall of the sieve drum 63. A connecting pipe 1 65 is connected to the left side of the sieve drum 63, and a connecting pipe 2 66 is slidably sleeved on the connecting pipe 1 65. The annular groove on the outer wall of the connecting pipe 2 66 is slidably arranged with the inner wall of the left end of the connecting pipe 1 65, and the left end of the connecting pipe 2 66 is connected to the lower end of the feed pipe 5. The sliding arrangement between the connecting pipe 2 66 and the connecting pipe 1 65 is for the purpose of facilitating the smooth rotation of the sieve drum 63. At the same time, under the arrangement of the feed pipe 5, the screened raw materials can be easily entered into the sieve drum 63.

[0037] In the specific implementation process, the connecting shaft 62 can be rotated by starting the motor 61, and then the screen drum 63 can be rotated, so that the raw materials in the screen drum 63 can be rolled and screened, which can avoid the raw materials from piling up and affecting the screening efficiency.

[0038] In this embodiment, a motor base 4 is fixedly mounted on the lower surface of the motor 61 , and the motor base 4 is fixedly mounted on the right side of the outer cylinder 1 . The motor base 4 is installed to enhance the stability of the motor 61 .

[0039] Example 2

[0040] On the basis of embodiment 1, the second-level screening component 7 comprises:

[0041] The right end of the inner cylinder 71 is slidably sleeved on the outer wall of the connecting shaft 62. The lower surface of the inner cylinder 71 is detachably mounted with an arc-shaped sieve plate 72, which is directly opposite to the discharge port, so that it is easy to disassemble it later and process the raw materials inside;

[0042] The wedge ring 73 is slidably sleeved on the annular groove on the outer wall of the second connecting pipe 66. The right side of the wedge ring 73 is in contact with the left side of the first connecting pipe 65. The contacting surfaces of the wedge ring 73 and the first connecting pipe 65 are both inclined surfaces.

[0043] The spring 74 is sleeved on the outer wall of the second connecting pipe 66 , one end of the spring 74 is fixedly installed on the second connecting pipe 66 , and the other end of the spring 74 is fixedly installed on the left side of the wedge ring 73 .

[0044] In the specific implementation process, since the surfaces where the wedge ring 73 and the connecting tube 1 65 contact each other are both inclined, an extrusion force can be generated between the connecting tube 1 65 and the wedge ring 73 during the rotation process. Since the wedge ring 73 is slidably set on the connecting tube 2 66 and the spring 74 is set, the wedge ring 73 can drive the inner cylinder 71 to move back and forth to achieve the purpose of secondary screening.

[0045] Working principle: First, the raw materials to be screened are passed through the feed pipe 5, the connecting pipe 2 66, and the connecting pipe 1 65 into the screen drum 63. At this time, the motor 61 is started to rotate the connecting shaft 62. The screen drum 63 can rotate under the rotation of the connecting shaft 62 to achieve the tumbling screening of the raw materials, which can avoid the accumulation of raw materials and also avoid clogging. The screened raw materials will enter the arc screen plate 72. The connecting pipe 1 65 can rotate under the rotation of the screen drum 63. Since there is a Due to the sliding arrangement, the connecting pipe 2 66 will not be affected in any way. Since the contact surface between the connecting pipe 1 65 and the wedge ring 73 is an inclined surface, the wedge ring 73 can be repeatedly moved with the cooperation of the spring 74. Finally, the inner cylinder 71 can drive the arc sieve plate 72 to move repeatedly to achieve secondary screening. At the same time, the blockage of the arc sieve plate 72 can also be avoided. After the screening is completed, the staff can disassemble the arc sieve plate 72 and the sealing plate 64 at the bottom of the outer cylinder 1 to process the remaining raw materials inside.

[0046] The above description is only an illustrative specific implementation method of the utility model, and is not intended to limit the scope of the utility model. Any equivalent changes and modifications made by any technician in this field without departing from the concept and principle of the utility model should fall within the scope of protection of the utility model. It should also be noted that the various components of the utility model are not limited to the above-mentioned overall application. The various technical features described in the specification of the utility model can be selected for use alone or in combination according to actual needs. Therefore, the utility model should naturally cover other combinations and specific applications related to the utility model points of this case.

Claims

1. A raw material screening device for ductile iron production, characterized in that: include: The outer cylinder (1) is arranged horizontally, the lower surface of the outer cylinder (1) is provided with a discharge port, and the left side surface of the outer cylinder (1) is connected to a feed pipe (5); The first-stage screening component (6) is arranged in the outer cylinder (1), and the first-stage screening component (6) is connected to the second-stage screening component (7).

2. The raw material screening equipment for ductile iron production according to claim 1, characterized in that: Brackets (2) are fixedly mounted on the outer walls of both ends of the outer cylinder (1), and a base (3) is fixedly mounted on the bottom end of the bracket (2).

3. The raw material screening equipment for ductile iron production according to claim 1, characterized in that: The first stage screening component (6) comprises: The motor (61) is fixedly mounted on the right side of the outer cylinder (1) by means of screws, and the output end of the motor (61) movably penetrates the right side of the outer cylinder (1) and extends to be fixedly connected to the connecting shaft (62) located in the outer cylinder (1); The right side of the sieve cylinder (63) is fixedly connected to the left end of the connecting shaft (62), and a sealing plate (64) is detachably mounted on the outer wall of the sieve cylinder (63).

4. The raw material screening equipment for ductile iron production according to claim 3 is characterized in that: A motor seat (4) is fixedly mounted on the lower surface of the motor (61), and the motor seat (4) is fixedly mounted on the right side of the outer cylinder (1).

5. The raw material screening equipment for ductile iron production according to claim 3, characterized in that: The left side surface of the screen drum (63) is connected to a connecting pipe 1 (65), and the connecting pipe 1 (65) is slidably sleeved with a connecting pipe 2 (66). An annular groove provided on the outer wall of the connecting pipe 2 (66) is slidably arranged with the inner wall of the left end of the connecting pipe 1 (65), and the left end of the connecting pipe 2 (66) is connected to the lower end of the feed pipe (5).

6. The raw material screening equipment for ductile iron production according to claim 1, characterized in that: The second-stage screening component (7) comprises: The right end of the inner cylinder (71) is slidably sleeved on the outer wall of the connecting shaft (62), and a curved screen plate (72) is detachably mounted on the lower surface of the inner cylinder (71), and the curved screen plate (72) is directly opposite to the discharge port; A wedge ring (73) is slidably sleeved on the annular groove on the outer wall of the second connecting pipe (66), and the right side of the wedge ring (73) is in contact with the left side of the first connecting pipe (65); The spring (74) is sleeved on the outer wall of the second connecting pipe (66), one end of the spring (74) is fixedly mounted on the second connecting pipe (66), and the other end is fixedly mounted on the left side of the wedge ring (73).

7. The raw material screening equipment for ductile iron production according to claim 6, characterized in that: The surfaces where the wedge ring (73) and the connecting pipe (65) contact each other are both inclined surfaces.

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