Magnesium adding equipment for producing nodular cast iron pipe

Abstract

The utility model relates to the technical field of magnesium adding in the nodular cast iron pipe production process, in particular to magnesium adding equipment for producing a nodular cast iron pipe, which comprises a magnesium gun and a magnesium adding device, and the magnesium gun comprises a gun body and a reaction chamber arranged at the lower end of the gun body and provided with a downward opening. Penetrating holes are formed in the side walls of the left side and the right side of the reaction chamber, mounting rods are arranged in the two penetrating holes in a penetrating mode, the magnesium adding device comprises a containing groove, a magnesium ingot is placed in the containing groove, and mounting holes which penetrate through the magnesium ingot in the left-right direction and are matched with the mounting rods are formed in the magnesium ingot. When the magnesium adding equipment for producing the nodular cast iron pipe is used, the structure is simple, operation is convenient, workers are prevented from making contact with magnesium ingots, meanwhile, a plurality of magnesium ingots can be connected at a time, and efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnesium addition in the production process of ductile iron pipes, in particular to a magnesium addition device for producing ductile iron pipes. Background Technique

[0002] Ductile iron pipes refer to pipes cast by high-speed centrifugation of a ductile iron pipe casting machine after adding a nodulizer to molten iron above No. 18. During the nodulization of molten iron, the molten iron is placed in a ladle, and a magnesium gun is arranged on the cover of the ladle, and a magnesium ingot is arranged on the magnesium gun. By the downward movement of the cover, the magnesium gun connected to the cover can be driven to move downward and finally contact the molten iron in the ladle to add magnesium to the molten iron. However, in the prior art, pressure magnesium addition equipment is usually used for nodulization. At present, the installation method of the magnesium ingot used for pressure magnesium addition nodulization is usually to hold the magnesium ingot by hand and then fix it to the bottom of the reaction chamber of the magnesium gun by bundling. It is difficult for one person to complete it independently and requires two people to cooperate. In addition, it is very easy to burn hands during the installation process, and the installation efficiency is low, affecting the operation time. Content of the Utility Model

[0003] The utility model provides a magnesium addition device for producing ductile iron pipes to solve the technical problem of difficult connection and low efficiency between the magnesium ingot and the magnesium gun in the prior art.

[0004] To solve the above problems, a magnesium addition device for producing ductile iron pipes provided by the utility model adopts the following technical scheme:

[0005] A magnesium addition device for producing ductile iron pipes includes a magnesium gun and a magnesium addition device. The magnesium gun includes a gun body and a reaction chamber provided at the lower end of the gun body with an opening facing downward. Through holes are opened on the side walls of the left and right sides of the reaction chamber, and mounting rods are inserted through the two through holes. The magnesium addition device includes a storage tank in which a magnesium ingot is placed. An installation hole is opened in the magnesium ingot, which penetrates through the magnesium ingot in the left-right direction and is adapted to the mounting rod.

[0006] The beneficial effects are as follows: When the magnesium addition device for producing ductile iron pipes of the utility model is in use, first place the magnesium ingot in the storage tank, then set the reaction chamber of the magnesium gun corresponding to the storage tank, and then lower the magnesium gun to the height where the through hole corresponds to the installation hole. At this time, the mounting rod is sequentially inserted through the through hole on the left side, the installation hole on the magnesium ingot, and the through hole on the right side to connect the magnesium ingot to the magnesium gun. When the magnesium addition device for producing ductile iron pipes of the utility model is in use, the structure is simple, the operation is convenient, it avoids the contact between the staff and the magnesium ingot, and at the same time, multiple magnesium ingots can be connected at one time, improving the efficiency.

[0007] Furthermore, the magnesium addition device further includes a fixing frame, and the storage tank is arranged on the fixing frame so as to be liftable in the up-down direction.

[0008] Beneficial effects: Facilitate adjusting the distance between the axis of the perforation and the axis of the mounting hole.

[0009] Further, at least two telescopic rods are provided on the upper end surface of the fixing frame, and the telescopic ends of the telescopic rods are connected to the bottom surface of the containing groove; an airbag is also provided on the fixing frame, the airbag is connected to the bottom surface of the containing groove, and an inflation pipe and a deflation pipe are connected to the airbag to control the inflation or deflation of the airbag.

[0010] Beneficial effects: The lifting speed driven by the airbag is controllable and slow, improving the stability of the lifting of the containing groove and preventing the magnesium ingots from tipping over.

[0011] Further, an inflation foot pedal is provided on the inflation pipe; a deflation foot pedal is provided on the deflation pipe.

[0012] Beneficial effects: The staff can control the lifting of the containing groove driven by the airbag only by stepping on the corresponding pedal, and the operation is simple, convenient and fast.

[0013] Further, the end of the inflation pipe away from the airbag is also connected with a conversion joint for connecting with an air pressure wind pipe.

[0014] Beneficial effects: Facilitate realizing the automatic inflation and deflation of the airbag, reducing the labor force of the staff and improving the control accuracy.

[0015] Further, four universal wheels are also provided at the lower end of the fixing frame.

[0016] Beneficial effects: Facilitate moving to different positions for use.

[0017] Further, a plurality of clamping plates are arranged at intervals in the left-right direction in the containing groove, and one magnesium ingot is placed between any two adjacent clamping plates.

[0018] Beneficial effects: Prevent the magnesium ingots from tipping over.

[0019] Further, a heat-resistant and heat-insulating plate is also provided on the upper part of the gun body in the reaction chamber.

[0020] Beneficial effects: Reduce the amount of slag sticking to the upper surface of the magnesium gun. Description of the Drawings

[0021] By reading the following detailed description with reference to the drawings, the above and other objects, features and advantages of the exemplary embodiments of the present utility model will become easily understandable. In the drawings, several embodiments of the present utility model are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0022] Figure 1 is a schematic structural diagram of a magnesium adding device for producing ductile iron pipes of the present utility model;

[0023] Figure 2Cross-sectional view of the magnesium gun of the present utility model;

[0024] Figure 3 Cross-sectional view of the magnesium addition device of the present utility model.

[0025] Explanation of the reference numerals in the drawings:

[0026] 1. Gun body; 2. Reaction chamber; 3. Installation rod; 4. Holding tank; 5. Magnesium ingot; 6. Installation hole; 7. Fixed bracket; 8. Telescopic rod; 9. Airbag; 10. Inflation pipe; 11. Exhaust pipe; 12. Inflation pedal; 13. Exhaust pedal; 14. Adapter; 15. Universal wheel; 16. Clamping plate; 17. Heat-resistant and heat-insulating plate; 18. Lifting hole. Detailed implementation manners

[0027] Next, in combination with the drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Those skilled in the art should know that the following described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present utility model.

[0028] The quantity of any element in the drawings is for illustration rather than limitation, and any naming is only for distinction and does not have any limiting meaning.

[0029] Next, referring to several representative embodiments of the present utility model, the principles and spirits of the present utility model will be elaborated in detail.

[0030] Embodiment 1 of a magnesium addition device for producing ductile iron pipes provided by the present utility model:

[0031] As Figures 1 to 3 shown, a magnesium addition device for producing ductile iron pipes of the present utility model includes a magnesium gun and a magnesium addition device. An installation hole 6 is provided on the magnesium ingot 5.

[0032] The magnesium gun includes a gun body 1, a heat-resistant and heat-insulating plate 17, and a reaction chamber 2. A lifting hole 18 is provided at the upper end of the gun body 1, and the lifting hole 18 is used to be connected to an electric hoist to drive the lifting and movement of the magnesium gun. The reaction chamber 2 is provided at the lower end of the magnesium gun and opens downward. Through holes are opened on the side walls on both the left and right sides of the reaction chamber 2, and an installation rod 3 is passed through between the two through holes. The installation rod 3 is adapted to the installation hole 6 on the magnesium ingot 5 to facilitate the installation of the magnesium ingot 5 in the reaction chamber 2.

[0033] To prevent excessive slag adhesion on the surface of the electric hoist due to the high temperature generated during the use of the magnesium ingot 5, a heat-resistant and heat-insulating plate 17 is also provided on the upper part of the gun body 1 above the reaction chamber 2.

[0034] The magnesium adding device includes a fixed frame 7, a telescopic rod 8, an airbag 9, and a holding tank 4. Four universal wheels 15 are provided at the lower end of the fixed frame 7 to facilitate moving the fixed frame 7 to the use position.

[0035] The holding tank 4 is arranged above the fixed frame 7. A plurality of clamping plates 16 are arranged at intervals in the left-right direction along the inner edge of the holding tank 4. A magnesium ingot 5 is placed between any two adjacent clamping plates 16.

[0036] There are two telescopic rods 8, and the two telescopic rods 8 are symmetrically arranged on the fixed frame 7 in the left-right direction. The fixed end of the telescopic rod 8 is connected to the fixed frame 7, and the telescopic end of the telescopic rod 8 is connected to the bottom of the holding tank 4.

[0037] The airbag 9 is arranged between the two telescopic rods 8 and can expand or contract in the up-down direction. The lower end of the airbag 9 is connected with an inflation pipe 10 and a deflation pipe 11 to control the inflation or deflation of the airbag 9. An inflation foot pedal 12 is provided on the inflation pipe 10; a deflation foot pedal 13 is provided on the deflation pipe 11. The end of the inflation pipe 10 far from the airbag 9 is also connected with a conversion joint 14 for connecting with an air pressure wind pipe.

[0038] When the magnesium adding device for producing ductile iron pipes of the present utility model is in use, first place the magnesium ingot 5 in the holding tank 4, then set the reaction chamber 2 of the magnesium gun corresponding to the holding tank 4, and then lower the magnesium gun to the set height through a hoist. At the same time, adjust the airbag 9 to finely adjust the height of the perforation axis and the axis of the mounting hole 6. At this time, pass the mounting rod 3 through the left perforation, the mounting hole 6 on the magnesium ingot 5, and the right perforation in sequence to connect the magnesium ingot 5 to the magnesium gun.

[0039] When the magnesium adding device for producing ductile iron pipes of the present utility model is in use, it has a simple structure and is convenient to operate, avoiding contact between workers and magnesium ingots. At the same time, multiple magnesium ingots can be connected at one time, improving efficiency.

[0040] Embodiment 2 of the magnesium adding device for producing ductile iron pipes provided by the present utility model:

[0041] The main difference from Embodiment 1 is that in Embodiment 1, at least two telescopic rods are provided on the upper end surface of the fixed frame, and the telescopic end of the telescopic rod is connected to the bottom surface of the holding tank; an airbag is also provided on the fixed frame, and the airbag is connected to the bottom surface of the holding tank. An inflation pipe and a deflation pipe are connected to the airbag to control the inflation or deflation of the airbag.

[0042] In this embodiment, a scissor lift is arranged on the upper end surface of the fixed frame, and the holding tank is connected to the lifting end of the scissor lift.

[0043] Embodiment 3 of the magnesium adding device for producing ductile iron pipes provided by the present utility model:

[0044] The main difference from Embodiment 1 is that: in Embodiment 1, an inflation foot pedal is provided on the inflation tube; a deflation foot pedal is provided on the deflation tube.

[0045] In this embodiment, the inflation foot pedal and the deflation foot pedal are not provided.

[0046] Based on the above description of this specification, those skilled in the art can also understand the following terms used, such as the terms indicating orientation or positional relationship, such as "upper", "lower", "left", "right", etc., are based on the orientation or positional relationship shown in the drawings of this specification. It is only for the purpose of facilitating the description of the solution of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in the specific orientation. Therefore, the above terms of orientation or positional relationship cannot be understood or interpreted as a limitation to the solution of the present invention.

[0047] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to an equivalent embodiment of equivalent changes within the scope of the technical solution of the present invention by using the above-disclosed methods and technical contents. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

[0048] In addition, in the description of this specification, the meaning of "a plurality" is at least two, such as two, three or more, etc., unless otherwise specifically defined.

Claims

1. A magnesium addition device for producing ductile iron pipes, characterized in that, It includes a magnesium gun and a magnesium adding device. The magnesium gun includes a gun body and a reaction chamber provided at the lower end of the gun body with an opening facing downward. Through holes are formed in the side walls on the left and right sides of the reaction chamber, and mounting rods are inserted into the two through holes. The magnesium adding device includes a storage tank in which magnesium ingots are placed, and mounting holes are formed in the magnesium ingots, penetrating the magnesium ingots in the left-right direction and adapted to the mounting rods.

2. The magnesium addition device for producing ductile iron pipes according to claim 1, characterized in that, The magnesium adding device further includes a fixing frame, and the storage tank is arranged on the fixing frame so as to be liftable in the up-down direction.

3. The magnesium adding equipment for producing ductile iron pipes according to claim 2, characterized in that, At least two telescopic rods are provided on the upper end surface of the fixing frame, and the telescopic ends of the telescopic rods are connected to the bottom surface of the storage tank; an airbag is also provided on the fixing frame, the airbag is connected to the bottom surface of the storage tank, and an inflation pipe and a deflation pipe are connected to the airbag to control the inflation or deflation of the airbag.

4. The magnesium addition device for producing ductile iron pipes according to claim 3, characterized in that, An inflation foot pedal is provided on the inflation pipe; a deflation foot pedal is provided on the deflation pipe.

5. The magnesium addition device for producing ductile iron pipes according to claim 3, characterized in that, The end of the inflation pipe away from the airbag is further connected with a conversion joint for connecting with an air pressure wind pipe.

6. The magnesium adding device for producing ductile iron pipes according to claim 2, characterized in that, Four universal wheels are further provided at the lower end of the fixing frame.

7. A magnesium addition device for producing ductile iron pipes according to any one of claims 1-6, characterized in that, A plurality of clamping plates are arranged at intervals in the left-right direction in the storage tank, and one magnesium ingot is placed between any two adjacent clamping plates.

8. A magnesium adding device for producing ductile iron pipes according to any one of claims 1-6, characterized in that, A heat-resistant and heat-insulating plate is further provided on the upper part of the gun body above the reaction chamber.

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