Inoculating agent baking and taking device

Abstract

The invention relates to the technical field of inoculants, in particular to an inoculant baking and taking device. The device comprises a storage tank, the storage tank comprises an equal-diameter section and a reducing section which are sequentially communicated from top to bottom, a feeding port is formed in the top of the equal-diameter section, a discharging port is formed in the bottom of the reducing section, and the tail end of the discharging port is communicated with an inlet of conveying equipment; a grinding and screening structure and a first high-temperature waste gas pipeline are sequentially arranged in the equal-diameter section from top to bottom, and the first high-temperature waste gas pipeline is distributed in an S shape; a second high-temperature waste gas pipeline which is spirally distributed from top to bottom is arranged in the reducing section; steam dispersing holes are formed in the side walls of the equal-diameter section and the reducing section, and steam dispersing screens are arranged at outlets of the steam dispersing holes. High-temperature waste gas is introduced into the first high-temperature waste gas pipeline and the second high-temperature waste gas pipeline, drying treatment of the inoculant is completed through waste heat of the high-temperature waste gas, and the technical problems that in the prior art, an inoculant drying device is high in energy consumption, and fire disasters and electric shock are likely to be caused are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of inoculants, and in particular to an inoculant baking and material taking device. Background Art

[0002] Inoculant is an important additive used to improve metal structure and performance during casting. The inoculant needs to be dried before use to keep it dry to ensure its performance during use. At present, the inoculant drying device is intermittent drying, and there will be problems such as large heat loss and uneven heating during the process of discharging and adding inoculant.

[0003] In this regard, the patent document with the authorization announcement number CN209726750U discloses a device for drying inoculants, which includes a cylindrical main body, a feed port at the top of the main body, and a discharge port at the bottom. The feed port and the discharge port are both connected to the inside of the main body. A drying component and a loading component are arranged inside the main body. The drying component includes a plurality of electric heating tubes, which are arranged around the inner wall of the main body. The loading component includes a rotating shaft and a material channel. The rotating shaft is vertically arranged at the center of the main body and passes through the feed port and the discharge port. The material channel is arranged around the side of the rotating shaft and is arranged in a spiral shape. A driving device for driving the rotating shaft is provided at the bottom of the main body. When the device is used, the inoculant is placed on the material channel, and the rotation of the rotating shaft is used to drive the inoculant to enter the main body from the feed port, and the inoculant is discharged from the discharge port after being dried by the drying component, so as to realize continuous drying of the inoculant.

[0004] Although the above device can realize continuous drying treatment of the inoculant, the following problems still exist during its use: 1. The energy consumption of the electric heating tube is relatively high. For situations where long-term continuous heating is required, its cost is greatly increased; 2. The electric heating tube is prone to high temperature and excessive current during use, which can easily cause fire and electric shock, posing a major safety hazard. Summary of the invention

[0005] The invention provides an inoculant baking and material taking device to solve the technical problems of high energy consumption and easy fire and electric shock in the prior art inoculant drying devices.

[0006] In order to solve the above problems, the inoculant baking and material taking device provided by the present invention adopts the following technical solutions:

[0007] A device for baking and taking out an inoculant comprises a storage tank, wherein the storage tank comprises a constant diameter section and a reduced diameter section which are connected in sequence from top to bottom, wherein the top of the constant diameter section is provided with a feed port, and the bottom of the reduced diameter section is provided with a discharge port, wherein the end of the discharge port is connected with an inlet of a conveying device; wherein a grinding and screening structure and a first high-temperature exhaust gas pipeline are arranged in sequence from top to bottom inside the constant diameter section, and the first high-temperature exhaust gas pipeline is distributed in an S shape; wherein a second high-temperature exhaust gas pipeline which is distributed in a spiral shape from top to bottom is arranged inside the reduced diameter section; wherein steam dispersion holes are provided on the side walls of the constant diameter section and the reduced diameter section, and a steam dispersion screen is provided at the outlet of the steam dispersion holes.

[0008] The beneficial effects of the inoculant baking and material taking device provided by the present invention are:

[0009] 1. By setting up the first high-temperature exhaust gas pipeline with S-shaped distribution and the second high-temperature exhaust gas pipeline with spiral distribution in the equal-diameter section and the reduced-diameter section of the storage tank respectively, the waste heat of the high-temperature exhaust gas is used to dry the inoculant, which can not only effectively bake the inoculant and bake out the moisture contained in it, but also realize the utilization of high-temperature exhaust gas, which is in line with the concept of environmental protection;

[0010] 2. By opening steam diffusion holes on the side walls of the equal diameter section and the reduced diameter section, and setting a steam diffusion screen at the outlet of the steam diffusion hole, the moisture contained in the inoculant can be discharged from the steam diffusion hole under high temperature baking, and the steam diffusion screen can prevent the inoculant material from spilling outside;

[0011] 3. By arranging a grinding and screening structure in the equal diameter section and above the first high-temperature exhaust gas pipe, the water-absorbed agglomerated inoculant can be ground into a smaller volume through the grinding and screening structure, which is helpful for subsequent baking;

[0012] 4. By setting up conveying equipment at the discharge port, the baked inoculant can be delivered to the production site in time, realizing the inoculant being dried, transported and used at the same time, making the drying and use process of the inoculant more compact.

[0013] Through the above arrangement, the present invention effectively solves the technical problems of high energy consumption and easy fire and electric shock in the prior art of the inoculant drying device.

[0014] Furthermore, vibrators are installed on the outer side wall of the equal diameter section and the outer side wall of the reduced diameter section.

[0015] Beneficial effect: By installing vibrators on the side walls of the equal diameter section and the reduced diameter section, the vibrators can drive the side walls of the equal diameter section and the reduced diameter section to vibrate, thereby driving the inoculant inside the equal diameter section and the reduced diameter section to vibrate, ultimately improving the baking effect.

[0016] Furthermore, the steam diffusion holes and the vibrators are evenly spaced in the circumferential direction of the equal-diameter section and the reduced-diameter section.

[0017] Furthermore, the longitudinal section of the steam diffusion hole is triangular, and the cross section thereof is fan-shaped.

[0018] Furthermore, the grinding and screening structure includes a rotating shaft rotatably installed on the top of the equal-diameter section and extending into the interior of the equal-diameter section, the upper end of the rotating shaft is connected to the driving mechanism, the bottom of the rotating shaft is installed with a horizontally arranged grinding piece, and a first screen is arranged below the grinding piece to cooperate with the grinding piece.

[0019] Furthermore, a second screen is arranged above the second high-temperature exhaust gas pipe in the reduced diameter section.

[0020] Furthermore, the second screen is arranged obliquely from top to bottom in the reduced diameter section.

[0021] Furthermore, the conveying equipment is a tube chain conveyor.

[0022] Furthermore, the equal-diameter section is a cylindrical structure, and the reduced-diameter section is a conical structure.

[0023] Furthermore, it also includes a transparent observation window, which is arranged on the side wall of the equal-diameter section or the reduced-diameter section. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0025] Figure 1 This is a schematic diagram of the internal structure of the inoculant baking and material taking device provided by the present invention;

[0026] Figure 2 A top view of the inoculant baking and material taking device provided by the present invention;

[0027] Figure 3 This is a top view of the first high-temperature exhaust gas pipeline provided by the present invention.

[0028] Description of reference numerals:

[0029] 1. Equal diameter section; 2. Reduced diameter section; 3. Feed inlet; 4. Discharge outlet; 5. First high-temperature exhaust gas pipeline; 6. Second high-temperature exhaust gas pipeline; 7. Steam dispersion hole; 8. Steam dispersion screen; 9. Vibrator; 10. Rotating shaft; 11. Grinding part; 12. First screen; 13. Second screen; 14. Tube chain conveyor; 15. Branch section. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0031] It should be noted that the main concept of the inoculant baking and material taking device provided by the present invention is: by respectively arranging an S-shaped densely distributed first high-temperature exhaust gas pipe 5 and a spirally distributed second high-temperature exhaust gas pipe 6 in the equal-diameter section 1 and the reduced-diameter section 2 of the storage tank, the inoculant is dried by utilizing the waste heat of the high-temperature exhaust gas introduced into the high-temperature exhaust gas pipe, thereby realizing the rational utilization of high-temperature exhaust gas resources and being able to realize the baking treatment of the inoculant, which is energy-saving and environmentally friendly; by arranging a grinding and screening structure in the equal-diameter section 1 and above the first high-temperature exhaust gas pipe 5, the agglomerated inoculant can be ground by the grinding and screening structure so that it is ground into a smaller volume, which is helpful for subsequent baking; by opening a steam dispersion hole 7 on the side walls of the equal-diameter section 1 and the reduced-diameter section 2, and arranging a steam dispersion screen 8 in the steam dispersion hole 7, while ensuring that the moisture contained in the inoculant is discharged outward from the steam dispersion hole 7 under high-temperature baking, the inoculant can be effectively prevented from spilling to the outside.

[0032] After introducing the basic principle of the present invention, various non-limiting embodiments of the present invention are described in detail below. The number of any element in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.

[0033] Inoculant, also known as inoculant in English, is a small amount of substance added to liquid metal during the solidification process of cast iron. Its main function is to promote nucleation and inhibit growth, thereby achieving the purpose of grain refinement. In the field of cast iron, the process of adding additives to cast iron is called inoculation; while the process of adding additives to non-ferrous alloys is called modification. The core of inoculation is to affect the nucleation process, promote the liberation of grains, and thus improve the microstructure and mechanical properties of cast iron.

[0034] The reason why the inoculant can play a huge role in the cast iron process is mainly due to its following characteristics: First, the inoculant can significantly promote the graphitization process in cast iron, reduce the tendency of white cast iron, and make the graphite morphology finer and evenly distributed; second, the inoculant can improve the morphology and distribution of graphite. Through inoculation treatment, the graphite morphology in cast iron is transformed from coarse and irregular D-type or E-type to fine and uniform A-type graphite, thereby significantly improving the mechanical properties and processing properties of cast iron; third, the inoculant can increase the number of eutectic clusters in cast iron, refine the matrix structure, and make the microstructure of cast iron more uniform and dense; finally, the inoculant can also improve the fluidity of cast iron, reduce the shrinkage and residual stress of castings, and improve the dimensional accuracy and surface quality of castings.

[0035] During storage, the inoculant may absorb moisture from the environment. When the inoculant containing moisture is added to the high-temperature molten metal, the moisture will react chemically with the metal elements in the molten metal to generate metal oxides and hydrogen. The primary hydrogen will dissolve in the molten metal and precipitate during the subsequent solidification process, thereby forming defects such as subcutaneous pores inside the casting. The presence of these pores will seriously affect the mechanical properties and sealing properties of the casting; when the inoculant containing moisture is added to the high-temperature molten metal, the evaporation of moisture and the chemical reaction between water and the molten metal will consume part of the energy of the molten metal, causing the temperature of the molten metal to drop. This temperature drop may affect the full mixing reaction of the inoculant and the molten metal, thereby reducing the inoculation effect; in addition, when the inoculant contains moisture when added to the molten metal, it may cause a flying explosion due to the temperature difference, which will not only affect the use effect of the inoculant, but also may cause safety hazards to production equipment and operators.

[0036] It can be seen that it is very necessary to dry the inoculant before use. At present, the continuous drying treatment device of the inoculant usually uses an electric heating tube to dry the inoculant in the device. Although this method can remove the moisture in the inoculant, it converts electrical energy into thermal energy for heating to achieve the drying of the inoculant. During the continuous drying process, a large amount of electrical energy will be consumed, resulting in a significant increase in the cost of the enterprise; in addition, the electric heating tube will produce high temperature and excessive current during the heating process, which is easy to cause fire and motor, and there is a great safety hazard.

[0037] Therefore, there is an urgent need to provide a low-energy-consuming, safe and reliable baking and material-removing device to bake the inoculant.

[0038] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0039] Embodiment 1 of the inoculant baking and material taking device provided by the present invention:

[0040] like Figures 1 to 3 As shown, the inoculant baking and material taking device includes a storage tank, a feed port 3 is provided on the top of the storage tank, a discharge port 4 is provided on the bottom, a grinding and screening structure, a first high-temperature exhaust gas pipeline 5 and a second high-temperature exhaust gas pipeline 6 are arranged in sequence from top to bottom in the storage tank, a steam diffusion hole 7 is provided on the side wall of the storage tank, and a vibrator 9 is installed, and the steam diffusion hole and the vibrator 9 are arranged at intervals.

[0041] About the storage tank. The storage tank includes an equal diameter section 1 and a reduced diameter section 2 which are connected in sequence from top to bottom, wherein the top of the equal diameter section 1 has a feed port 3, the bottom of the reduced diameter section 2 has a discharge port 4, and the end of the discharge port 4 is connected to the inlet of the conveying equipment. A grinding and screening structure and a first high-temperature exhaust gas pipe 5 are arranged in sequence from top to bottom in the equal diameter section 1. The first high-temperature exhaust gas pipe 5 is distributed in an S shape in the equal diameter section 1, so that the first high-temperature exhaust gas pipe 5 is a pipe including a plurality of interconnected branch sections 15, and each branch section 15 is also distributed in an S shape in the longitudinal plane in which its extension direction is located, so that the first high-temperature exhaust gas pipe 5 is densely distributed in the equal diameter section 1; a second high-temperature exhaust gas pipe 6 which is spirally distributed from top to bottom is arranged inside the reduced diameter section 2.

[0042] Specifically, the grinding and screening structure includes a rotating shaft 10 which is rotatably mounted in the middle of the top of the equal-diameter section 1 and vertically extends into the equal-diameter section 1. The upper end of the rotating shaft 10 is connected to a driving mechanism (not shown in the figure) mounted on the top of the equal-diameter section 1. Two grinding members 11 which are arranged at intervals and extend horizontally are mounted at the bottom thereof. A first screen 12 which cooperates with the grinding members 11 is disposed below the grinding members 11. The grinding and screening structure can grind and screen large pieces of inoculants, so that small-volume inoculants directly pass through the first screen 12 and fall under the action of gravity, and large-volume inoculants are dispersed into small pieces under the grinding action of the grinding members 11 and the first screen 12, and then pass through the first screen 12 and fall under the action of gravity.

[0043] Specifically, the equal-diameter section 1 is a cylindrical structure, and the reduced-diameter section 2 is a conical structure that is larger at the top and smaller at the bottom.

[0044] In order to timely discharge the steam generated during the baking process, a plurality of steam dispersion holes 7 are provided on the side wall of the equal diameter section 1. The plurality of steam dispersion holes 7 are divided into eight groups and are evenly spaced in the circumferential direction of the equal diameter section 1. Each group includes a plurality of steam dispersion holes 7 spaced apart from each other. A plurality of steam dispersion holes 7 are also provided on the side wall of the reduced diameter section 2. The plurality of steam dispersion holes 7 are divided into eight groups and are evenly spaced apart in the circumferential direction of the reduced diameter section 2. Each group includes a plurality of steam dispersion holes 7 spaced apart from each other. A steam dispersion screen 8 is provided at the outlet of the steam dispersion holes 7. The presence of the steam dispersion screen 8 can not only discharge the moisture contained in the inoculant from the steam dispersion holes 7 under high temperature baking, but also prevent the inoculant material from spilling to the outside through the steam dispersion screen 8.

[0045] The longitudinal sections of the steam diffusion holes 7 are all triangular, and the cross sections are fan-shaped.

[0046] In order to ensure the uniformity of baking, a plurality of vibrators 9 are installed on the side walls of the equal diameter section 1 and the reduced diameter section 2. The vibrators 9 and the steam diffusion holes 7 are evenly spaced in the circumferential direction of the equal diameter section 1 and the reduced diameter section 2.

[0047] In order to further avoid the input of unbaked and agglomerated inoculant into the conveying device, a second screen 13 is provided above the second high-temperature exhaust gas pipe 6 in the reduced diameter section 2, and the second screen 13 is arranged obliquely from top to bottom.

[0048] In addition, a transparent observation window and an inspection port are provided on the side wall of the equal diameter section 1 to observe the baking conditions in the storage tank and to facilitate timely inspection of the first high-temperature exhaust gas pipe 5, the second high-temperature exhaust gas pipe 6, the grinding and screening mechanism and the second screen 13.

[0049] It should be noted that the conveying equipment is a tube chain conveyor 14; any group of steam dispersion holes 7 can also be arranged in the circumference of the equal-diameter section 1 and the reduced-diameter section 2 to meet actual baking requirements.

[0050] The working principle of the inoculant baking and material taking device provided by the present invention is: when the inoculant is needed, the inoculant is first fed into the storage tank through the feed port 3. After the inoculant enters the storage tank, small pieces of the inoculant fall directly from the first screen 12 under the action of gravity, and are successively baked by the high-temperature exhaust gas in the first high-temperature exhaust gas pipeline 5, screened by the second screen 13, and baked by the high-temperature exhaust gas in the second high-temperature exhaust gas pipeline 6, and finally enter the tube chain conveyor 14, and are transported to the production station by the tube chain conveyor 14; large pieces of the inoculant remain on the first screen 12, and are ground into small pieces by the rotating grinding piece 11, so that they can fall from the first screen 12 under the action of gravity, and then are successively baked by the high-temperature exhaust gas in the first high-temperature exhaust gas pipeline 5, screened by the second screen 13, and baked by the high-temperature exhaust gas in the second high-temperature exhaust gas pipeline 6, and finally enter the tube chain conveyor 14, and are transported to the production station by the tube chain conveyor 14;

[0051] During the baking process of the inoculant, the situation in the storage tank can be observed through the transparent observation window. When an abnormal situation occurs, the baking and conveying process can be suspended in time and repaired through the inspection port.

[0052] Embodiment 2 of the inoculant baking and material taking device provided by the present invention:

[0053] The main difference between it and Example 1 is:

[0054] In Example 1, the conveying equipment is a tube chain conveyor.

[0055] In this embodiment, the conveying equipment is an auger conveyor.

[0056] Embodiment 3 of the inoculant baking and material taking device provided by the present invention:

[0057] The main difference between it and Example 1 is:

[0058] In Example 1, the transparent observation window and the inspection port are opened on the side wall of the equal diameter section.

[0059] In this embodiment, the transparent observation window and the inspection port are provided on the side wall of the reduced diameter section, or both the equal diameter section and the reduced diameter section are provided with the transparent observation window and the inspection port.

[0060] Embodiment 4 of the inoculant baking and material taking device provided by the present invention:

[0061] The main difference between it and Example 1 is:

[0062] In Example 1, the equal-diameter section is a cylindrical structure, and the reduced-diameter section is a conical structure that is larger at the top and smaller at the bottom.

[0063] In this embodiment, the equal-diameter section is a rectangular parallelepiped structure, and the reduced-diameter section is a quadrangular pyramid.

[0064] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0065] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A device for baking and taking out inoculant, characterized in that: It includes a storage tank, which includes an equal-diameter section and a reduced-diameter section connected in sequence from top to bottom, the equal-diameter section has a feed port at the top, the reduced-diameter section has a discharge port at the bottom, and the end of the discharge port is connected to the inlet of the conveying equipment; the equal-diameter section is provided with a grinding and screening structure and a first high-temperature exhaust gas pipeline in sequence from top to bottom, and the first high-temperature exhaust gas pipeline is distributed in an S shape; the reduced-diameter section is provided with a second high-temperature exhaust gas pipeline distributed in a spiral shape from top to bottom; steam dispersion holes are provided on the side walls of the equal-diameter section and the reduced-diameter section, and a steam dispersion screen is provided at the outlet of the steam dispersion hole.

2. The inoculant baking and material taking device according to claim 1, characterized in that: Vibrators are installed on the outer side wall of the equal diameter section and the outer side wall of the reduced diameter section.

3. The inoculant baking and material taking device according to claim 2, characterized in that: The steam diffusion holes and the vibrators are evenly spaced in the circumferential direction of the equal-diameter section and the reduced-diameter section.

4. The inoculant baking and material taking device according to any one of claims 1 to 3, characterized in that: The longitudinal section of the steam diffusion hole is triangular, and the cross section is fan-shaped.

5. The inoculant baking and material taking device according to any one of claims 1 to 3, characterized in that: The grinding and screening structure includes a rotating shaft rotatably mounted on the top of the equal-diameter section and extending toward the inside of the equal-diameter section, the upper end of the rotating shaft is connected to the driving mechanism, a horizontally arranged grinding piece is mounted on the bottom of the rotating shaft, and a first screen mesh is arranged below the grinding piece to cooperate with the grinding piece.

6. The inoculant baking and material taking device according to any one of claims 1 to 3, characterized in that: A second screen is arranged above the second high-temperature exhaust gas pipe in the reduced diameter section.

7. The inoculant baking and material taking device according to claim 6, characterized in that: The second screen is arranged obliquely from top to bottom in the diameter-reducing section.

8. The inoculant baking and material taking device according to any one of claims 1 to 3, characterized in that: The conveying equipment is a tube chain conveyor.

9. The inoculant baking and material taking device according to any one of claims 1 to 3, characterized in that: The equal-diameter section is a cylindrical structure, and the reduced-diameter section is a conical structure.

10. The inoculant baking and material taking device according to any one of claims 1 to 3, characterized in that: It also includes a transparent observation window, which is arranged on the side wall of the equal-diameter section or the reduced-diameter section.

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