CN212792869U - Mixing furnace and molding sand production line - Google Patents

Abstract

The utility model discloses a mixing furnace, which belongs to the technical field of molding sand production and can realize the back-and-forth uniform mixing of precoated sand, thereby improving the mixing efficiency of the precoated sand in the mixing process and further being beneficial to the high-efficiency operation of the whole production line; a plurality of bulges are arranged between the stirring claw and the inner surface of the furnace body, and gaps are reserved between a rotating body formed by a space swept by the stirring claw in the rotating process and the bulges; the plurality of bulges are uniformly arranged on the inner surface of the furnace body.

Description

Mixing furnace and molding sand production line

Technical Field

The utility model belongs to the technical field of the molding sand production, especially, relate to a mixing furnace and molding sand production line.

Background

The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.

The technological process of precoated sand is to mix powdered thermosetting phenolic resin with raw sand mechanically and cure the mixture while heating. Then, the method is developed to use thermoplastic phenolic resin, latent curing agent (urotropine) and lubricant to prepare precoated sand through a certain coating process, when the precoated sand is heated, the resin coated on the surface of sand is melted, and the melted resin is quickly converted from a linear structure into a non-melted body structure under the action of methylene decomposed from the urotropine, so that the precoated sand is cured and molded.

The sand for the precoated sand mold of the cast product needs to be added with auxiliary materials such as a binder, an accelerant and the like in the raw sand to meet performance indexes such as strength and the like, and the sand and the auxiliary materials need to be fully mixed in the process of adding the auxiliary materials. The sand mixing mode usually adopted is intermittent sand mixing, sand and auxiliary materials are poured into a container together, a stirring shaft is driven by a motor to rotate, the mixture is stirred, and stirring is completed after a certain time.

The utility model discloses the people discovery, traditional roller mill is based on the roller mill to grab and shovel board clockwise drives the sand and stirs along the bucket wall, but roller mill in-process tectorial membrane sand is marching towards machine pivoted same direction basically, and this kind of mode causes the unable even tectorial membrane of making a round trip of tectorial membrane sand, causes intensity low, and the tectorial membrane sand is also difficult to break up.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, in order to realize the high-efficient operation of whole production system, the utility model provides a mixing furnace and molding sand production line can realize the even stirring of making a round trip to the tectorial membrane sand to the mixing efficiency of tectorial membrane sand at mixing in-process that improves, and then is favorable to the high-efficient operation of whole production line.

In order to achieve the above purpose, the present invention is realized by the following technical solution:

in a first aspect, the utility model provides a mixing furnace, which comprises a furnace body with a circular cross section, wherein a cavity is arranged in the furnace body, a stirring claw is arranged in the furnace body, and the stirring claw is connected with a rotary power source; a plurality of bulges are arranged between the stirring claw and the inner surface of the furnace body, and gaps are reserved between a rotating body formed by a space swept by the stirring claw in the rotating process and the bulges; the plurality of bulges are uniformly arranged on the inner surface of the furnace body.

As a further technical scheme, the plurality of bulges are all positioned on the same horizontal plane.

As a further technical solution, at least two of the plurality of protrusions are located on different horizontal planes.

As a further technical scheme, the bulges are plate-shaped, and each bulge inclines relative to the bottom surface of the furnace body.

As a further technical scheme, each bulge is provided with a tip, and the tip faces to the central axis of the furnace body.

On the other hand, the utility model also provides a molding sand production line, include as the first aspect a mixing furnace.

Above-mentioned the utility model discloses an embodiment's beneficial effect as follows:

1) the utility model discloses in, through setting up the arch at the internal surface of furnace for tectorial membrane sand receives the resistance when the column point is rotated to in-process mulling, forms the trend of rolling from top to bottom, makes tectorial membrane sand mulling more even, so that tectorial membrane sand takes place the reaction with other materials.

2) The utility model discloses in, the arch has multiple overall arrangement to adapt to multiple production conditions.

3) The utility model discloses in, every the arch all have most advanced, when the mulling, the bellied inboard that a large amount of molding sand gathers can be avoided to the most advanced, and then reduce the molding sand to bellied wearing and tearing.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

Figure 1 is a schematic cross-sectional view of the present invention according to one or more embodiments,

fig. 2 is a schematic vertical cross-section of the present invention according to one or more embodiments.

In the figure, the device comprises a furnace body 1, a furnace body 2, a motor 3, a rotating roller 4, a stirring claw 5, a bulge 6 and a base.

In the figure: the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the illustration is for illustrative purposes only.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

for convenience of description, the words "up" and "down" in the present invention shall only be used to indicate the correspondence of the upper, lower, left and right directions of the drawings themselves, and not to limit the structure, but merely to facilitate the description of the present invention and to simplify the description, and shall not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and shall not be construed as limiting the present invention.

Term interpretation section: the terms "mounting", "connecting", "fixing" and the like in the present invention should be understood in a broad sense, for example, they may be fixed, detachable or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Not enough to prior art existence, in order to realize in whole production system hydrate inhibitor transport degree and hydrate risk degree distribution phase-match, the utility model provides an underwater production system flows for guarantee magnetism target hydrate inhibitor transport system and method, realizes that the target of hydrate inhibitor transports and controllable release, ensures the accurate high-efficient prevention and cure of hydrate.

It should be noted that the molding sand and the coated sand in the following examples are referred to as coated molding sand.

Example 1

In a typical embodiment of the present invention, as shown in fig. 1, the present embodiment discloses a mixing furnace, which comprises a furnace body 1 with a circular cross section, a cavity is arranged in the furnace body 1, a stirring claw 4 is arranged in the furnace body 1, and the stirring claw 4 is connected with a rotary power source; a plurality of bulges 5 are arranged between the stirring claw 4 and the inner surface of the furnace body 1, and gaps are reserved between a rotating body formed by a space swept by the stirring claw 4 in the rotating process and the bulges 5; the plurality of protrusions 5 are uniformly provided on the inner surface of the furnace body 1.

More specifically, the furnace body 1 in this embodiment includes a cylindrical outer wall and a bottom surface connected to the bottom side of the outer wall; the cavity in the furnace body 1 is a cylindrical cavity, and the stirring claws 4 can stir the precoated sand in the furnace body 1; a plurality of stirring claws 4 are arranged and are connected with the rotating roller 3, and in order to fix the rotating roller 3, a mounting seat is connected above the furnace body 1; the rotating roller 3 is connected with the mounting seat through a bearing.

In this embodiment, four protrusions 5 are provided, and the four protrusions 5 are all located on the same horizontal plane.

The rotating roller 3 is connected with a power source, and specifically, the motor 2 is adopted as the power source in the embodiment; when motor 2 drives stirring claw 4 through rotatory roller 3 and rotates, rotatory roller 3 drives the tectorial membrane sand in the furnace body 1 and is centrifugal motion around 1 axis of furnace body to, the tectorial membrane sand has the trend of pressing close to 1 inner wall of furnace body and the inner wall of furnace body 1 is connected with arch 5, and arch 5 can block the motion of tectorial membrane sand, makes the tectorial membrane sand have the trend of downstream.

In more embodiments, at least two of the four protrusions 5 are located at different levels; this case corresponds to having two layers of stirring claws 4.

It can be understood that, in a more detailed usage scenario, the mixing furnace further comprises a base 6 and a sand inlet hopper, wherein the base 6 is connected below the furnace body 1, and the sand inlet hopper is connected above the furnace body 1; it will be appreciated that the base 6 is the foundation on which the mixer furnace is supported, the mixer furnace being mounted on the base 6 by bolts; an opening is formed in the top side of the mixing furnace, and the sand inlet hopper is mounted in the opening in the top side of the mixing furnace; the sand inlet hopper can be directly communicated with the last production link of the molding sand production line.

Regarding the specific shape of the projections 5, each projection 5 has a plate shape, and each projection 5 is inclined with respect to the bottom surface of the furnace body 1. More specifically, the protrusion 5 in this embodiment is in the form of a ploughshare, which has a curved arc surface and a tip, and the tip faces the central axis of the furnace body 1.

It can be understood that, according to the prior art, since the protrusion 5 is in the form of a plough share, it also has the characteristic of a plough share, and when the plough share ploughs, the tip of the plough share can go deep into the soil, so that the soil moves upwards along the plough share, then in this embodiment, when the precoated sand does a centrifugal circular motion, the tip of the protrusion 5 can facilitate the protrusion 5 to guide the precoated sand to move towards a fixed direction, which facilitates the uniform turning motion of the precoated sand.

The mixing furnace in this embodiment further includes a plurality of feeding pumps for adding a plurality of auxiliary materials, and each feeding pump is communicated with the furnace body 1.

When the device is used, the power source drives the rotating roller 3 and the stirring claw 4 to rotate in the furnace body 1, and the stirring claws at different radial positions can stir molding sand in any radial direction, so that hardened molding sand is crushed, uniform molding sand particles are ensured, and binder agglomeration is prevented; simultaneously protruding 5's existence has guaranteed that the molding sand also can the turnover motion in the axial, realizes the homogeneous mixing of molding sand and molding sand binder under the effect that constantly stirs and rolls, improves the mixing degree of consistency and work efficiency.

Example 2

In a typical embodiment of the present invention, example 2 discloses a molding sand production line including a mixing furnace as described in the first aspect.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A mixing furnace is characterized by comprising a furnace body with a circular cross section, wherein a cavity is formed in the furnace body, and stirring claws are arranged in the furnace body and connected with a rotary power source; a plurality of bulges are arranged between the stirring claw and the inner surface of the furnace body, and gaps are reserved between a rotating body formed by a space swept by the stirring claw in the rotating process and the bulges; the plurality of bulges are uniformly arranged on the inner surface of the furnace body.

2. A mixing furnace as claimed in claim 1, wherein said furnace body is cylindrical.

3. A mixing furnace as claimed in claim 1, wherein a plurality of said projections are all located on the same horizontal plane.

4. A mixing furnace as claimed in claim 1, wherein at least two of said projections are located at different levels.

5. The mixing furnace according to claim 1, further comprising a base connected to a lower portion of the furnace body and a sand inlet hopper connected to an upper portion of the furnace body.

6. A kneading furnace according to claim 1, wherein a plurality of said projections are plate-shaped, and each of said projections is inclined with respect to the bottom surface of said furnace body.

7. The mixing furnace of claim 1, further comprising a plurality of feeding pumps for adding a plurality of auxiliary materials, each feeding pump being in communication with the furnace body.

8. A mixing furnace as defined in claim 1, wherein each of said projections has a tip end facing a central axis of said furnace body.

9. The mixing furnace as claimed in claim 1, wherein said stirring claws are connected to a rotary roller which passes through said furnace body, and the rotary roller passes through one end of said furnace body and is connected to a power source.

10. A molding sand production line comprising the mixing furnace according to any one of claims 1 to 9.

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