Push plate

Abstract

The utility model relates to the technical field of heat treatment, in particular to a push plate which comprises a push plate body, and a plurality of supporting parts used for supporting objects to be borne are arranged on the push plate body. The supporting part supports a bearing object and forms a ventilation channel with the upper surface of the bottom plate body, so that airflow passes through the bottom of the bearing object; the push plate body is further provided with an air hole for guiding air flow below the push plate body into the upper portion of the push plate body. The supporting part is arranged on the push plate body, so that an airflow channel is formed between a bearing object and the push plate body, and the design of the air holes is matched, so that materials on the bearing object are fully contacted with airflow, particularly in a heat treatment furnace, the airflow uniformly acts on the materials of the bearing object, the heat treatment quality is improved, and the problem that in the prior art, the heat treatment efficiency is high is solved. And the airflow cannot smoothly pass through the bottom of the carrier, so that the heat treatment effect is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat treatment technical field especially relates to a push plate. BACKGROUND

[0002] The push plate is one of the core components of the push plate furnace, which is used for bearing the workpiece to be sintered and gradually sending the workpiece into the furnace of different temperature areas for heating, sintering and cooling through the movement of the push plate.

[0003] Chinese patent CN201273768Y discloses a kind of injection circulating open-flame push plate kiln, it is composed of kiln body, burner, push plate, bottom plate and bottom plate support, kiln body is composed of kiln wall, kiln top and kiln bottom, burner is arranged on the both sides of kiln wall, it is characterized in that burner is staggered arrangement up and down, the center of upper and lower burner is respectively aligned with the center line of upper transverse fire channel and lower transverse fire channel, observation hole is provided at the corresponding position opposite burner;Bottom plate is built on adjacent two bottom plate supports, the width of bottom plate is same with the width of upper portion of bottom plate support, the upper surface of bottom plate is designed into groove type, and two parallel convex strips along the length direction of bottom plate are designed in the groove, the height of convex strip is lower than the height of two ends protrusion on the upper surface of bottom plate, push plate is supported on the two parallel convex strips, and product is slid on the upper surface.The utility model has the advantages of high heat transfer efficiency, can effectively ensure that the cross section temperature in sintering zone is uniform, and improve the sintering quality and yield of product.

[0004] But the push plate of this technical scheme is an integral structure, airflow cannot pass through push plate at bottom and act on material, which affects heat treatment effect. UTILITY MODEL CONTENTS

[0005] The utility model aims at the deficiency of prior art, provide a kind of push plate, support part is set on push plate body, and form air passage between load and push plate body, cooperate with the design of air hole, guarantee that material on load is contacted with airflow fully, especially in heat treatment furnace, guarantee that airflow acts on the material of load uniformly, improve heat treatment quality, solve the problem that airflow passes through the bottom of load not smoothly in prior art, affect heat treatment effect.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of push plate, including push plate body, the push plate body is equipped with several support parts for supporting the load to be carried;The support part supports the load and forms a ventilation passage with the upper surface of the bottom plate body, so that the airflow passes through the bottom of the load;The push plate body is also provided with air holes for guiding the airflow below the push plate body to the upper part of the push plate body.

[0008] As an improvement, the support part is in the form of a truncated cone, and the bottom edge of the support part at the edge of the push plate body coincides with the edge of the push plate body.

[0009] As an improvement, the air holes are linearly or circumferentially arranged.

[0010] As an improvement, positioning holes are arranged on the push plate body, and the positioning holes are arranged at four corners of the push plate body.

[0011] As an improvement, the positioning holes are blind hole structures, and the bottom size is smaller than the top size.

[0012] As an improvement, positioning columns are arranged in the positioning holes and matched with the positioning hole profiles.

[0013] As an improvement, the push plate body is made of refractory material, preferably corundum mullite.

[0014] As an improvement, the positioning columns are made of high-temperature ceramic.

[0015] As an improvement, the four corners of the push plate body are also provided with inclined guide portions.

[0016] As an improvement, the guide portions include inclined guide edges arranged at intersections of side edges of the push plate body and circular arc guide edges at intersections of the two inclined guide edges.

[0017] The push plate body has the advantages that:

[0018] (1) The push plate body is provided with a support portion, so that an airflow channel is formed between the load and the push plate body, the material on the load is fully contacted with the airflow, especially in the heat treatment furnace, the airflow uniformly acts on the material on the load, and the heat treatment quality is improved.

[0019] (2) The support portion is designed as a conical frustum structure, the strength of the support portion is improved, and the support portion is suitable for a load with large weight.

[0020] (3) The push plate body is provided with air holes, so that the airflow can pass through the push plate body and act on the surface of the material on the load, the effect of the airflow passing through the material is further improved, and the heat treatment quality of the material is ensured.

[0021] (4) The positioning columns are arranged, the load is positioned, and the load is prevented from being dislocated and moved on the push plate body.

[0022] (5) The push plate is made of corundum mullite which is resistant to high temperature, meets the use of high-temperature environment, does not deform, and ensures stable forward conveying of the load.

[0023] In summary, the push plate body has the advantages that the airflow can stably pass through the load, the service life is long, and the like. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the whole structure schematic view of the utility model;

[0025] Figure 2 It is the push plate body overhead schematic view of the utility model;

[0026] Figure 3 It is the utility model Figure 2 A-A section view schematic view. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0029] Embodiment one

[0030] As Figures 1-3As shown, the embodiment provides a push plate, comprising a push plate body 1, wherein a plurality of support parts 2 for supporting a to-be-supported object are arranged on the push plate body 1, and the support parts 2 are uniformly arranged along the surface of the push plate; the support parts 2 support the to-be-supported object and form a ventilation passage between the bottom of the to-be-supported object and the upper surface of the push plate body, so that the airflow passes through the bottom of the to-be-supported object; and the push plate body 1 is further provided with air permeation holes 3 for guiding the airflow below the push plate body 1 to the upper part of the push plate body 1. The push plate of the application is suitable for use in a high-temperature furnace, such as a high-temperature push plate furnace, and the to-be-supported object above the push plate is a material frame loaded with material, and the material frame is filled with material, and the material frame is moved by the push plate to realize continuous operation.

[0031] It should be noted that the support parts 2 are uniformly arranged in a plurality of numbers along the circumference of the support plate body, and at least one is arranged in the middle part of the push plate body 1, so as to stably and uniformly support the to-be-supported object placed on the push plate body 1.

[0032] As an improvement, the support parts 2 are in the shape of a truncated cone, the bottom edge of the support part 2 at the edge of the push plate body 1 coincides with the edge of the push plate body 1, so as to ensure the strength of the support part 2 and avoid the problem that the support part 2 is easily damaged due to external force.

[0033] Preferably, the air permeation holes 3 are linearly or circumferentially arranged in a plurality of numbers; in the embodiment, the air permeation holes 3 are preferably arranged in two rows along the center of the push plate body 1, so as to ensure that the gas uniformly passes through the air permeation holes 3.

[0034] As an improvement, the push plate further comprises positioning holes 4 arranged on the push plate body 1, and the positioning holes 4 are arranged at the four corners of the push plate body 1.

[0035] Further, the positioning holes 4 are in the form of blind holes, and the size of the bottom part is smaller than that of the top part, that is, the included angle α between the side edge and the bottom part is greater than 90°; it should be noted that the positioning holes 4 are arranged in the form of a cone, so as to realize the quick installation of the positioning column 5.

[0036] As an improvement, the push plate further comprises a positioning column 5 installed in the positioning hole 4 and matched with the contour of the positioning hole 4, and the positioning column 5 is used for positioning the position of the to-be-supported object on the push plate.

[0037] It should be noted that the positioning column 5 is connected with the push plate body 1 in the form of clamping, adhesive adhesion or the like, and specifically, the positioning column 5 is inserted into the positioning hole 4 for installation after the positioning hole 4 of the push plate body 1 is formed.

[0038] Preferably, the material of the push plate body 1 is refractory material, preferably corundum mullite; it should be noted that the corundum mullite raw material is first pressed into the shape of the push plate body 1 under the process condition of vibration pressure forming, and is fired at a high temperature of 1750 DEG C to form a product, so as to ensure the quality and pressure strength of the product, and to meet the use under high temperature working conditions.

[0039] Preferably, the material of the positioning column 5 is high-temperature ceramic, so as to ensure the strength under high temperature working conditions.

[0040] As an improvement, the four corners of the push plate body 1 are further provided with inclined guide portions 6.

[0041] Further, the guide portion 6 comprises an inclined guide edge 61 arranged at the intersection of the side edges of the push plate body 1 and an arc guide edge 62 intersecting the two inclined guide edges 61.

[0042] It should be noted that the guide portion 6 is arranged to guide the front end of the push plate during the pushing process, so as to prevent the push plate from being stuck, and the arrangement of the arc guide edge 62 improves the service life of the push plate body 1.

[0043] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A push plate, characterized in that, The push plate body is provided with a plurality of support portions for supporting the to-be-supported objects; the support portions support the to-be-supported objects and form air passage with the upper surface of the push plate body, so that the air flow passes through the bottom of the to-be-supported objects; the push plate body is further provided with air permeation holes for guiding the air flow below the push plate body to the upper part of the push plate body.

2. The push plate of claim 1, wherein, The support portions are in the shape of a frustum, and the bottom edge of the support portions at the edge of the push plate body coincides with the edge of the push plate body.

3. The push plate of claim 1, wherein, The air permeation holes are linear or circumferentially distributed.

4. The push plate of claim 1, wherein, The push plate body is further provided with positioning holes at the four corners of the push plate body.

5. A push plate according to claim 4, wherein, The positioning holes are blind holes, and the bottom size is smaller than the top size.

6. The push plate of claim 4, wherein, The push plate body is further provided with positioning columns which are installed in the positioning holes and are adapted to the profile of the positioning holes.

7. The push plate of claim 1, wherein, The material of the push plate body is refractory material.

8. The push plate of claim 6, wherein, The material of the positioning columns is high-temperature ceramic.

9. The pusher plate of claim 1, wherein, The four corners of the push plate body are further provided with inclined guide portions.

10. The push plate of claim 9, wherein, The guide portions include inclined guide edges at the intersection of the side edges of the push plate body and circular arc guide edges at the intersection of the two inclined guide edges.

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