A calcining device for ceramic structural parts

Abstract

The present invention provides a calcining device for ceramic structural parts, comprising a calcining furnace body, a cover body, a storage plate rack and a hierarchical heating group, the storage plate rack comprising a positioning plate, at least two groups of storage plate bodies and a hanging plate rack distributed in sequence from bottom to top, the hierarchical heating group comprising two groups of horizontal folding and stretching racks and a heating unit; the horizontal folding and stretching rack comprises a plurality of folding rod groups connected side by side, a first slider hinged to the end of the rod unit is longitudinally slidably connected to the side wall of the calcining furnace body, and a second slider is fixed to one end of a pin shaft, a transverse sliding groove matched with the second slider is provided on the side wall of the calcining furnace body, a screw rod passing through the second slider is arranged in the transverse sliding groove, the end of the screw rod passes through the calcining furnace body and is connected to a motor drive, and the second slider farthest from the motor is threadedly connected to the screw rod. The present invention has a simple structure, can improve the calcining efficiency and the uniformity of heat distribution, and is relatively easy, quick and convenient to take and put.

Description

Technical Field

[0001] The invention relates to a calcining device, in particular to a calcining device for a ceramic structural part. Background Art

[0002] Ceramics is a general term for pottery and porcelain, which are generally materials and various products made from clay as the main raw material and various natural minerals through crushing, mixing, molding and calcining.

[0003] When manufacturing ceramics, they often need to be calcined to make porcelain. During the operation, the workpiece to be calcined is generally placed in a calcining furnace first, and then heated and fired by laying heating devices around the calcining furnace. However, in the existing calcining equipment, in order to improve the calcination efficiency, a rack is generally set in the calcination device during calcination, but the rack is generally fixed, and in order to improve the heating and calcination efficiency and uniform distribution, it is generally distributed in a single layer, so the calcination efficiency is low.

[0004] Therefore, there is an urgent need for a calcining device for ceramic structural parts which has a simple structure, can improve calcining efficiency and heat distribution uniformity, and is easy, quick and convenient to take and put. Summary of the invention

[0005] The object of the present invention is to provide a calcining device for ceramic structural parts, which has a simple structure, can improve the calcining efficiency and heat distribution uniformity, and is easy, quick and convenient to take and put.

[0006] The present invention provides the following technical solutions:

[0007] A calcining device for ceramic structural parts, comprising a calcining furnace body with a calcining layer on the inner wall and a cover body sealed and covered on the top of the calcining furnace body, and also comprising a storage plate rack and a hierarchical heating group, the storage plate rack comprising a positioning plate, at least two groups of storage plate bodies and a hanging plate rack distributed in sequence from bottom to top, the bottom of the calcining furnace body is provided with a positioning groove for positioning with the positioning plate, and the positioning plate, the storage plate body and the hanging plate rack are fixedly connected by two groups of connecting column groups, and at least one group of lifting rings is fixed on the top of the hanging plate rack; two groups of relatively arranged hierarchical heating groups are provided between any two groups of storage plate bodies and between the storage plate body and the hanging plate rack, the hierarchical heating group comprises two groups of horizontal folding extension frames connected to the side walls of the calcining furnace body, and a frame A heating unit is provided which is connected and arranged side by side between horizontal folding and stretching frames; the horizontal folding and stretching frames include a plurality of folding rod groups connected side by side, each folding rod group includes a plurality of rod units connected by cross-rotation through a pin shaft, and two adjacent groups of rod units are hingedly connected, a first slider hinged to the end of the rod unit is longitudinally slidably connected to the side wall of the calcining furnace body, and a second slider is fixed to one end of the pin shaft, a horizontal slide groove which extends horizontally and cooperates with the second slider is provided on the side wall of the calcining furnace body, a screw rod which passes through the second slider is arranged in the horizontal slide groove, the end of the screw rod passes through the calcining furnace body and is connected to the motor drive, the second slider farthest from the motor is threadedly connected to the screw rod, and other second sliders are provided with light holes which are sleeved outside the screw rod.

[0008] Preferably, each connecting column group includes at least two groups of connecting column bodies, and the connecting column bodies include fixed columns, at least two groups of connecting column units and locking columns that are fixedly connected in sequence from bottom to top. The connecting column units are distributed longitudinally, and the fixed columns, connecting column units and locking columns distributed from bottom to top are coaxially arranged and their diameters decrease in sequence. A group of movable blocks are arranged on the fixed columns and each layer of connecting column units, and the movable blocks are provided with inner holes that correspond to and are sleeved on the outside of the connecting column units, and the two sides of the storage plate body are limited and fit in the clamping grooves of the movable blocks, and the hanging plate frame is sleeved on the outside of the locking column, and a locking nut is screwed into the locking column and crimped and fixed thereon.

[0009] Preferably, an adjusting nut which can be threadedly connected to the connecting column unit is also provided below the movable block.

[0010] Preferably, the heating unit includes a spacer sleeve connected between the oppositely arranged pin shafts, an electric heating tube installed in the spacer sleeve, and a through hole opened on the side wall of the spacer sleeve.

[0011] Preferably, a fan blowing toward the heating unit is also installed on the side wall of the calcining furnace body perpendicular to the horizontal folding and stretching frame.

[0012] Preferably, an air outlet pipe is also provided on the calcining furnace body, and an induced draft fan is fixedly installed outside the calcining furnace body. One end of the induced draft fan is connected to the air outlet pipe, and excess gas inside the calcining furnace body is discharged through the air outlet pipe, and a valve is also provided inside the lower end of the air outlet pipe.

[0013] Preferably, the calcining layer includes a heating cavity arranged in the side wall of the calcining furnace body, an electric heating rod installed in the heating cavity, and a connecting port connecting the heating cavity and the calcining furnace body.

[0014] The beneficial effects of the present invention are as follows: by providing a storage plate body that can store multiple layers of objects, and cooperating with a hierarchical heating group corresponding to the top of the storage plate body, the phenomenon of slow temperature rise and uneven temperature between layers when the calcining layer is heated close to the side wall of the calcining furnace body between the layers is avoided. In addition, since the heating unit in the hierarchical heating group is controlled by a horizontal folding and stretching frame to extend toward the middle and contract toward the edge, the active adjustment of the storage plate frame during overall lifting, taking out and placement is achieved, so that the calcined parts can be conveniently placed as a whole and then placed in the calcining furnace body or taken out as a whole, which is not only time-saving and labor-saving, but also more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a structural cross-sectional view of the present invention;

[0017] Figure 2 yes Figure 1 The schematic diagram of the structure of the calcined layer after partial sectioning of part A in the middle;

[0018] Figure 3 is a schematic diagram of the structure of the heating unit and the fan when the second slider is a threaded hole;

[0019] Figure 4 is a schematic diagram of the structure of the heating unit and the fan when the second slider is a light hole;

[0020] Markings in the figure: 1 is the calcining layer, 2 is the calcining furnace body, 3 is the cover body, 4 is the storage plate rack, 5 is the hierarchical heating group, 6 is the connecting column group, 7 is the lifting ring, 8 is the fan, 9 is the induced draft fan, 10 is the air outlet pipe, 11 is the valve, 41 is the positioning plate, 42 is the storage plate body, 43 is the hanging plate rack, 51 is the horizontal folding and stretching rack, 52 is the heating unit, 53 is the first slider, 54 is the second slider, 55 is the horizontal slide groove, 56 is the screw rod, 57 is the motor, 58 is the pin shaft, 61 is the fixed column, 62 is the connecting column unit, 63 is the locking column, 64 is the movable block, 65 is the adjusting nut, 521 is the spacer, 522 is the electric heating tube, and 523 is the through hole. DETAILED DESCRIPTION

[0021] Combination Figures 1 to 4 A calcining device for a ceramic structural part is shown. In this embodiment, it includes a calcining furnace body 2 with a calcining layer 1 on the inner wall and a cover body 3 sealed on the top of the calcining furnace body 2, and also includes a storage plate rack 4 and a hierarchical heating group 5. The storage plate rack 4 includes a positioning plate 41, at least two groups of storage plate bodies 42 and a hanging plate rack 43 distributed in sequence from bottom to top. The bottom of the calcining furnace body 2 is provided with a positioning groove for positioning with the positioning plate 41, and the positioning plate 41, the storage plate body 42 and the hanging plate rack 43 are fixedly connected by two groups of connecting column groups 6, and at least one group of lifting rings 7 is fixed on the top of the hanging plate rack 43; two groups of relatively arranged hierarchical heating groups 5 are provided between any two groups of storage plate bodies 42 and between the storage plate bodies 42 and the hanging plate rack 43, and the hierarchical heating group 5 includes two groups of horizontal folding extension racks 51 connected to the side walls of the calcining furnace body 2 , and a heating unit 52 connected and arranged side by side between the horizontal folding and stretching frames 51; the horizontal folding and stretching frames 51 include a plurality of folding rod groups connected side by side, each folding rod group includes a plurality of rod units connected by cross rotation through a pin 58, and two adjacent groups of rod units are hingedly connected, a first slider 53 hinged to the end of the rod unit is longitudinally slidably connected to the side wall of the calcining furnace body 2, and a second slider 54 is fixed to one end of the pin, a horizontal slide groove 55 extending horizontally and cooperating with the second slider 54 is provided on the side wall of the calcining furnace body 2, a screw rod 56 passing through the second slider 54 is arranged in the horizontal slide groove 55, the end of the screw rod 56 passes through the calcining furnace body 2 and is connected to the motor 57, the second slider 54 farthest from the motor 57 is threadedly connected to the screw rod 56, and other second sliders 54 are provided with light holes sleeved outside the screw rod 56;

[0022] Each connecting column group 6 includes at least two groups of connecting column bodies, and the connecting column bodies include fixed columns 61, at least two groups of connecting column units 62 and locking columns 63 that are fixedly connected in sequence from bottom to top. The connecting column units 62 are distributed longitudinally, and the fixed columns 61, connecting column units 62 and locking columns 63 distributed from bottom to top are coaxially arranged and their diameters decrease in sequence. A group of movable blocks 64 are arranged on the fixed columns 61 and each layer of connecting column units 62. The movable blocks 64 are provided with inner holes that are sleeved and matched with the outside of the connecting column units 62 in a one-to-one manner, and the two sides of the storage plate body 42 are limited and matched in the clamping grooves of the movable blocks 64, and the hanging plate frame 43 is sleeved outside the locking column 63, and a locking nut is screwed into the locking column 63 for crimping and fixing, thereby facilitating the placement and fixation of each layer of the storage plate body 42, adapting to the placement of large tooling, and avoiding the problem of unchanged placement or difficult alignment of the calcined parts and tooling due to the small layer spacing between the storage plate bodies 42;

[0023] An adjusting nut 65 which can be threadedly connected to the connecting column unit 62 is also provided below the movable block 64, so as to achieve fine adjustment of the spacing between the storage plate bodies 42 between the levels;

[0024] The heating unit 52 includes a spacer 521 connected between the oppositely arranged pin shafts, an electric heating tube 522 installed inside the spacer 521, and a through hole 523 opened on the side wall of the spacer 521;

[0025] A fan 8 is also installed on the side wall of the calcining furnace body 2 perpendicular to the horizontal folding and stretching frame 51 to blow air toward the heating unit 52, thereby further improving the uniformity of heating.

[0026] The calcining furnace body 2 is also provided with an air outlet pipe 10, and an induced draft fan 9 is fixedly installed outside the calcining furnace body 2. One end of the induced draft fan 9 is connected to the air outlet pipe 10, and the excess gas inside the calcining furnace body 2 is discharged through the air outlet pipe 10. A valve 11 is also provided inside the lower end of the air outlet pipe 10.

[0027] The calcining layer 1 includes a heating chamber arranged in the side wall of the calcining furnace body 2 , an electric heating rod installed in the heating chamber, and a connecting port connecting the heating chamber and the calcining furnace body 2 .

[0028] The working principle of the present invention is: by providing a storage plate body 42 that can store multiple layers of objects, and cooperating with a hierarchical heating group 5 corresponding to the storage plate body 42, the phenomenon of slow temperature rise and uneven temperature between layers of the calcining layer 1 close to the side wall of the calcining furnace body 2 between the layers is avoided. In addition, since the heating unit 52 in the hierarchical heating group 5 is controlled by the horizontal folding and stretching frame 51 to extend toward the middle and contract toward the edge, the active adjustment of the storage plate frame 4 during the overall lifting, taking out and placement is realized, so that the calcined parts can be conveniently placed as a whole and then placed in the calcining furnace body 2 or taken out as a whole, which is not only time-saving and labor-saving, but also more convenient.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A calcining device for ceramic structural parts, comprising a calcining furnace body with a calcining layer on the inner wall and a cover body sealed on the top of the calcining furnace body, characterized in that: It also includes a storage plate rack and a hierarchical heating group, wherein the storage plate rack includes positioning plates, at least two groups of storage plate bodies and a hanging plate rack which are sequentially distributed from bottom to top, and a positioning groove which cooperates with the positioning plate is provided at the bottom of the calcining furnace body, and the positioning plate, the storage plate body and the hanging plate rack are fixedly connected by two groups of connecting column groups, and at least one group of lifting rings is also fixed on the top of the hanging plate rack; Two groups of relatively arranged hierarchical heating groups are provided between any two groups of storage plate bodies and between the storage plate bodies and the hanging plate racks, and the hierarchical heating groups include two groups of horizontal folding and stretching racks connected to the side walls of the calcining furnace body, and heating units arranged side by side and connected between the horizontal folding and stretching racks; The horizontal folding and stretching frame includes a plurality of folding rod groups connected in parallel, each folding rod group includes a plurality of rod units connected by cross-rotation through a pin shaft, and two adjacent groups of rod units are hingedly connected, a first slider hinged to the end of the rod unit is longitudinally slidably connected to the side wall of the calcining furnace body, and a second slider is fixed to one end of the pin shaft, a horizontal slide groove extending horizontally and cooperating with the second slider is provided on the side wall of the calcining furnace body, a screw rod passing through the second slider is arranged in the horizontal slide groove, the end of the screw rod passes through the calcining furnace body and is connected to the motor drive, the second slider farthest from the motor is threadedly connected to the screw rod, and other second sliders are provided with light holes sleeved outside the screw rod; Each connecting column group includes at least two groups of connecting column bodies, and the connecting column bodies include fixed columns, at least two groups of connecting column units and locking columns that are fixedly connected in sequence from bottom to top. The connecting column units are distributed longitudinally, and the fixed columns, connecting column units and locking columns distributed from bottom to top are coaxially arranged and their diameters decrease in sequence. A group of movable blocks are arranged on the fixed columns and each layer of connecting column units, and the movable blocks are provided with inner holes that are sleeved and matched with the outside of the connecting column units in a one-to-one manner, and the two sides of the storage plate body are limitedly matched in the clamping grooves of the movable blocks, and the hanging plate frame is sleeved outside the locking column, and a locking nut is screwed into the locking column and pressed and fixed thereon; An adjusting nut which can be threadedly connected to the connecting column unit is also provided below the movable block; The heating unit comprises a spacer sleeve connected between the oppositely arranged pin shafts, an electric heating tube installed in the spacer sleeve, and a through hole opened on the side wall of the spacer sleeve; A fan blowing toward the heating unit is also installed on the side wall of the calcining furnace body perpendicular to the horizontal folding and stretching frame.

2. A calcining device for a ceramic structural part according to claim 1, characterized in that: An air outlet pipe is also provided on the calcining furnace body, and an induced draft fan is fixedly installed outside the calcining furnace body. One end of the induced draft fan is connected to the air outlet pipe, and excess gas inside the calcining furnace body is discharged through the air outlet pipe. A valve is also provided inside the lower end of the air outlet pipe.

3. The calcining device for a ceramic structural member according to claim 1, characterized in that: The calcining layer comprises a heating cavity arranged in the side wall of the calcining furnace body, an electric heating rod installed in the heating cavity and a connecting port connecting the heating cavity and the calcining furnace body.

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