CN215746237U

CN215746237U - Tectorial membrane sand drying device

Info

Publication number: CN215746237U
Application number: CN202120639829.1U
Authority: CN
Inventors: 冯小文
Original assignee: Xixia Yuanshenghe Casting Material Co ltd
Current assignee: Xixia Yuanshenghe Casting Material Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2022-02-08
Anticipated expiration: 2031-03-29

Abstract

The embodiment of the utility model relates to the technical field of precoated sand production, in particular to a precoated sand drying device which comprises a drying box, a drying device fixed in the drying box and a material turning device connected in the drying box, wherein the material turning device comprises a driving wheel, the outer surface of the driving wheel is fixedly connected with a connecting rod, one end of the connecting rod is fixedly connected with a linkage wheel, the outer surfaces of the driving wheel and the linkage wheel are both in transmission connection with a transmission belt, and a spreading plate, a material turning plate I and a material turning plate II are fixedly connected between the two transmission belts. The embodiment of the utility model has the beneficial effects that: the flat board of spreading out tiles the tectorial membrane sand on the drying cabinet bottom surface earlier, and flitch one overturns the tectorial membrane sand on the drying cabinet bottom surface with flitch two in proper order, at the in-process of stirring, lasts and blows the tectorial membrane sand on the drying cabinet bottom surface through the hot-air of heat extraction fan with infrared lamp heating, guarantees the homogeneity of tectorial membrane sand stoving, also improves its drying efficiency.

Description

Tectorial membrane sand drying device

Technical Field

The utility model relates to the technical field of precoated sand production, in particular to a precoated sand drying device.

Background

In the field of precision steel casting production, the investment casting process has high production cost, long period and great environmental pollution, so that the traditional production process cannot meet the development requirements of modern industry, the investment casting process gradually turns to a precoated sand shell type steel casting process, the precoated sand is promoted to be applied in batch in the precision steel casting industry through the improvement of the performance of precoated sand, the preparation method of the precoated sand is subjected to 4 stages of a dry mixing method, a cold precoating method, a warm precoating method and a hot precoating method, at present, the production of the precoated sand almost adopts the hot precoating method, the hot precoating process is to heat raw sand to a certain temperature, then the raw sand is respectively mixed and stirred with resin, a urotropine aqueous solution and calcium stearate, and a finished product is obtained after cooling, crushing, screening and drying.

Adopt the oven to carry out static stoving usually among the prior art for the tectorial membrane sand of stoving is inhomogeneous, and drying efficiency is low, and operating time is long, can not quick realization stoving.

Therefore, there is a need for a precoated sand drying apparatus that overcomes the above problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems that static drying causes uneven drying of precoated sand, low drying efficiency, long working time and incapability of realizing rapid drying, the embodiment of the utility model provides a precoated sand drying device, which comprises a drying box, a drying device fixed in the drying box and a material overturning device connected in the drying box,

the material overturning device comprises a driving wheel, a connecting rod is fixedly connected to the outer surface of the driving wheel, a linkage wheel is fixedly connected to one end of the connecting rod, driving wheels and the outer surface of the linkage wheel are in transmission connection with driving belts, and a material flattening plate, a material overturning plate I and a material overturning plate II are fixedly connected between the driving belts.

Optionally, two the drive belt all is connected with the swiveling wheel, two connect through the connecting rod between the swiveling wheel, the connecting rod with the connecting rod all rotates to be connected on the inner wall of drying cabinet.

Optionally, one end of the connecting rod is fixedly connected to a power output end of the driving mechanism, and the driving mechanism is fixedly connected to the drying box through a support.

Optionally, the spreading plate, the first material turning plate and the second material turning plate are dispersedly mounted on the transmission belt, and the separation teeth in the first material turning plate and the second material turning plate are arranged in a staggered manner.

Optionally, the drying device comprises a mounting plate, the mounting plate is fixedly connected with an infrared lamp tube through a support, a vent hole is formed in the mounting plate, and a heat exhaust fan is connected in the vent hole through the support.

Optionally, a material port is formed in the outer surface of the drying box, and a hopper is fixedly connected to the position, close to the material port, of the surface of the drying box.

Optionally, be connected with strutting arrangement on the drying cabinet, strutting arrangement includes the bottom plate, fixed surface is connected with the bracing piece on the bottom plate, the one end of bracing piece is rotated through the pivot and is connected the one end department of drying cabinet lower surface, the upper surface of bottom plate is rotated through the pivot and is connected with the hydraulic support pole, one end rotate through the pivot and connect the other end department of drying cabinet lower surface.

The utility model has the beneficial effects that: the drying box has the advantages that the film-coated sand on the bottom surface of the drying box is firstly tiled by the tile spreading plate, the first material turning plate and the second material turning plate sequentially turn over the film-coated sand on the bottom surface of the drying box, and hot air heated by the infrared lamp tube is continuously blown to the film-coated sand on the bottom surface of the drying box by the heat exhaust fan in the material turning process to be dried, so that the drying uniformity of the film-coated sand is ensured, the drying efficiency is also improved, and other beneficial effects are explained in detail in the specific embodiment.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the precoated sand drying apparatus;

FIG. 2 is a schematic view of the interior of the drying box;

FIG. 3 is a schematic view of the structure of the drying apparatus;

FIG. 4 is a schematic structural diagram of the material turning device;

fig. 5 is a schematic structural view of the supporting device.

In the figure:

1. a drying oven;

2. a drying device; 21. mounting a plate; 22. an infrared lamp tube; 23. a vent hole; 24. a heat exhaust fan;

3. a material turning device; 31. a drive wheel; 32. a connecting rod; 33. a linkage wheel; 34. a transmission belt; 35. flattening the plate; 36. a material turning plate I; 37. a material turning plate II; 38. a rotating wheel; 39. a drive mechanism;

4. a support device; 41. a base plate; 42. a support bar; 43. and a hydraulic support rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present 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, and the terms used herein are for the purpose of describing particular embodiments only and are not intended to be limiting of the utility model, and terms such as "and/or" as used herein include any and all combinations of one or more of the associated listed items; in addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 to 5, the embodiment of the utility model discloses a precoated sand drying device, which comprises a drying oven 1, a drying device 2 fixed in the drying oven 1 and a material turning device 3 connected in the drying oven 1,

the stirring device 3 comprises a driving wheel 31, a connecting rod 32 is fixedly connected to the outer surface of the driving wheel 31, a linkage wheel 33 is fixedly connected to one end of the connecting rod 32, transmission belts 34 are connected to the outer surfaces of the driving wheel 31 and the linkage wheel 33 in a transmission mode, a spreading plate 35, a first stirring plate 36 and a second stirring plate 37 are fixedly connected between the two transmission belts 34, rotating wheels 38 are connected to the two transmission belts 34, the two rotating wheels 38 are connected through connecting rods, the connecting rods and the connecting rod 32 are connected to the inner wall of the drying box 1 in a rotating mode, one end of the connecting rod 32 is fixedly connected to the power output end of a driving mechanism 39, the driving mechanism 39 is fixedly connected to the drying box 1 through a support, the spreading plate 35, the first stirring plate 36 and the second stirring plate 37 are installed on the transmission belts 34 in a dispersing mode, and separating teeth in the first stirring plate 36 and the second stirring plate 37 are arranged in a staggered mode;

the drying device 2 comprises an installation plate 21, an infrared lamp tube 22 is fixedly connected to the installation plate 21 through a support, a vent hole 23 is formed in the installation plate 21, and a heat exhaust fan 24 is connected to the interior of the vent hole 23 through a support;

a material port is formed in the outer surface of the drying box 1, and a hopper is fixedly connected to the surface of the drying box 1 close to the material port;

be connected with strutting arrangement 4 on drying cabinet 1, strutting arrangement 4 includes bottom plate 41, and fixed surface is connected with bracing piece 42 on bottom plate 41, and the one end department at drying cabinet 1 lower surface is rotated through the pivot to the one end of bracing piece 42, and the upper surface of bottom plate 41 is rotated through the pivot and is connected with hydraulic support pole 43, and the one end of rotating through the pivot and connecting the other end department at drying cabinet 1 lower surface.

In summary, the operation flow of the precoated sand drying device in the use process is as follows:

the method comprises the following steps: the precoated sand to be dried is put into the drying box 1 through the hopper:

starting the hydraulic support rod 43 to enable one end of the drying box 1 to be lower than one end of the material inlet, so that the precoated sand slides to the inside of the drying box 1 under the action of the dead weight of the precoated sand; after the placement is completed, the hydraulic support rod 43 is started again, so that the drying box 1 is in a state of being parallel to the bottom plate 41;

step two: after the drying box 1 is parallel to the bottom plate 41, the drying device 2 and the material turning device 3 are started to dry the precoated sand in the drying box 1;

the turnover device 3 overturns the precoated sand in the drying box 1:

after the precoated sand enters the drying box 1, the driving mechanism 39 is started to drive the driving wheel 31 to rotate, so that the driving belt 34 drives the spreading plate 35, the material turning plate I36 and the material turning plate II 37 to move,

when the spreading plate 35 passes through the inner bottom wall of the drying box 1, the precoated sand on the bottom surface of the drying box 1 is spread on the bottom surface of the drying box 1; the material turning plate II 37 passes through the precoated sand on the bottom surface of the drying box 1, and ridges are formed on the tiled precoated sand, so that the contact area between the precoated sand and air is enlarged; the first material turning plate 36 and the second material turning plate 37 are then subjected to precoated sand on the bottom surface of the drying box 1, the separation teeth in the first material turning plate 36 and the second material turning plate 37 are arranged in a staggered mode, and the separation teeth on the first material turning plate 36 can directly pass through the middle of the precoated sand ridged by the second material turning plate 37 to dump the precoated sand in the middle of ridges for drying;

the drying device 2 performs a drying operation:

the infrared lamp 22 works to heat the air around the infrared lamp 22, and the heat exhausting fan 23 blows the hot air to the precoated sand on the bottom surface of the drying box 1 to dry the precoated sand, so that the drying efficiency is improved;

when carrying out the stoving operation, the flat board 35 tiles with the tectorial membrane sand on drying cabinet 1 bottom surface earlier, and turning over board 36 and turning over board two 37 overturn the tectorial membrane sand on drying cabinet 1 bottom surface in proper order, at the in-process of turning over, continuously blows the tectorial membrane sand on drying cabinet 1 bottom surface through heat extraction fan 23 with the hot-air of infrared lamp 22 heating, dries, improves its drying efficiency.

Step three: discharging the dried precoated sand from the drying oven 1:

hydraulic support rod 43 is started again for the one end of drying cabinet 1 is higher than the one end of material mouth department, makes tectorial membrane sand under the effect of its dead weight, through the material mouth landing to the hopper in.

The present invention is further described in the detailed description, rather than by limitation, and it will be apparent to those skilled in the art that numerous changes in structure may be made without departing from the spirit and scope of the utility model, all of which are intended to be covered by the appended claims.

Claims

1. A precoated sand drying device is characterized by comprising a drying box (1), a drying device (2) fixed in the drying box (1) and a material turning device (3) connected in the drying box (1),

the material overturning device (3) comprises a driving wheel (31), a connecting rod (32) is fixedly connected to the outer surface of the driving wheel (31), a linkage wheel (33) is fixedly connected to one end of the connecting rod (32), the driving wheel (31) and the outer surface of the linkage wheel (33) are in transmission connection with a driving belt (34), and the driving belt (34) is fixedly connected with a spreading plate (35), a material overturning plate I (36) and a material overturning plate II (37) between the driving belt (34).

2. A coated sand drying device according to claim 1, characterized in that two rotation wheels (38) are connected to the two transmission belts (34), the two rotation wheels (38) are connected through a connecting rod, and the connecting rod (32) are rotatably connected to the inner wall of the drying box (1).

3. A precoated sand drying device according to claim 2, wherein one end of the connecting rod (32) is fixedly connected to a power output end of a driving mechanism (39), and the driving mechanism (39) is fixedly connected to the drying box (1) through a bracket.

4. A coated sand drying device according to claim 1, characterized in that the spreading plate (35), the material turning plate one (36) and the material turning plate two (37) are dispersedly mounted on the transmission belt (34), and the material turning plate one (36) and the separating teeth in the material turning plate two (37) are staggered.

5. The precoated sand drying device according to claim 1, wherein the drying device (2) comprises a mounting plate (21), an infrared lamp tube (22) is fixedly connected to the mounting plate (21) through a support, a vent hole (23) is formed in the mounting plate (21), and a heat exhaust fan (24) is connected to the interior of the vent hole (23) through a support.

6. The precoated sand drying device according to claim 1, wherein a material port is formed in the outer surface of the drying box (1), and a hopper is fixedly connected to the surface of the drying box (1) close to the material port.

7. A precoated sand drying device according to claim 1, characterized in that, be connected with strutting arrangement (4) on drying cabinet (1), strutting arrangement (4) includes bottom plate (41), fixed surface is connected with bracing piece (42) on bottom plate (41), the one end of bracing piece (42) rotates through the pivot to be connected in one end of drying cabinet (1) lower surface, the upper surface of bottom plate (41) rotates through the pivot to be connected with hydraulic pressure bracing piece (43), one end rotate through the pivot to be connected in the other end of drying cabinet (1) lower surface.