Sand discharging device for fused ceramic baking sand holding furnace

Abstract

The application discloses a sand discharging device for a fused ceramic baking sand holding furnace, which comprises a holding box, fixed sleeves are connected to the two sides of the holding box, heating pipes are fixedly connected to the inside of the fixed sleeves, a supporting plate is fixedly connected to the bottom of the holding box, a motor is fixedly connected to the left side of the supporting plate, a rotating rod is fixedly connected to the top end of the output shaft of the motor through a one-way bearing and a shaft sleeve, and the top end of the rotating rod penetrates into the inside of the holding box. The motor and the reciprocating screw rod drive the sliding sleeve and the screw rod conveyor to rotate to a suitable angle through the moving sleeve and the sliding rod, then the motor and the rotating rod agitate the baking sand through the stirring rod to prevent blockage, and finally the screw rod conveyor discharges the baking sand into the inside of a designated collecting device, so that the sand discharging is convenient and fast, the discharging speed is relatively high, blockage is not prone to occur, and the baking sand can be directly discharged into the inside of the collecting device.

Description

Technical Field

[0001] This invention relates to the field of calcining sand holding furnace technology, specifically to a sand discharge device for a molten ceramic calcining sand holding furnace. Background Technology

[0002] Calcined sand is a high-quality resin sand substrate obtained by high-temperature treatment of raw sand. This sand has the characteristics of clean surface, low expansion rate, low mud content, and low loss on ignition. In the resin sand process, it can greatly improve the bonding efficiency, reduce the amount of resin added, and reduce the amount of gas generated by the sand core. At the same time, due to the phase transformation of silica sand, it can reduce expansion-type and porosity defects in castings.

[0003] After the calcined sand is heated, a calcined sand holding furnace is usually used to keep the calcined sand warm so that users can use it later. After the temperature of the calcined sand drops, it needs to be discharged. The current calcined sand holding furnace only uses a discharge valve pipe to discharge the calcined sand, which is slow, prone to blockage, and inconvenient to discharge the calcined sand directly into the collection equipment.

[0004] Therefore, it is necessary to redesign and modify the calcining sand holding furnace to effectively prevent the inconvenience of rapid sand discharge. Summary of the Invention

[0005] To address the problems mentioned in the background art, the present invention aims to provide a sand discharge device for a molten ceramic calcining sand holding furnace, which has the advantages of convenient and rapid sand discharge, and solves the problem that the current calcining sand holding furnace only uses a discharge valve pipe to discharge the calcining sand, resulting in a slow discharge speed.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sand discharge device for a furnace for molten ceramic calcining sand, comprising a heat preservation box, wherein fixed sleeves are fixedly connected to both sides of the heat preservation box, a heating tube is fixedly connected inside the fixed sleeves, a support plate is fixedly connected to the bottom of the heat preservation box, a motor is fixedly connected to the left side of the support plate, a rotating rod is fixedly connected to the top end of the output shaft of the motor through a one-way bearing and a bushing, the top end of the rotating rod penetrates into the interior of the heat preservation box, and stirring rods are fixedly connected to both sides of the rotating rod;

[0007] The bottom end of the motor output shaft is fixedly connected to a reciprocating screw via a one-way bearing and a bushing. A movable sleeve is movably connected to the surface of the reciprocating screw via a connecting rod and a connecting sleeve. A sliding rod is fixedly connected to both the front and back of the movable sleeve. A sliding sleeve is slidably fitted onto the surface of the sliding rod. A circular sleeve is connected to the left side of the bottom of the insulation box via a connecting pipe. A circular sleeve is slidably fitted onto the surface of the circular sleeve. The bottom of the circular sleeve is connected to a screw conveyor. The left end of the sliding sleeve is fixedly connected to the surface of the screw conveyor.

[0008] As a preferred embodiment of the present invention, a control mechanism is fixedly connected to the right side of the bottom of the heat preservation box. The control mechanism includes a mounting plate, and a time switch is fixedly connected to the right side of the mounting plate. The output terminal of the time switch is electrically connected to the input terminal of the motor.

[0009] As a preferred embodiment of the present invention, a sleeve plate is fixedly connected to the bottom of the mounting plate, and the sleeve plate is slidably sleeved on the surface of the reciprocating screw.

[0010] In a preferred embodiment of the present invention, a positioning rod is fixedly connected to the top of the sleeve plate, and the movable sleeve is slidably sleeved on the surface of the positioning rod.

[0011] As a preferred embodiment of the present invention, an insulation mechanism is fixedly connected to the surface of the insulation box, the insulation mechanism includes insulation cotton felt, and an L-shaped groove is provided on the left side of the bottom of the insulation box, and an L-shaped valve plate is slidably connected inside the L-shaped groove.

[0012] As a preferred embodiment of the present invention, the front and back sides of the second circular sleeve are fixedly connected to a support rod, the surface of the support rod is slidably fitted with a support sleeve, and the top of the support sleeve is fixedly connected to the bottom of the insulation box.

[0013] As a preferred embodiment of the present invention, rubber sleeves are fixedly connected to the top and bottom of the left side of the support plate, and the surfaces of the rotating rod and the reciprocating screw are in contact with the inner wall of the rubber sleeves.

[0014] As a preferred embodiment of the present invention, a counterweight plate is fixedly installed on the right side of the bottom of the insulated box by bolts, and the top of the right side of the support plate is fixedly connected to the surface of the mounting plate by a connecting plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. This invention uses a motor and a reciprocating screw to drive the sliding sleeve and screw conveyor to rotate to a suitable angle via a moving sleeve and a sliding rod. Then, the motor and rotating rod stir the calcined sand through a stirring rod to prevent clogging. Finally, the screw conveyor discharges the calcined sand into the designated collection equipment, achieving the advantages of convenient and fast sand discharge. The discharge speed is relatively fast, and it is not easy to cause blockage. It is also convenient to discharge the calcined sand directly into the collection equipment.

[0017] 2. By setting up a control mechanism, the present invention can control the motor in a timed manner, so that the motor can drive the rotating rod and stirring rod to stir the calcined sand in a timed manner, thereby improving the heating and heat preservation effect of the heating tube on the calcined sand. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0020] Figure 3 For the present invention Figure 1 Enlarged structural diagram at point B;

[0021] Figure 4 This is a top view of the movable sleeve structure of the present invention;

[0022] Figure 5 This is a left view schematic diagram of the circular sleeve II of the present invention;

[0023] Figure 6 This is a three-dimensional schematic diagram of the circular sleeve of the present invention.

[0024] In the diagram: 1. Insulation box; 2. Fixed sleeve; 3. Heating tube; 4. Support plate; 5. Motor; 6. Rotating rod; 7. Stirring rod; 8. Reciprocating screw; 9. Moving sleeve; 10. Sliding rod; 11. Sliding sleeve; 12. Circular sleeve one; 13. Circular sleeve two; 14. Screw conveyor; 15. Control mechanism; 151. Mounting plate; 152. Time control switch; 16. Sleeve plate; 17. Positioning rod; 18. Insulation mechanism; 181. Insulation felt; 182. L-shaped groove; 183. L-shaped valve plate; 19. Support rod; 20. Support sleeve; 21. Rubber sleeve; 22. Counterweight plate. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figures 1 to 6 As shown, the sand discharge device for a furnace for melting ceramic calcining sand provided by the present invention includes a heat preservation box 1, with fixed sleeves 2 fixedly connected to both sides of the heat preservation box 1, a heating tube 3 fixedly connected inside the fixed sleeve 2, a support plate 4 fixedly connected to the bottom of the heat preservation box 1, a motor 5 fixedly connected to the left side of the support plate 4, a rotating rod 6 fixedly connected to the top of the output shaft of the motor 5 through a one-way bearing and a bushing, the top of the rotating rod 6 penetrating into the interior of the heat preservation box 1, and stirring rods 7 fixedly connected to both sides of the rotating rod 6.

[0027] The bottom end of the output shaft of motor 5 is fixedly connected to a reciprocating screw 8 through a one-way bearing and a bushing. The surface of the reciprocating screw 8 is movably connected to a movable sleeve 9 through a connecting rod and a connecting sleeve. The front and back of the movable sleeve 9 are fixedly connected to a sliding rod 10. The surface of the sliding rod 10 is slidably fitted with a sliding sleeve 11. The left side of the bottom of the insulation box 1 is connected to a circular sleeve 12 through a connecting pipe. The surface of the circular sleeve 12 is slidably fitted with a circular sleeve 13. The bottom of the circular sleeve 13 is connected to a screw conveyor 14. The left end of the sliding sleeve 11 is fixedly connected to the surface of the screw conveyor 14.

[0028] refer to Figure 1 A control mechanism 15 is fixedly connected to the right side of the bottom of the heat preservation box 1. The control mechanism 15 includes a mounting plate 151. A time control switch 152 is fixedly connected to the right side of the mounting plate 151. The output terminal of the time control switch 152 is electrically connected to the input terminal of the motor 5.

[0029] As a technical optimization of the present invention, by setting up a control mechanism 15, the motor 5 can be controlled in a timed manner, so that the motor 5 can drive the rotating rod 6 and the stirring rod 7 to stir the calcined sand in a timed manner, thereby improving the heating and heat preservation effect of the heating tube 3 on the calcined sand.

[0030] refer to Figure 3 A sleeve plate 16 is fixedly connected to the bottom of the mounting plate 151, and the sleeve plate 16 is slidably sleeved on the surface of the reciprocating screw 8.

[0031] As a technical optimization of the present invention, by setting the sleeve plate 16, the bottom end of the reciprocating screw 8 can be supported and limited, thereby improving the stability of the reciprocating screw 8 during rotation.

[0032] refer to Figure 3 A positioning rod 17 is fixedly connected to the top of the sleeve 16, and the movable sleeve 9 is slidably sleeved on the surface of the positioning rod 17.

[0033] As a technical optimization of the present invention, by setting the positioning rod 17, the movable sleeve 9 can be limited, thus avoiding the phenomenon of rotation of the movable sleeve 9 when it moves.

[0034] refer to Figure 2 The surface of the insulated box 1 is fixedly connected to an insulation mechanism 18, which includes an insulation cotton felt 181. An L-shaped groove 182 is provided on the left side of the bottom of the insulated box 1, and an L-shaped valve plate 183 is slidably connected inside the L-shaped groove 182.

[0035] As a technical optimization of the present invention, by setting up the heat preservation mechanism 18, the surface of the heat preservation box 1 can be protected, and the calcined sand can be blocked to prevent the calcined sand from falling directly into the interior of the screw conveyor.

[0036] refer to Figure 5Support rods 19 are fixedly connected to both the front and back of the circular sleeve 13. Support sleeves 20 are slidably sleeved on the surface of the support rods 19. The top of the support sleeves 20 is fixedly connected to the bottom of the insulation box 1.

[0037] As a technical optimization of the present invention, by setting the support rod 19 and the support sleeve 20, the second round sleeve 13 can be supported, thereby improving the stability of the second round sleeve 13.

[0038] refer to Figure 3 Rubber sleeves 21 are fixedly connected to the top and bottom of the left side of the support plate 4, and the surfaces of the rotating rod 6 and the reciprocating screw 8 are in contact with the inner wall of the rubber sleeves 21.

[0039] As a technical optimization of the present invention, by setting the rubber sleeve 21, the friction between the rotating rod 6 and the support plate 4 can be increased, thereby improving the stability of the rotating rod 6 when it does not need to rotate.

[0040] refer to Figure 1 A counterweight plate 22 is fixedly installed on the right side of the bottom of the insulated box 1 by bolts, and the top right side of the support plate 4 is fixedly connected to the surface of the mounting plate 151 by a connecting plate.

[0041] As a technical optimization of the present invention, by setting a counterweight plate 22, the right side of the insulation box 1 can be counterweighted, thus preventing the insulation box 1 from easily tipping over.

[0042] The working principle and usage process of this invention are as follows: In use, the user first pours the heated calcined sand into the heat preservation box 1. The heat preservation box 1 is sealed and protected by a top cover. Simultaneously, the heating tube 3 heats and keeps the calcined sand warm. When the calcined sand needs to be used, simply open the cover. When the calcined sand needs to be discharged, start the motor 5. The output shaft of the motor 5 rotates forward, driving the reciprocating screw 8 to rotate via the one-way bearing 2. The reciprocating screw 8 drives the moving sleeve 9 to move downwards, which in turn drives the sliding rod 10 to move. While sliding inside the sliding sleeve 11, the screw conveyor 14 is driven to rotate around the circular sleeve 12. When the screw conveyor 14 reaches a suitable angle, the screw conveyor 14 and the motor 5 are started. The output shaft of the motor 5 reverses and drives the rotating rod 6 to rotate through the one-way bearing. The rotating rod 6 drives the stirring rod 7 to stir the calcined sand to prevent blockage. Then, the L-shaped valve plate 183 is pulled to the right, and the calcined sand falls down into the inside of the screw conveyor 14. The screw conveyor 14 discharges the calcined sand into the designated collection equipment, thus achieving the advantages of convenient and fast sand discharge.

[0043] In summary, the sand discharge device for the furnace for holding molten ceramic calcining sand uses a motor 5 and a reciprocating screw 8 to drive the sliding sleeve 11 and the screw conveyor 14 to rotate to a suitable angle via a moving sleeve 9 and a sliding rod 10. Then, the motor 5 and the rotating rod 6 stir the calcining sand through the stirring rod 7 to prevent clogging. Finally, the screw conveyor 14 discharges the calcining sand into the designated collection equipment, achieving the advantages of convenient and rapid sand discharge. The discharge speed is fast, clogging is not easy, and it is convenient to directly discharge the calcining sand into the collection equipment.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sand discharge device for a furnace for holding molten ceramic calcining sand, comprising a holding box (1), characterized in that: The heat preservation box (1) is fixedly connected to both sides of the fixed sleeve (2), and the heating tube (3) is fixedly connected inside the fixed sleeve (2). The bottom of the heat preservation box (1) is fixedly connected to the support plate (4). The left side of the support plate (4) is fixedly connected to the motor (5). The top of the output shaft of the motor (5) is fixedly connected to the rotating rod (6) through a one-way bearing and a bushing. The top of the rotating rod (6) extends into the interior of the heat preservation box (1). Both sides of the rotating rod (6) are fixedly connected to the stirring rod (7). The bottom end of the output shaft of the motor (5) is fixedly connected to a reciprocating screw (8) through a one-way bearing and a bushing. The surface of the reciprocating screw (8) is movably connected to a movable sleeve (9) through a connecting rod and a connecting sleeve. The front and back sides of the movable sleeve (9) are fixedly connected to a sliding rod (10). The surface of the sliding rod (10) is slidably fitted with a sliding sleeve (11). The left side of the bottom of the insulation box (1) is connected to a circular sleeve (12) through a connecting pipe. The surface of the circular sleeve (12) is slidably fitted with a circular sleeve (13). The bottom of the circular sleeve (13) is connected to a screw conveyor (14). The left end of the sliding sleeve (11) is fixedly connected to the surface of the screw conveyor (14). The front and back sides of the circular sleeve (13) are fixedly connected to support rods (19), and support sleeves (20) are slidably sleeved on the surface of the support rods (19). The top of the support sleeves (20) is fixedly connected to the bottom of the insulated box (1). A control mechanism (15) is fixedly connected to the right side of the bottom of the insulated box (1), and the control mechanism (15) includes a mounting plate (151). The bottom of the mounting plate (151) is fixedly connected to a sleeve plate (16), which is slidably sleeved on the surface of the reciprocating screw (8). The top of the sleeve (16) is fixedly connected to a positioning rod (17), and the movable sleeve (9) is slidably sleeved on the surface of the positioning rod (17). The output shaft of the motor (5) rotates forward and drives the reciprocating screw (8) to rotate through the second one-way bearing. The output shaft of the motor (5) rotates in reverse and drives the rotating rod (6) to rotate through the first one-way bearing.

2. The sand discharge device for a furnace for holding molten ceramic calcining sand according to claim 1, characterized in that: A time control switch (152) is fixedly connected to the right side of the mounting plate (151), and the output end of the time control switch (152) is electrically connected to the input end of the motor (5).

3. The sand discharge device for a furnace for holding molten ceramic calcining sand according to claim 1, characterized in that: The surface of the heat preservation box (1) is fixedly connected to a heat preservation mechanism (18), which includes a heat preservation cotton felt (181). An L-shaped groove (182) is provided on the left side of the bottom of the heat preservation box (1), and an L-shaped valve plate (183) is slidably connected inside the L-shaped groove (182).

4. The sand discharge device for a furnace for holding molten ceramic calcining sand according to claim 1, characterized in that: Rubber sleeves (21) are fixedly connected to the top and bottom of the left side of the support plate (4), and the surfaces of the rotating rod (6) and the reciprocating screw (8) are in contact with the inner wall of the rubber sleeves (21).

5. The sand discharge device for a furnace for holding molten ceramic calcining sand according to claim 2, characterized in that: A counterweight plate (22) is fixedly installed on the right side of the bottom of the insulation box (1) by bolts, and the top of the right side of the support plate (4) is fixedly connected to the surface of the mounting plate (151) by a connecting plate.

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