Foundry sand drying device
By using a drive assembly to periodically oscillate the collecting box and the diffusion box in the foundry sand drying device, the problems of uneven drying and low efficiency of foundry sand in microwave drying equipment are solved, and uniform drying and efficiency improvement of foundry sand are achieved.
Patent Information
- Application Number
- CN202423041179.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing microwave drying equipment suffers from uneven drying and low efficiency when processing foundry sand, especially in barrel-shaped containers where the heating effect is poor, leading to the need to extend the drying time.
A foundry sand drying device was designed. The drive component drives the crankshaft to make the collecting box and the diffusion box oscillate periodically. Combined with microwave drying, the foundry sand is collected and diffused multiple times, which improves the uniformity and efficiency of drying.
This method achieves uniform drying of foundry sand, shortens drying time, improves drying efficiency, and avoids material residue.
Smart Images
Figure CN223670155U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to dry technical field, concretely is a kind of foundry sand drying device. BACKGROUND
[0002] Foundry sand is stored for standby after dry regeneration or wet regeneration, to ensure the dryness when using again, it is often dried by microwave drying equipment.
[0003] High-frequency electromagnetic wave generated when microwave drying equipment works can make water molecules in material move violently, generate heat, so as to realize the rapid drying of foundry sand, this drying method has the characteristics of fast heating speed, high thermal efficiency, but foundry sand is generally placed by barrel container, internal heating effect is poor, leading to uneven dryness inside and outside, want to guarantee dryness and need to lengthen drying treatment time.
[0004] To solve the above problems, a kind of foundry sand drying device is presented. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a kind of foundry sand drying device, can improve the uniformity and efficiency of drying treatment, to solve the problems presented in the above background technique.
[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of foundry sand drying device, including outer box body, the inside fixed mounting of outer box body has inner box body, the inside rotation mounting of inner box body has a pair of crankshafts by rotating seat, the vertical direction between the crankshafts is provided with a number of folding boxes and a number of diffusion boxes, the diffusion box is located between folding box, the both sides of folding box and diffusion box are fixedly installed with sleeve seat, the sleeve seat is rotationally assembled with the crankshaft of same side, the lower end of crankshaft extends inner box body, the inside installation of outer box body is used for the driving assembly for rotating crankshaft, the upper side of outer box body is fixedly installed with the feeding hopper for being connected with the upper end of inner box body, the lower side of outer box body is fixedly installed with the discharge pipe for being connected with the lower end of inner box body.
[0007] Specifically, the driving assembly includes synchronous wheel, synchronous belt and reduction motor, the inside fixed mounting of outer box body has reduction motor, the lower end of crankshaft is fixedly installed with synchronous belt, the synchronous belt is sleeved with synchronous belt, the output end of reduction motor is connected with one of crankshafts.
[0008] Further, the discharge pipe is located at the inner side of synchronous belt, the diameter of synchronous wheel is greater than the outer diameter of discharge pipe.
[0009] Specifically, the number of folding box is at least three along the vertical direction evenly distributed.
[0010] Specific, the bottom of the collection box is downwardly concave cone, and the bottom center of the collection box is provided with a first through hole.
[0011] Specific, the bottom of the diffusion box is upwardly convex cone, and the circumference side of the diffusion box is uniformly provided with a second through hole.
[0012] Further, the inner side bottom of the collection box and the diffusion box is fixedly installed with a baffle, the baffle is circumferentially uniformly distributed with at least three layers, and each layer of the baffle is arranged in a staggered manner.
[0013] Further, the diameter of the collection box is greater than that of the diffusion box.
[0014] Specific, the bottom of the inner box is downwardly concave to form a lower vertebral body, and the end of the discharge pipe away from the inner box is lower than the end close to the inner box.
[0015] Specific, the upper side of the outer box is fixedly installed with a discharge pipe for communicating with the upper end of the inner box, and the lower end of the feeding hopper is installed with a one-way valve.
[0016] Compared with the prior art, the beneficial effects of the utility model are that: through the two crankshafts rotating of the driving assembly, the collection box and the diffusion box can be circumferentially swung with a half period difference, the casting sand in the falling process is collected and diffused for multiple times, and microwave drying treatment is simultaneously carried out, so that the uniformity and drying efficiency of the drying treatment can be improved. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the structure schematic front view of the utility model;
[0018] Figure 2 It is the structure schematic sectional view of the inner box of the utility model;
[0019] Figure 3 It is the structure schematic sectional view of the collection box of the utility model;
[0020] Figure 4 It is the structure schematic sectional view of the diffusion box of the utility model.
[0021] In the drawing: 1 outer box, 2 driving assembly, 21 synchronous wheel, 22 synchronous belt, 23 speed reducer motor, 3 inner box, 4 feeding hopper, 5 crankshaft, 6 sleeve seat, 7 collection box, 8 diffusion box, 9 rotating seat, 10 discharge pipe, 11 first through hole, 12 baffle, 13 second through hole, 14 one-way valve, 15 discharge pipe. DETAILED DESCRIPTION
[0022] 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 of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0023] Please refer to Figure 1 and Figure 2 The utility model provides a kind of casting sand drying device, including outer box 1, inner box 3 is fixedly installed in the inside of outer box 1, outer box 1 and inner box 3 form equipment cavity, equipment cavity inside installation microwave generator etc.
[0024] The inside of inner box 3 is rotatably installed with a pair of crankshafts 5 by rotating seat 9, the crankshafts 5 are vertically arranged, and a plurality of folding boxes 7 and a plurality of diffusion boxes 8 are arranged between the crankshafts 5 in the vertical direction. The diffusion boxes 8 are located between the folding boxes 7, and the folding boxes 7 and the diffusion boxes 8 are fixedly installed with sleeve seats 6 on both sides. The sleeve seats 6 are rotatably assembled with the crankshafts 5 on the same side. The lower ends of the crankshafts 5 extend out of the inner box 3. The outer box 1 is internally provided with a driving assembly 2 for rotating the crankshafts 5. When the driving assembly 2 is working, it can simultaneously rotate the two crankshafts 5 in the same direction, thereby rotating the folding boxes 7 and the diffusion boxes 8 through the sleeve seats 6. The circumferential swing period of the folding boxes 7 and the diffusion boxes 8 is half a period, i.e., when the folding boxes 7 swing to the right side, the diffusion boxes 8 swing to the left side, and when the folding boxes 7 swing to the front side, the diffusion boxes 8 swing to the back side.
[0025] The upper side of the outer box 1 is fixedly installed with a feed hopper 4 for communicating with the upper end of the inner box 3. The lower side of the outer box 1 is fixedly installed with a discharge pipe 10 for communicating with the lower end of the inner box 3. The feed hopper 4 is used to introduce the casting sand into the uppermost folding box 7 and move it downward with the folding boxes 7 and the diffusion boxes 8 for multiple folding and diffusion, and finally discharge it from the discharge pipe 10.
[0026] As shown in Figure 2 , the driving assembly 2 includes a synchronous wheel 21, a synchronous belt 22, and a reduction motor 23. The reduction motor 23 is fixedly installed inside the outer box 1. The lower ends of the crankshafts 5 are fixedly installed with the synchronous belts 22. The synchronous belts 22 are sleeved between the synchronous belts 22. The output end of the reduction motor 23 is connected with one of the crankshafts 5. When the reduction motor 23 rotates one of the crankshafts 5, the other crankshaft 5 can be synchronously rotated through the transmission of the synchronous wheel 21 and the synchronous belt 22, thereby providing synchronous rotating power for the crankshafts 5.
[0027] The discharge pipe 10 is located at the inner side of the synchronous belt 22, and the diameter of the synchronous wheel 21 is greater than the outer diameter of the discharge pipe 10; thus, the interference of the component installation and setting can be avoided, the power supply is not affected, and the discharge of the casting sand is not affected.
[0028] Specifically, the number of the collection boxes 7 is at least three which are evenly distributed along the vertical direction, and the diffusion boxes 8 are located between the collection boxes 7; thus, the number of times of the collection and diffusion of the casting sand can meet the drying requirement, and the lowermost collection box 7 is beneficial to the centralized discharge of the material.
[0029] As shown in Figure 3 , the bottom of the collection box 7 is a downwardly recessed cone, and a first through hole 11 is formed at the center of the bottom of the collection box 7; thus, the casting sand can make a circular motion in the collection box 7, gradually move to the center, and finally be discharged downwardly from the first through hole 11.
[0030] As shown in Figure 4 , the bottom of the diffusion box 8 is an upwardly protruding cone, and second through holes 13 are uniformly formed at the circumferential side of the diffusion box 8; thus, the casting sand can make a circular motion in the collection box 7, gradually move to the outer periphery, and finally be uniformly discharged from the second through holes 13.
[0031] The inner bottom of the collection box 7 and the diffusion box 8 is fixedly installed with a baffle 12, the baffle 12 is circumferentially and uniformly distributed with at least three layers, and the baffles 12 of each layer are arranged in a staggered manner; the baffle 12 is used for delaying the moving speed of the casting sand to the center or to the outer periphery, prolonging the residence time of the casting sand in the collection box 7 and the diffusion box 8, and ensuring the drying time.
[0032] In addition, the diameter of the collection box 7 is greater than that of the diffusion box 8, so as to comprehensively collect the casting sand scattered from the outer periphery of the diffusion box 8, and ensure the collection effect.
[0033] In order to improve the fullness of the discharge, the bottom of the box body 3 is downwardly recessed to form a lower cone, and the end of the discharge pipe 10 away from the inner box body 3 is lower than the end close to the inner box body 3; thus, the casting sand after the drying treatment can be discharged, and residual in the inner box body 3 is avoided.
[0034] Specifically, the upper side of the outer box body 1 is fixedly installed with a discharge pipe 15 for communicating with the upper end of the inner box body 3, and the lower ends of the discharge pipe 15 and the feeding hopper 4 are installed with one-way valves 14; the one-way valve 14 at the feeding hopper 4 allows the casting sand to only input downwardly, and the one-way valve 14 at the discharge pipe 15 allows the generated water vapor to only discharge upwardly.
[0035] The working principle of the embodiment is as follows:
[0036] The speed reduction motor 23 is electrically connected with the controller installed on the front side of the outer box body 1, and drives the assembly 2 to rotate the two crankshafts 5 simultaneously when working, so that the folding box 7 and the diffusion box 8 can perform circumferential swing according to a period difference of half; the foundry sand entering from the feeding hopper 4 is folded and diffused by the folding box 7 and the diffusion box 8 for multiple times, the foundry sand in the falling process can be fully dried by the microwave, and finally discharged through the discharge pipe 10; the generated water vapor is discharged through the exhaust pipe 15, then filtered by the externally connected bag-type dust collector, and the extracted material is recycled.
[0037] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0038] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.
Claims
1. A casting sand drying device, comprising an outer box body (1), an inner box body (3) is fixedly installed inside the outer box body (1), characterized in that: The inside of the inner box body (3) is rotatably provided with a pair of crankshafts (5) through the rotating seat (9), a plurality of folding boxes (7) and a plurality of diffusion boxes (8) are arranged along the vertical direction between the crankshafts (5), the diffusion boxes (8) are located between the folding boxes (7), sleeve seats (6) are fixedly installed on both sides of the folding boxes (7) and the diffusion boxes (8), the sleeve seats (6) are rotatably assembled with the crankshafts (5) on the same side, the lower ends of the crankshafts (5) extend out of the inner box body (3), the outer box body (1) is internally provided with a driving assembly (2) for rotating the crankshafts (5), the upper side of the outer box body (1) is fixedly provided with a feeding hopper (4) for communicating with the upper end of the inner box body (3), and the lower side of the outer box body (1) is fixedly provided with a discharge pipe (10) for communicating with the lower end of the inner box body (3).
2. A foundry sand drying apparatus as claimed in claim 1, wherein: The driving assembly (2) comprises a synchronous wheel (21), a synchronous belt (22) and a speed reducer motor (23), the speed reducer motor (23) is fixedly installed in the inner box body (3), the synchronous belt (22) is fixedly installed at the lower end of the crankshaft (5), the synchronous belt (22) is sleeved between the synchronous belts (22), and the output end of the speed reducer motor (23) is connected with one of the crankshafts (5).
3. A foundry sand drying apparatus as claimed in claim 2, wherein: The discharge pipe (10) is located on the inner side of the synchronous belt (22), and the diameter of the synchronous wheel (21) is greater than the outer diameter of the discharge pipe (10).
4. The casting sand drying apparatus of claim 1, wherein: The number of the folding boxes (7) is at least three which are evenly distributed along the vertical direction.
5. The casting sand drying apparatus of claim 1, wherein: The bottom of the folding box (7) is a downwardly recessed cone, and a first through hole (11) is formed at the center of the bottom of the folding box (7).
6. A foundry sand drying apparatus as defined in claim 1, wherein: The bottom of the diffusion box (8) is an upwardly protruding cone, and a second through hole (13) is uniformly formed on the circumferential side of the diffusion box (8).
7. A foundry sand drying apparatus as defined in claim 1, wherein: The inner bottom of the folding box (7) and the diffusion box (8) is fixedly provided with a baffle (12), the baffle (12) is circumferentially and uniformly distributed with at least three layers, and each layer of the baffle (12) is arranged in a staggered manner.
8. A foundry sand drying apparatus as defined in claim 1, wherein: The diameter of the folding box (7) is greater than that of the diffusion box (8).
9. A foundry sand drying apparatus as defined in claim 1, wherein: The bottom of the inner box body (3) is recessed downward to form a lower vertebral body, and the end of the discharge pipe (10) away from the inner box body (3) is lower than the end close to the inner box body (3).
10. A foundry sand drying apparatus as defined in claim 1, wherein: The upper side of the outer box body (1) is fixedly provided with an exhaust pipe (15) for communicating with the upper end of the inner box body (3), and the lower ends of the feeding hopper (4) and the exhaust pipe (15) are provided with one-way valves (14).