Continuous vacuum drying equipment for solution containing heavy metal

Abstract

The utility model relates to the technical field of heavy metal recovery, and discloses continuous vacuum drying equipment for solution containing heavy metal, which comprises a vacuum dryer main body and a blanking bin, a conveyor is arranged in the vacuum dryer main body, and a conveying belt is arranged on the surface of the conveyor. A first scraping strip and a second scraping strip are arranged on one side of the conveying belt, the first scraping strip and the second scraping strip are both fixedly connected with the conveyor, a feeding assembly is arranged on one side of the vacuum dryer body, and end covers are arranged at the two ends of the vacuum dryer body. The vacuum drying machine has the advantages that a solution is conveyed through the conveyor, the vacuum drying machine body can continuously dry the solution, when the conveyor belt of the conveyor sequentially reaches the first scraping strip and the second scraping strip, the first scraping strip and the second scraping strip can be attached to the conveyor belt, materials attached to the surface of the conveyor belt can be scraped away, cleaning is convenient, and the production efficiency is improved. The two ends of the vacuum dryer body can be sealed through the end covers.

Description

Technical Field

[0001] The utility model relates to the technical field of heavy metal recovery, in particular to continuous vacuum drying equipment for heavy metal-containing solutions. Background Art

[0002] Metal recycling refers to the separation of useful substances from scrap metals through physical or mechanical processing to become recycled products. It is an industrial chain from recycling, disassembly to recycling. When recycling heavy metal solutions, it is often necessary to use continuous vacuum drying equipment to dry them. The drying process is completed under vacuum and low temperature conditions, so that heat-sensitive materials will not be denatured and there is no chance of contamination.

[0003] Its application number is "CN202123322209.4". The "belt-type vacuum continuous drying device" disclosed therein "comprises a drying box, a feed hopper is provided on one side of the upper end surface of the drying box, a discharge hole is provided on one side surface of the drying box, and a lower hopper is provided in the discharge hole; a drying belt is provided inside the drying box, and rotating wheels are provided at both ends of the drying belt, and the two rotating wheels are rotatably connected to the inner wall of the drying box through rotating shafts respectively, and the drying belt is rotatably sleeved on the two rotating wheels, and a driving motor is provided on the front side of the drying box, and the output end of the driving motor is connected to the rotating shaft of one of the rotating wheels; one end of the drying belt is located below the feed hopper, and the other end of the drying belt is located above the lower hopper; a heating plate is provided directly above the drying belt". In the utility model, a drying belt is arranged inside a drying box, and a heating plate is arranged at the upper end of the drying belt. When in use, grains to be dried are added from a feed hopper and dropped onto the drying belt. The rotating wheel rotates so that the grains flow from one end of the drying belt to the other end and out of a lower hopper. In this process, the heating plate continuously heats the grains on the drying belt to achieve the purpose of drying.

[0004] However, the above method still has the following defects: when the material is conveyed by the drying belt, the material is easy to condense on the surface of the drying belt after drying, which is not convenient for cleaning. At the same time, it is difficult to ensure the sealing of the drying box during the process of loading and unloading materials, and it is not convenient to crush the dried materials, which easily leads to blockage of the materials. Utility Model Content

[0005] The utility model aims to provide a continuous vacuum drying device for heavy metal solution, so as to solve the problem in the above background technology that the material is easy to condense on the surface of the drying belt after drying, which is inconvenient to clean.

[0006] The utility model provides the following technical scheme: a continuous vacuum drying device containing heavy metal solution, comprising a vacuum drying machine body and a feeding bin, wherein a conveyor is installed inside the vacuum drying machine body, a conveyor belt is arranged on the surface of the conveyor, a scraper bar 1 and a scraper bar 2 are respectively arranged on one side of the conveyor belt, and the scraper bar 1 and the scraper bar 2 are both fixedly connected to the conveyor, a feeding assembly is arranged on one side of the vacuum drying machine body, end covers are arranged at both ends of the vacuum drying machine body, a feeding bin is arranged on one side of the bottom end of the vacuum drying machine body, a crushing shaft and a feeding screw are rotatably connected inside the feeding bin, one end of the crushing shaft is meshed with a worm wheel through a worm, the worm wheel is transmission-connected to the feeding screw through a V-belt, and a feeding assembly is arranged at the bottom end of the feeding bin.

[0007] As a preferred technical solution of the utility model, the feeding assembly includes a feeding pipe and a vertical pipe, the output end of the feeding pipe is fixedly connected to the vertical pipe, the output end of the vertical pipe is fixedly connected to a distribution pipe, the distribution pipe is located inside the vacuum dryer body, and a nozzle is provided on the surface of the distribution pipe.

[0008] As a preferred technical solution of the utility model, the feed pipe is fixedly connected to one side of the vacuum dryer body, and a flange is welded to the input end of the feed pipe, and the flange is located outside the vacuum dryer body.

[0009] As a preferred technical solution of the utility model, a plurality of crushing rods are fixedly provided on the surface of the crushing shaft, and the worm is fixedly connected to one end of the crushing shaft.

[0010] As a preferred technical solution of the utility model, a chassis is fixedly provided on one side of the lower silo, a motor is fixedly installed on the top of the chassis, the output shaft of the motor is connected to the worm, an inspection cover is provided on one side of the chassis, and the worm, worm wheel and V-belt are all located inside the chassis.

[0011] As an optimal technical solution of the utility model, the interior of the chassis is rotatably connected with pulley one and pulley two, pulley one is connected to one side of the worm wheel, pulley one is transmission connected to pulley two through a V-belt, one side of pulley two and one end of the feeding screw are respectively provided with bevel gear one and bevel gear two, and bevel gear one is meshingly connected with bevel gear two.

[0012] As a preferred technical solution of the utility model, the material discharge assembly includes a storage hopper, a discharge pipe and a stop valve. A discharge pipe is fixedly provided in the middle of the top of the storage hopper, the top of the discharge pipe is fixedly connected to one side of the bottom of the discharge bin, and a stop valve is fixedly connected to the middle of the bottom of the storage hopper.

[0013] As a preferred technical solution of the utility model, the discharge end of the stop valve is fixedly connected to a discharge hopper, and the middle part of the bottom end of the discharge hopper is fixedly connected to a discharge valve.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The continuous vacuum drying equipment for heavy metal solution conveys the solution through a conveyor, and the vacuum dryer body can continuously dry the solution. When the conveyor belt of the conveyor reaches the scraper bar 1 and the scraper bar 2 in turn, the scraper bar 1 and the scraper bar 2 can fit the conveyor belt, and the material attached to the surface of the conveyor belt can be scraped off, which is convenient for cleaning. The two ends of the vacuum dryer body can be closed by the end cover, and the feeding assembly and the unloading assembly can ensure the sealing of the vacuum dryer body during feeding and discharging, and prevent gas leakage.

[0016] 2. The continuous vacuum drying equipment for heavy metal solution can receive the dried material through the discharge bin, and can crush the material by driving the crushing shaft through the worm, so as to prevent the material from being blocked. Since the worm wheel is connected to the feeding screw through the V-belt, the worm can reduce the rotation speed of the feeding screw while driving the feeding screw to rotate through the worm wheel and the V-belt, and the feeding screw can input the material into the discharge assembly, so as to facilitate continuous discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural diagrams of the utility model;

[0018] Figure 2 This is the second structural diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the lower silo of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the feeding screw of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the feeding assembly of the utility model;

[0022] Figure 6 For this utility model Figure 3 A is an enlarged structural diagram of FIG.

[0023] In the figure: 1. Vacuum dryer body; 2. Conveyor; 3. Conveyor belt; 4. Scraper bar 1; 5. Scraper bar 2; 6. Feeding assembly; 601. Feeding pipe; 602. Vertical pipe; 603. Distribution pipe; 604. Nozzle; 605. Flange; 7. End cover; 8. Discharge bin; 9. Crushing shaft; 10. Crushing rod; 11. Feeding screw; 12. Worm; 13. Worm wheel; 14. Pulley 1; 15. V-belt; 16. Pulley 2; 17. Bevel gear 1; 18. Bevel gear 2; 19. Discharge assembly; 1901. Storage hopper; 1902. Discharge pipe; 1903. Stop valve; 1904. Discharge hopper; 1905. Discharge valve; 20. Chassis; 21. Motor. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0025] See also Figures 1 to 6 In the embodiment of the utility model, the continuous vacuum drying equipment containing heavy metal solution includes a vacuum drying machine body 1 and a lower bin 8. A conveyor 2 is installed inside the vacuum drying machine body 1. A conveyor belt 3 is provided on the surface of the conveyor 2. A scraper bar 1 4 and a scraper bar 2 5 are respectively provided on one side of the conveyor belt 3. The scraper bar 1 4 and the scraper bar 2 5 are both fixedly connected to the conveyor 2. The solution is transported by the conveyor 2, and the vacuum drying machine body 1 can vacuum dry it. When the conveyor belt 3 of the conveyor 2 reaches the scraper bar 1 4 and the scraper bar 2 5 in turn, the scraper bar 1 4 The scraper bar 2 5 can fit the conveyor belt 3 and scrape off the materials attached to the surface of the conveyor belt 3. A feeding assembly 6 is provided on one side of the vacuum dryer body 1. End covers 7 are provided at both ends of the vacuum dryer body 1. A lower bin 8 is provided on one side of the bottom end of the vacuum dryer body 1. A crushing shaft 9 and a feeding screw 11 are rotatably connected inside the lower bin 8. One end of the crushing shaft 9 is meshed with a worm gear 13 through a worm 12. The worm gear 13 is transmission-connected to the feeding screw 11 through a V-belt 15. A lower bin 8 is provided with a lower assembly 19 at the bottom end.

[0026] In this embodiment, preferably, the feeding assembly 6 includes a feeding pipe 601 and a standpipe 602, the output end of the feeding pipe 601 is fixedly connected to the standpipe 602, the output end of the standpipe 602 is fixedly connected to a distribution pipe 603, the distribution pipe 603 is located inside the vacuum dryer body 1, and a nozzle 604 is provided on the surface of the distribution pipe 603. The solution is transported through the feeding pipe 601, and the standpipe 602 can evenly transport the solution to the conveyor belt 3 through the distribution pipe 603 and the nozzle 604;

[0027] In this embodiment, preferably, the feed pipe 601 is fixedly connected to one side of the vacuum dryer body 1, and a flange 605 is welded to the input end of the feed pipe 601, and the flange 605 is located outside the vacuum dryer body 1, and the feed pipe 601 can be connected to the delivery pump through the flange 605;

[0028] In this embodiment, preferably, a plurality of crushing rods 10 are fixedly provided on the surface of the crushing shaft 9, and the worm 12 is fixedly connected to one end of the crushing shaft 9, and the crushing shaft 9 can crush the material through the crushing rods 10;

[0029] In this embodiment, preferably, a chassis 20 is fixedly provided on one side of the lower bin 8, a motor 21 is fixedly installed on the top of the chassis 20, the output shaft of the motor 21 is connected to the worm 12, an inspection cover is provided on one side of the chassis 20, the worm 12, the worm wheel 13 and the V-belt 15 are all located inside the chassis 20, and the chassis 20 can provide protection for the worm 12, the worm wheel 13 and the V-belt 15, and can support the motor 21, and the motor 21 can drive the worm 12 to rotate;

[0030] In this embodiment, preferably, the inside of the chassis 20 is rotatably connected with a pulley 14 and a pulley 2 16, the pulley 14 is connected to one side of the worm wheel 13, the pulley 14 is connected to the pulley 2 16 through a V-belt 15, and one side of the pulley 2 16 and one end of the feeding screw 11 are respectively provided with a bevel gear 17 and a bevel gear 2 18, the bevel gear 17 is meshed with the bevel gear 2 18, the worm wheel 13 can drive the pulley 2 16 to rotate through the pulley 14 and the V-belt 15, and the pulley 2 16 can drive the feeding screw 11 to rotate through the bevel gear 17 and the bevel gear 2 18;

[0031] In this embodiment, preferably, the material discharge assembly 19 includes a storage hopper 1901, a discharge pipe 1902 and a stop valve 1903. The discharge pipe 1902 is fixedly provided in the middle of the top of the storage hopper 1901. The top of the discharge pipe 1902 is fixedly connected to one side of the bottom of the lower material bin 8. The middle of the bottom of the storage hopper 1901 is fixedly connected to the stop valve 1903. The crushed material inside the lower material bin 8 can be discharged into the storage hopper 1901 through the discharge pipe 1902. By closing the stop valve 1903, the storage hopper 1901 can temporarily store the material, which can ensure the sealing of the lower material bin 8.

[0032] In this embodiment, preferably, the discharge end of the stop valve 1903 is fixedly connected to the discharge hopper 1904, and the middle part of the bottom end of the discharge hopper 1904 is fixedly connected to the discharge valve 1905. By opening the stop valve 1903, the material can be transferred to the discharge hopper 1904, and by closing the stop valve 1903 and opening the discharge valve 1905, the material can be discharged.

[0033] When in use, the staff can first connect the feed pipe 601 to the delivery pump through the flange 605, and then deliver the heavy metal solution through the feed pipe 601, and the vertical pipe 602 can evenly deliver the solution to the conveyor belt 3 through the distribution pipe 603 and the nozzle 604, and then drive the conveyor belt 3 through the conveyor 2, and the vacuum dryer body 1 can continuously dry the heavy metal solution;

[0034] When the conveyor belt 3 of the conveyor 2 reaches the scraper bar 1 4 and the scraper bar 2 5 in turn, the scraper bar 1 4 and the scraper bar 2 5 can fit the conveyor belt 3, and can scrape off the materials attached to the surface of the conveyor belt 3, so as to clean it. It is not easy to produce residue on the surface of the conveyor belt 3. The end cover 7 can close the two ends of the vacuum dryer body 1. After the materials are dried, they can be input into the lower bin 8 by the conveyor 2. The staff drives the worm 12 through the motor 21, and the worm 12 drives the crushing shaft 9 to rotate. The crushing shaft 9 can crush the materials through the crushing rod 10 to prevent the materials from being blocked.

[0035] In this process, the worm wheel 13 can drive the pulley 2 16 to rotate through the pulley 1 14 and the V-belt 15, and the pulley 2 16 can drive the feeding screw 11 to rotate through the bevel gear 17 and the bevel gear 2 18, and can reduce the rotation speed of the feeding screw 11, and the feeding screw 11 can input the material into the storage hopper 1901 of the unloading assembly 19, and the storage hopper 1901 can guide the material into the discharge hopper 1904;

[0036] After the discharge hopper 1904 is fully loaded, the staff closes the stop valve 1903 and opens the discharge valve 1905 to discharge the material inside the discharge hopper 1904. After the material is discharged, the staff closes the discharge valve 1905 and opens the stop valve 1903 to ensure the sealing state of the lower bin 8 during discharge.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous vacuum drying device for heavy metal solution, comprising a vacuum drying machine body (1) and a lower material bin (8), characterized in that: A conveyor (2) is installed inside the vacuum dryer body (1), and a conveyor belt (3) is provided on the surface of the conveyor (2). A scraper bar (4) and a scraper bar (5) are respectively provided on one side of the conveyor belt (3), and the scraper bar (4) and the scraper bar (5) are both fixedly connected to the conveyor (2). A feeding assembly (6) is provided on one side of the vacuum dryer body (1), and end covers (7) are provided at both ends of the vacuum dryer body (1). A lower material bin (8) is provided on one side of the bottom end of the vacuum dryer body (1), and a crushing shaft (9) and a feeding screw (11) are rotatably connected inside the lower material bin (8), and one end of the crushing shaft (9) is meshedly connected to a worm wheel (13) through a worm (12), and the worm wheel (13) is transmission-connected to the feeding screw (11) through a V-belt (15). A lower material bin (8) is provided at the bottom end.

2. The continuous vacuum drying equipment for heavy metal-containing solutions according to claim 1, characterized in that: The feed assembly (6) comprises a feed pipe (601) and a vertical pipe (602), wherein the output end of the feed pipe (601) is fixedly connected to the vertical pipe (602), and the output end of the vertical pipe (602) is fixedly connected to a distribution pipe (603), wherein the distribution pipe (603) is located inside the vacuum dryer body (1), and a nozzle (604) is provided on the surface of the distribution pipe (603).

3. The continuous vacuum drying equipment for heavy metal-containing solutions according to claim 2, characterized in that: The feed pipe (601) is fixedly connected to one side of the vacuum dryer body (1); a flange (605) is welded to the input end of the feed pipe (601); and the flange (605) is located outside the vacuum dryer body (1).

4. The continuous vacuum drying equipment for heavy metal-containing solutions according to claim 1, characterized in that: A plurality of crushing rods (10) are fixedly arranged on the surface of the crushing shaft (9), and the worm (12) is fixedly connected to one end of the crushing shaft (9).

5. The continuous vacuum drying equipment for heavy metal-containing solutions according to claim 1, characterized in that: A chassis (20) is fixedly provided on one side of the lower material bin (8), a motor (21) is fixedly installed on the top of the chassis (20), an output shaft of the motor (21) is connected to the worm (12), an inspection cover is provided on one side of the chassis (20), and the worm (12), the worm wheel (13) and the V-belt (15) are all located inside the chassis (20).

6. The continuous vacuum drying equipment for heavy metal-containing solutions according to claim 5, characterized in that: A pulley 1 (14) and a pulley 2 (16) are rotatably connected inside the chassis (20), the pulley 1 (14) is connected to one side of the worm wheel (13), the pulley 1 (14) is transmission-connected to the pulley 2 (16) through a V-belt (15), one side of the pulley 2 (16) and one end of the feeding screw (11) are respectively provided with a bevel gear 1 (17) and a bevel gear 2 (18), the bevel gear 1 (17) is meshingly connected with the bevel gear 2 (18).

7. The continuous vacuum drying equipment for heavy metal-containing solutions according to claim 1, characterized in that: The material discharge assembly (19) comprises a storage hopper (1901), a discharge pipe (1902) and a stop valve (1903); a discharge pipe (1902) is fixedly provided in the middle of the top end of the storage hopper (1901); the top end of the discharge pipe (1902) is fixedly connected to one side of the bottom end of the material discharge bin (8); and a stop valve (1903) is fixedly connected in the middle of the bottom end of the storage hopper (1901).

8. The continuous vacuum drying equipment for heavy metal-containing solutions according to claim 7, characterized in that: The discharge end of the stop valve (1903) is fixedly connected to a discharge hopper (1904), and the middle of the bottom end of the discharge hopper (1904) is fixedly connected to a discharge valve (1905).

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