Vertical drying kiln for calcium carbide furnace raw material

Abstract

The application discloses a vertical drying kiln for calcium carbide furnace raw materials and belongs to the technical field of calcium carbide furnace raw material drying, which comprises a kiln body, a feeding pipe is fixedly installed above the kiln body, a feeding hopper is fixedly installed above the feeding pipe, a third electromagnetic valve is fixedly installed at the central position of the feeding pipe, an air inlet pipe is arranged on one side of the kiln body, an air outlet pipe is fixedly installed on the side, away from the air inlet pipe, of the kiln body, a mesh cylinder is fixedly installed on the inner side of the kiln body, a plurality of supporting legs are arranged below the kiln body, a stirring and cooling structure is arranged at the lower position of the kiln body, and the air inlet pipe and the kiln body are connected through a heating and filtering structure. The stirring and cooling structure can be used to stir the calcium carbide furnace raw materials in the mesh cylinder through the cooperation of the second motor and the second stirring blade when needed, so that the drying is more uniform, the working requirement is better met, and the working capacity of the drying kiln is improved.

Description

Technical Field

[0001] This invention belongs to the field of calcium carbide furnace raw material drying technology, specifically relating to a vertical drying kiln for calcium carbide furnace raw materials. Background Technology

[0002] The calcium carbide furnace is the core device that uses electric arc and resistance heating to react quicklime with carbonaceous raw materials to produce calcium carbide in a high-temperature environment above 2000℃. Its degree of enclosure is classified into three types: open furnace, semi-enclosed furnace, and enclosed furnace. The equipment consists of six core systems: furnace body, electrode system, feeding device, cooling system, etc., and employs an intelligent electrical control system to maintain three-phase power balance and monitor process parameters.

[0003] Existing vertical drying kilns for calcium carbide furnace raw materials are prone to uneven drying and cannot cool down the dried raw materials, thus reducing the working capacity of the drying kiln. Furthermore, they cannot increase the temperature of the hot air used for drying when needed, and cannot block impurities that may be present in the hot air, thereby reducing the practicality of the drying kiln. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides a vertical drying kiln for calcium carbide furnace raw materials, characterized by high working capacity and strong practicality.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a vertical drying kiln for calcium carbide furnace raw materials, comprising a kiln body, a feed pipe fixedly installed above the kiln body, a feed hopper fixedly installed above the feed pipe, a third solenoid valve fixedly installed near the center of the feed pipe, an air inlet pipe provided on one side of the kiln body, an air outlet pipe fixedly installed on the side of the kiln body away from the air inlet pipe, a mesh cylinder fixedly installed on the inner side of the kiln body, multiple support legs provided below the kiln body, a stirring and cooling structure provided near the lower part of the kiln body, and the air inlet pipe connected to the kiln body through a heating and filtering structure; The stirring and cooling structure includes a support frame. The support frame is fixedly installed between the kiln body, the mesh cylinder, and multiple support legs. A second motor is fixedly installed on the inner side of the support frame. Multiple second stirring blades are fixedly installed on the outer side of the output end of the second motor and on the inner side of the mesh cylinder. A conveying pipe is fixedly installed on the top of the support frame and on one side of the second motor. A second solenoid valve is fixedly installed near the center of the conveying pipe. A cooling component is fixedly connected to the bottom of the conveying pipe.

[0006] Preferably, the cooling component includes a thermally conductive aluminum shell, which is fixedly installed on the inner side of the support frame and below the conveying pipe. A discharge pipe is fixedly installed on one side of the thermally conductive aluminum shell, and a first solenoid valve is fixedly installed near the center of the discharge pipe.

[0007] Preferably, multiple fans are fixedly installed on the inner side of the support frame and below the thermally conductive aluminum shell.

[0008] Preferably, a first motor is fixedly installed on one side of the support frame, and a plurality of first stirring blades are fixedly installed on the outer side of the output end of the first motor and on the inner side of the heat-conducting aluminum shell.

[0009] Preferably, the heating and filtering structure includes a connecting cylinder, the connecting cylinder is fixedly installed on the side of the air inlet pipe near the kiln body, a connecting pipe is fixedly installed between the connecting cylinder and the kiln body, and multiple electric heating rods are fixedly installed on the inner side of the connecting cylinder.

[0010] Preferably, a filter screen is fixedly installed on the inner side of the connecting cylinder and above the plurality of heating rods.

[0011] Preferably, a third motor is fixedly installed above the connecting cylinder, and a cleaning brush is fixedly installed on the side of the output end of the third motor near the filter screen.

[0012] Preferably, the connecting cylinder is threaded onto the side of the kiln body and above the connecting pipe by means of a threaded block.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up a stirring and cooling structure, the present invention can stir the calcium carbide furnace raw materials in the mesh cylinder when needed through the cooperation of a second motor and a second stirring blade, so as to dry them more evenly, better meet the needs of the work, and thus improve the working capacity of the drying kiln.

[0014] 2. By setting up a stirring and cooling structure, the present invention can cool down the dried calcium carbide furnace raw materials when needed through the cooperation of heat-conducting aluminum shell and fan, thereby reducing the inconvenience of subsequent work and improving the working capacity of the drying kiln.

[0015] 3. By setting up a heating and filtering structure, the present invention can increase the temperature of the hot air used for drying when needed by cooperating with structures such as electric heating rods, thereby better meeting the needs of drying work. In addition, the filter screen can block impurities that may exist in the hot air, thereby reducing the possibility of adverse effects on the work and improving the practicality of the drying kiln. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention; Figure 2 This is a three-dimensional sectional view of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the stirring and cooling structure of the present invention; Figure 4 This is a three-dimensional cross-sectional view of the heating and filtering structure of the present invention.

[0017] In the diagram: 1. Feed hopper; 2. Air outlet pipe; 3. Mesh cylinder; 4. Stirring and cooling structure; 41. Support frame; 42. Cooling component; 421. Discharge pipe; 422. First solenoid valve; 423. Fan; 424. First stirring blade; 425. Thermally conductive aluminum shell; 426. First motor; 43. Second solenoid valve; 44. Conveying pipe; 45. Second motor; 46. Second stirring blade; 5. Support leg; 6. Heating and filtering structure; 61. Connecting cylinder; 62. Heating rod; 63. Connecting pipe; 64. Filter screen; 65. Threaded block; 66. Third motor; 67. Cleaning brush; 7. Air inlet pipe; 8. Kiln body; 9. Third solenoid valve; 10. Feed pipe. Detailed Implementation

[0018] 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.

[0019] Example 1 Please see Figure 1-4 The present invention provides the following technical solution: a vertical drying kiln for calcium carbide furnace raw materials, including a kiln body 8, a feed pipe 10 fixedly installed above the kiln body 8, a feed hopper 1 fixedly installed above the feed pipe 10, a third solenoid valve 9 fixedly installed near the center of the feed pipe 10, an air inlet pipe 7 provided on one side of the kiln body 8, an air outlet pipe 2 fixedly installed on the side of the kiln body 8 away from the air inlet pipe 7, a mesh cylinder 3 fixedly installed on the inner side of the kiln body 8, multiple support legs 5 provided below the kiln body 8, a stirring and cooling structure 4 provided near the lower part of the kiln body 8, and the air inlet pipe 7 and the kiln body 8 are connected by a heating and filtering structure 6. The stirring and cooling structure 4 includes a support frame 41. The support frame 41 is fixedly installed between the kiln body 8, the mesh cylinder 3 and multiple support legs 5. A second motor 45 is fixedly installed on the inner side of the support frame 41. Multiple second stirring blades 46 are fixedly installed on the outer side of the output end of the second motor 45 and on the inner side of the mesh cylinder 3. A conveying pipe 44 is fixedly installed on the top of the support frame 41 and on one side of the second motor 45. A second solenoid valve 43 is fixedly installed near the center of the conveying pipe 44. A cooling component 42 is fixedly connected to the bottom of the conveying pipe 44.

[0020] Specifically, the cooling component 42 includes a heat-conducting aluminum shell 425. The heat-conducting aluminum shell 425 is fixedly installed inside the support frame 41 and below the conveying pipe 44. A discharge pipe 421 is fixedly installed on one side of the heat-conducting aluminum shell 425. A first solenoid valve 422 is fixedly installed near the center of the discharge pipe 421. By adopting the above technical solution, the heat on the dried calcium carbide furnace raw material can be discharged when needed through the cooperation of the heat-conducting aluminum shell 425 and other structures, thereby cooling the dried calcium carbide furnace raw material to a certain extent and reducing the inconvenience of subsequent work.

[0021] Specifically, multiple fans 423 are fixedly installed on the inner side of the support frame 41 and below the heat-conducting aluminum shell 425. By adopting the above technical solution, the drying kiln can blow air onto the heat-conducting aluminum shell 425 through each fan 423, thereby accelerating the heat export speed and better meeting the needs of the work.

[0022] Specifically, a first motor 426 is fixedly installed on one side of the support frame 41. Multiple first stirring blades 424 are fixedly installed on the outer side of the output end of the first motor 426 and on the inner side of the heat-conducting aluminum shell 425. By adopting the above technical solution, the raw materials of the calcium carbide furnace can be stirred by the cooperation of the first motor 426 and the first stirring blades 424, so that the cooling is more uniform.

[0023] In this embodiment, when a vertical drying kiln is needed to dry the calcium carbide furnace raw materials, the operator connects the air inlet pipe 7 to the external hot air facility, opens the third solenoid valve 9, and feeds the calcium carbide furnace raw materials into the feed hopper 1 and feed pipe 10. The raw materials then fall into the mesh cylinder 3 inside the kiln body 8. Hot air is then sent in through the air inlet pipe 7, and the hot air enters the kiln body 8, passes through the mesh cylinder 3, and comes into contact with the calcium carbide furnace raw materials to dry them. The second motor 45 in the stirring and cooling structure 4 is started, which drives each second stirring blade 46 to rotate, thereby stirring the calcium carbide furnace raw materials during drying to make the drying more uniform. The hot air and evaporated water are discharged from the air outlet pipe 2 after use.

[0024] After drying is completed, the hot air input is stopped, the second solenoid valve 43 is opened, and the calcium carbide furnace raw material is discharged through the conveying pipe 44 into the heat-conducting aluminum shell 425 in the cooling component 42. The fans 423 and the first motor 426 on one side of the support frame 41 are started. The heat-conducting aluminum shell 425 conducts heat out of the calcium carbide furnace raw material, thereby cooling it down. The fans 423 blow air onto the heat-conducting aluminum shell 425, thereby accelerating the heat dissipation speed. The first motor 426 drives the first stirring blades 424 to stir the calcium carbide furnace raw material, thereby making its cooling more uniform. Then the first solenoid valve 422 is opened, and the cooled calcium carbide furnace raw material is discharged through the discharge pipe 421. The work is completed, and the support leg 5 has played a supporting role.

[0025] Example 2 The difference between this embodiment and embodiment 1 is that the heating and filtering structure 6 includes a connecting cylinder 61. The connecting cylinder 61 is fixedly installed on the side of the air inlet pipe 7 near the kiln body 8. A connecting pipe 63 is fixedly installed between the connecting cylinder 61 and the kiln body 8. Multiple electric heating rods 62 are fixedly installed on the inner side of the connecting cylinder 61. By adopting the above technical solution, the temperature of the hot air used for drying can be increased by the cooperation of the electric heating rods 62 and other structures when needed, so as to better meet the needs of drying work.

[0026] Specifically, a filter screen 64 is fixedly installed on the inner side of the connecting cylinder 61 and above the multiple heating rods 62. By adopting the above technical solution, the filter screen 64 can block impurities that may exist in the hot air, thereby reducing the possibility of adverse effects on the work.

[0027] Specifically, a third motor 66 is fixedly installed above the connecting cylinder 61, and a cleaning brush 67 is fixedly installed on the side of the output end of the third motor 66 near the filter screen 64. By adopting the above technical solution, the drying kiln can clean the surface of the filter screen 64 through the cooperation of the third motor 66 and the cleaning brush 67, thereby preventing the filter screen 64 from clogging.

[0028] Specifically, a threaded block 65 is installed on the side of the connecting cylinder 61 close to the kiln body 8 and above the connecting pipe 63. By adopting the above technical solution, the staff can unscrew the threaded block 65 to remove the impurities above the filter screen 64 when needed, reducing the inconvenience of the staff.

[0029] In this embodiment, when hot air is supplied, it passes through the air inlet pipe 7 and enters the connecting cylinder 61 in the heating and filtering structure 6. The filter screen 64 filters any impurities that may be present in the hot air. The third motor 66 is started, which drives the cleaning brush 67 to rotate, thereby cleaning the surface of the filter screen 64 and preventing it from becoming clogged. If it is necessary to increase the temperature of the hot air, each heating rod 62 can be started to heat the hot air, thereby increasing the temperature of the hot air and better meeting the needs of the drying work. Then, the hot air passes through the connecting pipe 63 and enters the kiln body 8. The operator can periodically unscrew the threaded block 65 to remove the impurities above the filter screen 64.

[0030] The working principle and usage process of this invention are as follows: When a vertical drying kiln is needed to dry the raw materials of the calcium carbide furnace, the operator connects the air inlet pipe 7 to the external hot air facility, opens the third solenoid valve 9, and feeds the raw materials of the calcium carbide furnace through the feed hopper 1 and feed pipe 10. Then the raw materials fall into the mesh cylinder 3 inside the kiln body 8. Hot air is then sent in through the air inlet pipe 7. The hot air enters the kiln body 8, passes through the mesh cylinder 3, and comes into contact with the raw materials of the calcium carbide furnace to dry them. The second motor 45 in the stirring and cooling structure 4 is started, thereby driving each second stirring blade 46 to rotate, thereby stirring the raw materials of the calcium carbide furnace being dried, making the drying more uniform. The hot air and evaporated water are discharged from the air outlet pipe 2 after use.

[0031] After drying is completed, the hot air input is stopped, the second solenoid valve 43 is opened, and the calcium carbide furnace raw material is discharged through the conveying pipe 44 into the heat-conducting aluminum shell 425 in the cooling component 42. The fans 423 and the first motor 426 on one side of the support frame 41 are started. The heat-conducting aluminum shell 425 conducts heat out of the calcium carbide furnace raw material, thereby cooling it down. The fans 423 blow air onto the heat-conducting aluminum shell 425, thereby accelerating the heat dissipation speed. The first motor 426 drives the first stirring blades 424 to stir the calcium carbide furnace raw material, thereby making its cooling more uniform. Then the first solenoid valve 422 is opened, and the cooled calcium carbide furnace raw material is discharged through the discharge pipe 421. The work is completed, and the support leg 5 has played a supporting role.

[0032] When hot air is introduced, it passes through the air inlet pipe 7 and enters the connecting cylinder 61 in the heating and filtering structure 6. The filter screen 64 filters out any impurities that may be present in the hot air. The third motor 66 is started, which drives the cleaning brush 67 to rotate, thereby cleaning the surface of the filter screen 64 and preventing it from becoming clogged. If it is necessary to increase the temperature of the hot air, each heating rod 62 can be started to heat the hot air, thereby increasing the temperature of the hot air and better meeting the needs of the drying work. Then the hot air passes through the connecting pipe 63 and enters the kiln body 8. The operator can periodically unscrew the threaded block 65 to remove the impurities above the filter screen 64.

[0033] 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 vertical drying kiln for calcium carbide furnace raw materials, comprising a kiln body (8), wherein a feed pipe (10) is fixedly installed above the kiln body (8), a feed hopper (1) is fixedly installed above the feed pipe (10), a third solenoid valve (9) is fixedly installed near the center of the feed pipe (10), an air inlet pipe (7) is provided on one side of the kiln body (8), an air outlet pipe (2) is fixedly installed on the side of the kiln body (8) away from the air inlet pipe (7), a mesh cylinder (3) is fixedly installed on the inner side of the kiln body (8), and a plurality of support legs (5) are provided below the kiln body (8), characterized in that: A stirring and cooling structure (4) is provided at the lower part of the kiln body (8), and the air inlet pipe (7) is connected to the kiln body (8) through a heating and filtering structure (6); The stirring and cooling structure (4) includes a support frame (41). The support frame (41) is fixedly installed between the kiln body (8), the mesh cylinder (3) and multiple support legs (5). A second motor (45) is fixedly installed on the inner side of the support frame (41). Multiple second stirring blades (46) are fixedly installed on the outer side of the output end of the second motor (45) and on the inner side of the mesh cylinder (3). A conveying pipe (44) is fixedly installed on the top of the support frame (41) and on one side of the second motor (45). A second solenoid valve (43) is fixedly installed near the center of the conveying pipe (44). A cooling component (42) is fixedly connected below the conveying pipe (44).

2. The vertical drying kiln for calcium carbide furnace raw materials according to claim 1, characterized in that: The cooling component (42) includes a thermally conductive aluminum shell (425). The thermally conductive aluminum shell (425) is fixedly installed on the inner side of the support frame (41) and below the conveying pipe (44). A discharge pipe (421) is fixedly installed on one side of the thermally conductive aluminum shell (425). A first solenoid valve (422) is fixedly installed near the center of the discharge pipe (421).

3. The vertical drying kiln for calcium carbide furnace raw materials according to claim 2, characterized in that: Multiple fans (423) are fixedly installed on the inner side of the support frame (41) and below the thermally conductive aluminum shell (425).

4. The vertical drying kiln for calcium carbide furnace raw materials according to claim 3, characterized in that: A first motor (426) is fixedly installed on one side of the support frame (41), and multiple first stirring blades (424) are fixedly installed on the outer side of the output end of the first motor (426) and on the inner side of the heat-conducting aluminum shell (425).

5. A vertical drying kiln for calcium carbide furnace raw materials according to claim 1, characterized in that: The heating and filtering structure (6) includes a connecting cylinder (61). The connecting cylinder (61) is fixedly installed on the side of the air inlet pipe (7) near the kiln body (8). A connecting pipe (63) is fixedly installed between the connecting cylinder (61) and the kiln body (8). Multiple electric heating rods (62) are fixedly installed on the inner side of the connecting cylinder (61).

6. A vertical drying kiln for calcium carbide furnace raw materials according to claim 5, characterized in that: A filter screen (64) is fixedly installed inside the connecting cylinder (61) and above the plurality of heating rods (62).

7. A vertical drying kiln for calcium carbide furnace raw materials according to claim 6, characterized in that: A third motor (66) is fixedly installed above the connecting cylinder (61), and a cleaning brush (67) is fixedly installed on the side of the output end of the third motor (66) near the filter screen (64).

8. A vertical drying kiln for calcium carbide furnace raw materials according to claim 6, characterized in that: The connecting cylinder (61) is located on the side near the kiln body (8) and above the connecting pipe (63), and a threaded block (65) is installed by threads.

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