Method for rapidly cooling molten calcium carbide, drilling equipment and high-efficiency parallel drilling equipment

Abstract

The present invention belongs to the technical field of calcium carbide production, and specifically relates to a method for rapidly cooling molten calcium carbide, a punching device, and a high-efficiency parallel punching device. The method for rapidly cooling molten calcium carbide, during the cooling process, the fluid calcium carbide in the calcium carbide pot is punched by the punching device, so that after the fluid calcium carbide is cooled and solidified into a solid state, a calcium carbide weight with blind holes is formed. Punching holes can increase the heat dissipation area of ​​the fluid calcium carbide, improve the heat dissipation speed, and in a closed heat dissipation kiln, the fluid calcium carbide is prevented from splashing and causing damage to the outside, and there is an effective dust removal device to avoid pollution to the environment. According to the natural cooling method, the calcium carbide manufacturer needs to provide a large workshop area to provide space for calcium carbide cooling. After selecting this method, there is no need to increase the cooling workshop area, and when used in combination with a cooling kiln, it not only saves the floor space for cooling, but also recovers waste heat, and can also generate benefits for the calcium carbide manufacturer.

Description

Technical Field

[0001] The invention belongs to the technical field of calcium carbide production, and specifically relates to a method for quickly cooling molten calcium carbide, a drilling device and a high-efficiency parallel drilling device. Background Art

[0002] During the production process, the high-temperature calcium carbide in the calcium carbide pot needs to be cooled to form a solid calcium carbide mass. The common way to cool the calcium carbide mass is natural cooling. During the natural cooling process, the ambient temperature of the surrounding working environment is too high. According to the natural cooling method, the calcium carbide manufacturer needs to provide a large workshop area to provide space for calcium carbide cooling.

[0003] At the rate of 9 pots of calcium carbide per hour, it will take 60 hours to completely cool down under natural cooling. Each calcium carbide furnace requires at least 540 pots to achieve turnover, so calcium carbide manufacturers need to bear a large expenditure on calcium carbide pots.

[0004] At the same time, during the normal 60-hour natural cooling process, powdery waste will appear on the surface of the solid calcium carbide due to the effects of bubbles and moisture. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0006] To this end, one aspect of the present invention is to provide a method for quickly cooling molten calcium carbide, which can increase the heat dissipation rate, reduce the space occupied by cooling and the number of calcium carbide pots used, and reduce the scrap rate.

[0007] Another object of the present invention is to provide a piercing device that can facilitate piercing operations.

[0008] Another aspect of the present invention is to provide a parallel piercing device that can improve piercing efficiency.

[0009] A method for rapidly cooling molten calcium carbide. During the cooling process, the fluid calcium carbide in the calcium carbide pot is punched with a punching device, so that the fluid calcium carbide is cooled and solidified into a solid state, forming a calcium carbide weight with blind holes.

[0010] During the cooling process, the calcium carbide pot is placed in a closed heat dissipation kiln, which is equipped with a dust removal device; the punching operation refers to: punching a hole once every 30 to 40 minutes through the punching equipment, for a total of 5 to 8 times.

[0011] The blind holes include a central blind hole and circumferential blind holes. The central blind hole is located at the center of the carbide weight. There are at least two circumferential blind holes that are evenly distributed with the central blind hole as the center.

[0012] The cross-sectional shape of the blind hole is elliptical.

[0013] A hole-piercing device comprises a frame and a hole-piercing device, wherein the hole-piercing device comprises a driving oil cylinder, a hole-piercing column and a connecting frame, wherein the connecting frame is slidably connected to the frame, the hole-piercing column is fixedly connected to the connecting frame, and both ends of the driving oil cylinder are respectively fixedly connected or hinged to the frame and the connecting frame, and the hole-piercing operation is performed by moving the connecting frame and the hole-piercing column up and down through the extension and retraction of the driving oil cylinder.

[0014] The three hole-piercing devices are provided and arranged side by side; two hole-piercing columns are provided on the connecting frames in the hole-piercing devices at both ends.

[0015] The piercing column is an elliptical column, and the shape of the lower end of the piercing column is a flat cone.

[0016] The perforated column is provided with a heat dissipation blind hole, and a cooling joint connected to the heat dissipation blind hole is fixed on the upper end of the perforated column; the cooling joint is an air cooling joint, and an air inlet pipe and an air outlet pipe are connected to the air cooling joint.

[0017] The piercing column is detachably connected to the connecting frame; it also includes a manipulator, through which the piercing column is replaced; the manipulator includes a large arm, a small arm and a gripper, one end of the large arm is hinged to the frame, one end of the small arm is rotatably connected to the other end of the large arm, and the other end of the small arm is rotatably connected to the gripper; the gripper is a U-shaped card plate, and a corresponding convex edge is provided on the piercing column.

[0018] The invention comprises a hole-piercing device, wherein at least two hole-piercing devices are provided, and the two hole-piercing devices are arranged side by side.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Punching holes can increase the heat dissipation area of ​​the fluid calcium carbide and improve the heat dissipation speed; at the same time, the punching process can also play a "stirring" role and squeeze the lower layer of liquid up to further improve the heat dissipation effect.

[0021] 2. In a closed heat dissipation kiln, avoid splashing of fluid calcium carbide to cause external damage, and have an effective dust removal device to avoid pollution to the environment.

[0022] 3. According to the rate of 9 pots of calcium carbide produced by the calcium carbide furnace per hour, it will take 60 hours to completely cool down under natural cooling. Each calcium carbide furnace requires at least 540 pots to achieve turnover. After adopting this cooling method, according to actual records, it only takes 9 hours to cool the calcium carbide, that is, each calcium carbide furnace needs at least 81 pots to achieve turnover. This method can save calcium carbide manufacturers the expense of 2 calcium carbide pots. Based on the current calculation of 30,000 yuan per pot, it can save calcium carbide manufacturers at least 13.77 million yuan.

[0023] 4. According to the natural cooling method, calcium carbide manufacturers need to provide a large workshop area to provide space for calcium carbide cooling. After choosing this method, there is no need to increase the cooling workshop area, and combined with the cooling kiln, it not only saves cooling space, but also recovers waste heat, which can also generate benefits for calcium carbide manufacturers.

[0024] 5. During the conventional 60-hour natural cooling process, powdery waste will appear on the surface of solid calcium carbide due to the effects of bubbles and moisture. After using this cooling method, during the short cooling process of 9 hours in a closed environment, no powdery waste will appear on the surface of the calcium carbide, effectively reducing the scrap rate of calcium carbide.

[0025] 6. The entire drilling equipment is hydraulically driven and resistant to high temperatures, and can be used to drill holes in fluid calcium carbide. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the hole-piercing device of the present invention;

[0027] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0028] Figure 3 is a front view of the piercing device of the present invention;

[0029] Figure 4 is a side view of the piercing device of the present invention;

[0030] Figure 5 is a side view of the piercing device of the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the manipulator of the present invention in one direction;

[0032] Figure 7 It is a schematic diagram of the structure of the manipulator of the present invention in another direction;

[0033] Figure 8 It is a schematic structural diagram of the piercing device of the present invention;

[0034] Fig. 9 yes Figure 8 A partial enlarged view of point B in the middle;

[0035] Fig.10 It is a structural schematic diagram of a hole-piercing column of the present invention;

[0036] Fig.11 The arrangement of the three piercing devices of the present invention is shown in FIG. Figure 1 ;

[0037] Fig.12 The arrangement of the three piercing devices of the present invention is shown in FIG. Figure 2 ;

[0038] Fig.13 It is a schematic diagram of the use state of the present invention;

[0039] Among them: 1 is a punching device, 10 is a frame, 11 is a punching device, 110 is a driving cylinder, 111 is a punching column, 1110 is a convex edge, 112 is a connecting frame, 113 is a heat dissipation blind hole, 114 is a cooling joint, 115 is an air inlet pipe, 116 is an air outlet pipe, 117 is a fixing part, 12 is a manipulator, 120 is a big arm, 121 is a small arm, and 122 is a gripper; 2 is an electric carbide pot; 3 is a conveying mechanism. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Example 1

[0042] A method for rapidly cooling molten calcium carbide, wherein holes are punched during the calcium carbide cooling process, and a punching device is used for the operation; finally, after the fluid calcium carbide is cooled and solidified into a solid state, blind holes are formed on the calcium carbide weight. The existence of the blind holes effectively increases the heat dissipation area, thereby improving the heat dissipation efficiency. In addition, due to the improvement of the heat dissipation efficiency, the phenomenon of powdery waste on the surface of the calcium carbide is avoided.

[0043] Furthermore, during the cooling process, the calcium carbide pot is placed in a closed heat dissipation kiln, which is equipped with a dust removal device. In the closed heat dissipation kiln, the fluid calcium carbide is prevented from splashing and causing external damage, and there is an effective dust removal device to avoid pollution to the environment.

[0044] Furthermore, the piercing operation means that a hole is pierced once by the piercing device at a certain interval, that is, a hole is pierced once by the piercing device at a certain interval of 30 to 40 minutes, for a total of 5 to 8 times.

[0045] Preferably, the piercing device pierces the hole to the bottom, and after half an hour, the piercing device pierces the hole again, and pierces once every half an hour for five times.

[0046] Furthermore, the heat dissipation area can be increased by punching holes, but in order to further increase the heat dissipation area, the following technical solution is adopted:

[0047] The blind holes include a central blind hole and circumferential blind holes. The central blind hole is located at the center of the carbide weight. There are at least two circumferential blind holes that are evenly distributed with the central blind hole as the center.

[0048] Furthermore, the shape of the blind hole may be circular, square or the like; preferably, it may be elliptical, that is, the cross-sectional shape of the blind hole is elliptical.

[0049] Example 2

[0050] The heat dissipation method of the above embodiment 1 requires a corresponding punching device 1 to be used for operation. In order to ensure the smooth progress of the punching, the following structure is preferably used:

[0051] like Figures 1 to 13 As shown, a drilling device 1 includes a frame 10 and a drilling device 11. The drilling device 11 includes a driving cylinder 110, a drilling column 111 and a connecting frame 112. The connecting frame 112 is slidably connected to the frame 10, and the drilling column 111 is fixedly connected to the connecting frame 112. The two ends of the driving cylinder 110 are respectively fixedly connected or hinged to the frame 10 and the connecting frame 112. The connecting frame 112 and the drilling column 111 are moved up and down by the extension and retraction of the driving cylinder 110 to perform drilling operations.

[0052] When in use, the calcium carbide pot 2 is transported to the piercing device 1 through the existing conveying mechanism 3, and then the piercing column 111 is moved downward by driving the oil cylinder 110 to extend for piercing; after piercing, the oil cylinder 110 is driven to retract to move the piercing column 111 out of the calcium carbide pot 2.

[0053] For the conveying mechanism 3 and the calcium carbide pot 2, the structural arrangement disclosed in a calcium carbide pot and conveying device (patent number CN214358531U) previously applied for by the applicant can be adopted or referenced.

[0054] Furthermore, a variety of structures can be used to achieve the sliding connection between the connecting frame 112 and the frame 10, such as a corresponding guide column is fixed on the frame 10, the connecting frame 112 is slidably connected to the guide column, and a corresponding through hole is provided on the connecting frame 112; or a structure such as a slide groove can be provided to achieve the sliding connection.

[0055] Furthermore, in order to increase the number of holes and the heat dissipation area, the following structure is adopted:

[0056] There are three drilling devices 11, which are arranged side by side; two drilling columns 111 are provided on the connecting frames 112 in the drilling devices 11 at both ends; that is, there are five drilling columns 111 in total, and five blind holes can be formed on the calcium carbide weight through the five drilling columns 111.

[0057] The three piercing devices 11 can increase the number of piercing holes and can be driven separately as needed. For example, in the initial stage, the three piercing devices 11 can act synchronously; when the fluid calcium carbide gradually solidifies into a calcium carbide weight, they can be driven separately, that is, the piercing columns 111 of the three piercing devices 11 move down synchronously, and when lifting, the piercing columns 111 of the piercing devices at both ends move up first, and then the piercing columns 111 in the middle move up; in this way, the calcium carbide weight can be pulled out when all of them move up.

[0058] Furthermore, the piercing columns 111 in the piercing devices 11 at both ends are evenly distributed with the piercing column 111 in the middle piercing device 11 as the center.

[0059] Furthermore, in order to ensure smooth piercing and improve the heat dissipation effect, the piercing column 111 is preferably an elliptical column, and the lower end of the piercing column 111 is in the shape of a flat cone. The heat dissipation effect of the elliptical column is better than that of the cylinder; the lower end is set to a flat cone, which is convenient for piercing.

[0060] Furthermore, the piercing column 111 absorbs heat during the piercing process, causing its own temperature to rise. Therefore:

[0061] A heat dissipation blind hole 113 is provided on the perforated column 111, and a cooling joint 114 connected to the heat dissipation blind hole 113 is fixed on the upper end of the perforated column 111. The cooling joint 114 can be connected to a corresponding circulating cooling device to cool the perforated column 111. The cooling joint 114 can be connected by common fixed connection methods such as threaded connection, screw connection, bolt connection, plug-in connection, and clamping connection.

[0062] Further, the cooling joint 114 is preferably an air-cooling joint, which is connected with an air inlet pipe 115 and an air outlet pipe 116. The circulating gas enters the heat dissipation blind hole 113 through the air inlet pipe 115, and then is discharged through the air outlet pipe 116 to achieve heat dissipation and temperature reduction.

[0063] Furthermore, the number of the heat dissipation blind holes 113 can be set according to actual conditions, and the heat dissipation blind holes 113 are connected to each other. When there is one heat dissipation blind hole 113, the air inlet pipe 115 and the air outlet pipe 116 are both connected to the blind hole; when there are multiple heat dissipation blind holes 113, the air inlet pipe 115 and the air outlet pipe 116 can be respectively connected to one or more heat dissipation blind holes 113. Regardless of the structural setting, as long as a cycle can be formed to cool the perforated column 111.

[0064] Furthermore, the piercing column 111 is detachably connected to the connecting frame 112; it also includes a manipulator 12, through which the piercing column 111 is replaced; the manipulator 12 includes an upper arm 120, a lower arm 121 and a gripper 122, one end of the upper arm 120 is hinged to the frame 10, one end of the lower arm 121 is rotatably connected to the other end of the upper arm 120, and the other end of the lower arm 121 is rotatably connected to the gripper 122.

[0065] When in use, the manipulator 12 is driven to move to the piercing column 111, and the piercing column 111 is held by the gripper 122; then the piercing column 111 is separated from the connecting frame 112, and finally the separated piercing column 111 is taken out by the manipulator 12.

[0066] Furthermore, the above-mentioned manipulator can be driven by hydraulic elements or other power elements, but in order to reduce the complexity of the equipment, the manipulator is preferably driven by manpower; preferably: the gripper 122 is a U-shaped card plate, and the piercing column 111 is provided with a corresponding convex edge 1110.

[0067] The specific operation process is as follows: as needed, the upper arm 120, the lower arm 121 and the gripper 122 are driven by manpower to rotate, so that the gripper 122 is moved to the piercing column 111, and the U-shaped clamping plate is clamped under the convex edge 1110 of the piercing column 111; then the piercing column 111 is separated from the connecting frame 112, and finally the separated piercing column 111 is taken out by the manipulator 12.

[0068] Furthermore, in order to facilitate replacement of the piercing column 111, the piercing column 111 is preferably connected to the connecting frame 112 in the following manner:

[0069] The piercing column 111 is plugged into the connecting frame 112, and the connecting frame 112 is provided with a corresponding through hole. One end of the piercing column 111 extends through the through hole and is threadedly connected with a fixing member 117, and is fixed by the fixing member 117. The fixing member 117 can be specifically arranged in a structure similar to a "nut". When replacing, it is necessary to first loosen the fixing member 117, and then drive the connecting frame 112 upward by driving the oil cylinder 110 to separate the piercing column 111 from the connecting frame 112.

[0070] Example 3

[0071] The efficiency of the above-mentioned embodiment 2 is limited, therefore, this embodiment provides a high-efficiency parallel piercing device 1.

[0072] The present high-efficiency parallel piercing device 1 is actually a plurality of piercing devices 1 in Embodiment 2 arranged side by side, thereby improving efficiency. The racks 10 of the plurality of piercing devices 1 are preferably fixedly connected, or the plurality of piercing devices 1 can share one rack 10, which can be adjusted and designed according to actual conditions. Figures 1 to 5, 13 show structural diagrams of two parallel settings.

[0073] Only the preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention, and various changes should be included in the protection scope of the present invention.

Claims

1. A method for rapidly cooling molten calcium carbide, characterized in that: During the cooling process, the fluid calcium carbide in the calcium carbide pot is punched by a punching device, so that the fluid calcium carbide is cooled and solidified into a solid state, forming a calcium carbide weight with blind holes; During the cooling process, the calcium carbide pot is placed in a closed heat dissipation kiln, which is equipped with a dust removal device; the punching operation refers to: punching a hole once every 30 to 40 minutes through the punching equipment, for a total of 5 to 8 times; punching can increase the heat dissipation area of ​​the fluid calcium carbide and improve the heat dissipation speed; at the same time, the punching process plays a role in stirring and squeezing the lower layer of liquid up.

2. The method for rapidly cooling molten calcium carbide according to claim 1, characterized in that: The blind holes include a central blind hole and circumferential blind holes. The central blind hole is located at the center of the carbide weight. There are at least two circumferential blind holes that are evenly distributed with the central blind hole as the center.

3. The method for rapidly cooling molten calcium carbide according to claim 1 or 2, characterized in that: The cross-sectional shape of the blind hole is elliptical.

Images