Automatic treatment system and method for wet-process acetylene calcium carbide slurry

Abstract

The application discloses a kind of automatic processing system and method of wet-process acetylene carbide slag slurry, and the slag outlet of acetylene generator in the system is inserted into the feed end of the horizontal section box of slag retriever;Slag retriever horizontal section box is provided with overflow, and overflow is connected to the liquid inlet of stirring pool, and the liquid outlet of stirring pool is connected to the liquid inlet of acetylene recovery device;Slag retriever discharge end is connected to the feed inlet of screening equipment, and the large particle outlet of screening equipment is connected to waste material receiving bin;The small particle outlet of screening equipment is connected to the feed inlet of jig, and the large particle outlet of jig is connected to the feed inlet of first dewatering screen, and the small particle outlet of jig is connected to the feed inlet of second dewatering screen, and the discharge outlet of second dewatering screen is connected to second ferrosilicon receiving bin;The water outlet of first dewatering screen and the water outlet of second dewatering screen are both connected to the feed inlet of slag retriever.The application solves the problem of safety hazard in the prior art that wet-process acetylene carbide slag slurry is retrieved by manual operation.

Description

Technical Field

[0001] This application belongs to the field of automatic treatment technology for wet acetylene carbide slag slurry, specifically relating to an automatic treatment system and method for wet acetylene carbide slag slurry. Background Technology

[0002] In the wet acetylene production process, calcium carbide hydrolyzes in the acetylene generator to produce acetylene gas, while also generating a large amount of heat and calcium carbide slag slurry. The calcium carbide slag contains ferrosilicon and is classified as solid waste, requiring manual removal. Workers must first manually scoop the calcium carbide slag slurry discharged from the generator's slag outlet from the ditch, then repeatedly rinse it with water to remove the calcium carbide slag and ferrosilicon, before finally transporting it to a slag shed for centralized processing. The calcium carbide slag is sent to a cement plant for processing as raw material, while the ferrosilicon is sold externally. The generator's slag discharge temperature is approximately 80℃, and its main component is calcium hydroxide. During manual slag removal, the slag slurry is prone to splashing, posing a safety hazard, especially in winter when there is a risk of slipping and falling. Furthermore, dissolved acetylene gas, hydrogen sulfide, and phosphine are released, resulting in severe odors and a dirty working environment. Long-term exposure to such an environment can negatively impact the physical and mental health of the workers. Summary of the Invention

[0003] This application provides an automated system and method for treating wet acetylene carbide slag slurry, which solves the safety hazards associated with manual slag removal in existing technologies. It also addresses the environmental odor problem caused by gases emitted during open-air manual slag removal operations; and achieves automated control, improving the previously dirty and unsanitary working environment.

[0004] To achieve the above objectives, embodiments of the present invention provide an automatic wet acetylene calcium carbide slag slurry treatment system, including a slag remover, a mixing tank, a slurry pump, an acetylene recovery device, a screening device, a waste receiving bin, a jig, a first dewatering screen, a first ferrosilicon receiving bin, a second dewatering screen, and a second ferrosilicon receiving bin.

[0005] The slag discharge port of the acetylene generator is connected to the inlet of the slurry conveying pipe, and the outlet of the slurry conveying pipe extends into the inlet end of the horizontal section of the slag remover box; the slag remover is a closed structure.

[0006] An overflow port is provided at the upper end of the horizontal section of the slag remover box. The overflow port is connected to the liquid inlet of the mixing tank through an overflow pipe. The liquid outlet of the mixing tank is connected to the liquid inlet of the slurry pump. The liquid outlet of the slurry pump is connected to the liquid inlet of the acetylene recovery device.

[0007] The discharge end of the slag remover's uphill section is connected to the feed inlet of the screening equipment; the large particle outlet of the screening equipment is connected to the waste receiving bin; and the small particle outlet of the screening equipment is connected to the feed inlet of the jig.

[0008] The large particle outlet of the jig is connected to the feed inlet of the first dewatering screen, the discharge outlet of the first dewatering screen is connected to the feed inlet of the first ferrosilicon receiving bin, the small particle outlet of the jig is connected to the feed inlet of the second dewatering screen, and the discharge outlet of the second dewatering screen is connected to the second ferrosilicon receiving bin.

[0009] The outlets of the first dewatering screen and the second dewatering screen are both connected to the feed inlet of the slag remover.

[0010] In one possible implementation, both the end tensioning device space of the horizontal section box of the slag remover and the space of the uphill section box of the slag remover are provided with nitrogen replacement sections.

[0011] In one possible implementation, a flushing mechanism is provided inside the horizontal section of the slag remover, and a spraying mechanism is provided inside the uphill section of the slag remover.

[0012] In one possible implementation, the screening device includes a screen cylinder, a drive ring, a rotating wheel, and a suspension mechanism;

[0013] The screen cylinder is provided with drive ring bodies at both ends. The drive ring bodies are provided with annular snap-fit ​​grooves in the circumference. The drive ring bodies at both ends are provided with rotating wheels on the left and right sides. The rotating wheels have a rounded rectangular cross-section. The rotating wheels are rotatably mounted on the support. The outer wall of the rotating wheel abuts against the outer wall of the drive ring body.

[0014] The suspension mechanism includes a top frame, a hanging ring, and an arc-shaped plate. The lower end of the hanging ring is connected to the upper part of the arc-shaped plate. The hanging ring is located in the hanging hole at the lower end of the top frame and can move vertically within the hanging hole. The arc-shaped plate is slidably installed in the annular snap-fit ​​groove.

[0015] In one possible implementation, the screening equipment further includes a blockage-clearing mechanism, which includes an arc-shaped top plate and an elastic top member;

[0016] The arc-shaped top plate is fixedly installed above the screen cylinder, and the elastic top member is installed on the lower surface of the arc-shaped top plate. The elastic top member is in multiple rows, with multiple elastic top members in each row. The lower end of the elastic top member cooperates with the screen hole at the top of the screen cylinder.

[0017] In one possible implementation, the elastic top member has a U-shaped structure with both sides protruding outwards.

[0018] This invention also provides an automatic treatment method for wet acetylene carbide slag slurry, using the aforementioned automatic treatment system for wet acetylene carbide slag slurry, comprising the following steps:

[0019] The slurry discharged from the acetylene generator is transported to the interior of the horizontal section of the slag remover through a slurry conveying pipe;

[0020] The slag body of the slag falls onto the chain plate of the slag remover under the action of gravity. The slurry of the slag fills the upper part of the horizontal section box of the slag remover under the action of gravity. The slurry of the slag forms the supernatant water seal section in the lower part of the uphill section box of the slag remover.

[0021] The slurry inside the horizontal section box enters the mixing tank through the overflow pipe. The slurry in the mixing tank is then pumped to the acetylene recovery unit, which recovers the acetylene dissolved in the slurry.

[0022] The chain conveyor transports the slag to the screening equipment. Large slag particles output from the screening equipment enter the waste receiving bin, while small slag particles output from the screening equipment enter the jig for processing.

[0023] Large particles of slag output from the jig enter the first dewatering screen, and the material output from the first dewatering screen enters the first ferrosilicon receiving bin. Small particles of slag output from the jig enter the second dewatering screen, and the material output from the second dewatering screen enters the second ferrosilicon receiving bin.

[0024] The slurry output from the first and second dewatering screens is transported to the slag remover, and this portion of the slurry eventually enters the acetylene recovery unit.

[0025] In one possible implementation, before the slurry is conveyed into the slag remover, nitrogen is injected into the tensioning device space at the end of the horizontal section of the slag remover box and the space of the uphill section of the slag remover box. The nitrogen makes the exhaust gas after the space is replaced meet the emission standards.

[0026] When the slag remover malfunctions, it is used as a temporary emergency slag discharge tank. The slag slurry inside the slag remover is flushed by the flushing mechanism, and the flushing liquid enters the mixing tank for unified treatment of the slag.

[0027] When the chain conveyor transports the slag to the screening equipment, the slag on the uphill section of the chain conveyor is washed by a spraying mechanism.

[0028] In one possible implementation, when the screening equipment is working, the rotary wheel drives the screen cylinder to rotate through the drive ring, while simultaneously causing the screen cylinder to oscillate in the vertical direction; during this process, the arc plate slides in the annular snap-fit ​​groove, and the hanging ring moves in the vertical direction in the hanging hole.

[0029] In one possible implementation, when the screen cylinder oscillates in the vertical direction, the screen holes at the top of the screen cylinder move toward the lower end of the elastic top member, and the lower end of the elastic top member pushes out the slag blocked in the screen holes.

[0030] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0031] This invention provides an automatic system and method for treating wet acetylene calcium carbide slag slurry. During operation, the slag remover employs a sealed structure, with the entire horizontal section of the tank submerged in water to isolate acetylene gas carried by the slurry discharged from the generator. The discharged slurry is discharged through the overflow port of the horizontal section of the slag remover and pumped to an acetylene recovery device for recycling. The sealed design of the slag remover solves the problem of material splashing during slag discharge, thus ensuring a clean working environment. The supernatant water seal section suppresses the odor caused by the emission of volatile gases such as dissolved acetylene, hydrogen sulfide, and phosphine. Automatic slag removal replaces manual slag removal, reducing labor intensity and effectively preventing slips, falls, and the inhalation of harmful gases. This system solves a series of technical problems associated with manual slag removal of calcium carbide slag slurry, including high labor intensity, numerous safety hazards, strong odor, and low-quality ferrosilicon. This invention achieves automatic slag removal of calcium carbide slag slurry, odor control, improved automation, reduced labor costs, and reduced production costs, while also improving the previously dirty and unsanitary working environment. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of the automatic treatment system for wet acetylene carbide slag slurry provided in an embodiment of the present invention.

[0034] Figure 2 This is a schematic diagram of the slag removal machine provided in an embodiment of the present invention.

[0035] Figure 3 This is a schematic diagram of the structure of the screening equipment provided in an embodiment of the present invention.

[0036] Figure 4 for Figure 3 AA sectional view.

[0037] Figure 5 This is a schematic diagram of the unblocking mechanism provided in an embodiment of the present invention.

[0038] Figure 6 This is a schematic diagram of the structure of the elastic top member provided in an embodiment of the present invention.

[0039] Reference numerals in the attached drawings: 1-Acetylene generator; 2-Slag remover; 21-Box; 3-Mixing tank; 4-Acetylene recovery device; 5-Screening equipment; 6-Waste receiving bin; 7-Jig; 8-First dewatering screen; 9-First ferrosilicon receiving bin; 10-Second dewatering screen; 11-Second ferrosilicon receiving bin; 12-Nitrogen replacement section; 13-Screen cylinder; 14-Drive ring body; 141-Annular snap-fit ​​groove; 15-Rotator; 16-Suspension mechanism; 161-Top frame; 162-Hanging ring; 163-Arc plate; 17-Drive shaft; 18-Unblocking mechanism; 181-Arc top plate; 182-Elastic top component; 19-Overflow port. Detailed Implementation

[0040] 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, not all, of the embodiments of the present invention. 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.

[0041] In the description of the embodiments of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the embodiments of the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0042] like Figures 1 to 6 As shown, the wet acetylene calcium carbide slag slurry automatic treatment system provided in this embodiment of the invention includes a slag remover 2, a mixing tank 3, a slurry pump, an acetylene recovery device 4, a screening device 5, a waste receiving bin 6, a jig 7, a first dewatering screen 8, a first ferrosilicon receiving bin 9, a second dewatering screen 10, and a second ferrosilicon receiving bin 11.

[0043] The slag discharge port of the acetylene generator 1 is connected to the inlet of the slurry conveying pipe, and the outlet of the slurry conveying pipe extends into the inlet end of the horizontal section box 21 of the slag remover 2. The slag remover 2 is a closed structure.

[0044] An overflow port 19 is provided at the upper end of the horizontal section box 21 of the slag remover 2. The overflow port 19 is connected to the liquid inlet of the mixing tank 3 through an overflow pipe. The liquid outlet of the mixing tank 3 is connected to the liquid inlet of the slurry pump. The liquid outlet of the slurry pump is connected to the liquid inlet of the acetylene recovery device 4.

[0045] The discharge end of the uphill section of the slag remover 2 is connected to the inlet of the screening equipment 5, and the large particle outlet of the screening equipment 5 is connected to the waste receiving bin 6. The small particle outlet of the screening equipment 5 is connected to the inlet of the jig 7.

[0046] The large particle outlet of the jig 7 is connected to the feed inlet of the first dewatering screen 8, the discharge outlet of the first dewatering screen 8 is connected to the feed inlet of the first ferrosilicon receiving bin 9, the small particle outlet of the jig 7 is connected to the feed inlet of the second dewatering screen 10, and the discharge outlet of the second dewatering screen 10 is connected to the second ferrosilicon receiving bin 11.

[0047] The outlets of the first dewatering screen 8 and the second dewatering screen 10 are both connected to the feed inlet of the slag remover 2.

[0048] It should be noted that the screening equipment 5 can adopt structural forms such as drum screen, vibrating screen, and air classifier. The slag remover 2 adopts a sealed structure, so that the gaseous odor will not diffuse into the environment. The entire horizontal section of the box 21 is submerged in water to isolate the acetylene gas carried by the slurry discharged from the generator. The discharged slurry is discharged through the overflow port 19 of the horizontal section of the slag remover 2 and pumped to the acetylene recovery device 4 for acetylene recovery and reuse. The temperature of the calcium carbide slag slurry discharged from the slag outlet of the acetylene generator 1 is about 80°C. At this temperature, the solubility of acetylene in water is minimal. The sealed design can minimize the diffusion of a large amount of acetylene gas into the atmosphere. The slurry after slag removal is transported to the existing acetylene recovery system to recover the maximum amount of acetylene gas in the slurry, so as to maximize the utilization of the raw material value. The main equipment of the sorting system includes the screening equipment 5, the jig 7, and the dewatering screen. Screening equipment 5 performs preliminary screening of carbide slag. The jig 7 uses a sawtooth-shaped design with a sawtooth-shaped jigging pulse curve, ensuring the rising water flow is faster than the falling water flow, with a short rising time and a long falling time. This overcomes the shortcomings of sine wave and pulse curve jigs where the rising and falling water flow and action time are the same, enhancing the looseness of the bed and allowing heavy particles to settle fully. This improves the equipment's separation ratio and recovery rate, enabling screening of both coarse and fine particles and expanding the lower limit of the effective particle size distribution. This means that the washing and recovery effect of fine materials is excellent, and the pulsating curve of the sawtooth wave jig 7 makes it easier for heavy particles to settle. The dewatering screen is designed in two stages to screen refined ferrosilicon and coarse ferrosilicon separately, achieving product quality grading and improvement. This system solves a series of technical problems in the manual slag removal process of carbide slag slurry, such as high labor intensity, numerous safety hazards, strong odor, and low ferrosilicon quality. The sealed design of the slag remover 2 solves the problem of material splashing during the slag discharge process, thus ensuring a clean working environment.

[0049] In this embodiment, nitrogen replacement sections 12 are provided in the space of the end tensioning device of the horizontal section box 21 of the slag remover 2 and the space of the uphill section box 21 of the slag remover 2.

[0050] It should be noted that by replacing acetylene with nitrogen at the feed and discharge ends of the slag remover 2, the risk of residual acetylene gas accumulation in the space is reduced, ensuring that the exhaust gas emissions meet the standards after replacement.

[0051] In this embodiment, a flushing mechanism is provided inside the horizontal section box 21 of the slag remover 2, and a spraying mechanism is provided inside the uphill section box 21 of the slag remover 2.

[0052] It should be noted that during maintenance shutdowns, the flushing mechanism washes the slurry inside the slag remover's two-box 21, facilitating personnel operations. A spray system is installed one meter above the liquid surface on the uphill section for scraper and chain flushing when necessary, preventing material from caking and becoming stuck.

[0053] In this embodiment, the screening device 5 includes a screen cylinder 13, a drive ring 14, a rotating wheel 15, and a suspension mechanism 16.

[0054] Both ends of the screen cylinder 13 are provided with drive ring bodies 14. The drive ring bodies 14 are provided with annular snap-fit ​​grooves 141 in the circumference. Both sides of the drive ring bodies 14 at both ends are provided with rotating wheels 15. The cross-section of the rotating wheels 15 is a rounded rectangular structure. The rotating wheels 15 are rotatably mounted on the support, and the outer wall of the rotating wheels 15 abuts against the outer wall of the drive ring bodies 14.

[0055] The suspension mechanism 16 includes a top frame 161, a hanging ring 162, and an arc plate 163. The lower end of the hanging ring 162 is connected to the upper part of the arc plate 163. The hanging ring 162 is located in the hanging hole at the lower end of the top frame 161. The hanging ring 162 can move vertically in the hanging hole. The arc plate 163 is slidably installed in the annular snap-fit ​​groove 141.

[0056] It should be noted that the rotating wheels 15 on both sides of the drive ring 14 are connected by drive shafts 17. Drive shafts 17 are equipped with drive gears, which are connected to the output shaft of the geared motor via a transmission mechanism. The geared motor drives the drive gears to rotate through the transmission mechanism, thereby causing the rotating wheels 15 to rotate, which in turn drives the screen cylinder 13 to rotate. Rubber sleeves are fitted onto the rotating wheels 15 for anti-slip and shock absorption. The rotating wheels 15 have a rounded rectangular cross-section. While the screen cylinder 13 rotates, the rotating wheels 15 oscillate up and down, thus improving the screening effect. The suspension mechanism 16 serves to fix and limit the movement of the screen cylinder 13. When the screen cylinder 13 rotates, the arc-shaped plate 163 moves relative to the screen cylinder within the annular locking groove 141.

[0057] In this embodiment, the screening device 5 also includes a blockage clearing mechanism 18, which includes an arc-shaped top plate 181 and an elastic top member 182.

[0058] The arc-shaped top plate 181 is fixedly installed above the screen cylinder 13, and the elastic top member 182 is installed on the lower surface of the arc-shaped top plate 181. The elastic top member 182 is in multiple rows, with multiple elastic top members 182 in each row. The lower end of the elastic top member 182 matches the screen hole at the top of the screen cylinder 13.

[0059] It should be noted that when the screen cylinder 13 vibrates up and down, the lower end of the elastic top piece 182 inserts into the screen hole at the top of the screen cylinder 13, thereby achieving the effect of clearing blockage. The number of elastic top pieces 182 in each row matches the number of screen holes in each row, and their positions also correspond.

[0060] In this embodiment, the elastic top member 182 has a U-shaped structure and is made of stainless steel, with both sides of the elastic top member 182 protruding outwards.

[0061] It should be noted that the lower end of the elastic top member 182 is a rounded transition structure with a small radius. The elastic top member 182 can apply a set pressure to the screen cylinder 13. The structure of the elastic top member 182 does not affect the normal rotation of the screen cylinder 13. When the force on the elastic top member 182 is greater than the set pressure, the two sides of the middle part of the elastic top member 182 will protrude and deform further outward.

[0062] like Figures 1 to 6 As shown, the automatic treatment method for wet acetylene carbide slag slurry provided in this embodiment of the invention uses the above-mentioned automatic treatment system for wet acetylene carbide slag slurry and includes the following steps:

[0063] The slurry discharged from the acetylene generator 1 is transported through the slurry conveying pipe to the interior of the horizontal section box 21 of the slag remover 2.

[0064] The slag body of the slag falls onto the chain plate of the slag remover 2 under the action of gravity. The slurry fills the upper part of the horizontal section box 21 of the slag remover 2 under the action of gravity. The slurry forms the supernatant water seal section in the lower part of the uphill section box 21 of the slag remover 2.

[0065] The slurry inside the horizontal section box 21 enters the mixing tank 3 through the overflow pipe. The slurry in the mixing tank 3 is transported to the acetylene recovery device 4 by the slurry pump. The acetylene recovery device 4 recovers the acetylene dissolved in the slurry.

[0066] The chain conveyor transports the slag to the screening equipment 5. The large slag particles output from the screening equipment 5 enter the waste receiving bin 6, while the small slag particles output from the screening equipment 5 enter the jig 7 for processing.

[0067] Large particles of slag output from jig 7 enter the first dewatering screen 8. The material output from the first dewatering screen 8 enters the first ferrosilicon receiving bin 9. Small particles of slag output from jig 7 enter the second dewatering screen 10. The material output from the second dewatering screen 10 enters the second ferrosilicon receiving bin 11.

[0068] The slurry output from the first dewatering screen 8 and the second dewatering screen 10 is transported to the slag remover 2, and this portion of the slurry eventually enters the acetylene recovery unit 4.

[0069] It should be noted that after the slurry forms a supernatant water seal section at the lower part of the upper slope section box 21 of the slag remover 2, room temperature clear liquid is injected into the upper part of the supernatant water seal section to form a room temperature clear liquid section. The room temperature clear liquid has a low temperature, which can reduce the liquid phase temperature of the supernatant water seal section, increase the solubility of acetylene, and allow acetylene gas to return to the slurry and finally be recovered by the acetylene recovery device.

[0070] The supernatant water seal section suppresses the environmental odor caused by the emission of volatile gases such as dissolved acetylene, hydrogen sulfide, and phosphine. Automatic slag removal replaces manual slag removal, reducing labor intensity and effectively preventing slips, falls, and the inhalation of harmful gases. The automatic conveying, storage, and unloading system realizes all aspects of material transportation, transfer, storage, and unloading. The acetylene recovery device 4 recovers dissolved acetylene from the slurry, maximizing the utilization of raw material value. Calcium carbide slag larger than 15mm arrives at the waste receiving silo 6 via a belt conveyor, and is then transported to a dump truck via an electric flatbed gate. Ferrosilicon-containing calcium carbide slag smaller than 15mm enters jig 7. Jig 7 separates the slag into two categories: fine slag smaller than 2mm is separated by the second dewatering screen 10 and then conveyed by belt to the second ferrosilicon receiving bin 11; coarse ferrosilicon particles (2-15mm) are separated by the first dewatering screen 8 and then conveyed by belt to the first ferrosilicon receiving bin 9. Once full, the slag is transported to the slag shed for sale by a dump truck. The first and second ferrosilicon receiving bins 9 and 11 are connected in the process design. The aqueous phase separated by the dewatering screen returns to the slag remover 2, flows through the horizontal overflow port 19 of the slag remover 2 into the mixing tank 3, and is then pumped by a slurry pump into the slurry buffer tank and finally to the acetylene recovery unit 4. This invention enables automatic slag removal from calcium carbide slag slurry, odor control in the on-site environment, improved automation control, reduced labor costs, and reduced production costs, while also improving the previously dirty and unsanitary working environment.

[0071] In this embodiment, before the slurry is transported into the slag remover 2, nitrogen is injected into the tensioning device space at the end of the horizontal section box 21 of the slag remover 2 and the space of the uphill section box 21 of the slag remover 2. The nitrogen makes the exhaust gas after the space is replaced meet the emission standards.

[0072] When the slag remover 2 malfunctions, it is used as a temporary emergency slag discharge tank. The slag slurry inside the slag remover 2 is flushed by the flushing mechanism, and the flushing liquid enters the mixing tank 3 for unified treatment of the slag.

[0073] When the chain conveyor transports the slag to the screening equipment 5, the slag on the uphill section of the chain conveyor is washed by the spraying mechanism.

[0074] It should be noted that the nitrogen replacement section 12 resolves the safety hazards in the closed-loop design of the process. In the event of a malfunction of the slag remover 2, the slag remover 2 itself can serve as a temporary emergency slag discharge trough. The flushing mechanism washes the tailings inside the slag remover 2 to the western slag discharge port of the slag remover 2, which then flows into the existing mixing tank 3. From there, it is pumped to the ground for manual washing. A certain width of space is reserved in the trench on the north side of the slag remover 2. A tee is installed on the slag discharge pipe, located outside the slag remover 2. In the event of a malfunction of the slag remover 2, the acetylene tailings can also be directly discharged into the trench on the north side of the slag remover 2. Then, through manual washing, the tailings are flushed to the western side of the slag remover 2, flowing directly into the mixing tank 3 through the trench below the tail of the slag remover 2, and finally pumped to the ground for manual washing.

[0075] In this embodiment, when the screening equipment 5 is working, the rotating wheel 15 drives the screen cylinder 13 to rotate through the driving ring 14, and at the same time makes the screen cylinder 13 oscillate in the vertical direction. During this process, the arc plate 163 slides in the annular snap-fit ​​groove 141, and the hanging ring 162 moves in the vertical direction in the hanging hole.

[0076] It should be noted that the working mode of screening equipment 5 can achieve better screening results.

[0077] In this embodiment, when the screen cylinder 13 oscillates in the vertical direction, the screen holes at the top of the screen cylinder 13 move toward the lower end of the elastic top member 182, and the lower end of the elastic top member 182 pushes out the slag blocked in the screen holes.

[0078] It should be noted that the screening equipment 5 can automatically clear blockages, thereby ensuring the smooth implementation of the screening process.

[0079] In this embodiment, it will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within the present invention.

Claims

1. An automatic treatment system for wet acetylene carbide slag slurry, characterized in that: Includes a slag remover (2), a mixing tank (3), a slurry pump, an acetylene recovery device (4), a screening device (5), a waste receiving bin (6), a jig (7), a first dewatering screen (8), a first ferrosilicon receiving bin (9), a second dewatering screen (10), and a second ferrosilicon receiving bin (11); The slag discharge port of the acetylene generator (1) is connected to the inlet of the slurry conveying pipe, and the outlet of the slurry conveying pipe extends into the inlet of the horizontal section of the slag remover (2); the slag remover (2) is a closed structure. The upper end of the horizontal section of the slag remover (2) is provided with an overflow port (19). The overflow port (19) is connected to the inlet of the mixing tank (3) through an overflow pipe. The outlet of the mixing tank (3) is connected to the inlet of the slurry pump. The outlet of the slurry pump is connected to the inlet of the acetylene recovery device (4). The discharge end of the uphill section of the slag remover (2) is connected to the feed inlet of the screening equipment (5), the large particle outlet of the screening equipment (5) is connected to the waste receiving bin (6), and the small particle outlet of the screening equipment (5) is connected to the feed inlet of the jig (7). The large particle outlet of the jig (7) is connected to the feed inlet of the first dewatering screen (8), the discharge outlet of the first dewatering screen (8) is connected to the feed inlet of the first ferrosilicon receiving bin (9), the small particle outlet of the jig (7) is connected to the feed inlet of the second dewatering screen (10), and the discharge outlet of the second dewatering screen (10) is connected to the second ferrosilicon receiving bin (11). The outlet of the first dewatering screen (8) and the outlet of the second dewatering screen (10) are both connected to the feed inlet of the slag remover (2); Nitrogen replacement section (12) is provided in the space of the end tensioning device of the horizontal section box of the slag remover (2) and the space of the uphill section box of the slag remover (2). The slag remover (2) is equipped with a flushing mechanism in the horizontal section box and a spraying mechanism in the uphill section box.

2. The automatic treatment system for wet acetylene carbide slag slurry according to claim 1, characterized in that: The screening equipment (5) includes a screen cylinder (13), a drive ring (14), a rotating wheel (15), and a suspension mechanism (16). The drive ring body (14) is provided at both the front and rear ends of the screen cylinder (13). The drive ring body (14) is provided with an annular snap-fit ​​groove (141) in the circumferential direction. The drive ring body (14) at both ends is provided with a rotating wheel (15) on the left and right sides. The rotating wheel (15) has a rounded rectangular cross section. The rotating wheel (15) is rotatably mounted on the support. The outer wall of the rotating wheel (15) abuts against the outer wall of the drive ring body (14). The suspension mechanism (16) includes a top frame (161), a hanging ring (162), and an arc plate (163). The lower end of the hanging ring (162) is connected to the upper part of the arc plate (163). The hanging ring (162) is located in the hanging hole at the lower end of the top frame (161). The hanging ring (162) can move vertically in the hanging hole. The arc plate (163) is slidably installed in the annular snap-fit ​​groove (141).

3. The automatic treatment system for wet acetylene carbide slag slurry according to claim 2, characterized in that: The screening equipment (5) also includes a blockage clearing mechanism (18), which includes an arc-shaped top plate (181) and an elastic top member (182). The arc-shaped top plate (181) is fixedly installed above the screen cylinder (13), and the elastic top member (182) is installed on the lower surface of the arc-shaped top plate (181). The elastic top member (182) is in multiple rows, with multiple elastic top members (182) in each row. The lower end of the elastic top member (182) is matched with the screen hole at the top of the screen cylinder (13).

4. The automatic treatment system for wet acetylene carbide slag slurry according to claim 3, characterized in that: The elastic top member (182) has a U-shaped structure, with both sides of the elastic top member (182) protruding outwards.

5. An automatic treatment method for wet acetylene carbide slag slurry, characterized in that, The automatic treatment system for wet acetylene carbide slag slurry as described in claim 4 includes the following steps: The slurry discharged from the acetylene generator (1) is transported through the slurry conveying pipe to the interior of the horizontal section of the slag remover (2); The slag body of the slag falls onto the chain plate of the slag remover (2) under the action of gravity. The slurry of the slag fills the upper part of the horizontal section box of the slag remover (2) under the action of gravity. The slurry of the slag forms the supernatant water seal section in the lower part of the uphill section box of the slag remover (2). The slurry inside the horizontal section box enters the mixing tank (3) through the overflow pipe. The slurry in the mixing tank (3) is transported to the acetylene recovery device (4) by the slurry pump. The acetylene recovery device (4) recovers the acetylene dissolved in the slurry. The chain conveyor transports the slag to the screening equipment (5). The large slag particles output by the screening equipment (5) enter the waste receiving bin (6), and the small slag particles output by the screening equipment (5) enter the jig (7) for processing. Large particles of slag output from the jig (7) enter the first dewatering screen (8), and the material output from the first dewatering screen (8) enters the first ferrosilicon receiving bin (9). Small particles of slag output from the jig (7) enter the second dewatering screen (10), and the material output from the second dewatering screen (10) enters the second ferrosilicon receiving bin (11). The slurry output from the first dewatering screen (8) and the second dewatering screen (10) is transported to the slag remover (2), and this part of the slurry eventually enters the acetylene recovery unit (4).

6. The automatic treatment method for wet acetylene carbide slag slurry according to claim 5, characterized in that: Before the slag is transported into the slag remover (2), nitrogen is injected into the space of the tensioning device at the end of the horizontal section of the slag remover (2) and the space of the uphill section of the slag remover (2). The nitrogen makes the exhaust gas after the space is replaced meet the emission standards. When the slag remover (2) malfunctions, the slag remover (2) is used as a temporary emergency slag discharge tank. The slag slurry in the slag remover (2) is flushed by the flushing mechanism. The flushing liquid enters the mixing tank (3) and the slag is treated uniformly. When the chain conveyor transports the slag to the screening equipment (5), the slag on the uphill section of the chain conveyor is washed by the spraying mechanism.

7. The automatic treatment method for wet acetylene carbide slag slurry according to claim 5, characterized in that: When the screening equipment (5) is working, the rotating wheel (15) drives the screen cylinder (13) to rotate through the driving ring body (14), and at the same time makes the screen cylinder (13) oscillate in the vertical direction; during this process, the arc plate (163) slides in the annular snap groove (141), and the hanging ring (162) moves in the vertical direction in the hanging hole.

8. The automatic treatment method for wet acetylene carbide slag slurry according to claim 7, characterized in that: When the screen cylinder (13) oscillates in the vertical direction, the screen holes at the top of the screen cylinder (13) move toward the lower end of the elastic top member (182), and the lower end of the elastic top member (182) pushes out the slag that is blocked in the screen holes.

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