A closed-loop circulation device for a dry acetylene generation water system

Abstract

The invention relates to the technical field of chemical equipment, and discloses a closed circulation device for a dry acetylene generating water system, comprising a reaction tower, wherein a feeding mechanism, a water supply mechanism, a slag discharger and an auger conveying mechanism are connected to the reaction tower, wherein the other end of the auger conveying mechanism is connected to a dust removal cooling tower, wherein the top of the dust removal cooling tower is connected to an acetylene cooler through a pipeline, and further comprising a closed circulation conveying mechanism, wherein one end of the closed circulation conveying mechanism is connected to the bottom end of the dust removal cooling tower, and the other end is connected to the tops of the reaction tower and the dust removal cooling tower through pipelines, respectively; the closed circulation conveying mechanism supplies part of the slag slurry water in the dust removal cooling tower to the dust removal cooling tower for spray washing and self-circulation, and the other part is recycled to the reaction tower as reaction water, thereby avoiding the situation that a large amount of water vapor is released from the liquid surface of the slag slurry water in the dust removal cooling tower when the slag slurry water passes through several baffles and concentration tanks due to high water temperature and large liquid surface area, thereby causing serious water resource loss.

Description

Technical Field

[0001] The invention relates to the technical field of chemical equipment, and in particular to a closed circulation device for a dry acetylene generating water system. Background Art

[0002] Acetylene is an organic compound, commonly known as wind coal or carbide gas. It is the smallest member of the alkyne compounds. It is a colorless gas at room temperature and pressure, slightly soluble in water, soluble in ethanol, acetone, chloroform, benzene, and miscible in ether. It is one of the important raw materials for organic synthesis and a monomer for synthetic rubber, synthetic fiber and plastic. It can also be used for oxyacetylene welding and cutting. The existing acetylene is usually prepared by reacting calcium carbide (calcium carbide) with water.

[0003] For example, the patent with announcement number CN112409117B and announcement date May 26, 2023 discloses a cooling water closed circulation system for dry acetylene production equipment, including: an acetylene generator; a dust removal cooling tower connected to the acetylene generator; a concentrating tank connected to the dust removal cooling tower; and a buffer tank connected to the concentrating tank; two sets of gas phase scraper devices are arranged between the acetylene generator and the dust removal cooling tower; a washing water pump and a balancing pipe are arranged between the dust removal cooling tower and the concentrating tank; the bottom of the concentrating tank is connected to the slag slurry water composite pump; the buffer tank is connected to the spray water pump, and the spray water pump is connected to the spray device of the dust removal cooling tower; the patent sets a balancing pipe between the dust removal cooling tower and the concentrating tank, and the acetylene gas generated by the secondary reaction in the concentrating tank will flow into the dust removal cooling tower through the balancing pipe, and the acetylene gas in the dust removal cooling tower will be collected and stored, so that the increased air pressure in the concentrating tank will be released through the balancing pipe to avoid leakage or explosion caused by high pressure.

[0004] The existing reaction of calcium carbide with water to generate acetylene gas requires a large amount of water. About 0.6 tons of water are needed to add one ton of calcium carbide. In addition, the wet carbide slag after plate and frame filter pressing takes away some water. The wet slag contains 40% to 50% water. The dry calcium carbide slag sent to the cement plant takes away some water. After the reaction of one ton of calcium carbide, 1.1 tons of dry slag containing 10% water is produced. More importantly, when the calcium carbide slag slurry passes through several baffles and concentration tanks (in order to settle the calcium carbide slag), the water temperature is high, the liquid surface area is large, and a large amount of water vapor will be released on the liquid surface, resulting in serious loss of water resources. Summary of the invention

[0005] The object of the present invention is to provide a closed circulation device for a dry acetylene generating water system to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A closed circulation device for a dry acetylene generating water system comprises a reaction tower, a feeding mechanism, a water supply mechanism, a slag discharger and an auger conveying mechanism connected to the reaction tower, the other end of the auger conveying mechanism is connected to a dust removal cooling tower, the top of the dust removal cooling tower is connected to an acetylene cooler through a pipeline, and also comprises a closed circulation conveying mechanism, one end of the closed circulation conveying mechanism is connected to the bottom end of the dust removal cooling tower, the other end of the closed circulation conveying mechanism is respectively connected to the top of the reaction tower and the dust removal cooling tower through pipelines, the closed circulation conveying mechanism supplies part of the slag slurry water in the dust removal cooling tower to the dust removal cooling tower for internal spray washing and self-circulation, and the other part is recycled to the reaction tower as reaction water.

[0008] The above-mentioned water supply mechanism includes a water supply pipe, which is connected to a generating water supply tank. The water supply pipe is used to supply water to the generating water supply tank. A generating water supply pump is installed on the generating water supply tank. The generating water supply pump is used to transport the industrial water in the generating water supply tank to the reaction tower.

[0009] As mentioned above, the water supply pipe is also connected to the top of the dust removal cooling tower, and the water supply pipe is used to supplement the dust removal cooling tower with industrial water for dust removal and cooling.

[0010] The closed circulation conveying mechanism includes a closed circulation pump, one end of which is connected to the bottom of the dust removal cooling tower through a pipeline, and the other end of which is connected to the top of the dust removal cooling tower and the reaction tower through pipelines.

[0011] As mentioned above, a first water replenishment automatic control valve is provided at the connection between the dust removal cooling tower and the water supply pipe. The first water replenishment automatic control valve is used to control the entry of industrial water into the dust removal cooling tower. In addition, a first liquid level sensor is also provided in the dust removal cooling tower. The first liquid level sensor is used to monitor the liquid level in the dust removal cooling tower, and the first liquid level sensor is interlocked with the first water replenishment automatic control valve. When the liquid level in the dust removal cooling tower reaches the set height, the first water replenishment automatic control valve is closed to cut off the supply of industrial water in the dust removal cooling tower.

[0012] As mentioned above, a second water supply automatic control valve is arranged at the connection between the closed circulation pump and the dust removal cooling tower. The second water supply automatic control valve is used to control the slurry water to enter the interior of the dust removal cooling tower from the top thereof. The second water supply automatic control valve is also interlocked with the first liquid level sensor. When the liquid level in the dust removal cooling tower reaches the set height, the second water supply automatic control valve is closed to cut off the self-circulation of the slurry water in the dust removal cooling tower.

[0013] As mentioned above, a third water-making automatic control valve is provided at the connection between the closed circulation pump and the reaction tower. The third water-making automatic control valve is used to control the slag slurry water entering the reaction tower. A pressure sensor is provided in the reaction tower. The pressure sensor is used to detect the internal pressure of the reaction tower. The pressure sensor is interlocked with the third water-making automatic control valve and the feeding mechanism. When the pressure in the reaction tower reaches the warning value set by the pressure sensor, the second water-making automatic control valve is closed to cut off the supply of slag slurry water in the reaction tower, and the feeding mechanism stops transporting calcium carbide into the reaction tower.

[0014] As mentioned above, a second liquid level sensor is also provided inside the dust removal cooling tower. The second liquid level sensor is located below the first liquid level sensor. The second liquid level sensor is used to detect the liquid level height in the dust removal cooling tower. The second liquid level sensor is interlocked with the closed circulation pump. When the liquid level in the dust removal cooling tower is lower than the monitoring height of the second liquid level sensor, the closed circulation pump stops working.

[0015] As mentioned above, the reaction tower is also provided with a cleaning mechanism, which is used to clean the carbide slag adhering to the bottom of the reaction tower.

[0016] The cleaning mechanism comprises a rotating part, a scraping part is arranged on the rotating part, a cutting part is arranged on the scraping part, the cutting part is used to cut the carbide slag adhered to the bottom of the reaction tower, and the scraping part is used to shovel the cut carbide slag from the bottom of the reaction tower.

[0017] The beneficial effect of the present invention lies in that: in the above technical scheme, a closed circulation device for a dry acetylene generating water system provided by the present invention is provided with a closed circulation conveying mechanism, which conveys part of the slurry water in the dust removal cooling tower to the dust removal cooling tower to realize self-circulation, and conveys the other part to the reaction tower as reaction water, thereby avoiding the situation in which the slurry water in the dust removal cooling tower passes through several baffle tanks and concentration tanks, and a large amount of water vapor is released on the liquid surface due to the high water temperature, large liquid surface area, and the serious loss of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of a circulation process of a closed acetylene generating water system provided in an embodiment of the present invention;

[0020] Figure 2 It is a schematic diagram of the circulation process of the conventional open acetylene generating water system in the prior art;

[0021] Figure 3 A schematic diagram of the structure of a reaction tower provided in an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the front view of the reaction tower provided in an embodiment of the present invention;

[0023] Figure 5 A cross-sectional schematic diagram of a reaction tower provided in an embodiment of the present invention;

[0024] Figure 6 The embodiment of the present invention provides Figure 5 An enlarged schematic diagram of region A;

[0025] Figure 7 A schematic diagram of the internal structure of a rotating part provided by an embodiment of the present invention;

[0026] Figure 8 Schematic diagram of the cutting route of the cutting strip provided in the embodiment of the present invention at the bottom of the reaction tower

[0027] Fig. 9 A schematic diagram of the cooperation between the cutting part and the scraping part provided in an embodiment of the present invention;

[0028] Fig.10 A schematic diagram of the distribution of trigger bumps and arc-shaped bumps provided in another embodiment of the present invention;

[0029] Fig.11 A schematic diagram of the cooperation between the cutting portion and the scraping portion provided in another embodiment of the present invention;

[0030] Fig.12 Another embodiment of the present invention provides Fig.11 An enlarged schematic diagram of region B;

[0031] Fig.13 A schematic diagram of the cooperation between a traction rod and a traction gear provided in another embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1. Reaction tower; 11. Pressure sensor; 12. Discharge pipe; 2. Feeding mechanism; 3. Water supply mechanism; 31. Water supply pipe; 32. Generation water supply tank; 33. Generation water supply pump; 4. Slag discharger; 5. Auger conveying mechanism; 6. Dust removal cooling tower; 7. Acetylene cooler; 8. Closed circulation conveying mechanism; 81. Closed circulation pump; 9. Cleaning mechanism; 91. Rotating part; 911. Arc-shaped convex block; 912. Rotating ring; 913. Avoidance hole; 914. Trigger convex Block; 92, cutting part; 921, sliding bar; 922, cutting bar; 923, passive gear; 924, rotating section; 925, contraction section; 926, traction trough; 927, traction gear; 928, traction rod; 929, rectangular spiral groove; 920, traction protrusion; 93, scraping part; 931, scraping plate; 932, adjusting groove; 933, adjusting rack; 934, trigger rack; 94, cleaning sleeve; 95, sealing ring; 96, power module. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, Figure 1-Figure 13 , the present invention is further introduced in detail.

[0035] The embodiment of the present invention provides a closed circulation device for a dry acetylene generating water system, comprising a reaction tower 1, to which a feeding mechanism 2, a water supply mechanism 3, a slag discharger 4 and an auger conveying mechanism 5 are connected, the other end of the auger conveying mechanism 5 is connected to a dust removal cooling tower 6, the top of the dust removal cooling tower 6 is connected to an acetylene cooler 7 through a pipeline, and further comprising a closed circulation conveying mechanism 8, one end of the closed circulation conveying mechanism 8 is connected to the bottom end of the dust removal cooling tower 6, and the other end of the closed circulation conveying mechanism 8 is respectively connected to the top of the reaction tower 1 and the dust removal cooling tower 6 through pipelines, the closed circulation conveying mechanism 8 supplies part of the slag slurry water in the dust removal cooling tower 6 to the dust removal cooling tower 6 for internal spray washing and self-circulation, and the other part is recycled to the reaction tower 1 as reaction water.

[0036] Specifically, the main component of calcium carbide is calcium carbide. In the reaction tower 1, calcium carbide reacts with water to generate calcium hydroxide (calcium carbide slag) and acetylene gas. The existing reaction tower 1 is vertically arranged, wherein a feeding mechanism 2 feeds calcium carbide from the top of the reaction tower 1 into the interior of the reaction tower 1, and the feeding mechanism 2 includes a calcium carbide feeding bin, a calcium carbide weighing bin and a screw feeder. The calcium carbide feeding bin is filled with calcium carbide, and the calcium carbide weighing bin is used to control the amount of calcium carbide entering the reaction tower 1 each time. The screw feeder is used to transport the calcium carbide material from the top of the reaction tower 1 to the interior of the reaction tower 1. The water supply mechanism 3 can use a common water pipe, which is connected to the reaction tower 1. The water pipe is used to supply industrial water to the interior of the reaction tower 1, and provides a water source for the preparation of acetylene gas in the reaction tower 1. The slag discharger 4 is located below the reaction tower 1, and the slag discharger 4 is used to transport the dry calcium carbide slag (calcium hydroxide) discharged from the bottom of the reaction tower 1 To other areas (such as cement plants producing cement), the auger conveying mechanism 5 is connected to the side wall of the reaction tower 1, and the auger conveying mechanism 5 connects the reaction tower 1 with the dust removal cooling tower 6. The auger conveying mechanism 5 conveys the acetylene gas in the reaction tower 1 to the dust removal cooling tower 6. At this time, the acetylene gas entering the dust removal cooling tower 6 has a high temperature and carries a large amount of water vapor and carbide slag (dust, the same equipment is the same below). The dust removal cooling tower 6 removes dust and cools the acetylene gas. The dust removal cooling tower 6 sprays water on the acetylene gas. The water cools the acetylene gas and takes away the carbide slag in the acetylene gas. The generated slurry water gathers at the bottom of the dust removal cooling tower 6, and the temperature of the slurry water is relatively high. Then the treated acetylene gas leaves from the top of the dust removal cooling tower 6 and enters the acetylene cooler 7. The acetylene cooler 7 further cools the acetylene gas to complete the production of acetylene gas. The above are all prior arts and will not be repeated here.

[0037] When traditional acetylene gas is produced, an open acetylene generating water system is often used for circulation. In the open acetylene generating water system, a baffle tank, a supernatant tank, a concentrating tank and a plate-frame filter press are included. The high-temperature slag slurry water overflows from the overflow pipe of the dust removal cooling tower 6 to the baffle tank. The supernatant after settling in the baffle tank enters the supernatant tank, and the slag slurry is sent to the concentrating tank. The supernatant at the top of the concentrating tank also overflows to the supernatant tank. The slurry settled to the bottom of the baffle tank is transported to the plate-frame filter press by a slurry pump. The supernatant after filtration also flows into the supernatant tank by gravity. The supernatant is transported by the supernatant pump. To the dust removal cooling tower 6 and the reaction tower 1 for use, the baffle tank and the concentration tank are open tanks, the slurry water in the baffle tank and the concentration tank is directly exposed to the air, at this time the slurry water due to the high temperature, large liquid surface area, there will be a lot of water vapor emitted, and the carbide slag filter cake after the plate and frame filter press treatment of the water content of 40% -50%, through the slag discharger 4 sent to the cement plant dry carbide slag will also take away part of the water, resulting in serious water loss, waste of precious water resources, and part of the acetylene gas dissolved in water will also be discharged into the atmosphere with the evaporation of water vapor, resulting in acetylene gas loss.

[0038] In order to solve the above problems, in this embodiment, a closed circulation conveying mechanism 8 is provided to replace the baffle tank, the concentration tank and the plate and frame filter press to form a closed acetylene generating water system circulation, wherein one end of the closed circulation conveying mechanism 8 is connected to the bottom end of the dust removal cooling tower 6, and the other end of the closed circulation conveying mechanism 8 is connected to the top of the reaction tower 1 and the dust removal cooling tower 6 through pipelines. The acetylene gas conveyed by the auger conveying mechanism 5 contains only a small amount of calcium carbide slag. When the acetylene gas is washed with washing water in the dust removal cooling tower 6, the slag slurry water formed also contains only a small amount of calcium carbide slag. The slag slurry water can completely replace the original industrial water or supernatant for use, thereby After the dust removal cooling tower 6 cools and dusts the acetylene gas transported by the auger conveying mechanism 5, the closed circulation conveying mechanism 8 extracts the slurry water at the bottom of the dust removal cooling tower 6, and the closed circulation conveying mechanism 8 divides the slurry water at the bottom of the dust removal cooling tower 6 into two parts, one part is used for spraying and washing in the dust removal cooling tower 6 for self-circulation, and the other part is returned to the reaction tower 1 as reaction water. At this time, the slurry water is prevented from entering the baffle tank, the concentration tank and the plate and frame filter press, which leads to the waste of water resources. In addition, since there is no baffle tank and the concentration tank, the emission of water vapor will be curbed, thereby avoiding the loss of acetylene gas when water vapor is emitted.

[0039] Preferably, the water supply mechanism 3 includes a water supply pipe 31, which is connected to a generating water supply tank 32. The water supply pipe 31 is used to supply water to the generating water supply tank 32. A generating water supply pump 33 is installed on the generating water supply tank 32. The generating water supply pump 33 is used to transport the industrial water in the generating water supply tank 32 to the reaction tower 1; the water supply pipe 31 is also connected to the top of the dust removal cooling tower 6, and the water supply pipe 31 replenishes the dust removal cooling tower 6 with industrial water for dust removal and cooling. The closed circulation conveying mechanism 8 includes a closed circulation pump 81, one end of the closed circulation pump 81 is connected to the bottom of the dust removal cooling tower 6 through a pipeline, and the other end of the closed circulation pump 81 is respectively connected to the top of the dust removal cooling tower 6 and the reaction tower 1 through pipelines.

[0040] Specifically, the water supply mechanism 3 supplies industrial water to the reaction tower 1 and the dust removal cooling tower 6 respectively. The industrial water entering the reaction tower 1 reacts with the calcium carbide inside it to generate acetylene gas and calcium carbide slag (sodium hydroxide). The industrial water entering the dust removal cooling tower 6 reacts with the high-temperature acetylene gas gradually rising inside it to wash the high-temperature acetylene gas and reduce the temperature of the high-temperature acetylene gas. The high-temperature acetylene gas is washed to reduce the content of calcium carbide slag in the acetylene gas. The industrial water for washing the acetylene gas gathers at the bottom of the dust removal cooling tower 6. Subsequently, the closed circulation pump 81 works to extract the slurry water gathered at the bottom of the dust removal cooling tower 6 and divide the slurry water into two parts. One part is transported to the top of the dust removal cooling tower 6 through a pipeline as washing water for cooling, and the acetylene gas in the dust removal cooling tower 6 is cooled and dusted again. The other part is transported to the inside of the reaction tower 1 through a pipeline to react with the calcium carbide raw material to continue to generate acetylene gas, thereby realizing the recycling of water resources and avoiding the waste of water resources.

[0041] Preferably, a first water replenishment automatic control valve is provided at the connection between the dust removal cooling tower 6 and the water supply pipe 31, and the first water replenishment automatic control valve is used to control the entry of industrial water into the dust removal cooling tower 6, and a first liquid level sensor is also provided in the dust removal cooling tower 6, and the first liquid level sensor is used to monitor the liquid level height in the dust removal cooling tower 6, and the first liquid level sensor is interlocked with the first water replenishment automatic control valve. When the liquid level height in the dust removal cooling tower 6 reaches a set height, the first water replenishment automatic control valve is closed to cut off the supply of industrial water in the dust removal cooling tower 6; a second water replenishment automatic control valve is provided at the connection between the closed circulation pump 81 and the dust removal cooling tower 6, and the second water replenishment automatic control valve is used to control the entry of slag slurry water from the top of the dust removal cooling tower 6 into the interior thereof, and the second water replenishment automatic control valve is also interlocked with the first liquid level sensor. When the liquid level height in the dust removal cooling tower 6 reaches a set height, the second water replenishment automatic control valve is closed to cut off the self-circulation of the slurry water in the dust removal cooling tower 6.

[0042] Specifically, the first liquid level sensor monitors the liquid level of the slurry water in the dust removal cooling tower 6 and the remote control of the first water replenishment automatic valve and the second water replenishment automatic valve are both existing technologies, and their principles will not be repeated. Among them, the first liquid level sensor is located on the inner wall of the dust removal cooling tower 6 and is located at a high place. The first liquid level sensor is used to limit the maximum liquid level of the slurry water inside the dust removal cooling tower 6. When the slurry water in the dust removal cooling tower 6 reaches the maximum liquid level, the first liquid level sensor monitors the liquid level information, and the first liquid level sensor sends a signal to the first water replenishment automatic valve and its second water replenishment automatic valve. The first water replenishment automatic valve is closed, and the water supply pipe 31 stops supplying industrial water to the inside of the dust removal cooling tower 6. At the same time, the second water replenishment automatic valve is also closed, and the closed circulation pump 81 also stops supplying slurry water to the inside of the dust removal cooling tower 6. At this time, the closed circulation pump 81 will transport all the slurry water extracted from the dust removal cooling tower 6 to the inside of the reaction tower 1 to avoid excessive slurry water in the dust removal cooling tower 6, which affects the collection of acetylene gas.

[0043] Preferably, a third water replenishment automatic control valve is provided at the connection between the closed circulation pump 81 and the reaction tower 1. The third water replenishment automatic control valve is used to control the slag slurry water to enter the reaction tower 1. A pressure sensor 11 is provided in the reaction tower 1. The pressure sensor 11 is used to detect the internal pressure of the reaction tower 1. The pressure sensor 11 is interlocked with the third water replenishment automatic control valve and the feeding mechanism 2. When the pressure in the reaction tower 1 reaches the warning value set by the pressure sensor 11, the third water replenishment automatic control valve is closed to cut off the supply of slurry water in the reaction tower 1, and the feeding mechanism 2 stops transporting calcium carbide into the reaction tower 1.

[0044] Specifically, the pressure sensor 11 is used to monitor the pressure in the reaction tower 1 and the remote control of the third water replenishment automatic valve are both existing technologies, and their principles will not be repeated here. Among them, the pressure sensor 11 mainly monitors the air pressure inside the reaction tower 1. When the pressure sensor 11 detects that the air pressure inside the reaction tower 1 is too high, the pressure sensor 11 sends a signal to the third water replenishment automatic valve and the feeding mechanism 2, and the third water replenishment automatic valve is closed, and the closed circulation pump 81 stops conveying slurry water into the reaction tower 1. In addition, the feeding mechanism 2 also stops conveying calcium carbide into the reaction tower 1, and the generation of acetylene gas in the reaction tower 1 is suspended to avoid the continued generation of acetylene gas in the reaction tower 1, which leads to excessive internal air pressure and equipment damage.

[0045] Preferably, a second liquid level sensor is also provided inside the dust removal cooling tower 6. The second liquid level sensor is located below the first liquid level sensor. The second liquid level sensor is used to detect the liquid level height inside the dust removal cooling tower 6. The second liquid level sensor is interlocked with the closed circulation pump 81. When the liquid level inside the dust removal cooling tower 6 is lower than the monitoring height of the second liquid level sensor, the closed circulation pump 81 stops working.

[0046] Specifically, the ability of the second liquid level sensor to monitor the liquid level is a prior art, and its principle will not be repeated. The second liquid level sensor is used to monitor the lowest liquid level in the dust removal cooling tower 6. When the liquid level in the dust removal cooling tower 6 is lower than the monitoring height of the second liquid level sensor, the second liquid level sensor sends a signal to the closed circulation pump 81, and the closed circulation pump 81 stops working, suspending the extraction of the slurry water inside the dust removal cooling tower 6, thereby avoiding the slurry water inside the dust removal cooling tower 6 from being evacuated and causing acetylene gas leakage.

[0047] Obviously, the existing calcium carbide reacts with water to generate carbide slag. The main component of the carbide slag is calcium hydroxide. Calcium hydroxide has a certain viscosity when it comes into contact with water. The generated carbide slag is easy to adhere to the bottom surface of the reaction tower 1, and then the amount of carbide slag entering the slag discharger 4 is reduced, resulting in a waste of carbide slag.

[0048] In order to solve the above problems, a cleaning mechanism 9 is also provided on the reaction tower 1, and the cleaning mechanism 9 is used to clean the carbide slag adhered to the bottom of the reaction tower 1; the cleaning mechanism 9 includes a rotating part 91, and the rotating part 91 is provided with a scraping part 93, and the scraping part 93 is provided with a cutting part 92, and the cutting part 92 is used to cut the carbide slag adhered to the bottom of the reaction tower 1, and the scraping part 93 is used to shovel the cut carbide slag from the bottom of the reaction tower 1.

[0049] Specifically, the reaction tower 1 is installed on a fixed frame, the upper end of the reaction tower 1 is cylindrical, and the bottom is in an inverted truncated cone shape. A discharge pipe 12 is arranged at the bottom of the reaction tower 1, and the discharge pipe 12 is located at the center of the reaction tower 1, that is, the discharge pipe 12 is coaxially arranged with the reaction tower 1, and the discharge pipe 12 connects the reaction tower 1 with the slag discharger 4, and the calcium carbide slag in the reaction tower 1 enters the slag discharger 4 through the discharge pipe 12; a plurality of arc-shaped protrusions 911 are also fixedly installed on the bottom wall of the reaction tower 1, and the plurality of arc-shaped protrusions 911 are sequentially arranged along the circumference of the discharge pipe 12, and the rotating part 91 includes a rotating ring 912 and a power module 96 for driving the rotating ring 912 to rotate, and the rotating ring 912 is located above the arc-shaped protrusion 911, and the outer cylindrical surface of the rotating ring 912 is dynamically sealed with the inner wall of the reaction tower 1, and the inner wall circular surface of the rotating ring 912 is in contact with the discharge pipe 12. Dynamically seal the inner side wall of the reaction tower 1, the upper surface of the rotating ring 912 is flush with the end of the discharge pipe 12, the rotating ring 912 and the discharge pipe 12 are coaxially arranged, and a plurality of avoidance holes 913 are opened on the side wall of the rotating ring 912 along the circumferential direction, the scraping part 93 includes a scraping plate 931, the scraping plate 931 extends from the inside to the outside along the generatrix direction of the bottom of the reaction tower 1, and one end of the scraping plate 931 is fixedly connected to the rotating ring 912, and the cutting part 92 includes a sliding bar 921, the sliding bar 921 and the scraping plate 931 are arranged in parallel, and one end of the sliding bar 921 passes through the avoidance hole 913 in a dynamic seal and abuts against the surface of the arc-shaped protrusion 911, and the sliding bar 921 is connected to the inner wall of the rotating ring 912 by a reset spring, and a plurality of cutting bars 922 are installed on the sliding bar 921, and the plurality of cutting bars 922 are arranged at intervals along the generatrix direction of the bottom of the reaction tower 1;

[0050] Among them, a sealing ring 95 is also provided at the bottom of the reaction tower 1, and the sealing ring 95 is coaxially arranged with the discharge pipe 12, and the sealing ring 95 and the reaction tower 1 are dynamically sealed. Among them, in this embodiment, the power module 96 includes a motor, two sets of pulleys, a traction belt, a rotating sleeve and a plurality of connecting rods. The motor is installed on a fixed frame, and the output shaft of the motor is vertically arranged. A pulley is fixedly installed on the output section of the motor. The rotating sleeve is rotatably installed on the outer wall of the discharge pipe 12 located outside the reaction tower 1, and another pulley is fixedly connected to the bottom end of the rotating sleeve. The two pulleys are connected by a traction belt. A plurality of connecting rods are installed on the upper end surface of the rotating sleeve. The plurality of connecting rods are arranged at intervals along the circumference of the discharge pipe 12, and the connecting rods are arranged vertically. A section of the connecting rod passes through the sealing ring 95 and extends into the reaction tower 1 and is connected to the bottom surface of the rotating ring 912; through the operation of the motor, on the traction belt and the two pulleys, Under the action of a pulley, the rotating sleeve rotates on the discharge pipe 12, and the rotating sleeve drives multiple connecting rods to rotate synchronously, and the connecting rod drives the rotating ring 912 to rotate inside the reaction tower 1, wherein the cutting part 92 and the scraping part 93 are arranged in parallel. When it is necessary to clean the calcium carbide slag adhering to the reaction tower 1, the rotating part 91 rotates around the axis of the discharge pipe 12 inside the reaction tower 1 under the action of the motor, and the rotating part 91 drives the cutting part 92 and the scraping part 93 to move synchronously, and the cutting part 92 cuts the calcium carbide slag adhering to the bottom of the reaction tower 1. After the cutting is completed, the scraping part 93 shovels up the cut calcium carbide slag to avoid the calcium carbide slag adhering to the bottom of the reaction tower 1; the scraping plate 931 is in an inclined state at one end close to the bottom surface of the reaction tower 1, and the cutting strip 922 is a columnar structure, and the end close to the bottom surface of the reaction tower 1 is conical, and the tip of the cone is against the surface of the reaction tower 1;

[0051] When it is necessary to clean the carbide slag adhered to the reaction tower 1, the rotating ring 912 rotates around the axis of the discharge pipe 12 inside the reaction tower 1 under the action of the power module 96, and the rotating ring 912 rotates synchronously with the scraping plate 931 and the sliding bar 921. As the sliding bar 921 moves, the end of the sliding bar 921 passes through the avoidance hole 913 and moves along the arc trajectory of the arc-shaped protrusion 911, and under the squeezing of the arc-shaped protrusion 911, the sliding bar 921 slides back and forth along the busbar direction of the bottom of the reaction tower 1. At this time, the sliding bar 921 moves synchronously with multiple cutting bars 922, and the conical tips of the multiple cutting bars 922 cut the carbide slag adhered to the bottom surface of the reaction tower 1, which is convenient for the subsequent scraping plate 931 to shovel up the carbide slag adhered to the bottom surface of the reaction tower 1, thereby avoiding the carbide slag from adhering to the bottom of the reaction tower 1.

[0052] Obviously, in this embodiment, when the cutting bar 922 moves following the sliding bar 921, the movement trajectory of the cutting bar 922 on the bottom surface of the reaction tower 1 is a continuous zigzag trajectory. The cutting bar 922 can cut the carbide slag adhered to the bottom surface of the reaction tower 1 into more fine pieces, thereby improving the scraping efficiency of the scraping plate 931 on the carbide slag adhered to the bottom surface of the reaction tower 1.

[0053] Preferably, a plurality of cutting portions 92 and scraping portions 93 may be provided on the side wall of the rotating portion 91, and the plurality of cutting portions 92 and the plurality of scraping portions 93 are spaced apart along the circumference of the rotating portion 91, wherein the plurality of cutting strips 922 on the plurality of cutting portions 92 are also spaced apart along the busbar direction of the bottom of the reaction tower 1, that is, when a circle is drawn with the axis of the discharge pipe 12 as the center and the straight-line distance from the axial direction of the discharge pipe 12 to each cutting strip 922 as the radius, concentric circles will be formed, and the number of concentric circles is consistent with the number of cutting strips 922.

[0054] Specifically, by setting up multiple cutting parts 92, and the multiple cutting strips 922 on the multiple cutting parts 92 are spaced apart along the busbar direction of the bottom of the reaction tower 1, when the cutting part 92 rotates following the rotating part 91, the multiple cutting strips 922 on the multiple cutting parts 92 cut the carbide slag adhered to the bottom surface of the reaction tower 1, and the movement trajectories of the multiple cutting strips 922 on the multiple cutting parts 92 are different, which further improves the shredding fineness of the carbide slag adhered to the bottom of the reaction tower 1, making it more convenient to be shoveled up by the subsequent scraping plate 931.

[0055] Preferably, an adjustment groove 932 is provided on the surface of the scraping plate 931 close to the cutting strip 922, and an adjustment rack 933 is installed in the adjustment groove 932. The cutting strip 922 is rotatably installed on the sliding strip 921, and one end of the cutting strip 922 extends into the adjustment groove 932. A passive gear 923 is fixedly installed on the cutting strip 922 located in the adjustment groove 932, and the passive gear 923 is meshed with the adjustment rack 933.

[0056] Specifically, when it is necessary to clean the calcium carbide slag adhered to the reaction tower 1, the rotating ring 912 rotates around the axis of the discharge pipe 12 inside the reaction tower 1 under the action of the power module 96, and the rotating ring 912 rotates synchronously with the scraping plate 931 and the sliding bar 921. As the sliding bar 921 moves, the end of the sliding bar 921 passes through the avoidance hole 913 and moves along the arc track of the arc-shaped protrusion 911. Under the pressure of the arc-shaped protrusion 911, the sliding bar 921 slides back and forth along the generatrix direction at the bottom of the reaction tower 1. At this time, the sliding bar 92 1 brings multiple cutting bars 922 to move synchronously, the cutting bars 922 bring the passive gear 923 to slide along the adjusting groove 932, the passive gear 923 meshes with the adjusting rack 933 in the adjusting groove 932 to rotate, and the passive gear 923 brings the cutting bars 922 to rotate synchronously, that is, when the cutting bars 922 cut the carbide slag adhered to the bottom of the reaction tower 1, they rotate while cutting the adhered carbide slag, the self-rotation of the cutting bars 922 improves the cutting efficiency, and the self-rotation can make the wear of the cutting bars more uniform, thereby improving the service life.

[0057] Obviously, since carbide slag is sticky, when the cutting bar 922 is used for a long time, the tapered end of the cutting bar 922 will be wrapped with a layer of carbide slag, which affects the subsequent cutting efficiency of the cutting bar 922 on the carbide slag adhered to the bottom of the reaction tower 1.

[0058] To solve the above problems, see the attached Figure 10-13In another embodiment of the present invention, the rotating portion 91 further includes a triggering protrusion 914, and the triggering protrusion 914 and the plurality of arc-shaped protrusions 911 are sequentially arranged along the circumference of the discharge pipe 12, and a plurality of triggering racks 934 are further arranged in the adjusting groove 932, and the plurality of triggering racks 934 are arranged at intervals along the groove direction of the adjusting groove 932, and the plurality of triggering racks 934 correspond to the plurality of cutting strips 922 one by one, and the triggering racks 934 are closer to the conical end of the cutting strip 922 than the adjusting racks 933, and the cutting strip 922 includes a rotating section 924 located in the adjusting groove 932 and a contraction section 925 located outside the adjusting groove 932, and the passive gear 923 is mounted on the rotating section 924, and the rotating section 924 is opened at one end away from the passive gear 923. A traction groove 926 is provided, and a traction gear 927 is rotatably installed on one end of the rotating section 924 away from the passive gear 923. The traction gear 927 and the traction groove 926 are coaxially arranged. A traction rod 928 is slidably installed in the traction groove 926, and the other end of the traction rod 928 is fixedly connected to the contraction section 925. The traction gear 927 is sleeved on the outside of the traction rod 928. A rectangular spiral groove 929 is opened on the surface of the traction rod 928. A traction protrusion 920 is installed on the inner circular wall of the traction gear 927, and the traction protrusion 920 is inserted into the rectangular spiral groove 929; and a plurality of cleaning sleeves 94 are also provided on the sliding bar 921, and the plurality of cleaning sleeves 94 correspond to the plurality of cutting strips 922 one by one, and the cleaning sleeves 94 are sleeved on the outside of the corresponding cutting strips 922.

[0059] Specifically, the triggering protrusion 914 is also arc-shaped, and the curvature of the triggering protrusion 914 is greater than the curvature of the arc-shaped protrusion 911, that is, the radius of the virtual circle constituting the triggering protrusion 914 is greater than the radius of the virtual circle of the arc-shaped protrusion 911, so that the maximum arch position of the triggering protrusion 914 is closer to the inner wall of the rotating ring 912 relative to the maximum arch position of the remaining arc-shaped protrusions 911, and the traction rod 928 can only slide along the groove direction of the traction sink groove 926, and cannot rotate in the traction sink groove 926;

[0060] First, as the rotating part 91 rotates with the cutting part 92, when the cutting part 92 moves to the position of the triggering protrusion 914, as the sliding bar 921 moves, the end of the sliding bar 921 passes through the avoidance hole 913 and moves along the arc track of the triggering protrusion 914. Under the pressure of the triggering protrusion 914, the sliding bar 921 slides back and forth along the generatrix direction at the bottom of the reaction tower 1. At this time, the sliding bar 921 moves synchronously with multiple cutting bars 922, and the cutting bars 922 slide along the adjustment groove 932 with the passive gear 923. The passive gear 923 meshes with the adjustment rack 933 in the adjustment groove 932 to rotate, and the passive gear 923 rotates synchronously with the rotating section 924. Under the traction of the traction rod 928, the rotating section 924 rotates with the contraction section 925, and the conical tip of the contraction section 925 rotates while cutting the adhered calcium carbide slag;

[0061] Secondly, because the maximum arch position of the trigger protrusion 914 is closer to the inner wall of the rotating ring 912 relative to the maximum arch position of the other arc-shaped protrusions 911, when the trigger protrusion 914 squeezes the sliding bar 921, the sliding bar 921 will move a longer distance with the cutting bar 922 in the adjustment groove 932. Therefore, as the cutting bar 922 moves, the traction gear 927 on the cutting bar 922 engages with the trigger rack 934, the traction gear 927 rotates, and the traction protrusion 920 on the inner wall of the traction gear 927 moves along the rectangular spiral groove 929 on the surface of the traction rod 928. The traction rod 928 moves toward the inside of the traction trough 926 with the contraction section 925, and the contraction section 925 enters into the cleaning sleeve 94. The cleaning sleeve 94 and the surface of the cutting bar 922 rub against each other, and the cleaning sleeve 94 removes the carbide slag adhering to the surface of the cutting bar 922.

[0062] In order to further improve the cleaning effect of the cleaning sleeve 94 on the carbide slag on the surface of the sliding bar 921, a shovel blade can be installed on the end of the cleaning sleeve 94 away from the sliding bar 921 through a torsion spring. The shovel blade is pressed against the surface of the cutting bar 922 under the action of the torsion spring. As the contraction section 925 enters into the cleaning sleeve 94, the shovel blade will scrape off the carbide slag attached to the surface of the cutting bar 922.

[0063] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A closed circulation device for a dry acetylene generating water system, comprising a reaction tower, a feeding mechanism, a water supply mechanism, a slag discharger and an auger conveying mechanism connected to the reaction tower, the other end of the auger conveying mechanism is connected to a dust removal cooling tower, the top of the dust removal cooling tower is connected to an acetylene cooler through a pipeline, characterized in that: Also includes: A closed circulation conveying mechanism, one end of which is connected to the bottom of the dust removal cooling tower, and the other end of which is connected to the tops of the reaction tower and the dust removal cooling tower through pipelines. The closed circulation conveying mechanism supplies part of the slag slurry water in the dust removal cooling tower to the dust removal cooling tower for internal spray washing and self-circulation, and the other part is recycled to the reaction tower as reaction water; The reaction tower is also provided with a cleaning mechanism, which is used to clean the carbide slag adhering to the bottom of the reaction tower; the cleaning mechanism includes a rotating part, a scraping part is provided on the rotating part, and a cutting part is provided on the scraping part; A plurality of arc-shaped protrusions are fixedly mounted on the bottom wall of the reaction tower, and the plurality of arc-shaped protrusions are sequentially arranged along the circumference of the discharge pipe. The rotating part comprises a rotating ring and a power module for driving the rotating ring to rotate. The rotating ring is located above the arc-shaped protrusions. A plurality of avoidance holes are opened on the side wall of the rotating ring along the circumference. The scraping part comprises a scraping plate, which extends from the inside to the outside along the generatrix direction of the bottom of the reaction tower. One end of the scraping plate is fixedly connected to the rotating ring. The cutting part comprises a sliding bar, which is arranged in parallel with the scraping plate. One end of the sliding bar passes through the avoidance hole and abuts against the surface of the arc-shaped protrusion in a dynamic seal. The sliding bar is connected to the inner wall of the rotating ring by a reset spring. A plurality of cutting bars are mounted on the sliding bar, and the plurality of cutting bars are arranged at intervals along the generatrix direction of the bottom of the reaction tower. An adjustment groove is provided on the surface of the scraping plate near the cutting strip, and the rotating part also includes a trigger protrusion. The trigger protrusion and multiple arc-shaped protrusions are arranged in sequence along the circumference of the discharge pipe. The cutting strip includes a rotating section located in the adjustment groove and a contraction section located outside the adjustment groove. Multiple cleaning sleeves are also provided on the sliding bar. The cleaning sleeves are arranged on the outer side of the corresponding cutting strip. The curvature of the trigger protrusion is greater than that of the arc-shaped protrusion. When the trigger protrusion squeezes the sliding bar, the contraction section enters into the cleaning sleeve, and the cleaning sleeve removes the carbide slag adhering to the surface of the cutting strip.

2. A closed circulation device for dry acetylene generation water system according to claim 1, characterized in that: The water supply mechanism includes a water supply pipe, which is connected to a generating water supply tank. The water supply pipe is used to supply water to the generating water supply tank. A generating water supply pump is installed on the generating water supply tank. The generating water supply pump is used to transport the industrial water in the generating water supply tank to the reaction tower.

3. A closed circulation device for dry acetylene generation water system according to claim 2, characterized in that: The water supply pipe is also connected to the top of the dust removal cooling tower, and the water supply pipe replenishes the dust removal cooling tower with industrial water for dust removal and cooling.

4. A closed circulation device for dry acetylene generation water system according to claim 3, characterized in that: The closed circulation conveying mechanism comprises a closed circulation pump, one end of which is connected to the bottom of the dust removal cooling tower through a pipeline, and the other end of which is connected to the top of the dust removal cooling tower and the reaction tower through pipelines.

5. A closed circulation device for dry acetylene generation water system according to claim 4, characterized in that: A first water replenishment automatic control valve is provided at the connection between the dust removal cooling tower and the water supply pipe. The first water replenishment automatic control valve is used to control the entry of industrial water into the dust removal cooling tower. In addition, a first liquid level sensor is also provided in the dust removal cooling tower. The first liquid level sensor is used to monitor the liquid level in the dust removal cooling tower. The first liquid level sensor is interlocked with the first water replenishment automatic control valve. When the liquid level in the dust removal cooling tower reaches the set height, the first water replenishment automatic control valve is closed to cut off the supply of industrial water in the dust removal cooling tower.

6. A closed circulation device for dry acetylene generation water system according to claim 5, characterized in that: A second water supply automatic control valve is provided at the connection between the closed circulation pump and the dust removal cooling tower. The second water supply automatic control valve is used to control the slurry water to enter the interior of the dust removal cooling tower from the top. The second water supply automatic control valve is also interlocked with the first liquid level sensor. When the liquid level in the dust removal cooling tower reaches the set height, the second water supply automatic control valve is closed to cut off the self-circulation of the slurry water in the dust removal cooling tower.

7. A closed circulation device for dry acetylene generation water system according to claim 6, characterized in that: A third water-making automatic control valve is provided at the connection between the closed circulation pump and the reaction tower. The third water-making automatic control valve is used to control the slag slurry water entering the reaction tower. A pressure sensor is provided in the reaction tower. The pressure sensor is used to detect the internal pressure of the reaction tower. The pressure sensor is interlocked with the third water-making automatic control valve and the feeding mechanism. When the pressure in the reaction tower reaches the warning value set by the pressure sensor, the second water-making automatic control valve is closed to cut off the supply of slag slurry water in the reaction tower, and the feeding mechanism stops transporting calcium carbide into the reaction tower.

8. A closed circulation device for dry acetylene generation water system according to claim 7, characterized in that: A second liquid level sensor is also provided inside the dust removal cooling tower. The second liquid level sensor is located below the first liquid level sensor. The second liquid level sensor is used to detect the liquid level height inside the dust removal cooling tower. The second liquid level sensor is interlocked with the closed circulation pump. When the liquid level inside the dust removal cooling tower is lower than the monitoring height of the second liquid level sensor, the closed circulation pump stops working.

Images