Ammonia distillation and deacidification device for coking in coal production

Abstract

The invention relates to the technical field of ammonia stilling and deacidification, and particularly discloses an ammonia stilling and deacidification device for coking in coal production, which comprises an ammonia stilling desulfurization tower, the top end of the ammonia stilling desulfurization tower is provided with a smoke outlet channel, and a gas passing assembly, the gas passing assembly is arranged on one side of the bottom end of the ammonia stilling desulfurization tower; the gas transfer assembly obtains power through steam and is suitable for driving the gas stirring frame and the gas inlet structure to operate, through the arrangement of the steam pump, the steam firstly passes through the steam pump and drives the gas stirring frame to rotate, so that the steam just entering the ammonia distillation desulfurization tower can move around the ammonia water preheating pipe, and ammonia water in the ammonia water preheating pipe can be subjected to waste heat; the ammonia water gasification time is shortened, and the ammonia distillation efficiency is improved, so that the coal gas purification efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of ammonia evaporation and deacidification, and in particular to an ammonia evaporation and deacidification device for coal production and coking. Background Art

[0002] During the low-temperature dry distillation process of coal, about 15% to 35% of the sulfur combines with hydrogen to form hydrogen sulfide. When the coal gas burns, the hydrogen sulfide in it generates sulfur oxides, which will cause air pollution when discharged with the flue gas. Therefore, it is necessary to use the ammonia desulfurization process to introduce the coal gas into an ammonia desulfurization tower to convert harmful gases such as hydrogen sulfide and ammonia compounds into harmless or low-toxic substances, thereby reducing pollution to the atmosphere.

[0003] When performing ammonia evaporation, ammonia water is injected into the ammonia evaporation desulfurization tower, causing the ammonia water to be gradually gasified by steam from a normal temperature state, thereby desulfurizing the coal gas.

[0004] However, the existing technology still has the following problems: when in use, ammonia water is directly injected into the ammonia evaporation desulfurization tower, and then the ammonia water is slowly evaporated from room temperature by steam to form ammonia gas, which makes the evaporation efficiency of ammonia water low, resulting in low coal gas desulfurization efficiency. Summary of the invention

[0005] The present application provides an ammonia evaporation and desulfurization device for coal production and coking, which solves the problem in the prior art that ammonia water is directly injected into an ammonia evaporation and desulfurization tower when in use, and then the ammonia water is slowly evaporated from room temperature by steam to form ammonia gas, resulting in low evaporation efficiency of ammonia water and low coal gas treatment efficiency, thereby reducing the ammonia evaporation time and improving the efficiency of coal gas desulfurization.

[0006] The present application provides a deacidification device for coal production and coking, comprising:

[0007] An ammonia steam desulfurization tower, wherein a smoke outlet channel is provided at the top of the ammonia steam desulfurization tower;

[0008] A ferry assembly, which is arranged at one side of the bottom end of the ammonia desulfurization tower, and obtains power through steam to drive the agitator frame and the air intake structure to operate;

[0009] An ammonia preheating pipe, the ammonia preheating pipe is fixedly arranged inside the ammonia steam desulfurization tower, an air stirring rack is arranged inside the ammonia preheating pipe, the air stirring rack is arranged at the output end of the steam pump, the air stirring rack is suitable for prolonging the residence time of steam around the ammonia preheating pipe, and the air stirring rack penetrates and is rotatably arranged on one side of the ammonia steam desulfurization tower;

[0010] An air intake structure is arranged at one side of the top of the ammonia steam desulfurization tower, and is used for conveying ammonia.

[0011] Furthermore, the air ferry assembly includes a protective shell, a steam pump and a steam outlet pipe are symmetrically arranged on the outer side of the protective shell, the steam pump is arranged above the steam outlet pipe, a driving fan is arranged on the inner side of the protective shell, a terminal rotor is fixedly arranged at one end of the driving fan, the terminal rotor penetrates and is rotatably arranged on one side of the protective shell, three first magnets are arranged in a circular distribution on the outer side of the terminal rotor, a second magnet is arranged below the terminal rotor, a connecting pressure plate is fixedly arranged at the bottom end of the second magnet, the connecting pressure plate is fixedly connected to the piston through a connecting rod, an outer cylinder is slidably arranged on the outer side of the piston, a receiving air pipe is fixedly arranged at one end of the outer cylinder, and a first air ferry pipe and a second air ferry pipe are fixedly arranged at the other end of the receiving air pipe.

[0012] Furthermore, the steam outlet pipe is fixedly arranged at one end of the first gas ferry pipe, and a steam delivery pipe is fixedly arranged at the other end of the first magnet, and the steam delivery pipe is arranged through the lower ammonia channel, and a short-circuit rod is symmetrically fixedly arranged at the bottom end of the connecting pressure plate, and a receiving ring plate is fixedly arranged at the other end of the short-circuit rod, and a return spring is fixedly arranged at the bottom end of the receiving ring plate, and a fixed ring plate is fixedly arranged at the other end of the return spring, and the fixed ring plate is fixedly arranged on the outside of the outer cylinder, and the receiving ring plate is slidably arranged on the outside of the outer cylinder, and an external protective cover is detachably arranged on one side of the protective shell, and the receiving air pipe passes through and is fixedly arranged at the bottom end of the external protective cover.

[0013] Furthermore, the air stirring rack is fixedly arranged at the other end of the driving fan, and the air stirring rack is arranged on the inner side of the ammonia water preheating tube.

[0014] Furthermore, a first blocking valve plate and a second blocking valve plate are respectively provided on the inner sides of the first gas transfer pipe and the second gas transfer pipe, and a rotating shaft is fixedly provided on the outer sides of the first blocking valve plate and the second blocking valve plate, and the first blocking valve plate is rotatably provided on the inner side of the first gas transfer pipe through the rotating shaft, and the second blocking valve plate is rotatably provided on the inner side of the second gas transfer pipe through the rotating shaft, and a limiting stop strip is provided on the end face of the second blocking valve plate, and the limiting stop strip is fixedly provided on the inner side of the second gas transfer pipe, and a limiting stop strip is provided on the end face of the first blocking valve plate, and the limiting stop strip is fixedly provided on the inner side of the first gas transfer pipe.

[0015] Furthermore, circular plates are rotatably arranged on the outer sides of both ends of the rotating shaft, and the circular plates are fixedly arranged on the outer side of the second gas transfer pipe. Torsion springs are fixedly arranged on both ends of the rotating shaft, and the other end of the torsion spring is fixedly connected to the circular plate. The end surfaces of the circular plates that are away from each other are detachably provided with torsion spring covers.

[0016] Furthermore, the air intake structure includes a connecting movable rod, one end of which is fixedly provided with a connecting circular plate, the bottom end of which is fixedly provided with a tension spring and a guide rod, the other end of which is fixedly provided with an exhaust plate, a plurality of closed-hole plates are rotatably provided at the top of the exhaust plate, a plurality of limit frames are fixedly provided at the top of the exhaust plate, an ammonia delivery pipe is fixedly provided at the other end of the tension spring, the guide rod passes through and is slidably provided at the top of the ammonia delivery pipe, and the exhaust plate is slidably provided on the inner side of the ammonia delivery pipe.

[0017] Furthermore, a load-bearing connecting plate is fixedly provided at the other end of the connecting movable rod, a second magnet is fixedly provided at the bottom end of the load-bearing connecting plate, a first delivery pipe and a second delivery pipe are provided at the other end and the outer side of the ammonia delivery pipe, the second delivery pipe and the first delivery pipe pass through and are fixedly provided on the outer side of the ammonia steam desulfurization tower, the second delivery pipe is provided above the containing plate, and the first delivery pipe is provided above the ammonia water steaming plate.

[0018] Furthermore, it also includes a gas suction pump, an ammonia water steaming tray and a receiving tray, the gas suction pump is arranged on the outside, the ammonia water steaming tray and the receiving tray are fixedly arranged inside the ammonia steaming desulfurization tower, the receiving tray is arranged above the ammonia water steaming tray, a plurality of ammonia water storage tanks are arranged on the top of the ammonia water steaming tray, a plurality of air outlet holes are opened on the top of the ammonia water steaming tray, the receiving tray is arranged in an inverted cone shape, a plurality of liquid blocking rings are fixedly arranged on the inner side of the receiving tray, a night outlet hole is opened at the bottom end of the receiving tray, a waste liquid outlet pipe is fixedly arranged at the bottom end of the receiving tray, the waste liquid outlet pipe passes through the ammonia steaming desulfurization tower, an infusion ring rack is arranged above the receiving tray, a desulfurizer injection pump is arranged at the input end of the infusion ring rack, and the desulfurizer injection pump is fixedly arranged on the outside of the top of the ammonia steaming desulfurization tower.

[0019] Furthermore, an ammonia delivery pump and a delivery connecting pipe are fixedly provided at both ends of the ammonia preheating pipe, an ammonia injection pump is fixedly provided at the other end of the delivery connecting pipe, an ammonia injection pipe is fixedly provided at the output end of the ammonia injection pump, and the ammonia infusion pipe is arranged above the ammonia steaming tray.

[0020] The technical solution provided by this application has at least the following technical effects or advantages:

[0021] 1. In the present application, by setting a steam pump, steam first passes through the steam pump and drives the gas stirring frame to rotate, so that the steam just entering the ammonia steam desulfurization tower can move around the ammonia preheating tube, so that the ammonia water inside the ammonia preheating tube can be heated by waste heat, reducing the ammonia water gasification time, improving the ammonia steaming efficiency, and thus improving the purification efficiency of the coal gas.

[0022] 2. The present application arranges a terminal rotor, a first magnet, a second magnet and a piston. Whenever the terminal rotor rotates one circle, the second magnet and the first magnet will move away from each other due to the repulsion of gravity, causing the piston to descend and perform piston motion, thereby accelerating the steam to enter the steam delivery pipe and then enter the ammonia steam desulfurization tower for ammonia steaming, making full use of steam power, saving energy consumption, accelerating steam movement, and reducing heat loss.

[0023] 3. In the present application, by setting up a holding tray, ammonia gas produced by ammonia evaporation will enter the top of the holding tray through the air intake structure, and a small amount of ammonia gas will gather at the bottom of the holding tray and accumulate again on the inner side of the ammonia steaming tray, thereby recovering part of the ammonia water and saving resource consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of an implementation method of the present application.

[0025] Figure 2 This is a schematic diagram of the left and right axonometric structure of an implementation scheme of the present application.

[0026] Figure 3 It is a schematic cross-sectional structure diagram of an implementation method of the present application.

[0027] Figure 4 Schematic diagram of the disassembled structure of the gas ferry assembly in the implementation manner of the present application.

[0028] Figure 5 Schematic diagram of the cross-sectional structure of the first gas ferry pipe and the second gas ferry pipe in the embodiment of the present application.

[0029] Figure 6 It is a schematic diagram of the disassembled structure of the air intake structure in the embodiment of the present application.

[0030] Figure 7 It is a schematic diagram of the combined structure of the ammonia water infusion pipe and the ammonia water steaming tray in the embodiment of the present application.

[0031] Figure 8 It is a schematic diagram of the structure of the holding tray in the implementation manner of the present application.

[0032] In the figure: 1, ammonia desulfurization tower; 101, lower ammonia channel; 102, smoke outlet channel; 2, steam pump; 201, protective shell; 202, steam outlet pipe; 203, driving fan; 2031, gas stirring frame; 204, terminal rotary head; 205, first magnet; 206, second magnet; 207, connecting pressure plate; 208, piston; 209, receiving ring plate; 210, outer cylinder; 211, return spring; 212, fixed ring plate; 213, receiving air pipe; 214, first gas transfer pipeline; 2141, first blocking valve plate; 215, second gas transfer pipeline; 2151, second blocking valve plate; 2152, rotating shaft; 2153, limit stop bar; 2154, round plate; 2155, torsion spring cover; 216, external protective hood; 217, steam delivery pipe; 3, ammonia preheating pipe; 301, ammonia delivery pump; 302, delivery connecting pipe; 303, ammonia injection pump; 304, ammonia infusion pipe; 4, gas suction pump; 5, desulfurizer injection pump; 501, infusion ring frame; 6, air intake structure; 601, connecting rod; 6011, load-bearing connecting plate; 602, connecting circular plate; 603, tension spring; 604, guide rod; 605, exhaust plate; 606, closed hole plate; 607, limit frame; 608, ammonia delivery pipe; 6081, second delivery pipe; 6082, first delivery pipe; 7, ammonia steaming plate; 701, ammonia container; 702, air outlet; 8, holding plate; 801, liquid blocking ring; 802, night outlet; 803, waste liquid outlet pipe. DETAILED DESCRIPTION

[0033] The embodiment of the present application discloses an ammonia steam desulfurization device for coal production and coking. Through the setting of 2, the steam first passes through the steam pump 2 and drives the gas stirring frame 2031 to rotate, so that the steam just entering the ammonia steam desulfurization tower 1 can move around the ammonia water preheating tube 3, so that the ammonia water inside the ammonia water preheating tube 3 can be heated by the waste heat, reducing the gasification time of the ammonia water, improving the ammonia steaming efficiency, and thus improving the purification efficiency of the coal gas.

[0034] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] Embodiment 1:

[0036] Reference Figure 1 , Figure 2 and Figure 3The embodiment of the present application discloses an ammonia desulfurization device for coal production and coking, comprising an ammonia desulfurization tower 1 and a gas ferry assembly which obtains power through steam and is suitable for driving an aeration frame 2031 and an air intake structure 6 to operate, and also comprises an ammonia preheating pipe 3, the ammonia preheating pipe 3 is fixedly arranged inside the ammonia desulfurization tower 1, an aeration frame 2031 is arranged on the inner side of the ammonia preheating pipe 3, the ammonia preheating pipe 3 is arranged at the output end of the steam pump 2, the aeration frame 2031 is suitable for prolonging the residence time of steam around the ammonia preheating pipe 3, and the aeration frame 2031 is arranged on one side of the ammonia desulfurization tower 1 through and rotationally.

[0037] Driven by steam delivery, the agitator frame 2031 can rotate, so that the steam around the ammonia preheating tube 3 can move, thereby increasing the time the steam stays around the ammonia preheating tube 3, so that the ammonia in the ammonia preheating tube 3 is preheated in advance, reducing the evaporation time of the ammonia and improving the efficiency of ammonia evaporation.

[0038] Among them, an ammonia delivery pump 301 and a delivery connecting pipe 302 are fixedly installed at both ends of the ammonia preheating pipe 3, an ammonia injection pump 303 is fixedly installed at the other end of the delivery connecting pipe 302, and an ammonia infusion pipe 304 is fixedly installed at the output end of the ammonia injection pump 303. The ammonia infusion pipe 304 is arranged above the ammonia steaming plate 7.

[0039] The preheated ammonia water can be pumped by the ammonia water injection pump 303 through the delivery connecting pipe 302 and reach the ammonia water infusion pipe 304, and then sprayed into the ammonia water container 701 provided on the top of the ammonia water steaming plate 7, so as to facilitate the ammonia steaming work.

[0040] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The air ferry assembly includes a protective shell 201, and a steam pump 2 and a steam outlet pipe 202 are symmetrically arranged on the outer side of the protective shell 201, and the steam pump 2 is arranged above the steam outlet pipe 202. A driving fan 203 is arranged on the inner side of the protective shell 201, and a terminal rotor 204 is fixedly arranged at one end of the driving fan 203. The terminal rotor 204 penetrates and is rotatably arranged on one side of the protective shell 201, and three first magnets 205 are arranged in a circular distribution on the outer side of the terminal rotor 204, and a second magnet 206 is arranged below the terminal rotor 204. A connecting pressure plate 207 is fixedly arranged at the bottom end of the second magnet 206, and the connecting pressure plate 207 is fixedly connected to a piston 208 through a connecting rod. An outer cylinder 210 is slidably arranged on the outer side of the piston 208, and a receiving air pipe 213 is fixedly arranged at one end of the outer cylinder 210, and a first air ferry pipe 214 and a second air ferry pipe 215 are fixedly arranged at the other end of the receiving air pipe 213.

[0041] After the steam enters the protective shell 201, it will enter the first gas pipe 214 through the steam outlet pipe 202. At the same time, the rotation of the driving fan 203 will drive the terminal rotary head 204 to rotate, and the first magnet 205 will make a circular motion. Whenever the first magnet 205 and the second magnet 206 are in the same vertical direction, due to the repulsion of gravity, the second magnet 206 will move away from the first magnet 205, so that the second magnet 206 drives the connecting pressure plate 207 and the piston 208 to descend. When the piston 208 descends, the steam will be pushed into the second gas pipe 215. At this time, the return spring 211 is in a compressed state. When the first magnet 205 is away from the second magnet 206, the piston 208 rises due to the elastic force of the return spring 211, so that the first gas pipe 214 is in an open state, so that the steam quickly enters the second gas pipe 215, so that the steam can be transported.

[0042] Among them, the steam outlet pipe 202 is fixedly set at one end of the first gas ferry pipe 214, and the other end of the first magnet 205 is fixedly set with a steam delivery pipe 217, which passes through the lower ammonia channel 101. A short-circuit rod is symmetrically fixedly set at the bottom end of the connecting pressure plate 207, and a receiving ring plate 209 is fixedly set at the other end of the short-circuit rod. A return spring 211 is fixedly set at the bottom end of the receiving ring plate 209, and a fixed ring plate 212 is fixedly set at the other end of the return spring 211. The fixed ring plate 212 is fixedly set on the outside of the outer cylinder 210, and the receiving ring plate 209 is slidably set on the outside of the outer cylinder 210. An external protective cover 216 is detachably set on one side of the protective shell 201, and a receiving air pipe 213 passes through and is fixedly set at the bottom end of the external protective cover 216.

[0043] The steam achieves an intermittent pumping effect under the conveying action, and the steam is ejected from the steam conveying pipe 217 to the inside of the ammonia steam desulfurization tower 1, wherein the intermittent pumping of the steam helps to increase the contact area and contact time between the ammonia water and the steam, thereby promoting the volatilization and separation of the ammonia gas, and further improving the ammonia steaming efficiency.

[0044] It should be noted that, see Figure 3 The air stirring frame 2031 is fixedly arranged at the other end of the driving fan 203 , and the air stirring frame 2031 is arranged on the inner side of the ammonia preheating tube 3 .

[0045] The driving fan 203 in the air ferry assembly is driven by steam and drives the air stirring frame 2031 to rotate together, thereby stirring the steam around the ammonia preheating tube 3, increasing the steam residence time, and achieving a preheating effect on the ammonia inside the ammonia preheating tube 3.

[0046] In this embodiment, refer to Figure 4 and Figure 5The first gas transfer pipe 214 and the second gas transfer pipe 215 are respectively provided with a first blocking valve disc 2141 and a second blocking valve disc 2151 on their inner sides. A rotating shaft 2152 is fixedly provided on the outer sides of the first blocking valve disc 2141 and the second blocking valve disc 2151. The first blocking valve disc 2141 is rotatably provided on the inner side of the first gas transfer pipe 214 through the rotating shaft 2152. The second blocking valve disc 2151 is rotatably provided on the inner side of the second gas transfer pipe 215 through the rotating shaft 2152. A limit stop bar 2153 is provided on the end face of the second blocking valve disc 2151. The baffle 2153 is fixedly arranged on the inner side of the second gas transfer pipe 215, and the end face of the first blocking valve plate 2141 is provided with a limit baffle 2153, and the limit baffle 2153 is fixedly arranged on the inner side of the first gas transfer pipe 214. Circular plates 2154 are rotatably arranged on the outer sides of both ends of the rotating shaft 2152, and the circular plates 2154 are fixedly arranged on the outer side of the second gas transfer pipe 215. Torsion springs are fixedly arranged on both ends of the rotating shaft 2152, and the other end of the torsion spring is fixedly connected to the circular plate 2154. The end faces of the circular plate 2154 that are away from each other are detachably provided with torsion spring covers 2155.

[0047] When the piston 208 is in the initial position, that is, the return spring 211 is in the original length state, the first blocking valve plate 2141 will be in the open state, and the two torsion springs on the outer side of the first gas pipe 214 are in the contracted state. Due to the limited stop bar 2153 set on the end face of the first gas pipe 214, when the piston 208 descends, the first blocking valve plate 2141 will only return to its original position and reach a closed state. At this time, the steam has entered between the first gas pipe 214 and the second gas pipe 215, and as the piston 208 descends, the second blocking valve plate 2151 will open. It should be noted that the opening directions of the first blocking valve plate 2141 and the second blocking valve plate 2151 are opposite, so as to achieve the effect of air intake and air exhaust. In this way, the steam can achieve the effect of intermittent twitching, thereby promoting the volatilization and separation of ammonia.

[0048] Embodiment 2:

[0049] Reference Figure 1 , Figure 2 and Figure 6The air intake structure 6 includes a connecting rod 601, one end of which is fixedly provided with a connecting circular plate 602, a bottom end of which is fixedly provided with a tension spring 603 and a guide rod 604, a suction plate 605 is fixedly provided at the other end of the guide rod 604, a top end of which is rotatably provided with a plurality of closed-hole plates 606, a top end of which is fixedly provided with a plurality of limit frames 607, a second end of which is fixedly provided with an ammonia delivery pipe 608, a guide rod 604 penetrates and is slidably provided at the top of the ammonia delivery pipe 608, At the other end, the exhaust plate 605 is slidably arranged on the inner side of the ammonia delivery pipe 608, and the other end of the connecting rod 601 is fixedly provided with a load-bearing connecting plate 6011, and the bottom end of the load-bearing connecting plate 6011 is fixedly provided with a second magnet 206, and the other end and the outer side of the ammonia delivery pipe 608 are provided with a first delivery pipe 6082 and a second delivery pipe 6081, and the second delivery pipe 6081 and the first delivery pipe 6082 pass through and are fixedly arranged on the outer side of the ammonia steam desulfurization tower 1, the second delivery pipe 6081 is arranged above the containing tray 8, and the first delivery pipe 6082 is arranged above the ammonia steam tray 7.

[0050] Due to the second magnet 206 disposed at the bottom end of the bearing connecting plate 6011, the movement of the first magnet 205 will drive the bearing connecting plate 6011 to move up and down, and the bearing connecting plate 6011 will drive the connecting movable rod 601 to move, and the movement of the connecting movable rod 601 will drive the connecting circular plate 602, the guide rod 604 and the exhaust plate 605 to move. When the connecting movable rod 601 rises, the tension spring 603 will extend. At this time, the exhaust plate 605 moves upward on the inner side of the ammonia delivery pipe 608, driving the ammonia inside the ammonia delivery pipe 608 into the second delivery pipe 6081, and enters the desulfurization layer through the second delivery pipe 6081 to contact with the coal gas. When the guide rod 604 When it is in the descending state, the tension spring 603 returns to its original state, the exhaust plate 605 will descend, and the closed-hole plate 606 will open upward. Due to the setting of the limit frame 607, the maximum opening angle of the closed-hole plate 606 will be limited, so that the closed-hole plate 606 can be closed when the exhaust plate 605 rises. After the closed-hole plate 606 is opened, ammonia can pass through, so that the ammonia can be intermittently filled into the interior of the ammonia desulfurization tower 1, and offset with the coal gas to improve the mixing efficiency, so that the ammonia can directly react with the nitrogen oxides to generate harmless or low-toxic substances, and the ammonia water will react with the acidic gas in the coal gas to form crystals, and the crystals will fall to the top of the containing plate 8.

[0051] See also Figure 3 , Figure 7 and Figure 8, and also includes a gas suction pump 4, an ammonia water steaming tray 7 and a receiving tray 8. The gas suction pump 4 is arranged on the outside of 1, and the ammonia water steaming tray 7 and the receiving tray 8 are fixedly arranged inside the ammonia steaming desulfurization tower 1. The receiving tray 8 is arranged above the ammonia water steaming tray 7. A plurality of ammonia water containing tanks 701 are arranged on the top of the ammonia water steaming tray 7, and a plurality of air outlet holes 702 are opened on the top of the ammonia water steaming tray 7.

[0052] Ammonia water evaporates to form ammonia gas, which goes up, and a small amount of ammonia gas adheres to the bottom of the containing tray 8, forming ammonia water that falls on the top of the ammonia water steaming tray 7, and part of the ammonia water falls to the bottom of the ammonia steaming desulfurization tower 1 through the air outlet 702, and can be discharged and collected from the lower ammonia channel 101, while the ammonia water that falls on the top of the ammonia water steaming tray 7 can continue to be evaporated.

[0053] Furthermore, in the present embodiment, the containing tray 8 is in an inverted cone shape, a plurality of liquid-blocking rings 801 are fixedly provided on the inner side of the containing tray 8, a night outlet hole 802 is provided at the bottom end of the containing tray 8, a waste liquid outlet pipe 803 is fixedly provided at the bottom end of the containing tray 8, the waste liquid outlet pipe 803 penetrates the ammonia steam desulfurization tower 1, an infusion ring frame 501 is provided above the containing tray 8, a desulfurizer injection pump 5 is provided at the input end of the infusion ring frame 501, and the desulfurizer injection pump 5 is fixedly provided on the outer side of the top end of the ammonia steam desulfurization tower 1.

[0054] The desulfurizer injection pump 5 can transport the desulfurizer, so that the desulfurizer is sprayed into the interior of the ammonia desulfurization tower 1 through the infusion ring frame 501 and contacts with the coal gas. The desulfurizer will fall to the top of the holding plate 8 and flow slowly. When the desulfurizer overflows the liquid blocking ring 801, the flow rate of the rich liquid will be slowed down, so that the desulfurizer can fully contact with the coal gas, and then flow to the next level, and flow to the night outlet 802 with part of the crystals, and be discharged to the outside from the waste liquid outlet pipe 803. After desulfurization, the coal gas can be discharged to the outside from the smoke outlet channel 102. The desulfurizer mainly removes sulfur dioxide in the coal gas through absorption and chemical reaction to generate salts such as ammonium sulfate, while ammonia can remove ammonia compounds in the coal gas to generate other substances that are easy to handle or recycle. In addition, ammonia can also react with other harmful substances in the coal gas, such as hydrogen sulfide, to achieve the simultaneous removal of multiple pollutants, thereby achieving the effect of purifying the coal gas.

[0055] Working principle: the ammonia delivery pump 301 is connected to an ammonia device externally, and pumps ammonia into the ammonia preheating pipe 3. The ammonia preheating pipe 3 is spirally arranged to improve its own heating capacity. At the same time, the steam is allowed to enter the protective shell 201 through the steam pump 2. The flow of steam causes the driving fan 203 in the air ferry assembly to start rotating. The rotation of the driving fan 203 drives the air stirring frame 2031 to rotate, so that the steam around the ammonia preheating pipe 3 can move, thereby increasing the time that the steam stays around the ammonia preheating pipe 3, so that the ammonia in the ammonia preheating pipe 3 is preheated in advance, thereby improving the ammonia steaming efficiency. The preheated ammonia is extracted by the ammonia injection pump 303 and can pass through the delivery connecting pipe 302 and reach the ammonia infusion pipe 304, so as to be sprayed on the ammonia container 701 provided on the top of the ammonia steaming plate 7, which is convenient for ammonia steaming;

[0056] After the steam enters the protective shell 201, it enters the first air ferry pipe 214 through the steam outlet pipe 202. At the same time, the rotation of the driving fan 203 drives the terminal rotary head 204 to rotate, and the first magnet 205 moves in a circular motion. Whenever the first magnet 205 and the second magnet 206 are in the same vertical direction, due to the repulsion of gravity, the second magnet 206 will move away from the first magnet 205, so that the second magnet 206 drives the connecting pressure plate 207 and the piston 208 to descend. When the piston 208 descends, the steam will be pushed into the second air ferry pipe 215. At this time, the return spring 211 is in a compressed state. When the first When the magnet 205 is away from the second magnet 206, the piston 208 rises due to the elastic force of the return spring 211. At this time, the second blocking valve plate 2151 is in a closed state, and the first blocking valve plate 2141 is in an open state. Steam can enter the second gas ferry pipe 215, and the torsion spring outside the first gas ferry pipe 214 is in a contracted state, and the torsion spring outside the second gas ferry pipe 215 is in the original state. Repeating this movement allows steam to intermittently enter the ammonia steam desulfurization tower 1. The intermittent pumping of steam helps to increase the contact area and contact time between ammonia water and steam, thereby promoting the volatilization and separation of ammonia, and thus improving the ammonia steaming efficiency;

[0057] After entering the ammonia steam desulfurization tower 1, the steam is stirred by the ammonia water preheating pipe 3, and as more and more steam enters, the steam goes up, thereby evaporating the ammonia water to form ammonia gas. The ammonia gas goes up, and a small amount of ammonia gas will adhere to the bottom of the holding tray 8, and form ammonia water that falls on the top of the ammonia water steaming tray 7, and part of the ammonia water will fall to the bottom of the ammonia steam desulfurization tower 1 through the air outlet 702, and then can be discharged and collected from the lower ammonia channel 101, and the ammonia water that falls on the top of the ammonia water steaming tray 7 can continue to steam ammonia, and the ammonia gas can enter the ammonia gas delivery pipe 608 through the first delivery pipe 6082, and enter the interior of the ammonia steam desulfurization tower 1 through the second delivery pipe 6081. The ammonia gas is located above the holding tray 8, and the space above the holding tray 8 is the desulfurization layer. The coal gas suction pump 4 will transport the coal gas or into the desulfurization layer, and the acid gas in the coal gas is desulfurized by the ammonia gas;

[0058] Among them, due to the second magnet 206 set at the bottom end of the bearing connecting plate 6011, the movement of the first magnet 205 will drive the bearing connecting plate 6011 to move up and down, and the bearing connecting plate 6011 will drive the connecting rod 601 to move, and the movement of the connecting rod 601 will drive the connecting circular plate 602, the guide rod 604 and the pumping plate 605 to move. When the connecting rod 601 rises, the tension spring 603 will extend. At this time, the pumping plate 605 moves upward on the inner side of the ammonia delivery pipe 608, driving the ammonia inside the ammonia delivery pipe 608 into the second delivery pipe 6081, and enters through the second delivery pipe 6081 The desulfurization layer is in contact with the coal gas. When the guide rod 604 is in a descending state, the tension spring 603 returns to its original state, the air extraction plate 605 descends, and the closed hole plate 606 opens upward. Due to the setting of the limit frame 607, the maximum opening angle of the closed hole plate 606 is limited, so that the closed hole plate 606 can be closed when the air extraction plate 605 rises. After the closed hole plate 606 is opened, ammonia can pass through, so that ammonia can achieve the effect of intermittently filling the interior of the steam ammonia desulfurization tower 1, and offset with the coal gas, improving the mixing efficiency, so that the ammonia and the acid gas are fully mixed and form crystals, and the crystals will fall to the top of the containing plate 8;

[0059] The desulfurizer injection pump 5 can transport the desulfurizer, so that the desulfurizer is sprayed into the interior of the ammonia desulfurization tower 1 through the infusion ring frame 501, and contacts with the coal gas to further remove the acid gas in the coal gas. The desulfurizer will fall to the top of the holding plate 8, and the desulfurizer will flow slowly. When the desulfurizer overflows the liquid blocking ring 801, the flow rate of the rich liquid will be slowed down, so that the desulfurizer can fully contact with the coal gas, and then it will flow to the next level, and flow to the night outlet 802 with part of the crystals, and be discharged to the outside from the waste liquid outlet pipe 803. After desulfurization, the coal gas can be discharged to the outside from the smoke outlet channel 102. The desulfurizer mainly removes sulfur dioxide through absorption and chemical reaction to generate salts such as ammonium sulfate, while ammonia can remove ammonia compounds in the coal gas to generate other substances that are easy to handle or recycle. In addition, ammonia can also react with other harmful substances in the coal gas, such as hydrogen sulfide, to achieve the simultaneous removal of multiple pollutants, thereby achieving the effect of purifying the coal gas.

[0060] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0061] What has been described above is only a preferred specific implementation manner of the embodiments of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical scheme and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A deacidification device for coal production and coking, characterized by: include: An ammonia steam desulfurization tower (1), wherein a smoke outlet passage (102) is provided at the top of the ammonia steam desulfurization tower (1); A ferry assembly, the ferry assembly being arranged at one side of the bottom end of the ammonia desulfurization tower (1), the ferry assembly obtaining power through steam to drive the agitation frame (2031) and the air intake structure (6) to operate; An ammonia preheating pipe (3), the ammonia preheating pipe (3) being fixedly arranged inside the ammonia steam desulfurization tower (1), an air stirring frame (2031) being arranged inside the ammonia preheating pipe (3), the air stirring frame (2031) being arranged at the output end of the steam pump (2), the air stirring frame (2031) being suitable for prolonging the residence time of steam around the ammonia preheating pipe (3), the air stirring frame (2031) penetrating and rotatably arranged on one side of the ammonia steam desulfurization tower (1); An air intake structure (6), wherein the air intake structure (6) is arranged on one side of the top end of the ammonia steam desulfurization tower (1), and the air intake structure (6) is used for conveying ammonia.

2. The ammonia distillation and deacidification device for coal production and coking as claimed in claim 1, characterized in that: The air ferry assembly comprises a protective shell (201), a steam pump (2) and a steam outlet pipe (202) are symmetrically arranged on the outer side of the protective shell (201), the steam pump (2) is arranged above the steam outlet pipe (202), a driving fan (203) is arranged on the inner side of the protective shell (201), a terminal rotary head (204) is fixedly arranged at one end of the driving fan (203), the terminal rotary head (204) penetrates and is rotatably arranged on one side of the protective shell (201), and the outer side of the terminal rotary head (204) is circumferentially distributed with three A magnet (205) is provided below the end-connecting rotating head (204); a second magnet (206) is fixedly provided at the bottom end of the second magnet (206); the connecting pressing plate (207) is fixedly connected to a piston (208) via a connecting rod; an outer tube (210) is slidably provided on the outer side of the piston (208); a receiving air pipe (213) is fixedly provided at one end of the outer tube (210); and a first air transfer pipe (214) and a second air transfer pipe (215) are fixedly provided at the other end of the receiving air pipe (213).

3. The ammonia distillation and deacidification device for coal production and coking as claimed in claim 2, characterized in that: The steam outlet pipe (202) is fixedly arranged at one end of the first gas ferry pipe (214); the other end of the first magnet (205) is fixedly arranged with a steam delivery pipe (217); the steam delivery pipe (217) penetrates the lower ammonia channel (101); a short-circuit rod is symmetrically fixedly arranged at the bottom end of the connecting pressure plate (207); the other end of the short-circuit rod is fixedly arranged with a receiving ring plate (209); the bottom end of the receiving ring plate (209) is fixedly arranged with A return spring (211), the other end of which is fixedly provided with a fixed ring plate (212), the fixed ring plate (212) being fixedly provided on the outside of the outer tube (210), the receiving ring plate (209) being slidably provided on the outside of the outer tube (210), one side of the protective shell (201) being detachably provided with an external protective cover (216), the receiving air pipe (213) passing through and fixedly provided on the bottom end of the external protective cover (216).

4. The ammonia distillation and deacidification device for coal production and coking as claimed in claim 1, characterized in that: The air stirring frame (2031) is fixedly arranged at the other end of the driving fan (203), and the air stirring frame (2031) is arranged on the inner side of the ammonia water preheating tube (3).

5. The ammonia distillation and deacidification device for coal production and coking as claimed in claim 2, characterized in that: A first blocking valve plate (2141) and a second blocking valve plate (2151) are respectively arranged on the inner sides of the first gas transfer pipe (214) and the second gas transfer pipe (215). A rotating shaft (2152) is fixedly arranged on the outer sides of the first blocking valve plate (2141) and the second blocking valve plate (2151). The first blocking valve plate (2141) is rotatably arranged on the inner side of the first gas transfer pipe (214) via the rotating shaft (2152). The second blocking valve plate (2151) is fixedly arranged on the outer sides of the first gas transfer pipe (214). 51) is rotatably arranged on the inner side of the second gas transfer pipe (215) through a rotating shaft (2152); the end surface of the second blocking valve plate (2151) is provided with a limit stop bar (2153), and the limit stop bar (2153) is fixedly arranged on the inner side of the second gas transfer pipe (215); the end surface of the first blocking valve plate (2141) is provided with a limit stop bar (2153), and the limit stop bar (2153) is fixedly arranged on the inner side of the first gas transfer pipe (214).

6. The ammonia distillation and deacidification device for coal production and coking as claimed in claim 5, characterized in that: Circular plates (2154) are rotatably arranged on the outer sides of both ends of the rotating shaft (2152), and the circular plates (2154) are fixedly arranged on the outer side of the second air ferry pipe (215). Torsion springs are fixedly arranged on both ends of the rotating shaft (2152), and the other end of the torsion spring is fixedly connected to the circular plate (2154). The end surfaces of the circular plate (2154) that are away from each other are detachably provided with torsion spring covers (2155).

7. The ammonia distillation and deacidification device for coal production and coking as claimed in claim 1, characterized in that: The air intake structure (6) includes a connecting movable rod (601), one end of which is fixedly provided with a connecting circular plate (602), the bottom end of which is fixedly provided with a tension spring (603) and a guide rod (604), the other end of which is fixedly provided with an exhaust plate (605), the top end of which is rotatably provided with a plurality of closed-hole plates (606), the top end of which is fixedly provided with a plurality of limit frames (607), the other end of which is fixedly provided with an ammonia delivery pipe (608), the guide rod (604) passes through and is slidably provided at the top end of the ammonia delivery pipe (608), and the exhaust plate (605) is slidably provided on the inner side of the ammonia delivery pipe (608).

8. The device for deacidification by distillation of ammonia for coking in coal production as claimed in claim 7, characterized in that: The other end of the connecting movable rod (601) is fixedly provided with a bearing connecting plate (6011), and the bottom end of the bearing connecting plate (6011) is fixedly provided with a second magnet (206). The other end and the outer side of the ammonia gas delivery pipe (608) are provided with a first delivery pipe (6082) and a second delivery pipe (6081), and the second delivery pipe (6081) and the first delivery pipe (6082) pass through and are fixedly provided on the outer side of the ammonia steam desulfurization tower (1), the second delivery pipe (6081) is provided above the containing plate (8), and the first delivery pipe (6082) is provided above the ammonia water steaming plate (7).

9. The ammonia distillation and deacidification device for coal production and coking as claimed in claim 1, characterized in that: It also comprises a gas suction pump (4), an ammonia steam tray (7) and a receiving tray (8), wherein the gas suction pump (4) is arranged on the outside of (1), the ammonia steam tray (7) and the receiving tray (8) are fixedly arranged inside the ammonia steam desulfurization tower (1), the receiving tray (8) is arranged above the ammonia steam tray (7), a plurality of ammonia storage tanks (701) are arranged at the top of the ammonia steam tray (7), a plurality of air outlet holes (702) are opened at the top of the ammonia steam tray (7), the receiving tray (8) is arranged in an inverted cone shape, and the receiving tray (8) A plurality of liquid blocking rings (801) are fixedly arranged on the inner side of the receiving tray (8), a night outlet hole (802) is opened at the bottom end of the receiving tray (8), a waste liquid outlet pipe (803) is fixedly arranged at the bottom end of the receiving tray (8), and the waste liquid outlet pipe (803) is arranged through the ammonia steam desulfurization tower (1), and a liquid infusion ring frame (501) is arranged above the receiving tray (8), and a desulfurizing agent injection pump (5) is arranged at the input end of the liquid infusion ring frame (501), and the desulfurizing agent injection pump (5) is fixedly arranged on the outer side of the top end of the ammonia steam desulfurization tower (1).

10. The ammonia distillation and deacidification device for coal production and coking as claimed in claim 1, characterized in that: An ammonia delivery pump (301) and a delivery connecting pipe (302) are fixedly provided at both ends of the ammonia preheating pipe (3), an ammonia injection pump (303) is fixedly provided at the other end of the delivery connecting pipe (302), an ammonia injection pipe (304) is fixedly provided at the output end of the ammonia injection pump (303), and the ammonia injection pipe (304) is arranged above the ammonia steaming plate (7).

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