CN116354116A - Conveying system is handled to dry process acetylene sludge storehouse carbide slag - Google Patents

Conveying system is handled to dry process acetylene sludge storehouse carbide slag Download PDF

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Publication number
CN116354116A
CN116354116A CN202310206922.7A CN202310206922A CN116354116A CN 116354116 A CN116354116 A CN 116354116A CN 202310206922 A CN202310206922 A CN 202310206922A CN 116354116 A CN116354116 A CN 116354116A
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gas
nitrogen
pipeline
conveying
nitrogen charging
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李国栋
梁亚栋
殷煜武
赵海意
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Jiangsu Zhongwu Environmental Engineering Design And Research Group Co ltd
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Jiangsu Zhongwu Environmental Engineering Design And Research Group Co ltd
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Priority to CN202310206922.7A priority Critical patent/CN116354116A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
    • B01D53/10—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1493—Selection of liquid materials for use as absorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
    • B01D53/229—Integrated processes (Diffusion and at least one other process, e.g. adsorption, absorption)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/28—Selection of materials for use as drying agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/36—Arrangements of containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/40—Feeding or discharging devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/58—Devices for accelerating or decelerating flow of the materials; Use of pressure generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
    • B01D2053/221—Devices
    • B01D2053/223—Devices with hollow tubes
    • B01D2053/224—Devices with hollow tubes with hollow fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/10—Inorganic absorbents
    • B01D2252/103—Water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/112—Metals or metal compounds not provided for in B01D2253/104 or B01D2253/106
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/20—Organic adsorbents
    • B01D2253/202—Polymeric adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/10—Nitrogen

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention discloses a dry acetylene sludge warehouse carbide slag treatment conveying system, which relates to the technical field of acetylene carbide slag treatment and comprises a gas replacement mechanism, wherein the gas replacement mechanism comprises a nitrogen charging part and a pressure relief part, the nitrogen charging part and the pressure relief part are sequentially arranged along the conveying direction of a conveying pipeline, the nitrogen charging part comprises a nitrogen charging cavity for charging nitrogen into the conveying pipeline, the pressure relief part comprises a pressure relief cavity for pumping out the gas in the conveying pipeline, the pressure relief cavity is connected with a gas treatment mechanism for purifying the nitrogen, and the gas treatment mechanism is connected with a nitrogen charging tank through a pipeline to supply the purified nitrogen into the nitrogen charging tank so as to realize the recycling of the nitrogen. The gas replacement mechanism replaces harmful gas in the conveying pipeline with stable nitrogen, so that the concentration of the nitrogen in the conveying pipeline is improved, meanwhile, the stability of the pressure in the conveying pipeline is guaranteed, the safety of transportation is further improved, the replaced harmful gas can be treated, and the harmful gas is prevented from being directly discharged to the external environment.

Description

Conveying system is handled to dry process acetylene sludge storehouse carbide slag
Technical Field
The invention relates to the technical field of acetylene sludge treatment, in particular to a dry-method acetylene sludge warehouse acetylene sludge treatment conveying system.
Background
Compared with the traditional wet acetylene preparation process, the dry acetylene process is a process in which a little more than theoretical amount of water is sprayed on the calcium carbide powder in a fog state to hydrolyze the calcium carbide powder, and the generated calcium carbide slag is dry powder with very low water content. The carbide slag is mainly Ca (OH) 2, can be used as a substitute for slaked lime, and is widely used in the industries of construction, chemical industry, metallurgy, agriculture and the like. Because of the particularity of the dry acetylene sludge ash components, the risk of deflagration occurs during the sealed circulation transportation.
In the prior art, when carbide slag is transported, the closed circulation process in the whole system needs to be subjected to one-time nitrogen charging, timed nitrogen supplementing and nitrogen protecting explosion prevention treatment. However, the prior art only reduces the risk of deflagration of the conveying pipeline by the stability of nitrogen as inert gas, and sulfur dioxide, acetylene, monosilane, ammonia and the like in the conveying pipeline are not eliminated, and the harmful gases are discharged out of the conveying pipeline along with carbide slag to pollute the atmosphere. Therefore, a dry acetylene sludge warehouse carbide sludge treatment conveying system is needed to overcome the defects of the prior art.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a dry acetylene sludge warehouse carbide slag treatment conveying system which can replace harmful gas in a conveying pipeline by nitrogen and treat the harmful gas, and can further reduce the possibility of deflagration of the conveying pipeline.
In order to achieve the aim, the dry acetylene sludge warehouse carbide slag treatment conveying system comprises a buffer bin, a star discharger, a dense-phase pusher and a conveying pipeline, wherein the bottom of the buffer bin is connected with the conveying pipeline through the star discharger, the conveying pipeline is internally provided with the dense-phase pusher for conveying the acetylene sludge dense-phase, the dry acetylene sludge warehouse carbide slag treatment conveying system further comprises a gas replacement mechanism, the gas replacement mechanism comprises a nitrogen charging part and a pressure relief part, the nitrogen charging part and the pressure relief part are sequentially arranged along the conveying pipeline conveying direction, the nitrogen charging part comprises a nitrogen charging cavity for charging nitrogen into the conveying pipeline, the pressure relief part comprises a pressure relief chamber for pumping out the gas in the conveying pipeline, the pressure relief chamber is connected with a gas treatment mechanism for purifying the nitrogen, and the gas treatment mechanism is connected with the nitrogen charging tank through a pipeline to supplement the purified nitrogen into the nitrogen charging tank so as to realize the recycling of the nitrogen.
Preferably, the nitrogen charging chamber is arranged above the carbide slag conveying path, a first partition plate is arranged at the bottom of the nitrogen charging chamber, a first valve port is arranged between the tail end of the first partition plate in the conveying direction and the inner wall of the conveying pipeline, an air supply pipe is arranged along the horizontal direction in the nitrogen charging chamber, one end of the air supply pipe is connected with an air inlet pipe, the other end of the air supply pipe is connected with an air outlet pipe, the air inlet pipe extends out of the nitrogen charging chamber and is connected with a nitrogen charging device, and an included angle between the air outlet direction of the air outlet pipe and the conveying direction of the carbide slag is an acute angle.
Preferably, the decompression chamber is arranged on one side of the carbide slag conveying path, a second partition plate is arranged between the decompression chamber and the conveying pipeline, a second valve port is arranged between the front end of the second partition plate in the conveying direction and the inner wall of the conveying pipeline, an air duct is arranged in the horizontal direction in the decompression chamber, one end of the air duct is connected with an exhaust pipe, the other end of the air duct is connected with an air duct, the exhaust direction of the exhaust pipe and the conveying direction included angle of the carbide slag are acute angles, and the air duct extends out of the decompression chamber and is connected with the gas treatment mechanism through a negative pressure fan.
Preferably, a pressure sensor for detecting the pressure inside the pipe is also provided in the conveying pipe.
Preferably, the first valve port and the second valve port are provided with filter screens, and the filter screens are made of rubber materials.
Preferably, the gas treatment mechanism comprises a cyclone separation tower, a gas separation tower and a gas separator, wherein an air inlet of the cyclone separation tower is connected with a gas pipe, an air outlet of the cyclone separation tower is connected with an air inlet pipeline of the gas separation tower, an air outlet pipeline of the gas separation tower is connected with an inlet of the gas separator through a gas dryer, and an outlet of the gas separator is connected with a nitrogen charging tank.
Preferably, the air inlet pipeline of the gas separation tower is arranged at the lower position of the side wall, the inside of the gas separation tower is sequentially provided with an aeration tank, a drying layer and an adsorption layer from bottom to top, wherein water is injected into the aeration tank and laid in the aeration tank, the water is in a state of passing through the aeration pipeline, the drying layer is filled with water-absorbent resin, and the adsorption layer is filled with powdery potassium hydroxide.
Preferably, the aeration pipeline comprises a support frame, an aeration main pipe and an aeration branched pipe, wherein the support frame is arranged at the bottoms of the aeration main pipe and the aeration branched pipe, an air inlet of the aeration main pipe is connected with an air inlet pipeline of the gas separation tower, two sides of the aeration main pipe are respectively connected with a plurality of aeration branched pipes, and a plurality of aeration holes are uniformly formed in the upper end face of each aeration branched pipe.
Preferably, a hollow fiber membrane group for separating acetylene and nitrogen is arranged in the gas separator, an outer membrane exhaust port of the gas separator is connected with an acetylene collecting device, and an inner membrane exhaust port of the gas separator is connected with a nitrogen charging tank.
Preferably, the device further comprises a discharging part, wherein the discharging part is arranged at the tail end of the conveying pipeline, the discharging part is connected with a discharging storage bin through a star-shaped discharger, the bottom of the storage bin is connected with a discharging bulk machine for discharging carbide slag stored in the storage bin, and the storage bin is connected with a nitrogen charging tank through a nitrogen charging pipeline.
The invention has the following beneficial effects:
1. the harmful gas in the conveying pipeline is continuously replaced by the stable nitrogen through the gas replacement mechanism, so that the concentration of the nitrogen in the conveying pipeline is improved, meanwhile, the stability of the pressure in the conveying pipeline is guaranteed, the safety of transportation is further improved, the harmful gas which is replaced can be treated, the harmful gas is prevented from being directly discharged to the external environment, and the environmental safety is protected.
2. The gas treatment mechanism is used for gradually separating the gas outside the replaced conveying pipeline, separating and purifying the nitrogen, and the purified nitrogen is returned to the nitrogen charging tank again for nitrogen charging, so that the recycling of the nitrogen can be realized, and the purification and recovery of the acetylene gas can be realized.
Drawings
The invention is further described and illustrated below with reference to the accompanying drawings.
Fig. 1 is a schematic overall structure of a dry process acetylene sludge storage carbide slag treatment conveying system of embodiment 1 of the present invention.
Fig. 2 is a schematic diagram of a nitrogen charging portion of the dry acetylene sludge warehouse carbide slag treatment delivery system of fig. 1.
Fig. 3 is a schematic diagram of a pressure release part of the dry acetylene sludge warehouse carbide slag treatment conveying system in fig. 1.
Fig. 4 is a schematic diagram of the internal structure of a gas separation tower of the dry acetylene sludge warehouse carbide slag treatment conveying system in fig. 1.
Fig. 5 is a schematic view of the structure of an aeration pipe of the gas separation column of fig. 4.
Reference numerals: 1. a buffering bin; 2. star discharger; 3. a delivery conduit; 4. a nitrogen charging section; 4-1, a nitrogen charging chamber; 4-2, a first separator; 4-3, a filter screen; 4-4, an air supply pipe; 4-5, an air inlet pipe; 4-6, an air outlet pipe; 5. a pressure relief portion; 5-1, a pressure release chamber; 5-2, a second separator; 5-3, an exhaust tube; 5-4, an air duct; 5-5, a gas pipe; 6. a storage bin; 7. discharging and loading machine; 8. a nitrogen charging pipeline; 9. a pressure sensor; 10. a cyclone separation tower; 11. a gas separation column; 11-1, an aeration tank; 11-2, an aeration pipeline; 11-3, drying the layer; 11-4, an adsorption layer; 11-5, supporting frames; 11-6, an aeration main pipe; 11-7, aerating branch pipes; 11-8, aeration holes; 12. a gas dryer; 13. a gas separator; 14. and (5) filling nitrogen into the tank.
Detailed Description
The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.
The invention provides a dry acetylene sludge warehouse carbide slag treatment conveying system, which comprises a buffer bin 1, a star discharger 2, a dense phase pusher and a conveying pipeline 3, wherein the bottom of the buffer bin 1 is connected with the conveying pipeline 3 through the star discharger 2, and the conveying pipeline 3 is internally provided with the dense phase pusher for conveying the acetylene carbide slag dense phase.
In the embodiment, the carbide slag in the dry acetylene sludge warehouse contains acetylene, ca (OH) 2, caC2 and other components, and the water content can reach 5-20%. The carbide slag produced by producing acetylene by adopting a dry process is stored in the buffer bin 1, the inner layer of the conveying pipeline 3 adopts ceramic or polytetrafluoroethylene lining to prevent static electricity from causing deflagration, when the carbide slag needs to be conveyed, the star discharger 2 conveys the carbide bin in the buffer bin 1 into the conveying pipeline 3, the conveying pipeline 3 is internally provided with a dense-phase pusher, the chain piece of the dense-phase pusher in the conveying pipeline 3 provides thrust to push the material to circularly move in the machine, and the material is conveyed to the storage bin 6 through the star discharger 2 and the action of gravity and is discharged to a truck in batches through the bulk machine and leaves the yard.
As shown in fig. 1, the dry acetylene sludge warehouse carbide slag treatment conveying system further comprises a gas replacement mechanism, the gas replacement mechanism comprises a nitrogen charging part 4 and a pressure relief part 5, the nitrogen charging part 4 and the pressure relief part 5 are sequentially arranged along the conveying direction of the conveying pipeline 3, the nitrogen charging part 4 comprises a nitrogen charging cavity 4-1 for charging nitrogen into the conveying pipeline 3, the pressure relief part 5 comprises a pressure relief chamber 5-1 for extracting gas in the conveying pipeline 3, the pressure relief chamber 5-1 is connected with a gas treatment mechanism for purifying nitrogen, and the gas treatment mechanism is connected with a nitrogen charging tank 14 through a pipeline to supply purified nitrogen into the nitrogen charging tank 14 so as to realize the recycling of the nitrogen. The harmful gas in the conveying pipeline 3 is replaced by stable nitrogen through the gas replacement mechanism, so that the concentration of the nitrogen in the conveying pipeline 3 is improved, meanwhile, the stability of the pressure in the conveying pipeline 3 is ensured, the safety of transportation is further improved, the harmful gas which is replaced can be treated, the harmful gas is prevented from being directly discharged to the external environment, and the environmental safety is protected. And meanwhile, the gas outside the conveying pipeline 3 is treated through the gas treatment mechanism, the nitrogen is separated and purified, and the purified nitrogen is returned to the nitrogen charging tank 14 again for nitrogen charging, so that the recycling of the nitrogen can be realized.
As shown in fig. 2, in this embodiment, the nitrogen charging chamber 4-1 is disposed above the carbide slag conveying path, the bottom of the nitrogen charging chamber 4-1 is provided with the first partition board 4-2, the first partition board 4-2 is disposed between the end of the conveying direction and the inner wall of the conveying pipeline 3, the air supply pipe 4-4 is disposed along the horizontal direction in the nitrogen charging chamber 4-1, one end of the air supply pipe 4-4 is connected with the air inlet pipe 4-5, the other end is connected with the air outlet pipe 4-6, the air inlet pipe 4-5 extends out of the nitrogen charging chamber 4-1 to be connected with the nitrogen charging device, and the included angle between the air outlet direction of the air outlet pipe 4-6 and the conveying direction of the carbide slag is an acute angle.
The nitrogen-filled chamber 4-1 protrudes from the transfer duct 3 such that the nitrogen-filled chamber 4-1 does not affect the transport efficiency of the transfer duct 3. The filter screen 4-3 at the first valve port is made of rubber, so that the blocking of the conveying pipeline 3 caused by the entering of carbide slag into the nitrogen charging cavity 4-1 can be prevented, and meanwhile, the filter screen 4-3 made of rubber can prevent the generation of static electricity to cause the deflagration of the conveying pipeline 3. Nitrogen in the nitrogen tank is obliquely discharged from the air outlet pipe 4-6 through the air inlet pipe 4-5 and the air supply pipe 4-4, deflagration can be prevented from occurring in the conveying pipeline 3 by utilizing the stability of the nitrogen, meanwhile, the included angle between the air outlet direction of the air outlet pipe 4-6 and the conveying direction of the carbide slag is an acute angle, the included angle between the nitrogen charging direction and the air flowing direction in the conveying pipeline 3 is reduced, excessive blowing of dust of the carbide slag is avoided, and the content of the dust in the conveying pipeline 3 is reduced.
As shown in fig. 3, in this embodiment, a pressure release chamber 5-1 is disposed on one side of a carbide slag conveying path, a second partition 5-2 is disposed between the pressure release chamber 5-1 and a conveying pipeline 3, a second valve port is disposed between the front end of the second partition 5-2 in the conveying direction and the inner wall of the conveying pipeline 3, an air duct 5-4 is disposed along the horizontal direction in the pressure release chamber 5-1, one end of the air duct 5-4 is connected with an air extraction pipe 5-3, the other end is connected with an air delivery pipe 5-5, the air extraction direction of the air extraction pipe 5-3 and the conveying direction included angle of carbide slag are acute angles, and the air delivery pipe 5-5 extends out of the pressure release chamber 5-1 and is connected with a gas treatment mechanism through a negative pressure fan.
The relief chamber 5-1 protrudes from the transfer duct 3 such that the relief chamber 5-1 does not affect the transport efficiency of the transfer duct 3. The filter screen 4-3 at the second valve port is made of rubber, so that the blocking of the conveying pipeline 3 caused by the entering of carbide slag into the pressure release chamber 5-1 can be prevented, and meanwhile, the filter screen 4-3 made of rubber can prevent the generation of static electricity to cause the deflagration of the conveying pipeline 3. The gas in the conveying pipeline 3 is discharged by the exhaust pipe 5-3, the gas guide pipe 5-4 and the gas conveying pipe 5-5 through the negative pressure fan, so that the content of harmful gas and dust in the conveying pipeline 3 can be effectively reduced, and meanwhile, the included angle between the exhaust direction of the exhaust pipe 5-3 and the conveying direction of the carbide slag is an acute angle, so that excessive suction of dust in the exhaust process is avoided.
In the carbide slag conveying process, the nitrogen charging chamber 4-1 and the pressure relief chamber 5-1 do not stop working, and the gas in the conveying pipeline 3 is continuously replaced, so that the concentration of harmful gas in the conveying pipeline 3 can be effectively reduced.
As shown in fig. 1, in the present embodiment, a pressure sensor 9 for detecting the pressure inside the pipe is also provided inside the conveying pipe 3. The pressure sensor 9 can be matched with the pressure release chamber 5-1, when the pressure in the conveying pipeline 3 exceeds a set threshold value, the pressure release power of the pressure release chamber 5-1 is improved, and safety accidents caused by overlarge pressure in the conveying pipeline 3 are prevented.
As shown in fig. 1 and 4, the gas treatment mechanism comprises a cyclone separation tower 10, a gas separation tower 11 and a gas separator 13, wherein an air inlet of the cyclone separation tower 10 is connected with a gas pipe 5-5, an air outlet of the cyclone separation tower is connected with an air inlet pipeline of the gas separation tower 11, an air outlet pipeline of the gas separation tower 11 is connected with an inlet of the gas separator 13, and an outlet of the gas separator 13 is connected with a nitrogen charging tank 14.
In this embodiment, the cyclone separation tower 10 is mainly used for separating dust in gas, the gas separation tower 11 is used for separating sulfur dioxide, ammonia, arsine, monosilane and the like in the replaced gas, the gas separator 13 is used for separating acetylene and nitrogen, finally the nitrogen content in the gas is obviously improved, and the nitrogen is stored in the nitrogen filling pipe, so that the recycling of the nitrogen is realized.
In this embodiment, a gas dryer 12 is further disposed between the air outlet pipe of the gas separation tower 11 and the gas separator 13. The gas dryer 12 is a prior art, and is mainly used for further drying the gas, reducing the moisture in the gas, so that the gas can be normally separated in the gas separator 13.
As shown in fig. 4, the air inlet pipe of the gas separation tower 11 is arranged at the lower position of the side wall, the aeration tank 11-1, the drying layer 11-3 and the adsorption layer 11-4 are sequentially arranged in the gas separation tower 11 from bottom to top, wherein water is injected into the aeration tank 11-1 and the aeration pipe 11-2 is paved, the water is immersed in the aeration pipe 11-2, the water absorbing resin is filled in the drying layer 11-3, and the powdery potassium hydroxide is filled in the adsorption layer 11-4.
As shown in FIG. 5, the aeration pipe 11-2 comprises a supporting frame 11-5, an aeration main pipe 11-6 and an aeration branch pipe 11-7, wherein the supporting frame 11-5 is arranged at the bottoms of the aeration main pipe 11-6 and the aeration branch pipe 11-7, an air inlet of the aeration main pipe 11-6 is connected with an air inlet pipe of the gas separation tower 11, two sides of the aeration main pipe 11-6 are respectively connected with a plurality of aeration branch pipes 11-7, and a plurality of aeration holes 11-8 are uniformly formed in the upper end face of each aeration branch pipe 11-7.
In this embodiment, the gas separated by the powder separation tower 10 contains sulfur dioxide, ammonia, arsine, monosilane, acetylene and other components, the gas firstly enters the aeration branch pipes 11-7 through the aeration main pipe 11-6 respectively, the gas is evenly discharged from the aeration holes 11-8 of the aeration branch pipes 11, the gas is fully contacted with water, the sulfur dioxide, the ammonia, the arsine and the like in the gas are dissolved in the water, the rest gas is mixed with monosilane, acetylene and nitrogen which are insoluble in water, the rest gas continuously moves upwards under the action of negative pressure, firstly, the rest gas passes through the drying layer 11-3, the drying layer 11-3 is filled with water-absorbing resin, the water absorbing resin absorbs water vapor carried in the rest gas, the water content in the rest gas is reduced, then the rest gas continuously passes through the adsorption layer 11-4, the adsorption layer 11-4 is filled with powdery potassium hydroxide, the potassium hydroxide has good adsorption effect on the monosilane gas, and finally the rest acetylene and nitrogen are also remained in the gas.
In this embodiment, the gas separator 13 is built with a hollow fiber membrane module for separating acetylene and nitrogen, the gas separator 13 has an external discharge port connected to an acetylene collecting device, and an internal discharge port connected to a nitrogen charging tank 14. Under pressure, gas molecules adsorb, diffuse, and then permeate out of the membrane on the membrane wall. Fast gas with high permeation rate such as acetylene seeps out from the inner side of high pressure through the fiber wall and is discharged out of the membrane group; nitrogen is slow gas with low permeation rate, continuously stays in the hollow fiber membrane, and is discharged from the extreme end of the membrane group, so that the separation of the nitrogen and acetylene is realized.
As shown in fig. 1, the dry acetylene sludge warehouse carbide slag treatment conveying system further comprises a discharging part, the discharging part is arranged at the tail end of the conveying pipeline 3, the discharging part is connected with a discharging storage bin 6 through a star discharger 2, the bottom of the storage bin 6 is connected with a discharging bulk machine 7 for discharging carbide slag stored in the storage bin 6, and the storage bin 6 is further connected with a nitrogen charging tank 14 through a nitrogen charging pipeline 8.
In this embodiment, the nitrogen charging pipeline 8 can supplement nitrogen in the nitrogen charging tank 14 into the storage bin 6 to improve the stability of the storage bin 6 and reduce the risk of deflagration of the storage bin 6.
The above detailed description is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention. Various modifications, substitutions and improvements of the technical scheme of the present invention will be apparent to those skilled in the art from the description and drawings provided herein without departing from the spirit and scope of the invention. The scope of the invention is defined by the claims.

Claims (10)

1. The acetylene sludge warehouse carbide sludge treatment conveying system comprises a slow storage bin, a star discharger, a dense-phase pusher and a conveying pipeline, wherein the bottom of the slow storage bin is connected with the conveying pipeline through the star discharger, the conveying pipeline is internally provided with the dense-phase pusher for conveying the acetylene sludge in a dense-phase manner,
still include gas displacement mechanism, gas displacement mechanism includes nitrogen charging portion and pressure release portion, nitrogen charging portion and pressure release portion set gradually along pipeline transportation direction, wherein nitrogen charging portion is including being used for filling the nitrogen charging cavity of nitrogen gas in the pipeline, pressure release portion is including being used for the pressure release room that gas in the pipeline was taken out, and pressure release room is connected and is used for purifying the gas processing mechanism of nitrogen gas, gas processing mechanism fills nitrogen gas after the purification into the nitrogen charging tank through the pipe connection and realizes the cyclic utilization of nitrogen gas in the nitrogen charging tank.
2. The dry acetylene sludge warehouse carbide slag treatment conveying system according to claim 1, wherein the nitrogen charging chamber is arranged above a carbide slag conveying path, a first partition plate is arranged at the bottom of the nitrogen charging chamber, a first valve port is arranged between the tail end of the first partition plate in the conveying direction and the inner wall of the conveying pipeline, an air supply pipe is arranged along the horizontal direction in the nitrogen charging chamber, one end of the air supply pipe is connected with an air inlet pipe, the other end of the air supply pipe is connected with an air outlet pipe, the air inlet pipe extends out of the nitrogen charging chamber and is connected with a nitrogen charging device, and an included angle between the air outlet direction of the air outlet pipe and the conveying direction of carbide slag is an acute angle.
3. The dry acetylene sludge warehouse carbide slag treatment conveying system according to claim 2, wherein the pressure release chamber is arranged on one side of a carbide slag conveying path, a second partition plate is arranged between the pressure release chamber and the conveying pipeline, a second valve port is arranged between the front end of the second partition plate in the conveying direction and the inner wall of the conveying pipeline, an air duct is arranged in the horizontal direction in the pressure release chamber, one end of the air duct is connected with an exhaust pipe, the other end of the air duct is connected with an air duct, the included angle between the exhaust direction of the exhaust pipe and the conveying direction of the carbide slag is an acute angle, and the air duct extends out of the pressure release chamber and is connected with the gas treatment mechanism through a negative pressure fan.
4. A dry process acetylene sludge treatment conveying system according to claim 3, wherein a pressure sensor for detecting the pressure inside the conveying pipeline is further arranged in the conveying pipeline.
5. A dry method acetylene sludge treatment conveying system according to claim 3, wherein the first valve port and the second valve port are provided with filter screens, and the filter screens are made of rubber materials.
6. The dry acetylene sludge treatment conveying system according to claim 1, wherein the gas treatment mechanism comprises a cyclone separation tower, a gas separation tower and a gas separator, an air inlet of the cyclone separation tower is connected with a gas pipe, an air outlet of the cyclone separation tower is connected with an air inlet pipeline of the gas separation tower, an air outlet pipeline of the gas separation tower is connected with an inlet of the gas separator through a gas dryer, and an outlet of the gas separator is connected with a nitrogen charging tank.
7. The dry acetylene sludge treatment conveying system according to claim 6, wherein an air inlet pipeline of the gas separation tower is arranged at a position below the side wall, an aeration tank, a drying layer and an adsorption layer are sequentially arranged inside the gas separation tower from bottom to top, water is injected into the aeration tank and paved into the aeration tank, the water is used for passing through the aeration pipeline, water absorbing resin is filled in the drying layer, and powdery potassium hydroxide is filled in the adsorption layer.
8. The dry acetylene sludge warehouse carbide slag treatment conveying system according to claim 7, wherein the aeration pipeline comprises a support frame, an aeration main pipe and aeration branch pipes, the support frame is arranged at the bottoms of the aeration main pipe and the aeration branch pipes, an air inlet of the aeration main pipe is connected with an air inlet pipeline of the gas separation tower, two sides of the aeration main pipe are respectively connected with a plurality of aeration branch pipes, and a plurality of aeration holes are uniformly formed in the upper end face of each aeration branch pipe.
9. The dry acetylene sludge warehouse carbide slag treatment conveying system according to claim 6, wherein a hollow fiber membrane group for separating acetylene and nitrogen is arranged in the gas separator, an external membrane outlet of the gas separator is connected with an acetylene collecting device, and an internal membrane outlet of the gas separator is connected with a nitrogen charging tank.
10. The dry acetylene sludge warehouse carbide slag treatment conveying system according to claim 1, further comprising a discharging part, wherein the discharging part is arranged at the tail end of the conveying pipeline, the discharging part is connected with a discharging storage bin through a star-shaped discharger, the bottom of the storage bin is connected with a discharging bulk machine for discharging carbide slag stored in the storage bin, and the storage bin is further connected with a nitrogen charging tank through a nitrogen charging pipeline.
CN202310206922.7A 2023-03-07 2023-03-07 Conveying system is handled to dry process acetylene sludge storehouse carbide slag Pending CN116354116A (en)

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CN202310206922.7A CN116354116A (en) 2023-03-07 2023-03-07 Conveying system is handled to dry process acetylene sludge storehouse carbide slag

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CN202310206922.7A CN116354116A (en) 2023-03-07 2023-03-07 Conveying system is handled to dry process acetylene sludge storehouse carbide slag

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