System for rapid and deep dehydration of aqueous material

Abstract

The application discloses a kind of quick deep dewatering systems of aqueous material, which mainly includes feeding device, dewatering device, high-low temperature gas path device, dust removal device, washing device, water mist separator, main fan and tail gas treatment device.Compared with prior art, the quick deep dewatering system of aqueous material of the application can physically separate free water from bound water in aqueous material and combine "double gas path" gradient dewatering, which can effectively control the moisture content of aqueous material after dewatering, while saving energy consumption and operation and maintenance costs, and achieving the advantages of triple explosion-proof.

Description

Technical Field

[0001] This invention relates to the field of solid waste resource utilization technology, and in particular to a rapid deep dewatering system for water-containing materials. Background Technology

[0002] The disposal cost and subsequent resource utilization pathways (fuel, filler, compost, etc.) of water-containing materials are directly constrained by their moisture content. Taking municipal sludge as an example, the moisture content needs to be ≤40% for aerobic fermentation, landscaping, and brick making. When used as a soil conditioner, fertilizer, or as fuel in cement kilns, power plants, and incinerators, the moisture content must be controlled to 5%–20%. Engineering soil filling requires a moisture content close to the optimum moisture content (approximately 15–20%). If these water-containing materials are not thoroughly dehydrated, it not only increases transportation and processing costs but may also lead to environmental risks such as landslides and leachate pollution.

[0003] In existing technologies, mechanical and centrifugal methods are commonly used to dehydrate materials containing moisture through extrusion. While extrusion dehydration is economical, it suffers from problems such as the collapse of the material's pore structure during extrusion, blocking the channels for free water removal, and a dehydration limit (for example, municipal sludge has a dehydration limit of only 45-75%), making it difficult to directly dehydrate to the desired moisture content. Further measures to reduce the material's moisture content are then necessary. Thermal drying or the addition of modified materials is commonly used to further reduce the material's moisture content. Thermal drying requires a large amount of latent heat of vaporization (approximately 2257 kJ / kg) to evaporate moisture, and high-temperature drying (>80℃) easily decomposes organic matter, generating VOCs and increasing the difficulty of exhaust gas treatment. Among various thermal drying technologies, low-temperature heat pump technology does not increase the difficulty of exhaust gas treatment and is energy-saving, with a water removal rate of approximately 3 kg / (kW·h) per unit of energy consumption, a material residence time of 0.5-4 hours, and large equipment size. While the addition of modified materials can reduce moisture content, the material volume increases by 10-30%, and impurities are introduced, affecting subsequent resource recovery.

[0004] Therefore, how to provide a rapid and deep dehydration system for water-containing materials that is economical and environmentally friendly, and that can achieve the technical effect of physical separation and gradient dehydration of free water and bound water in water-containing materials, is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of the problems existing in the prior art, the technical problem to be solved by the present invention is to provide a rapid deep dewatering system for water-containing materials, which is economical and environmentally friendly and can achieve the technical effect of physical separation and gradient dewatering of free water and bound water in sludge.

[0006] To achieve the above objectives, the present invention provides a rapid deep dewatering system for water-containing materials, comprising: a feeding device; a dewatering device, the dewatering device including a cyclone dryer, a main cylinder, and a rotary water separator, wherein the upper part of the cyclone dryer is fixedly connected to the lower end of the main cylinder, and the rotary water separator is disposed within the main cylinder; the rotary water separator includes a rotating main shaft, a fish-scale perforated screen cylinder, a plurality of connecting discs evenly arranged along the axial direction of the rotating main shaft, and a plurality of hammer blades corresponding one-to-one with the plurality of connecting discs, one end of each hammer blade being connected to a corresponding connecting disc by a pin; each connecting disc and each hammer blade being located inside the fish-scale perforated screen cylinder; one end of the feeding device passing through the main cylinder and located at the upper part of the fish-scale perforated screen cylinder; and a high-low temperature gas circuit device, the high-low temperature gas circuit device including a heat pump sealing cover, a heat exchanger, a first airflow valve, a high-speed fan, and an auxiliary heater; the heat exchanger... The first airflow valve is located inside the heat pump sealing cover; one end of the high-speed fan is connected to the high-temperature gas outlet of the heat exchanger, and the other end of the high-speed fan is connected to one end of the auxiliary heater, the other end of the auxiliary heater is connected to the upper part of one side of the cyclone dryer through the first high-temperature pipeline; one end of the first airflow valve is connected to the low-temperature gas outlet of the heat exchanger, and the other end of the first airflow valve is connected to the lower part of one side of the main cylinder through the first low-temperature pipeline, the first low-temperature pipeline being located at the lower part of the fish-scale hole screen cylinder; a dust removal device, one end of which is connected to the main cylinder; a washing device, the inlet end of which is connected to the other end of the dust removal device; a water mist separator, the inlet end of which is connected to the outlet end of the washing device; a main fan, one end of which is connected to the outlet end of the water mist separator; and an exhaust gas treatment device, the inlet end of which is connected to the other end of the main fan.

[0007] In the first aspect, the feeding device includes: a feeding hopper; a feeding conveying channel, one end of which is connected to the feeding hopper, and the other end of which passes through the main cylinder and is located above the fish-scale hole screen cylinder; a material dispersing cutter disc, one end of which is fixedly connected to the other end of the feeding conveying channel; wherein, the rapid deep dehydration system for water-containing materials further includes a control system, which is connected to the feeding conveying channel, the material dispersing cutter disc, the cyclone dryer, the rotary water separator, the heat exchanger, the first airflow valve, the high-speed fan, the auxiliary heater, the dust removal device, the washing device, the water mist separator, the main fan, and the exhaust gas treatment device.

[0008] In a first aspect, the rotary water separator further includes: an upper support frame, fixed to the inner wall of the main cylinder in a direction perpendicular to the axial direction of the main cylinder; a lower support frame, fixed to the inner wall of the main cylinder in a direction perpendicular to the axial direction of the main cylinder; the lower support frame is located below the upper support frame; an upper bearing assembly, one end of which is fixedly connected to the lower end face of the upper support frame; one end of the rotary main shaft is rotatably connected to the upper bearing assembly; a lower bearing assembly, one end of which is fixedly connected to the upper end face of the lower support frame; the other end of the rotary main shaft is rotatably connected to the upper bearing assembly. Rotary connection; main shaft pulley, the main shaft pulley is located on the upper end face of the upper support frame; one end of the main shaft pulley passes through the upper support frame and the upper bearing in sequence, and is fixedly connected to one end of the rotating main shaft; the other end of the main shaft pulley is connected to the motor pulley of the drive motor through a belt; the main shaft pulley, the belt and the motor pulley are sealed by a belt sealing box; wherein, the fish scale hole screen cylinder is located between the upper bearing and the lower bearing; the material dispersing cutter disc is located between the upper support frame and the fish scale hole screen cylinder; the control system is connected to the drive motor.

[0009] In the first aspect, the dewatering device further includes: a vibrator disposed at the lower part of the fish-scale hole screen cylinder; a plurality of shock absorbers evenly distributed along the axial direction of the fish-scale hole screen cylinder, the fish-scale hole screen cylinder being fixedly connected to the main cylinder body through the plurality of shock absorbers; a particle interception plate located inside the main cylinder body, the particle interception plate being disposed on the upper part of the upper support frame; the lower end face of one end of the particle interception plate being set at an obtuse angle to one side wall of the main cylinder body, the particle interception plate being sealed to the main cylinder body; wherein, a maintenance door is provided on one side of the main cylinder body, the maintenance door being disposed opposite to the fish-scale hole screen cylinder; and the control system being connected to the vibrator.

[0010] In a first aspect, the dust removal device includes: a gravity separator, the feed end of which is connected to the main cylinder via a first dust removal pipe, the connection end of the first dust removal pipe to the main cylinder being located on the upper part of the upper surface of one end of the particle interception plate; a first sensor integrated block, the first sensor integrated block being disposed on the first dust removal pipe; a cyclone dust collector, the feed end of which is connected to the discharge end of the gravity separator via a second dust removal pipe; a powder storage tank, the lower part of the cyclone dryer being connected to the first feed inlet of the powder storage tank; and the powder recovery end of the gravity separator being connected to the second feed inlet of the powder storage tank via a third dust removal pipe. The cyclone dust collector's powder recovery end is connected to the third inlet of the powder storage tank via a fourth dust removal pipe; a powder sealing conveyor is connected at one end to the outlet of the powder storage tank; wherein, a first rotary sealing feeder is provided at the connection between the powder recovery end of the gravity separator and the third dust removal pipe; a second rotary sealing feeder is provided at the connection between the powder recovery end of the cyclone dust collector and the fourth dust removal pipe; the control system is connected to the gravity separator, the first sensor integrated block, the cyclone dust collector, the powder sealing conveyor, the first rotary sealing feeder, and the second rotary sealing feeder.

[0011] In a first aspect, the washing device includes: an acid washer, the air inlet of which is connected to the discharge end of the cyclone dust collector via a first washing pipe; a second sensor integrated block disposed on the first washing pipe; an acid washing water tank, the water outlet of which is connected to the water inlet of the acid washer; an automatic acid adder, the discharge end of which is connected to the feeding end of the acid washing water tank; an alkali washer, the air inlet of which is connected to the exhaust end of the acid washer via a second washing pipe; a third sensor integrated block disposed on the second washing pipe; an alkali washing water tank, the water outlet of which is connected to the water inlet of the alkali washer; an automatic alkali adder, the discharge end of which is connected to the feeding end of the alkali washing water tank; and a water processor, the water outlet of which is connected to the water inlet of the acid washing water tank and the discharge end of the cyclone dust collector. The system comprises: an inlet connection to the alkaline washing water tank; a backwasher, the backwashing end of which is connected to the cleaning end of the acid washing water tank and the cleaning end of the alkaline washing water tank; a sludge discharge device, the sludge inlet of which is connected to the sludge discharge end of the acid washing device and the alkaline washing device; a clean water collection tank, one end of which is connected to the first interface of the clean water discharge end of the backwasher; a sprayer located inside the main cylinder, the sprayer being arranged between the fish-scale hole screen cylinder and the upper support frame; the liquid inlet of the sprayer being connected to the other end of the clean water collection tank; and a control system connected to the acid washing device, the second sensor integrated block, the acid washing water tank, the automatic acid adder, the alkaline washing device, the third sensor integrated block, the alkaline washing water tank, the automatic alkali adder, the water processor, the backwasher, the sludge discharge device, and the sprayer.

[0012] In the first aspect, the air inlet of the water mist separator is connected to the air outlet of the alkaline scrubber via a first separation pipe, and the drain of the water mist separator is connected to the water inlet of the water tank backwasher and one end of the clean water collection tank, respectively; one end of the main blower is connected to the air outlet of the water mist separator via a second separation pipe, and the other end of the main blower is connected to the air inlet of the exhaust gas treatment device via a third separation pipe; wherein, the rapid deep dehydration system for water-containing materials further includes a second airflow valve, a fourth sensor integrated block, and a fifth sensor integrated block; the second airflow valve is arranged on the third separation pipe; the fourth sensor integrated block is arranged on the first separation pipe; the fifth sensor integrated block is arranged on the second separation pipe; and the control system is connected to the second airflow valve, the fourth sensor integrated block, and the fifth sensor integrated block, respectively.

[0013] In the first aspect, the high and low temperature gas circuit device further includes: a compressor, one end of which is connected to the low temperature gas circuit inlet of the heat exchanger; a first air source evaporator, the outlet of which is connected to the first inlet of the other end of the compressor; an expansion valve, one end of which is connected to the high temperature gas circuit inlet of the heat exchanger; a gas-liquid source evaporator, the first outlet of which is connected to the other end of the expansion valve, and the second outlet of which is connected to the second inlet of the other end of the compressor; a gas-liquid heat source, the output end of which is connected to the inlet of the gas-liquid source evaporator; a sixth sensor integrated block, which is disposed at one end of the first high temperature pipeline near the cyclone dryer; and a seventh sensor integrated block, which is disposed at one end of the first low temperature pipeline near the main cylinder; wherein the control system is connected to the compressor, the first air source evaporator, the expansion valve, the gas-liquid source evaporator, the gas-liquid heat source, the sixth sensor integrated block, and the seventh sensor integrated block, respectively.

[0014] In the first aspect, the exhaust gas treatment device includes: a first activated carbon adsorption device, the inlet of which is connected to the other end of the main fan via the third separation pipe, and the first outlet of which is connected to the inlet of the first air source evaporator via the first adsorption pipe; a third airflow valve disposed on the first adsorption pipe; an eighth sensor integrated block disposed on the first adsorption pipe, located between the first activated carbon adsorption device and the third airflow valve; a second activated carbon adsorption device, the inlet of which is connected to the second outlet of the first activated carbon adsorption device via the second adsorption pipe; a first pressure control valve disposed at the end of the second adsorption pipe near the second activated carbon adsorption device; and a second pressure control valve. The second pressure control valve is located at the first outlet end of the second activated carbon adsorption device; the activated carbon activation device has its inlet end connected to the third outlet end of the first activated carbon adsorption device; the exhaust gas discharge pipe has its first inlet end connected to the activated carbon activation device via the third adsorption pipe, and its second inlet end connected to the second outlet end of the second activated carbon adsorption device; the fourth airflow valve is located at one end of the third adsorption pipe near the activated carbon activation device; and the third pressure control valve is located at the outlet end of the exhaust gas discharge pipe; wherein the control system is connected to the first activated carbon adsorption device, the third airflow valve, the second activated carbon adsorption device, the first pressure control valve, the second pressure control valve, the activated carbon activation device, the fourth airflow valve, and the third pressure control valve, respectively.

[0015] In the first aspect, the rapid deep dehydration system for water-containing materials further includes: an outer sealing cover, wherein the dehydration device, the high and low temperature gas circuit device, the dust removal device, the washing device, the water mist separator, and the main fan are all located inside the outer sealing cover; one end of the feeding conveying channel is located outside the outer sealing cover; the outlet end of the exhaust pipe is located outside the outer sealing cover; an inspection door is provided on one side of the outer sealing cover to connect the outside of the outer sealing cover with the inside of the main cylinder; an automatic lubricating oil filling device, located inside the outer sealing cover, wherein the oil outlet end of the automatic lubricating oil filling device is connected to the oiling end of the upper bearing, the oiling end of the lower bearing, the oiling end of the feeding conveying channel, the oiling end of the material dispersing cutter disc, the oiling end of the drive motor, the oiling end of the main fan, and the oiling end of the high-speed fan; and an oxygen concentration alarm monitoring system. The device includes an oxygen concentration alarm and monitoring device located outside the outer sealing cover and installed at the outlet end of the exhaust pipe; an oxygen concentration sensor located inside the outer sealing cover and installed at the second outlet end of the exhaust pipe; a nitrogen supply device located inside the outer sealing cover, with its first outlet connected to the heat pump sealing cover via a first nitrogen pipe, and its second outlet communicating with the space inside the outer sealing cover; and a rapid ventilation device installed on one side of the outer sealing cover and adjustablely connected to the outside of the outer sealing cover. The control system is connected to the automatic lubricating oil filling device, the oxygen concentration alarm and monitoring device, the oxygen concentration sensor, the nitrogen supply device, and the rapid ventilation device.

[0016] Beneficial effects:

[0017] This invention provides a rapid deep dehydration system for water-containing materials, mainly comprising a feeding device, a dehydration device, a high- and low-temperature air circuit device, a dust removal device, a washing device, a water mist separator, a main fan, and an exhaust gas treatment device. The feeding device is used to transport the water-containing material into the dehydration device. The dehydration device is mainly used to dehydrate the water-containing material and includes a cyclone dryer, a main cylinder, and a rotary water separator. When the rotary water separator is working, the rotation of the main shaft causes the hammers to rotate at high speed, which in turn hammers the water-containing material at high speed, achieving strong atomization of the water in the material. At the moment of atomization, the material mixes with air, causing its volume to expand rapidly by hundreds to thousands of times. This physical expansion force separates the large proportion of free water (pore water) from the bound water in the solid phase. Effective separation of bulk particles improves dehydration and avoids blockage of free water channels in the material due to material compression, which would otherwise affect the dehydration effect. Meanwhile, free water is primarily pore water, accounting for the vast majority of the material's moisture content. Bound water consists of strongly bound water chemically bonded to the material and weakly bound water adhering to the material surface. For water-containing materials such as municipal sludge, silt, engineering soil, biogas residue, and food processing residue, which are composed of loosely aggregated particles with low hardness, atomization energy consumption can be reduced. A high- and low-temperature gas path device is used for further "dual-path" gradient dehydration of the material. This device includes a heat pump sealing cover, heat exchanger, first airflow valve, high-speed fan, and auxiliary heater. The auxiliary heater ensures controllable output temperature regulation, making the output... The outlet temperature is controlled at 80℃ or below to prevent the generation of additional organic pollutants at high temperatures. A high-speed fan transports the high-temperature gas, heated by the auxiliary heater, to the cyclone dryer, where bound water is specifically removed from the material after high-speed rotating hammering. Simultaneously, the main fan transports the low-temperature gas, after heat exchange in the heat exchanger, through the first airflow valve to the lower part of the fish-scale perforated screen cylinder inside the main cylinder. The gas flow rate is adjusted by the first airflow valve to regulate the gas temperature, ensuring that the temperature of the low-temperature gas entering the main cylinder is below 60℃. This low-temperature gas enters the main cylinder and, from bottom to top, carries the free water separated by the high-speed rotating hammering out of the main cylinder in liquid form to the dust removal device. This avoids the large latent heat of vaporization required for evaporating free water, thus achieving energy savings. The high-temperature gas... The system uses a combination of gas and low-temperature gas to treat bound water and free water respectively, achieving a "dual-path" gradient dehydration of the material. The amount of gas delivered by the main fan and high-speed fan ensures precise, on-demand distribution of heat energy, preventing high-temperature heat from being wasted on free water and significantly reducing overall heat consumption. Furthermore, the feeding device can control the feeding speed, and by controlling the feeding speed and the output temperature of the auxiliary heater, the material can be dehydrated to the required final moisture content. Generally, it can directly reach the optimal moisture content; for example, municipal sludge at around 30% can be directly sent to power plants, steel mills, and waste incineration plants as low-quality fuel; construction waste can reach the optimal moisture content and be directly used as building filler; and food processing residues such as distiller's grains, monosodium glutamate, and soy sauce can meet the moisture content requirements for preparing organic fertilizer.The dust removal device is used to remove materials carried out during the process of removing free water; the free water is carried out of the main cylinder in the form of free water mist, and the washing device is used to remove most of the carried-out free water mist and large water droplets, as well as completely remove the small material particles that will be introduced; the water mist separator is used to separate some of the fine free water mist that escapes from the washing device from the gas; the exhaust gas treatment device is used to regulate and maintain the pressure inside the pipeline. In summary, the rapid deep dehydration system for water-containing materials of the present invention can physically separate free water and bound water in water-containing materials and combine "dual air path" gradient dehydration, which can effectively control the moisture content of water-containing materials after dehydration, while also saving energy. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a rapid deep dehydration system for water-containing materials according to the present invention.

[0020] Figure label:

[0021] 1. Cyclone dryer; 2. Main cylinder; 3. Rotating main shaft; 4. Fish scale hole screen cylinder; 5. Connecting disc; 6. Hammer blades; 7. Pin; 8. Heat pump sealing cover; 9. Heat exchanger; 10. First airflow valve; 11. High-speed fan; 12. Auxiliary heater; 13. Water mist separator; 14. Main fan; 15. Feed hopper; 16. Feed conveying channel; 17. Material dispersing cutter head; 18. Control system; 19. Upper support frame; 20. Lower support frame; 21. Upper bearing assembly; 22. Lower bearing assembly; 23. Main shaft pulley; 4. Drive motor; 25. Motor pulley; 26. Belt seal box; 27. Vibrator; 28. Shock absorber; 29. ​​Particle interception plate; 30. Inspection door; 31. Gravity separator; 32. First sensor integrated block; 33. Cyclone dust collector; 34. Powder storage tank; 35. Powder sealed conveyor; 36. First rotary seal feeder; 37. Second rotary seal feeder; 38. Acid washer; 39. Second sensor integrated block; 40. Acid washing water tank; 41. Automatic acid adder; 42. Alkali washing... Device; 43. Third sensor integrated block; 44. Alkali washing water tank; 45. Automatic alkali adder; 46. Water processor; 47. Water tank backwasher; 48. Sludge remover; 49. Clean water collection tank; 50. Sprayer; 51. Second airflow valve; 52. Fourth sensor integrated block; 53. Fifth sensor integrated block; 54. Compressor; 55. First air source evaporator; 56. Expansion valve; 57. Gas-liquid source evaporator; 58. Gas-liquid heat source; 59. Sixth sensor integrated block; 60. Seventh sensor integrated block; 6 1. First activated carbon adsorption device; 62. Third airflow valve; 63. Eighth sensor integrated block; 64. Second activated carbon adsorption device; 65. First pressure control valve; 66. Second pressure control valve; 67. Activated carbon activation device; 68. Exhaust gas emission pipe; 69. Fourth airflow valve; 70. Third pressure control valve; 71. Outer sealing cover; 72. Automatic lubricating oil filling device; 73. Oxygen concentration alarm monitoring device; 74. Oxygen concentration sensor; 75. Nitrogen supply device; 76. Rapid ventilation device. Detailed Implementation

[0022] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in this specification are within the scope of protection of this invention.

[0023] Example 1

[0024] like Figure 1As shown in the figure, this embodiment provides a rapid deep dewatering system for water-containing materials. The rapid deep dewatering system for water-containing materials includes: a feeding device; a dewatering device, the dewatering device including a cyclone dryer 1, a main cylinder 2, and a rotary water separator. The upper part of the cyclone dryer 1 is fixedly connected to the lower end of the main cylinder 2, and the rotary water separator is arranged inside the main cylinder 2. The rotary water separator includes a rotating main shaft 3, a fish-scale perforated screen cylinder 4, a plurality of connecting discs 5 evenly arranged along the axial direction of the rotating main shaft 3, and several connecting discs 5. Each of the connecting discs 5 has a corresponding number of hammers 6, one end of which is connected to a corresponding connecting disc 5 via a pin 7; each connecting disc 5 and each hammer 6 is located inside the fish-scale hole screen cylinder 4; one end of the feeding device passes through the main cylinder 2 and is located at the upper part of the fish-scale hole screen cylinder 4; a high-low temperature gas circuit device includes a heat pump sealing cover 8, a heat exchanger 9, a first airflow valve 10, a high-speed fan 11, and an auxiliary heater 12; the heat exchanger 9 and the first airflow valve 10... An airflow valve 10 is located inside the heat pump sealing cover 8; one end of the high-speed fan 11 is connected to the high-temperature gas outlet of the heat exchanger 9, and the other end of the high-speed fan 11 is connected to one end of the auxiliary heater 12, the other end of the auxiliary heater 12 is connected to the upper part of one side of the cyclone dryer 1 through a first high-temperature pipeline; one end of the first airflow valve 10 is connected to the low-temperature gas outlet of the heat exchanger 9, and the other end of the first airflow valve 10 is connected to the lower part of one side of the main cylinder 2 through a first low-temperature pipeline. The first low-temperature pipeline is located at the lower part of the fish-scale hole screen cylinder 4; a dust removal device, one end of which is connected to the main cylinder 2; a washing device, the feed end of which is connected to the other end of the dust removal device; a water mist separator 13, the air inlet of which is connected to the air outlet of the washing device; a main fan 14, one end of which is connected to the air outlet of the water mist separator 13; and an exhaust gas treatment device, the air inlet of which is connected to the other end of the main fan 14.

[0025] This invention provides a rapid deep dehydration system for water-containing materials, mainly comprising a feeding device, a dehydration device, a high- and low-temperature air circuit device, a dust removal device, a washing device, a water mist separator 13, a main fan 14, and an exhaust gas treatment device. The feeding device is used to transport the water-containing material into the dehydration device. The dehydration device is mainly used to dehydrate the water-containing material and includes a cyclone dryer 1, a main cylinder 2, and a rotary water separator. When the rotary water separator is working, the rotation of the main shaft 3 causes the hammer blades 6 to rotate at high speed, which hammers the water-containing material at high speed, achieving strong atomization of the water in the material. At the moment of atomization, the material mixes with air, causing its volume to expand rapidly by hundreds to thousands of times. This physical expansion force removes the large proportion of free water (pore water). Effective separation from solid particles containing bound water improves dehydration efficiency and avoids blockage of free water channels in the material due to material compression, which would affect dehydration. Meanwhile, free water primarily consists of pore water, accounting for the vast majority of the material's moisture content. Bound water is divided into strongly bound water chemically bonded to the material and weakly bound water adhering to the material surface. For water-containing materials, such as municipal sludge, silt, engineering soil, biogas residue, and food processing residue, which are composed of loosely aggregated particles with low hardness, atomization energy consumption can be reduced. The high- and low-temperature gas path device is used for further "…". The "dual-gas-path" gradient dehydration system includes a heat pump sealing cover 8, a heat exchanger 9, a first airflow valve 10, a high-speed fan 11, and an auxiliary heater 12. The auxiliary heater 12 ensures controllable output temperature regulation, keeping it at 80°C or below to prevent the generation of additional organic pollutants at high temperatures. The high-temperature gas heated by the auxiliary heater 12 is transferred to the cyclone dryer 1 by the high-speed fan 11 to specifically remove bound water from the material after high-speed rotating hammering. Simultaneously, the low-temperature gas after heat exchange in the heat exchanger 9 is transferred by the main fan 14 through the first... The gas flow valve 10 transmits gas to the lower part of the fish-scale perforated screen cylinder 4 inside the main cylinder 2. The gas flow rate is adjusted by the first gas flow valve 10 to regulate the gas temperature, ensuring that the temperature of the low-temperature gas transmitted into the main cylinder 2 is below 60°C. The low-temperature gas enters the main cylinder 2 and carries the free water separated by the high-speed rotating hammer in liquid form out of the main cylinder 2 and into the dust removal device. This avoids the huge latent heat of vaporization required for evaporating free water, thus achieving energy saving. By treating the bound water and free water separately with high-temperature gas and low-temperature gas, a "dual-path" gradient dehydration of the material is achieved. The amount of gas delivered by the main fan 14 and the high-speed fan 11 enables precise on-demand distribution of heat energy, avoiding the waste of high-temperature heat sources on free water and significantly reducing overall heat energy consumption. In addition, the feeding device can control the feeding speed. By controlling the feeding speed and the output temperature of the auxiliary heater 12, the material can be dehydrated to the required final moisture content. Generally, the required optimal moisture content can be directly achieved. For example, municipal sludge with a moisture content of about 30% can be directly sent to power plants, steel plants, and waste incineration plants as low-quality fuel for combustion, and engineering slag can be directly used as building filler after reaching the optimal moisture content.Food processing residues such as distiller's grains, monosodium glutamate, and soy sauce meet the moisture content requirements for preparing organic fertilizer. A dust removal device removes materials carried away during the free water removal process. Free water is carried out of the main cylinder 2 in the form of free water mist. A washing device removes most of the carried-out free water mist by combining it with large water droplets, and completely removes any small material particles carried in. A water mist separator 13 separates some of the fine free water mist escaping from the washing device from the gas. A tail gas treatment device regulates and maintains the pressure inside the pipeline. In summary, this invention provides a rapid deep dehydration system for water-containing materials that physically separates free water from bound water in water-containing materials and combines it with a "dual-air-path" gradient dehydration method. This effectively controls the moisture content of the dehydrated material while also saving energy.

[0026] In some possible implementations, the feeding device includes: a feeding hopper 15; a feeding conveying channel 16, one end of which is connected to the feeding hopper 15, and the other end of which passes through the main cylinder 2 and is located above the fish-scale hole screen cylinder 4; a material dispersing cutter disc 17, one end of which is fixedly connected to the other end of the feeding conveying channel 16; wherein, the rapid deep dehydration system for water-containing materials also includes a control system 18, which is connected to the feeding conveying channel 16, the material dispersing cutter disc 17, the cyclone dryer 1, the rotary water separator, the heat exchanger 9, the first airflow valve 10, the high-speed fan 11, the auxiliary heater 12, the dust removal device, the washing device, the water mist separator 13, the main fan 14, and the exhaust gas treatment device.

[0027] Specifically, fibrous and hard lumpy materials are screened and impurity removed before entering the dewatering device. The hammer blades 6 can adapt to small hard particles. The feeding device is used for sealed feeding into the dewatering device. The feeding hopper 15 is used for feeding, and the feeding conveying channel 16 is used for conveying the material. The material dispersing cutter disc 17 is used to further crush the material. The fish-scale hole screen cylinder 4 is used to further disperse the material before it enters the area where it is hammered by the hammer blades 6. The feeding conveying channel 16, the material dispersing cutter disc 17, the cyclone dryer 1, the rotary water separator, the heat exchanger 9, the first airflow valve 10, the high-speed fan 11, the auxiliary heater 12, and the dewatering device are controlled by the control system 18. The dust collector, washing unit, water mist separator 13, main fan 14, and exhaust gas treatment unit are in operation. Moisture-containing materials are fed into the main cylinder 2 via the feeding device, and then dried from top to bottom by high-speed rotating hammer blades 6 for atomization and cyclone dryer 1 for enhanced drying before being discharged. The overall residence time is less than 30 seconds. In contrast, conventional low-temperature heat pump drying technologies, which employ multi-layer spreading and paddle-type drying with slow one-to-one advancement, require a sufficiently long residence time for complete dehydration, resulting in feeding to discharging times ranging from tens of minutes to several hours and leading to larger equipment sizes, this system effectively combines a compact vertical structure to achieve equipment miniaturization and high processing efficiency. While this efficient system integration increases system complexity, it ensures system stability, reduces failure rates, and lowers maintenance difficulty.

[0028] In some possible implementations, the rotary water separator further includes: an upper support frame 19, fixed to the inner wall of the main cylinder 2 perpendicular to the axial direction of the main cylinder 2; a lower support frame 20, fixed to the inner wall of the main cylinder 2 perpendicular to the axial direction of the main cylinder 2; the lower support frame 20 is located below the upper support frame 19; an upper bearing assembly 21, one end of which is fixedly connected to the lower end face of the upper support frame 19; one end of the rotating main shaft 3 is rotatably connected to the upper bearing assembly 21; a lower bearing assembly 22, one end of which is fixedly connected to the upper end face of the lower support frame 20; the other end of the rotating main shaft 3 is rotatably connected to the upper bearing assembly 21; and a main shaft pulley 23, located at the upper end of the upper support frame 19. The main shaft pulley 23 has one end passing through the upper support frame 19 and the upper bearing 21, and is fixedly connected to one end of the rotating main shaft 3. The other end of the main shaft pulley 23 is connected to the motor pulley 25 of the drive motor 24 via a belt. The main shaft pulley 23, the belt, and the motor pulley 25 are sealed by a belt sealing box 26. The fish-scale hole screen cylinder 4 is located between the upper bearing 21 and the lower bearing 22. The material dispersing cutter disc 17 is located between the upper support frame 19 and the fish-scale hole screen cylinder 4. The control system 18 is connected to the drive motor 24. The drive motor 24 can be an explosion-proof motor, and the speed of the drive motor 24 can be set to less than 3000 r / min. The fish-scale hole screen cylinder 4 can be composed of a frame and a fish-scale mesh, and the overall opening rate of the fish-scale mesh is not less than 75%. A screen cylinder maintenance door is opened on the fish-scale hole screen cylinder 4, and the position of the screen cylinder maintenance door is consistent with the position of the maintenance door 30 of the main cylinder 2.

[0029] The direction of the four holes in the fish scale screen cylinder, the direction of rotation of the main shaft 3, and the tangential air intake direction at the bottom of the main cylinder 2 are all in the same direction.

[0030] Specifically, the upper support frame 19 and the lower support frame 20 are mainly used to support the rotating main shaft 3. The rotating main shaft 3 is rotatably connected to the upper bearing assembly 21 and the lower bearing assembly 22. The drive motor 24 drives the motor pulley 25 to rotate, thereby driving the main shaft pulley 23 to rotate, so that the rotating main shaft 3 rotates. The connecting disc 5 and hammer blades 6 fixed on the rotating main shaft 3, along with the high-speed rotation of the rotating main shaft 3, hammer the material at high speed. After being hammered at high speed by the hammer blades 6, the material is further dispersed through the fish scale hole screen cylinder 4. Tangential air intake prevents blockage, reduces the material adhesion area, prevents material adhesion, and ensures the stable operation of the dewatering system. The lower bearing assembly 22 and the upper bearing assembly 21 are both composed of bearing housings, bearings, lubricating oil filling nozzles, and lubricating oil filling pipes. The lubricating oil filling nozzles are the filling ends of the upper and lower bearing assemblies 22.

[0031] In some possible implementations, the dewatering device further includes: a vibrator 27, which is arranged at the lower part of the fish-scale hole screen cylinder 4; a plurality of shock absorbers 28, which are evenly arranged along the axial direction of the fish-scale hole screen cylinder 4, and the fish-scale hole screen cylinder 4 is fixedly connected to the main cylinder body 2 through the plurality of shock absorbers 28; a particle interception plate 29, which is located inside the main cylinder body 2 and is arranged on the upper part of the upper support frame 19; the lower end face of one end of the particle interception plate 29 is set at an obtuse angle to one side wall of the main cylinder body 2, and the particle interception plate 29 is sealed to the main cylinder body 2; wherein, an inspection door 30 is opened on one side of the main cylinder body 2, and the inspection door 30 is arranged opposite to the fish-scale hole screen cylinder 4; the control system 18 is connected to the vibrator 27.

[0032] Specifically, the vibrator 27 is used for vibration to prevent sticking. The vibrator 27 is used in conjunction with the fish-scale hole screen cylinder 4 to further prevent material sticking and ensure the stable operation of the dewatering system. The shock absorber 28 is used to prevent damage to the rotary water separator due to excessive vibration during operation. The air passage area of ​​the particle interception plate 29 is not less than that of the main cylinder 2. The particle interception plate 29 can block some large particles from entering the gravity separator 31, ensuring efficient interception of particles, protecting the downstream equipment, and ensuring the stable operation of the dewatering system. The maintenance door 30 connects the inside of the main cylinder 2 with the outside of the outer sealing cover 71, facilitating the maintenance of the dewatering device and the maintenance of the various devices inside the outer sealing cover 71. The control system 18 can control the vibrator 27 to operate.

[0033] In some possible implementations, the dust removal device includes: a gravity separator 31, the feed end of which is connected to the main cylinder 2 via a first dust removal pipe, the connection end of which is located on the upper part of the upper surface of one end of the particle interception plate 29; a first sensor integrated block 32, which is arranged on the first dust removal pipe; a cyclone dust collector 33, the feed end of which is connected to the discharge end of the gravity separator 31 via a second dust removal pipe; a powder storage tank 34, the lower part of the cyclone dryer 1 being connected to the first feed inlet of the powder storage tank 34; and the powder recovery end of the gravity separator 31 being connected to the second feed inlet of the powder storage tank 34 via a third dust removal pipe. The cyclone dust collector 33 is connected to the third inlet of the powder storage tank 34 via a fourth dust removal pipe; a powder sealing conveyor 35 is connected at one end to the outlet of the powder storage tank 34; a first rotary sealing feeder 36 is provided at the connection between the powder recovery end of the gravity separator 31 and the third dust removal pipe; a second rotary sealing feeder 37 is provided at the connection between the powder recovery end of the cyclone dust collector 33 and the fourth dust removal pipe; the control system 18 is connected to the gravity separator 31, the first sensor integrated block 32, the cyclone dust collector 33, the powder sealing conveyor 35, the first rotary sealing feeder 36, and the second rotary sealing feeder 37.

[0034] Specifically, the particle interception plate 29 intercepts some large particles, and then the gravity separator 31 relies on the gravity of the particles to sink, further removing some of the larger material particles that have entered the gravity separator 31; then the cyclone dust collector 33 removes most of the small particles, realizing a three-stage gradient dust removal process of particle interception plate 29-gravity separator 31-cyclone dust collector 33. During these three dust removal processes, the material particles and free water mist are not fully combined and are still discharged in the form of dry particles, which enter the powder storage tank 34 through the first rotary sealing feeder 36 and the second rotary sealing feeder 37 respectively; the control system 18 controls the operation of the gravity separator 31, the first sensor integrated block 32, the cyclone dust collector 33, the powder sealing conveyor 35, the first rotary sealing feeder 36, and the second rotary sealing feeder 37; the first sensor integrated block 32 includes a wind speed sensor, a wind pressure sensor, a temperature sensor, a humidity sensor, a dust concentration sensor, and an organic gas concentration sensor, which are used to monitor and evaluate the operating status of the dehydration system, and eliminate blockages and safety hazards.

[0035] In some possible implementations, the washing device includes: an acid washer 38, the air inlet of which is connected to the discharge end of the cyclone dust collector 33 via a first washing pipe; a second sensor integrated block 39, which is disposed on the first washing pipe; an acid washing water tank 40, the water outlet of which is connected to the water inlet of the acid washer 38; an automatic acid adder 41, the discharge end of which is connected to the feeding end of the acid washing water tank 40; and an alkali washer 42, wherein the alkali... The air inlet of the washer 42 is connected to the exhaust outlet of the acid washer 38 via a second washing pipe; a third sensor integrated block 43 is disposed on the second washing pipe; an alkaline washing water tank 44 has its outlet connected to the water inlet of the alkaline washer 42; an automatic alkali adder 45 has its outlet connected to the feeding end of the alkaline washing water tank 44; and a water processor 46 has its outlet connected to both the water inlet of the acid washer 40 and the alkaline washing water tank 38. The water inlet of tank 44 is connected to; a water tank backwasher 47, the flushing end of which is connected to the cleaning end of the acid washing water tank 40 and the cleaning end of the alkaline washing water tank 44 respectively; a sludge discharge device 48, the sludge inlet of which is connected to the sludge discharge end of the acid washing device 38 and the alkaline washing device 42 respectively; a clean water collection tank 49, one end of which is connected to the first interface of the clean water discharge end of the water tank backwasher 47; and a sprayer 50, which is located inside the main cylinder 2, and the sprayer 50 is covered with... It is located between the fish-scale hole screen cylinder 4 and the upper support frame 19; the liquid inlet end of the sprayer 50 is connected to the other end of the clean water collection tank 49; wherein, the control system 18 is connected to the acid washer 38, the second sensor integrated block 39, the acid washer water tank 40, the automatic acid adder 41, the alkali washer 42, the third sensor integrated block 43, the alkali washer water tank 44, the automatic alkali adder 45, the water processor 46, the water tank backwasher 47, the sludge remover 48, and the sprayer 50.

[0036] Specifically, most of the free water mist brought in after passing through the cyclone dust collector 33 combines with large water droplets and is discharged when it passes through the acid washer 38 and the alkaline washer 42, while the escaped fine free water mist is separated by the water mist separator 13. Simultaneously, the acid washer 38 and the alkaline washer 42 can completely remove extremely small amounts of escaped microparticles. Combined with the three-stage gradient dust removal system of particle retention plate 29-gravity separator 31-cyclone dust collector 33, a five-stage gradient dust removal system is achieved, realizing the removal of material particles through five stages. In the acid washer 38 and alkaline washer 42... In the five-stage dust removal process, the removed material particles enter the sludge discharger 48 in the form of slurry. The sludge at the bottom of the alkaline scrubber 42 and acid scrubber 38 is periodically discharged through the sludge discharger 48. The sludge discharged by the sludge discharger 48 is mixed with untreated material and re-enters the dewatering system for dewatering. In addition, the five-stage gradient dust removal ensures the stable operation of the downstream equipment and reduces the wear of material particles on the downstream equipment, especially the high and low temperature gas circuit devices. The acid scrubber 38 and alkaline scrubber 42 can wash away most of the polluting gas with a small amount of acid and alkali, greatly reducing the load on the first activated carbon adsorption device 61. The alkaline washing water tank 44 and the acid washing water tank 40 are respectively connected to the automatic alkali dosing device 45 and The automatic acid adder 41 assembly enables the configured washing water to wash away polluting gases, material particles, and remove some free water mist in the alkaline scrubber 42 and acid scrubber 38. Both the alkaline washing water tank 44 and the acid washing water tank 40 are equipped with filters to prevent sludge from entering the tanks. The water processor 46 receives excess washing water after the alkaline scrubber 42 and acid scrubber 38 have finished operating and treats it to meet standards before discharging it. The water tank backwash cleaner periodically cleans the alkaline washing water tank 44 and the acid washing water tank 40. The sprayer 50 starts before the feeding device begins feeding and after the feeding device stops feeding, running for 30-60 seconds to clean organic gases and prevent material dust concentration. Excessive size reduces safety hazards; the second sensor integrated block 39 and the third sensor integrated block 43 both include wind speed sensor, wind pressure sensor, temperature sensor, humidity sensor, dust concentration sensor and organic gas concentration sensor, used to monitor and evaluate the operating status of the dehydration system, eliminate blockages and safety hazards; the control system 18 controls the operation of the acid washer 38, the second sensor integrated block 39, the acid washer water tank 40, the automatic acid adder 41, the alkali washer 42, the third sensor integrated block 43, the alkali washer water tank 44, the automatic alkali adder 45, the water processor 46, the water tank backwasher 47, the sludge remover 48 and the sprayer 50 respectively.

[0037] In some possible implementations, the air inlet of the water mist separator 13 is connected to the air outlet of the alkaline scrubber 42 via a first separation pipe, and the drain of the water mist separator 13 is connected to the water inlet of the water tank backwasher 47 and one end of the clean water collection tank 49, respectively; one end of the main fan 14 is connected to the air outlet of the water mist separator 13 via a second separation pipe, and the other end of the main fan 14 is connected to the air inlet of the exhaust gas treatment device via a third separation pipe; wherein, the rapid deep dehydration system for water-containing materials further includes a second airflow valve 51, a fourth sensor integrated block 52, and a fifth sensor integrated block 53; the second airflow valve 51 is arranged on the third separation pipe; the fourth sensor integrated block 52 is arranged on the first separation pipe; the fifth sensor integrated block 53 is arranged on the second separation pipe; the control system 18 is connected to the second airflow valve 51, the fourth sensor integrated block 52, and the fifth sensor integrated block 53, respectively.

[0038] Specifically, the water separated by the water mist separator 13 enters the water tank backwasher 47 and the clean water collection tank 49 respectively, enabling water recycling; the main fan 14 can transmit the gas treated by the water mist separator 13 to the exhaust gas treatment device to remove organic pollutants, while maintaining the pressure balance in the dehydration system pipeline and reducing safety hazards; both the main fan 14 and the high-speed fan 11 are explosion-proof, corrosion-resistant and wear-resistant fans; the second airflow valve 51 is used to control the airflow; the fourth sensor integrated block 52 and the fifth sensor integrated block 53 both include wind speed sensor, wind pressure sensor, temperature sensor, humidity sensor, dust concentration sensor and organic gas concentration sensor, used to monitor and evaluate the operating status of the dehydration system, eliminate blockages and safety hazards; the control system 18 can control the operation of the second airflow valve 51, the fourth sensor integrated block 52 and the fifth sensor integrated block 53.

[0039] In some possible implementations, the high and low temperature gas path device further includes: a compressor 54, one end of which is connected to the low temperature gas path inlet of the heat exchanger 9; a first air source evaporator 55, the outlet of which is connected to the first inlet of the other end of the compressor 54; an expansion valve 56, one end of which is connected to the high temperature gas path inlet of the heat exchanger 9; a gas-liquid source evaporator 57, the first outlet of which is connected to the other end of the expansion valve 56, and the second outlet of which is connected to the second inlet of the other end of the compressor 54; and a gas-liquid heat source 5. 8. The output end of the gas-liquid heat source 58 is connected to the inlet of the gas-liquid source evaporator 57; the sixth sensor integrated block 59 is arranged at one end of the first high-temperature pipeline near the cyclone dryer 1; the seventh sensor integrated block 60 is arranged at one end of the first low-temperature pipeline near the main cylinder 2; wherein, the control system 18 is connected to the compressor 54, the first air source evaporator 55, the expansion valve 56, the gas-liquid source evaporator 57, the gas-liquid heat source 58, the sixth sensor integrated block 59, and the seventh sensor integrated block 60 respectively.

[0040] Specifically, after passing through the water mist separator 13, the water vapor contained in the gas is discharged as condensate through the first air source evaporator 55. A portion of the water separated by the water mist separator 13 and the condensate produced by the first air source evaporator 55 is supplied to the sprayer 50, and the excess enters the water processor 46. All the pipeline gas in the dehydration system passes through the first air source evaporator 55. The compressor 54, the first air source evaporator 55, the heat exchanger 9, the gas source evaporator, the heat pump sealing cover 8, and the expansion valve 56 constitute the heat pump system of the high and low temperature gas circuit device. The compressor 54, the first air source evaporator 55, the gas source evaporator, the expansion valve 56, and the heat exchanger 9 form the high and low temperature gas circuit device's heat pump system. The refrigerant system of the hot air circuit device uses an environmentally friendly refrigerant. This refrigerant system is a circulating system, with the circulation direction as follows: compressor 54 → heat exchanger 9 → expansion valve 56 → first air source evaporator 55, and gas source evaporator → compressor 54. The sixth sensor integrated block 59 and the seventh sensor integrated block 60 both include a wind speed sensor, a wind pressure sensor, a temperature sensor, a humidity sensor, a dust concentration sensor, and an organic gas concentration sensor, used to monitor and assess the operating status of the dehydration system, and to eliminate blockages and safety hazards. The control system 18 controls the compressor 54, the first air source evaporator 55, the expansion valve 56, and the gas-liquid source evaporator 54. Evaporator 57, gas-liquid heat source 58, sixth sensor integrated block 59, and seventh sensor integrated block 60 are operational. In the rapid deep dehydration system for water-containing materials of the present invention, a four-stage gradient dehydration mode is formed by acid washer 38, alkali washer 42, water mist separator 13, and first air source evaporator 55. Most of the free water mist combines with large water droplets and is discharged when passing through acid washer 38 and alkali washer 42. The escaped fine water mist is separated by water mist separator 13, and the water vapor contained in the gas is discharged as condensate through first air source evaporator 55. This four-stage gradient dehydration system can efficiently remove moisture in different forms, such as liquid droplets and vapor, ensuring that the moisture in the material is efficiently removed from the dehydration system. At the same time, it ensures that the gas circulating back to the main cylinder 2 is dried in conjunction with the material, which facilitates material dehydration and protects the dehydration system equipment. Compared with using a low-temperature heat pump for drying and relying solely on heat pump condensation for dehydration, this system can greatly reduce the heat pump condensation load and reduce the scale of heat pump use and energy consumption. The gas-liquid heat source 58 uses gas and water source heat to supplement the heat energy of the dehydration system, which is highly energy-efficient. The heat loss of the entire dehydration system is mainly due to the system's external heat dissipation, the heat carried away by the material, and the heat carried away by the dehydrated water, which can be supplemented by a high-temperature gas path device.

[0041] In some possible implementations, the exhaust gas treatment device includes: a first activated carbon adsorption device 61, the inlet of which is connected to the other end of the main fan 14 via the third separation pipe, and the first outlet of which is connected to the inlet of the first air source evaporator 55 via the first adsorption pipe; a third airflow valve 62, which is disposed on the first adsorption pipe; and an eighth sensor integrated block 63, which is disposed on the first adsorption pipe and located at the first... Between the activated carbon adsorption device 61 and the third airflow valve 62; a second activated carbon adsorption device 64, the inlet of which is connected to the second outlet of the first activated carbon adsorption device 61 via a second adsorption pipe; a first pressure control valve 65, located at one end of the second adsorption pipe near the second activated carbon adsorption device 64; a second pressure control valve 66, located at the first outlet of the second activated carbon adsorption device 64; and an activated carbon activation device 67, the inlet of which is connected to the first activated carbon adsorption device 61. A third outlet end of an activated carbon adsorption device 61 is connected; a waste gas discharge pipe 68, the first inlet end of which is connected to the activated carbon activation device 67 via a third adsorption pipe, and the second inlet end of which is connected to the second outlet end of the second activated carbon adsorption device 64; a fourth airflow valve 69, which is located at one end of the third adsorption pipe near the activated carbon activation device 67; and a third pressure control valve 70, which is located at the outlet end of the waste gas discharge pipe 68; wherein, the control system 18 is connected to the first activated carbon adsorption device 64. The device 61, the third airflow valve 62, the second activated carbon adsorption device 64, the first pressure control valve 65, the second pressure control valve 66, the activated carbon activation device 67, the fourth airflow valve 69, and the third pressure control valve 70 are connected. The activated carbon used in the first activated carbon adsorption device 61 and the second activated carbon adsorption device 64 is block-shaped with a large pore size of 8mm or more, and an air passage is left in the middle of the carbon block to ensure the air passage area. The first air source evaporator 55 and the heat exchanger 9 adopt large-spacing fins, and measures such as minimizing bends in the pipeline are taken to reduce system wind resistance, thereby reducing the energy consumption of each fan and achieving low wind resistance.

[0042] Specifically, the first activated carbon adsorption device 61 is used for activated carbon adsorption of organic gases. The first activated carbon adsorption device 61 only needs to adsorb a small amount of organic gases that are difficult to wash with acids or alkalis to control the total concentration of organic gases, ensuring the system safely controls the concentration of organic gases and avoiding safety hazards. The second activated carbon adsorption device 64 is used for activated carbon adsorption of organic gases. Simultaneously, when the gas pressure in the pipeline of the dehydration system exceeds the set value, the first pressure control valve 65 automatically opens, and the gas is discharged to the second activated carbon adsorption device 64, acting as a pressure buffer. When the gas pressure in the pipeline of the dehydration system returns to the set value, the first pressure control valve 65 automatically closes. When the gas pressure inside the outer sealing cover 71 exceeds the set value, the second... Pressure control valve 66 automatically opens, discharging gas to the second activated carbon adsorption device 64. When the gas pressure inside the outer sealing cover 71 returns to the set value, the second pressure control valve 66 automatically closes. When the pressure in the second activated carbon adsorption device 64 exceeds the set value, the third pressure control valve 70 automatically opens, releasing gas. Activated carbon activation device 67 can activate the activated carbon in the first activated carbon adsorption device 61 and the second activated carbon adsorption device 64, greatly reducing the frequency of activated carbon replacement. Activated carbon activation device 67 is a non-operating device; when the first activated carbon adsorption device 61 or the second activated carbon adsorption device 64 has worked for a set time, the control system 18 stops the rapid deep dehydration system for water-containing materials, causing the second airflow valve 5 to... 1. The third airflow valve 62, the third pressure control valve 70, and the second pressure control valve 66 are closed. The fourth airflow valve 69 and the first pressure control valve 65 are opened, and the activated carbon activation device 67 is started to activate the activated carbon. When the rapid deep dehydration system for water-containing materials is running, the activated carbon activation device 67 and the fourth airflow valve 69 are in the closed state. The control system 18 controls the operation of the first activated carbon adsorption device 61, the third airflow valve 62, the second activated carbon adsorption device 64, the first pressure control valve 65, the second pressure control valve 66, the activated carbon activation device 67, the fourth airflow valve 69, and the third pressure control valve 70, respectively. In the rapid deep dehydration system for water-containing materials of the present invention, the gas circulation sequence in the system pipeline is as follows: main fan 14 →First activated carbon adsorption device 61→First air source evaporator 55→Heat exchanger 9→High-speed fan 11→Auxiliary heater 12→Cyclone dryer 1→Main cylinder 2→Cyclone dust collector 33→Acid scrubber 38→Alkali scrubber 42→Main fan 14, wherein part of the gas passing through the first air source evaporator 55 sequentially passes through the heat exchanger 9 and the first airflow into the main cylinder 2; all pipes of acid scrubber 38, alkaline scrubber 42, first activated carbon adsorption device 61, and second activated carbon adsorption device 64 are made of corrosion-resistant materials, and the main fan 14 and high-speed fan 11 are made of corrosion-resistant fans, which means that the amount of work that still needs to be regularly anti-corrosion repair is not large, and can be completed during the annual overall maintenance, greatly reducing the daily maintenance cost;The process involves controlling pollutant generation at low temperature → washing with acid scrubber 38 → washing with alkaline scrubber 42 → activated carbon adsorption by the first activated carbon adsorption device 61, thus constituting a four-stage organic gas control system. A nitrogen supply device 75 maintains a low oxygen concentration. This four-stage organic gas control system keeps organic gases within a certain concentration range, achieving triple explosion protection and reducing safety hazards. The low-temperature source control of pollutant generation is achieved by the auxiliary heater 12, which controls and adjusts the output temperature to 60℃ or below to prevent the generation of additional organic pollutants at high temperatures.

[0043] In some possible implementations, the rapid deep dehydration system for water-containing materials further includes: an outer sealing cover 71, wherein the dehydration device, the high and low temperature gas path device, the dust removal device, the washing device, the water mist separator 13, and the main fan 14 are all located inside the outer sealing cover 71; one end of the feed conveying channel 16 is located outside the outer sealing cover 71; the outlet end of the exhaust gas discharge pipe 68 is located outside the outer sealing cover 71; and an outer cover door is provided on one side of the outer sealing cover 71 to connect to the outer sealing cover. 71 External and internal to the main cylinder 2; Automatic lubricating oil filling device 72, located inside the outer sealing cover 71, with its oil outlet connected to the oil filling ends of the upper bearing assembly 21, the lower bearing assembly 22, the feed conveying channel 16, the material dispersing cutter disc 17, the drive motor 24, the main fan 14, and the high-speed fan 11; Oxygen concentration alarm monitoring device 73. The oxygen concentration alarm monitoring device 73 is located outside the outer sealing cover 71 and is installed at the outlet end of the exhaust pipe 68; the oxygen concentration sensor 74 is located inside the outer sealing cover 71 and is installed at the second outlet end of the exhaust pipe 68; the nitrogen supply device 75 is located inside the outer sealing cover 71, with its first outlet connected to the heat pump sealing cover 8 via a first nitrogen pipe, and its second outlet communicating with the space inside the outer sealing cover 71; the rapid ventilation device 76 is installed on one side of the outer sealing cover 71 and is adjustablely connected to the outside of the outer sealing cover 71; wherein, the control system 18 is connected to the automatic lubricating oil filling device 72, the oxygen concentration alarm monitoring device 73, the oxygen concentration sensor 74, the nitrogen supply device 75, and the rapid ventilation device 76 respectively.

[0044] Specifically, the outer cover door is positioned identically to the inspection door 30, and is used for maintenance. The automatic lubricating oil filling device 72 automatically adds lubricating oil; routinely, lubricating oil only needs to be replenished periodically. The automatic lubricating oil filling device 72 adds lubricating oil to the upper bearing assembly 21, lower bearing assembly 22, feed conveyor channel 16, material dispersion cutter disc 17, drive motor 24, main fan 14, and high-speed fan 11 via lubricating oil pipelines. The oxygen concentration alarm monitoring device 73 is used for oxygen concentration alarms. When an alarm occurs, personnel must immediately leave the site. At this time, the control system 18 will immediately shut down the rapid deep dehydration system for water-containing materials. The oxygen concentration sensor 74 detects the oxygen concentration inside the outer sealing cover 71. When the oxygen concentration detected by the oxygen concentration sensor 74 is lower than the oxygen concentration in the air, personnel are not allowed to enter the rapid deep dehydration system for water-containing materials for maintenance or other activities. When maintenance of the rapid deep dehydration system for water-containing materials is required, the rapid ventilation device 76 needs to be opened to allow the gas inside the outer sealing cover 71 to quickly... The system rapidly replaces the outside air, increasing or maintaining the oxygen concentration inside the outer sealing cover 71 to match the oxygen concentration in the air. The nitrogen supply device 75 supplies nitrogen to the outer sealing cover 71 and the heat pump sealing cover 8 through pipelines. The nitrogen supply device 75 uses nitrogen to maintain the oxygen concentration inside the outer sealing cover 71 and the heat pump sealing cover 8 below the explosive concentration. When the oxygen concentration sensor 74 or the oxygen concentration alarm monitoring device 73 detects that the oxygen concentration is higher than the set value, the nitrogen supply system automatically supplies nitrogen to cover the entire area. To mitigate explosion risks, the nitrogen supply system can be composed of an air compressor, a refrigerated dryer, and a nitrogen generator. The control system 18 controls the operation of the automatic lubricating oil filling device 72, the oxygen concentration alarm monitoring device 73, the oxygen concentration sensor 74, the nitrogen supply device 75, and the rapid ventilation device 76. All pipes in the rapid deep dehydration system for water-containing materials of this invention are made of corrosion-resistant and anti-static materials. At the same time, each device and equipment is coated with corrosion-resistant and wear-resistant coatings inside and out, and the exterior is treated with anti-corrosion measures. The outer sealing cover 71 prevents pollution leakage.

[0045] In summary, the rapid deep dehydration system for water-containing materials of the present invention has the following advantages: 1. It can physically separate free water and bound water in water-containing materials and combine "dual-air-path" gradient dehydration to effectively control the moisture content of the dehydrated materials while saving energy; 2. Through four-stage gradient dehydration and five-stage gradient dust removal, energy consumption is reduced, equipment is miniaturized, and processing efficiency is improved under the conditions of effective dehydration and dust removal, ensuring stable operation of the dehydration system, reducing failure rate, reducing maintenance difficulty, and reducing construction and operation costs; 3. It can effectively save energy, and at the same time, it achieves triple explosion protection by maintaining a low oxygen concentration through a nitrogen supply device, four-stage organic gas control, and electrostatic protection of pipelines, avoiding safety hazards.

[0046] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A rapid deep dewatering system for water-containing materials, characterized in that, The rapid deep dehydration system for water-containing materials includes: Feeding device; A dehydration device includes a hydrocyclone dryer, a main cylinder, and a rotary water separator. The upper part of the hydrocyclone dryer is fixedly connected to the lower end of the main cylinder, and the rotary water separator is disposed inside the main cylinder. The rotary water separator includes a rotating main shaft, a fish-scale perforated screen cylinder, a plurality of connecting discs evenly arranged along the axial direction of the rotating main shaft, and a plurality of hammer blades corresponding one-to-one with the plurality of connecting discs. One end of each hammer blade is connected to a corresponding connecting disc by a pin. Each connecting disc and each hammer blade is located inside the fish-scale perforated screen cylinder. One end of the feeding device passes through the main cylinder and is located at the upper part of the fish-scale perforated screen cylinder. A high-low temperature gas path device includes a heat pump sealing cover, a heat exchanger, a first airflow valve, a high-speed fan, and an auxiliary heater. The heat exchanger and the first airflow valve are located inside the heat pump sealing cover. One end of the high-speed fan is connected to the high-temperature gas path outlet of the heat exchanger, and the other end of the high-speed fan is connected to one end of the auxiliary heater. The other end of the auxiliary heater is connected to the upper part of one side of the cyclone dryer through a first high-temperature pipeline. One end of the first airflow valve is connected to the low-temperature gas path outlet of the heat exchanger, and the other end of the first airflow valve is connected to the lower part of one side of the main cylinder through a first low-temperature pipeline. The first low-temperature pipeline is located at the lower part of the fish-scale hole sieve cylinder. A dust removal device, one end of which is connected to the main cylinder; A washing device, wherein the feed end of the washing device is connected to the other end of the dust removal device; A water mist separator, wherein the air inlet of the water mist separator is connected to the air outlet of the washing device; A main fan, one end of which is connected to the air outlet of the water mist separator; An exhaust gas treatment device, wherein the air inlet of the exhaust gas treatment device is connected to the other end of the main fan.

2. The rapid deep dewatering system for water-containing materials as described in claim 1, characterized in that, The feeding device includes: Feed hopper; A feeding conveying channel, one end of which is connected to the feeding hopper, and the other end of which passes through the main cylinder and is located at the upper part of the fish scale hole screen cylinder; A material dispersing cutter disc, one end of which is fixedly connected to the other end of the feeding conveying channel; The rapid deep dehydration system for water-containing materials also includes a control system, which is connected to the feeding conveying channel, the material dispersing cutter disc, the cyclone dryer, the rotary water separator, the heat exchanger, the first airflow valve, the high-speed fan, the auxiliary heater, the dust removal device, the washing device, the water mist separator, the main fan, and the exhaust gas treatment device.

3. The rapid deep dewatering system for water-containing materials as described in claim 2, characterized in that, The rotary water separator also includes: An upper support frame is fixed to the inner wall of the main cylinder in a direction perpendicular to the axial direction of the main cylinder. The lower support frame is fixed to the inner wall of the main cylinder in a direction perpendicular to the axial direction of the main cylinder; the lower support frame is located below the upper support frame. An upper bearing assembly, one end of which is fixedly connected to the lower end face of the upper support frame; one end of the rotating spindle is rotatably connected to the upper bearing assembly; The lower bearing assembly has one end fixedly connected to the upper end face of the lower support frame; the other end of the rotating spindle is rotatably connected to the upper bearing assembly. A main shaft pulley is located on the upper end face of the upper support frame; one end of the main shaft pulley passes through the upper support frame and the upper bearing assembly in sequence, and is fixedly connected to one end of the rotating main shaft; the other end of the main shaft pulley is connected to the motor pulley of the drive motor via a belt; the main shaft pulley, the belt, and the motor pulley are sealed by a belt sealing box. The fish-scale hole screen cylinder is located between the upper bearing and the lower bearing; the material dispersing blade is located between the upper support frame and the fish-scale hole screen cylinder; and the control system is connected to the drive motor.

4. The rapid deep dewatering system for water-containing materials as described in claim 3, characterized in that, The dehydration device further includes: A vibrator is installed at the lower part of the fish-scale hole screen cylinder; Several shock absorbers are evenly distributed along the axial direction of the fish-scale hole screen cylinder, and the fish-scale hole screen cylinder is fixedly connected to the main cylinder body through the several shock absorbers. A particle interception plate is located inside the main cylinder and is arranged on the upper part of the upper support frame; the lower end face of one end of the particle interception plate is set at an obtuse angle to one side wall of the main cylinder, and the particle interception plate is sealed to the main cylinder; The main cylinder has an inspection door on one side, which is opposite to the fish-scale hole screen cylinder; the control system is connected to the vibrator.

5. The rapid deep dewatering system for water-containing materials as described in claim 4, characterized in that, The dust removal device includes: A gravity separator, wherein the feed end of the gravity separator is connected to the main cylinder through a first dust removal pipe, and the connection end of the first dust removal pipe to the main cylinder is located at the upper part of the upper surface of one end of the particle interception plate; The first sensor integrated block is disposed on the first dust removal pipe; A cyclone dust collector, wherein the feed end of the cyclone dust collector is connected to the discharge end of the gravity separator through a second dust removal pipe; A powder storage tank is provided, with the lower part of the cyclone dryer connected to the first inlet of the powder storage tank; the powder recovery end of the gravity separator is connected to the second inlet of the powder storage tank via a third dust removal pipe; and the powder recovery end of the cyclone dust collector is connected to the third inlet of the powder storage tank via a fourth dust removal pipe. A sealed powder conveyor, one end of which is connected to the outlet of the powder storage tank; The gravity separator is equipped with a first rotary sealing feeder at the connection between its powder recovery end and the third dust removal pipe; the cyclone dust collector is equipped with a second rotary sealing feeder at the connection between its powder recovery end and the fourth dust removal pipe; and the control system is connected to the gravity separator, the first sensor integrated block, the cyclone dust collector, the powder sealing conveyor, the first rotary sealing feeder, and the second rotary sealing feeder.

6. The rapid deep dewatering system for water-containing materials as described in claim 5, characterized in that, The washing device includes: An acid washer, wherein the air inlet of the acid washer is connected to the discharge end of the cyclone dust collector via a first washing pipe; The second sensor integrated block is disposed on the first washing pipe; An acid washing water tank, wherein the outlet of the acid washing water tank is connected to the inlet of the acid washer; An automatic acid feeder, wherein the discharge end of the automatic acid feeder is connected to the feed end of the acid washing water tank; An alkaline washer, wherein the air inlet of the alkaline washer is connected to the exhaust outlet of the acid washer via a second washing pipe; The third sensor integrated block is disposed on the second washing pipe; An alkaline washing water tank, wherein the outlet of the alkaline washing water tank is connected to the inlet of the alkaline washer; An automatic alkali feeder, wherein the discharge end of the automatic alkali feeder is connected to the feeding end of the alkali washing water tank; A water processor, the water outlet of which is connected to the water inlet of the acid washing water tank and the water inlet of the alkaline washing water tank, respectively; A water tank backwasher, wherein the flushing end of the water tank backwasher is connected to the cleaning end of the acid washing water tank and the cleaning end of the alkaline washing water tank, respectively. A sludge discharge device, wherein the sludge inlet end of the sludge discharge device is connected to the sludge discharge end of the acid washer and the alkali washer respectively; A clean water collection tank, one end of which is connected to the first interface of the clean water discharge end of the water tank backwasher; A sprayer is located inside the main cylinder and is arranged between the fish-scale hole screen cylinder and the upper support frame; the liquid inlet end of the sprayer is connected to the other end of the clean water collection tank. The control system is connected to the acid washer, the second sensor integrated block, the acid washer water tank, the automatic acid adder, the alkali washer, the third sensor integrated block, the alkali washer water tank, the automatic alkali adder, the water processor, the water tank backwasher, the sludge remover, and the sprayer.

7. The rapid deep dewatering system for water-containing materials as described in claim 6, characterized in that; The air inlet of the water mist separator is connected to the air outlet of the alkaline scrubber via a first separation pipe, and the drain of the water mist separator is connected to the water inlet of the water tank backwasher and one end of the clean water collection tank, respectively. One end of the main blower is connected to the air outlet of the water mist separator via a second separation pipe, and the other end of the main blower is connected to the air inlet of the exhaust gas treatment device via a third separation pipe. The rapid deep dehydration system for water-containing materials further includes a second airflow valve, a fourth sensor integrated block, and a fifth sensor integrated block. The second airflow valve is installed on the third separation pipe. The fourth sensor integrated block is installed on the first separation pipe. The fifth sensor integrated block is installed on the second separation pipe. The control system is connected to the second airflow valve, the fourth sensor integrated block, and the fifth sensor integrated block, respectively.

8. The rapid deep dewatering system for water-containing materials as described in claim 7, characterized in that, The high and low temperature gas circuit device also includes: A compressor, one end of which is connected to the low-temperature gas inlet of the heat exchanger; A first air source evaporator, the outlet of which is connected to a first inlet at the other end of the compressor; An expansion valve, one end of which is connected to the high-temperature gas inlet of the heat exchanger; A gas-liquid source evaporator, wherein the first outlet of the gas-liquid source evaporator is connected to the other end of the expansion valve, and the second outlet of the gas-liquid source evaporator is connected to the second inlet of the other end of the compressor; A gas-liquid heat source, the output end of which is connected to the inlet of the gas-liquid evaporator; The sixth sensor integrated block is disposed at one end of the first high-temperature pipeline near the cyclone dryer; The seventh sensor integrated block is disposed at one end of the first cryogenic pipeline near the main cylinder. The control system is connected to the compressor, the first air source evaporator, the expansion valve, the gas-liquid source evaporator, the gas-liquid heat source, the sixth sensor integrated block, and the seventh sensor integrated block, respectively.

9. The rapid deep dewatering system for water-containing materials as described in claim 8, characterized in that, The exhaust gas treatment device includes: The first activated carbon adsorption device has an air inlet end connected to the other end of the main fan through the third separation pipe, and a first air outlet end connected to the inlet of the first air source evaporator through the first adsorption pipe. The third airflow valve is installed on the first adsorption pipe; The eighth sensor integrated block is arranged on the first adsorption pipe and is located between the first activated carbon adsorption device and the third airflow valve. The second activated carbon adsorption device has an air inlet end connected to the second air outlet end of the first activated carbon adsorption device via a second adsorption pipe. A first pressure control valve is located at one end of the second adsorption pipeline near the second activated carbon adsorption device. The second pressure control valve is located at the first outlet end of the second activated carbon adsorption device. An activated carbon activation device, wherein the inlet end of the activated carbon activation device is connected to the third outlet end of the first activated carbon adsorption device; The exhaust gas discharge pipe has a first inlet end connected to the activated carbon activation device via a third adsorption pipe, and a second inlet end connected to the second outlet end of the second activated carbon adsorption device. The fourth airflow valve is located at one end of the third adsorption tube near the activated carbon activation device. The third pressure control valve is located at the outlet end of the exhaust pipe. The control system is connected to the first activated carbon adsorption device, the third airflow valve, the second activated carbon adsorption device, the first pressure control valve, the second pressure control valve, the activated carbon activation device, the fourth airflow valve, and the third pressure control valve, respectively.

10. The rapid deep dewatering system for water-containing materials as described in claim 9, characterized in that, The rapid deep dehydration system for water-containing materials also includes: The outer sealing cover houses the dehydration device, the high and low temperature gas path device, the dust removal device, the washing device, the water mist separator, and the main fan. One end of the feeding conveying channel is located outside the outer sealing cover. The outlet end of the exhaust pipe is located outside the outer sealing cover. An inspection door is provided on one side of the outer sealing cover to connect the outside of the outer sealing cover with the inside of the main cylinder. An automatic lubricating oil filling device is located inside the outer sealing cover. The oil outlet of the automatic lubricating oil filling device is connected to the oil filling end of the upper bearing, the oil filling end of the lower bearing, the oil filling end of the feeding conveying channel, the oil filling end of the material dispersing cutter disc, the oil filling end of the drive motor, the oil filling end of the main fan, and the oil filling end of the high-speed fan. An oxygen concentration alarm monitoring device is located outside the outer sealing cover and is installed at the outlet end of the exhaust pipe. An oxygen concentration sensor is located inside the outer sealing cover and is installed at the second outlet end of the exhaust pipe. A nitrogen supply device is located inside the outer sealing cover. The first outlet of the nitrogen supply device is connected to the heat pump sealing cover through a first nitrogen pipe, and the second outlet of the nitrogen supply device is in communication with the space inside the outer sealing cover. A rapid ventilation device is provided on one side of the outer sealing cover, and the rapid ventilation device is adjustablely connected to the outer sealing cover. The control system is connected to the automatic lubricating oil filling device, the oxygen concentration alarm monitoring device, the oxygen concentration sensor, the nitrogen supply device, and the rapid ventilation device.

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