Regeneration system of fly ash for treating organic matters in sodium aluminate solution

Abstract

The invention discloses a regeneration system of fly ash for treating sodium aluminate solution organic matters, and relates to the technical field of fly ash filter cake regeneration, the regeneration system comprises a feed crushing device, the feed crushing device is connected with a pre-drying device, the pre-drying device is connected with an activation device, and the pre-drying device is also connected with a heat supply device capable of supplying heat; the activation equipment comprises a heating chamber and a cooling chamber, a first processing chamber is arranged in the heating chamber, a second processing chamber is arranged in the cooling chamber, the head end of the first processing chamber is connected with the pre-drying equipment, and the tail end of the first processing chamber is connected with the head end of the second processing chamber. According to the invention, pyrolysis of organic matters in the fly ash filter cake is realized by utilizing nitrogen and a high-temperature environment, so that blocked active sites are reactivated, new holes are developed by utilizing attached alkali in the fly ash filter cake, and the removal performance of fly ash is improved; and meanwhile, generated pyrolysis gas is collected as supplementary fuel, so that harmlessness and recycling of fly ash filter cake regeneration are realized.

Description

Technical Field

[0001] The invention relates to the technical field of fly ash filter cake regeneration, in particular to a fly ash regeneration system for treating organic matter in a sodium aluminate solution. Background Art

[0002] Common methods used by alumina plants both domestically and internationally to treat organic matter in sodium aluminate solutions include liquid / solid combustion, wet oxidation, fine seed washing and causticization, and cooling crystallization. However, these methods present economic, environmental, and safety challenges in actual production, and their removal effectiveness is limited. A currently widely used method for removing organic matter involves mixing fly ash captured from the coal-to-gas process in alumina production with a sodium aluminate solution in a tank. The pores of the fly ash adsorb organic matter from the sodium aluminate solution. After a certain reaction time, a filter press is used for solid-liquid separation, where the impurities and fly ash form a filter cake, and the liquid phase is returned to the production system. This method offers excellent organic matter removal effectiveness, wide applicability, and broad application prospects. However, in actual use, the fly ash becomes inactivated after just one use, resulting in low utilization rates. Especially in the environment where domestic bauxite mining is restricted, some inland or coastal areas purchase imported ore for production. The imported ore has a higher organic matter content, and the demand for fly ash has increased. However, there is a lack of regeneration technology solutions for fly ash used to treat organic matter in sodium aluminate solution on the market. Therefore, how to activate and regenerate fly ash filter cake has become an urgent problem to be solved. Summary of the Invention

[0003] The object of the present invention is to provide a regeneration system for fly ash used for treating organic matter in sodium aluminate solution, so as to solve the problem mentioned in the background art that, in the process of using fly ash to adsorb organic matter in sodium aluminate solution, the fly ash is deactivated after only one use, resulting in low utilization rate, while there is a lack of regeneration technology solutions for fly ash used for treating organic matter in sodium aluminate solution on the market.

[0004] The present invention adopts the following technical solutions:

[0005] The present invention provides a regeneration system for treating fly ash used for organic matter in sodium aluminate solution, comprising a feed crushing device, wherein the feed crushing device is connected to a pre-drying device, the pre-drying device is connected to an activation device, and the pre-drying device is further connected to a heating device capable of providing heat;

[0006] The activation equipment includes a heating chamber and a cooling chamber, wherein a first processing chamber is provided in the heating chamber, and a second processing chamber is provided in the cooling chamber, wherein the head end of the first processing chamber is connected to the pre-drying equipment, the tail end of the first processing chamber is connected to the head end of the second processing chamber, and the tail end of the second processing chamber is a discharge port;

[0007] A first screw feeder is disposed in the first processing chamber, and a second screw feeder is disposed in the second processing chamber.

[0008] Preferably, the feed crushing equipment includes a feed bin, a feed end of the feed bin is connected to a third screw feeder, and a discharge end of the third screw feeder is connected to the pre-drying equipment.

[0009] Preferably, a first crushing blade is provided in the discharge end of the feed bin.

[0010] Preferably, the pre-drying equipment includes a dryer, the feed port of the dryer is connected to the feed crushing equipment, and the dryer is provided with a hot air inlet, which is connected to the heating equipment;

[0011] The discharge port of the dryer is connected to a cyclone separator, and the cyclone separator is provided with a separator solid phase outlet and a separator gas phase outlet, the separator solid phase outlet is connected to the first processing chamber, and the separator gas phase outlet is connected to a bag dust collector, and the bag dust collector is provided with a dust collector solid phase outlet and a dust collector gas phase outlet, the dust collector solid phase outlet is connected to the first processing chamber, and the dust collector gas phase outlet is connected to the heating equipment;

[0012] A second crushing blade is provided in the dryer.

[0013] Preferably, a nitrogen inlet is provided on the cavity channel at the tail end of the second processing chamber, and an activated tail gas outlet is provided on the cavity channel at the head end of the first processing chamber, and the activated tail gas outlet is connected to the heating equipment.

[0014] Preferably, a heating coil is provided in the heating chamber, and the heating coil is provided on the outer wall of the first processing chamber.

[0015] Preferably, a spray pipe is provided in the cooling chamber, a plurality of nozzles are provided on the spray pipe, and the spray pipe and the nozzles are arranged above the second processing chamber;

[0016] The water inlet of the spray pipe is located on one side of the cooling chamber close to the rear end port of the second processing chamber;

[0017] A water vapor outlet is provided on a side of the cooling chamber away from the rear end port of the second processing chamber.

[0018] Preferably, the heating equipment includes a blower, the blower is connected to a heat exchanger, the heat exchanger is connected to a hot air stove, and the hot air outlet of the hot air stove is connected to the hot air inlet;

[0019] The gas phase outlet of the dust collector is connected to the heat exchanger.

[0020] Preferably, the heating equipment includes a blower, the blower is connected to a heat exchanger, the heat exchanger is connected to a hot air furnace, and the hot air outlet of the hot air furnace is connected to the pre-drying equipment;

[0021] The activated tail gas outlet is connected to the hot blast furnace through a metal dust collector.

[0022] Preferably, the heating equipment includes a blower, the blower is connected to a heat exchanger, the heat exchanger is connected to a hot air furnace, and the hot air outlet of the hot air furnace is connected to the pre-drying equipment;

[0023] The activated tail gas outlet is connected to the heat exchanger through a metal dust collector.

[0024] Compared with the prior art, the present invention has the following beneficial technical effects:

[0025] This invention utilizes nitrogen and a high-temperature environment to achieve pyrolysis of organic matter in the fly ash filter cake and the development of new pores. Under high-temperature conditions, organic matter adsorbed by the fly ash volatilizes as gas, reactivating blocked active sites. Simultaneously, the alkali in the fly ash filter cake is used to develop new pores, improving fly ash removal performance. This not only regenerates fly ash but also collects the generated pyrolysis gas as supplemental fuel to prevent secondary pollution, thus achieving harmless and resourceful fly ash regeneration.

[0026] The present invention regenerates and utilizes fly ash filter cake, which greatly alleviates the demand pressure for fly ash and reduces the pressure of filter cake treatment. At the same time, it can form a circulation system with the existing fly ash treatment sodium aluminate solution process, effectively reducing the cost of organic matter removal, and making this technology have a broader application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] Figure 1 This is a diagram showing the main steps of a regeneration system for treating fly ash used for treating organic matter in sodium aluminate solution according to Example 1 of the present invention;

[0029] Figure 2 This is a schematic structural diagram of a pre-drying device in a regeneration system for treating fly ash used for organic matter in sodium aluminate solution according to Example 1 of the present invention;

[0030] Figure 3 This is a schematic structural diagram of the activation equipment in the regeneration system for treating fly ash used for organic matter in sodium aluminate solution according to Example 1 of the present invention;

[0031] Figure 4 This is a flow chart of a regeneration system for treating fly ash used for organic matter in sodium aluminate solution according to Example 1 of the present invention;

[0032] Figure 5This is a flow chart of a regeneration system for treating fly ash used for organic matter in sodium aluminate solution according to Example 2 of the present invention.

[0033] Explanation of reference numerals: 1. Feed crushing equipment; 1-1. Feed bin; 1-1-1. First crushing blade; 1-2. Feeder; 2. Pre-drying equipment; 2-1. Dryer; 2-1-1. Hot air inlet; 2-1-2. Second crushing blade; 2-2. Cyclone separator; 2-2-1. Separator solid phase outlet; 2-2-2. Separator gas phase outlet; 2-3. Bag dust collector; 2-3-1. Dust collector solid phase outlet; 2-3-2. Dust collector gas phase outlet; 3. Heating equipment; 3-1. Blower; 3 -2, heat exchanger; 3-3, hot air furnace; 3-4, metal dust collector; 4, activation equipment; 4-1, heating chamber; 4-1-1, heating coil; 4-2, first processing chamber; 4-2-1, activation tail gas outlet; 4-3, cooling chamber; 4-3-1, spray pipe; 4-3-2, nozzle; 4-3-3, water vapor outlet; 4-4, second processing chamber; 4-4-1, nitrogen inlet; 4-5, first screw feeder; 4-6, second screw feeder; 4-7, first butterfly valve; 4-8, second butterfly valve. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0035] Example 1

[0036] like Figures 1 to 4 As shown, this embodiment discloses a regeneration system for treating fly ash used for organic matter in sodium aluminate solution, including a feed crushing device 1, the feed crushing device 1 is connected to a pre-drying device 2, the pre-drying device 2 is connected to an activation device 4, and the pre-drying device 2 is also connected to a heating device 3 that can provide heat.

[0037] The activation device 4 includes a heating chamber 4-1 and a cooling chamber 4-3. A first processing chamber 4-2 is disposed within the heating chamber 4-1, and a second processing chamber 4-4 is disposed within the cooling chamber 4-3. The leading end of the first processing chamber 4-2 is connected to the pre-drying device 2, and the trailing end of the first processing chamber 4-2 is connected to the leading end of the second processing chamber 4-4, so that the two are in communication. In this embodiment, a thermal insulation material is provided above the first processing chamber 4-2 within the heating chamber 4-1.

[0038] A first screw feeder 4-5 is provided within the first processing chamber 4-2, and a second screw feeder 4-6 is provided within the second processing chamber 4-4. When the first screw feeder 4-5 rotates, it can transport material from the feed port (i.e., the head end of the first processing chamber 4-2) through the heating chamber 4-1, after which it is heated, to the discharge port (i.e., the tail end of the first processing chamber 4-2) and enter the second processing chamber 4-4. The rotation of the second screw feeder 4-6 then allows the material to be cooled in the cooling chamber 4-3 and ultimately discharged from the discharge port of the second processing chamber 4-4 (i.e., the tail end of the second processing chamber 4-4). In this embodiment, both the heating chamber 4-1 and the cooling chamber 4-3 are enclosed chambers, and are respectively sealed around the outside of the first processing chamber 4-2 and the second processing chamber 4-4. The heating chamber 4-1 and the cooling chamber 4-3 are stacked one above the other and arranged end to end. The first screw feeder 4-5 and the second screw feeder 4-6 rotate in opposite directions.

[0039] It should be noted that the first screw feeder 4-5 and the second screw feeder 4-6 are both shaftless screw feeders. The shaftless screw feeder is a mature existing technology. Simply put, it is only provided with a spiral rotating blade, and its axis position is a cavity. In this embodiment, when conveying the material, there will not be too much material to avoid blocking the entire cavity, thereby ensuring that the nitrogen can flow smoothly.

[0040] A nitrogen inlet 4-4-1 is provided on the cavity at the tail end of the second treatment chamber 4-4, and an activated tail gas outlet 4-2-1 is provided on the cavity at the head end of the first treatment chamber 4-2, and the activated tail gas outlet 4-2-1 is connected to the heating equipment 3. Nitrogen enters the second treatment chamber 4-4 part in the cooling chamber 4-3 through the nitrogen inlet 4-4-1 and then enters the first treatment chamber 4-2 part in the heating chamber 4-1, and is finally discharged through the activated tail gas outlet 4-2-1 and enters the heating equipment 3 (it should be noted that the feed port of the first treatment chamber 4-2 is only for the fly ash filter cake to enter, and the activated tail gas will not be released). Among them, nitrogen can make the cavity be in a nitrogen range to avoid the fly ash filter cake from burning under the high temperature of the heating chamber 4-1. It should be noted that nitrogen can also be replaced by other inert gases. In this embodiment, nitrogen is used for cost reasons.

[0041] In this embodiment, a first butterfly valve 4-7 and a second butterfly valve 4-8 are provided at the tail end of the second processing chamber 4-4. The two butterfly valves are opened alternately to ensure that discharge can be performed while preventing nitrogen from being discharged from the discharge end of the second processing chamber 4-4. Specifically, the first butterfly valve 4-7 is first opened and the second butterfly valve 4-8 is closed. The activated fly ash falls onto the second butterfly valve 4-8. When the fly ash between the two butterfly valves accumulates to a certain amount, the first butterfly valve 4-7 is closed and the second butterfly valve 4-8 is opened. At this time, the fly ash between the first butterfly valve 4-7 and the second butterfly valve 4-8 can be discharged without affecting the entry and normal circulation of nitrogen. After the discharge is completed, the second butterfly valve 4-8 is closed again and the first butterfly valve 4-7 is opened.

[0042] A heating coil 4-1-1 is provided in the heating chamber 4-1. The heating coil 4-1-1 is provided on the outer wall of the first processing chamber 4-2 to heat it, so that the temperature in the first processing chamber 4-2 after heating is maintained in the range of 600 to 650 degrees Celsius.

[0043] A spray pipe 4-3-1 is installed within the cooling chamber 4-3. Several nozzles 4-3-2 are mounted on the spray pipe 4-3-1. The spray pipe 4-3-1 and nozzles 4-3-2 are positioned above the second processing chamber 4-4. The water inlet of the spray pipe 4-3-1 is located on the side of the cooling chamber 4-3 near the rear end of the second processing chamber 4-4 (i.e., the discharge end of the second processing chamber 4-4). A water vapor outlet 4-3-3 is also located on the side of the cooling chamber 4-3 away from the rear end of the second processing chamber 4-4. The spray pipe 4-3-1 introduces cold water to spray the outer wall of the second processing chamber 4-4, thereby cooling the interior of the second processing chamber 4-4 to below 80 degrees Celsius. The water vapor generated by the spraying is discharged through the water vapor outlet 4-3-3.

[0044] The feed crushing device 1 includes a feed bin 1-1, the discharge end of the feed bin 1-1 is connected to the third screw feeder 1-2, and the discharge end of the third screw feeder 1-2 is connected to the pre-drying device 2. Among them, a first crushing blade 1-1-1 is arranged in the discharge end of the feed bin 1-1 to facilitate crushing the fly ash filter cake. Among them, the first crushing blade 1-1-1 is rotatably arranged in the feed bin 1-1, and the feed bin 1-1 is provided with a top cover, and the top cover is provided with a feed port. The rotating shaft of the first crushing blade 1-1-1 is rotatably arranged in the top cover. The rotating shaft of the first crushing blade 1-1-1 passes through the top cover and is connected to the motor by a synchronous belt or chain.

[0045] The pre-drying equipment 2 includes a dryer 2-1, the feed port of the dryer 2-1 is connected to the feed crushing equipment 1, and a hot air inlet 2-1-1 is provided on the dryer 2-1, which is connected to the hot air furnace 3-3 in the heating equipment 3. The discharge port of the dryer 2-1 is connected to the cyclone separator 2-2, and the cyclone separator 2-2 is provided with a separator solid phase outlet 2-2-1 and a separator gas phase outlet 2-2-2. The separator solid phase outlet 2-2-1 is connected to the feed port of the first processing chamber 4-2 through a tube chain conveyor, and the separator gas phase outlet 2-2-2 is connected to the bag dust collector 2-3. The bag dust collector 2-3 is provided with a dust collector solid phase outlet 2-3-1 and a dust collector gas phase outlet 2-3-2. The dust collector solid phase outlet 2-3-1 is connected to the feed port of the first processing chamber 4-2 through a tube chain conveyor, and the dust collector gas phase outlet 2-3-2 is connected to the heat exchanger 3-2 in the heating equipment 3.

[0046] Heating equipment 3 includes a blower 3-1, which is connected to a heat exchanger 3-2, a plate-type heat exchanger. Heat exchanger 3-2 is connected to a hot air furnace 3-3, whose hot air outlet is connected to the hot air inlet 2-1-1. The dust collector gas phase outlet 2-3-2 is connected to heat exchanger 3-2. Heat exchanger 3-2 includes a cold medium channel and a hot medium channel. Cold air from blower 3-1 enters through the cold medium channel inlet of heat exchanger 3-2, where it is heated after heat exchange and then sent to hot air furnace 3-3. The dust removal exhaust gas from dust collector gas phase outlet 2-3-2 is already warm. This gas is connected to the hot medium channel inlet of heat exchanger 3-2, where it participates in the heat exchange and transfers heat to the cold air from blower 3-1, thereby achieving energy recovery.

[0047] The activated tail gas outlet 4-2-1 is connected to the hot blast furnace 3-3 through the metal dust collector 3-4. The hot blast furnace 3-3 uses natural gas or coal gas as fuel. The activated tail gas discharged from the activated tail gas outlet 4-2-1 is dust-removed by the metal dust collector 3-4 and then sent to the hot blast furnace 3-3 for combustion. This not only reduces energy consumption but also prevents secondary pollution caused by the activated tail gas. It should be noted that during the activation process within the activation equipment 4, the pyrolysis of a large amount of organic matter produces a large amount of combustible gases (such as CO). Furthermore, the amount of nitrogen input does not need to be excessive; it is sufficient to maintain a slightly positive pressure within the first and second processing chambers 4-2 and 4-4. After the nitrogen and combustible gases enter the hot blast furnace 3-3, the combustible gases therein are burned (the CO concentration is sufficiently safe to prevent explosion), thereby achieving the goal of reducing energy consumption.

[0048] In this embodiment, a second crushing blade 2-1-2 is provided in the dryer 2-1. The second crushing blade 2-1-2 is rotatably provided in the dryer 2-1. The rotating shaft of the second crushing blade 2-1-2 passes through the bottom of the dryer 2-1 and is connected to the motor by means of a synchronous belt or chain. The second crushing blade 2-1-2 is used to further crush the filter cake input.

[0049] In this embodiment, the first screw feeder 4 - 5 , the second screw feeder 4 - 6 , and the third screw feeder 1 - 2 are all screw feeders whose rotation speeds can be adjusted and controlled by a frequency converter.

[0050] The working principle of the present invention is as follows:

[0051] First, the fly ash filter cake is put into the feed bin 1-1, and pushed into the dryer 2-1 through the third screw feeder 1-2. The fly ash filter cake is crushed by the first crushing blade 1-1-1 and the second crushing blade 2-1-2 at the bottom of the feed bin 1-1 and in the dryer 2-1. At this time, the air brought in by the blower 3-1 is preheated through the heat exchanger 3-2 and the hot air furnace 3-3 and then enters the dryer 2-1 through the hot air inlet 2-1-1 to dry the fly ash filter cake, so that the water content of the fly ash filter cake to be treated is controlled within 10%. The filter cake material after hot air drying enters the cyclone separator 2-2, and the solid material separated by the solid phase outlet 2-2-1 of the separator enters the activation equipment 4 through a tube chain conveyor for activation treatment, while the gas separated by the gas phase outlet 2-2-2 of the separator enters the bag dust collector 2-3 for further gas-solid separation treatment. The solid material separated by the solid phase outlet 2-3-1 of the dust collector enters the activation equipment 4 through a tube chain conveyor for activation treatment, and the gas separated by the gas phase outlet 2-3-2 of the dust collector enters the heat exchanger 3-2 for heat exchange with the air brought in by the blower 3-1, which is conducive to energy saving.

[0052] The filter cake material entering the first processing chamber 4-2 is continuously stirred and moved forward by the first screw feeder 4-5, and then sent to the heating chamber 4-1, and the heating coil 4-1-1 is heated and maintained at a heating temperature of 600 to 650 degrees Celsius. At the same time, under the action of nitrogen entering through the nitrogen inlet 4-4-1, the organic matter in the filter cake material is desorbed and decomposed from the filter cake pores under the action of high temperature. At the same time, the alkali in the fly ash filter cake acts as an activator. Under the intercalation and corrosion action of the alkali, new pores in the fly ash are developed. Under the combined action of high temperature and activator, the fly ash filter cake can further improve the organic matter removal performance during the regeneration process. Afterwards, with the continuous stirring and pushing of the first screw feeder 4-5, it moves to the tail end of the first processing chamber 4-2, and relies on its own gravity and the push of subsequent materials to enter the second processing chamber 4-4, and continues to move forward under the push of the second screw feeder 4-6. It is cooled by nitrogen and sprayed by the nozzle 4-3-2 to make the temperature below 80 degrees Celsius. After cooling, the fly ash filter cake is regenerated. Among them. Nitrogen is introduced through the nitrogen inlet 4-4-1, and the organic gas generated by the thermal decomposition of organic matter is discharged from the activation tail gas outlet 4-2-1. During the activation treatment process, the first screw feeder 4-5 and the second screw feeder 4-6 adjust the rotation speed through the frequency converter, and then the duration of the fly ash filter cake activation treatment can be adjusted.

[0053] The tail gas discharged from the activated tail gas outlet 4-2-1 enters the metal dust collector 3-4 to remove smoke and dust, and is then sent to the hot blast furnace 3-3 for combustion, which further reduces fuel consumption and does not generate secondary pollution, thus achieving the effect of energy conservation and emission reduction.

[0054] This invention utilizes nitrogen and a high-temperature environment to achieve pyrolysis of organic matter in the fly ash filter cake and the development of new pores. Under high-temperature conditions, organic matter adsorbed by the fly ash volatilizes as gas, reactivating clogged active sites. Simultaneously, the alkali in the fly ash filter cake is utilized to develop new pores, improving fly ash removal performance. The generated pyrolysis gas is collected as supplemental fuel to prevent secondary pollution, achieving harmless and resourceful regeneration of the fly ash filter cake.

[0055] Example 2

[0056] like Figure 5 As shown, in this embodiment, activated exhaust gas discharged from activated exhaust gas outlet 4-2-1 undergoes dust removal in metal dust collector 3-4 and then connects to the heat medium channel inlet of heat exchanger 3-2, participating in heat exchange and transferring its heat to the cold air brought in by blower 3-1. After the heat exchange, the activated exhaust gas, which has been heated (cooled), is then sent to hot air furnace 3-3 for combustion as fuel. The remaining structure, connection relationship, and operating principle of this embodiment are the same as those of Example 1.

[0057] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A regeneration system for treating fly ash from organic matter in sodium aluminate solution, characterized by: The invention comprises a feed crushing device (1), wherein the feed crushing device (1) is connected to a pre-drying device (2), the pre-drying device (2) is connected to an activation device (4), and the pre-drying device (2) is further connected to a heating device (3) capable of providing heat; The activation device (4) includes a heating chamber (4-1) and a cooling chamber (4-3), wherein a first processing chamber (4-2) is provided in the heating chamber (4-1), and a second processing chamber (4-4) is provided in the cooling chamber (4-3), wherein the head end of the first processing chamber (4-2) is connected to the pre-drying device (2), and the tail end of the first processing chamber (4-2) is connected to the head end of the second processing chamber (4-4), and the tail end of the second processing chamber (4-4) is a discharge port; A first screw feeder (4-5) is provided in the first processing chamber (4-2), and a second screw feeder (4-6) is provided in the second processing chamber (4-4).

2. The regeneration system for treating fly ash from sodium aluminate solution organic matter according to claim 1, characterized in that: The feed crushing equipment (1) comprises a feed bin (1-1), a discharge end of the feed bin (1-1) is connected to a third screw feeder (1-2), and a discharge end of the third screw feeder (1-2) is connected to the pre-drying equipment (2).

3. The regeneration system for treating fly ash from sodium aluminate solution organic matter according to claim 2, characterized in that: A first crushing blade (1-1-1) is provided in the discharge end of the feed bin (1-1).

4. The regeneration system for treating fly ash from sodium aluminate solution organic matter according to claim 1, characterized in that: The pre-drying device (2) comprises a dryer (2-1), a feed port of the dryer (2-1) is connected to the feed crushing device (1), a hot air inlet (2-1-1) is provided on the dryer (2-1), and the hot air inlet (2-1-1) is connected to the heating device (3); The discharge port of the dryer (2-1) is connected to a cyclone separator (2-2), the cyclone separator (2-2) is provided with a separator solid phase outlet (2-2-1) and a separator gas phase outlet (2-2-2), the separator solid phase outlet (2-2-1) is connected to the first processing chamber (4-2), the separator gas phase outlet (2-2-2) is connected to a bag dust collector (2-3), the bag dust collector (2-3) is provided with a dust collector solid phase outlet (2-3-1) and a dust collector gas phase outlet (2-3-2), the dust collector solid phase outlet (2-3-1) is connected to the first processing chamber (4-2), and the dust collector gas phase outlet (2-3-2) is connected to the heating equipment (3); A second crushing blade (2-1-2) is provided in the dryer (2-1).

5. The regeneration system for treating fly ash from sodium aluminate solution organic matter according to claim 1, characterized in that: A nitrogen inlet (4-4-1) is provided on the cavity channel at the tail end of the second processing chamber (4-4), and an activated tail gas outlet (4-2-1) is provided on the cavity channel at the head end of the first processing chamber (4-2), and the activated tail gas outlet (4-2-1) is connected to the heating equipment (3).

6. The regeneration system for treating fly ash from sodium aluminate solution organic matter according to claim 1, characterized in that: A heating coil (4-1-1) is provided in the heating chamber (4-1), and the heating coil (4-1-1) is provided on the outer wall of the first processing chamber (4-2).

7. The regeneration system for treating fly ash from sodium aluminate solution organic matter according to claim 1, characterized in that: A spray pipe (4-3-1) is provided in the cooling chamber (4-3), a plurality of spray heads (4-3-2) are provided on the spray pipe (4-3-1), and the spray pipe (4-3-1) and the spray heads (4-3-2) are arranged above the second processing chamber (4-4); The water inlet of the spray pipe (4-3-1) is located on one side of the cooling chamber (4-3) close to the tail end port of the second processing chamber (4-4); A water vapor outlet (4-3-3) is provided on one side of the cooling chamber (4-3) away from the rear end port of the second processing chamber (4-4).

8. The regeneration system for treating fly ash from sodium aluminate solution organic matter according to claim 4, characterized in that: The heating equipment (3) comprises a blower (3-1), the blower (3-1) is connected to a heat exchanger (3-2), the heat exchanger (3-2) is connected to a hot air furnace (3-3), and the hot air outlet of the hot air furnace (3-3) is connected to the hot air inlet (2-1-1); The dust collector gas phase outlet (2-3-2) is connected to the heat exchanger (3-2).

9. The regeneration system for treating fly ash from sodium aluminate solution organic matter according to claim 5, characterized in that: The heating equipment (3) includes a blower (3-1), the blower (3-1) is connected to a heat exchanger (3-2), the heat exchanger (3-2) is connected to a hot air furnace (3-3), and the hot air outlet of the hot air furnace (3-3) is connected to the pre-drying equipment (2); The activated tail gas outlet (4-2-1) is connected to the hot air furnace (3-3) through a metal dust collector (3-4).

10. The regeneration system for fly ash used for treating organic matter in sodium aluminate solution according to claim 5, characterized in that: The heating equipment (3) includes a blower (3-1), the blower (3-1) is connected to a heat exchanger (3-2), the heat exchanger (3-2) is connected to a hot air furnace (3-3), and the hot air outlet of the hot air furnace (3-3) is connected to the pre-drying equipment (2); The activated tail gas outlet (4-2-1) is connected to the heat exchanger (3-2) through a metal dust collector (3-4).

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