CN114644928A - Process for producing and processing soil conditioner by taking fly ash as raw material - Google Patents
Process for producing and processing soil conditioner by taking fly ash as raw material Download PDFInfo
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- CN114644928A CN114644928A CN202210379679.4A CN202210379679A CN114644928A CN 114644928 A CN114644928 A CN 114644928A CN 202210379679 A CN202210379679 A CN 202210379679A CN 114644928 A CN114644928 A CN 114644928A
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Abstract
The invention discloses a process for producing and processing a soil conditioner by taking fly ash as a raw material. According to the invention, by arranging the mixing device, the powder is mixed by the mixing device through wind power, different powder is blown into the air pipe through the feeding fan and the feeding pipe, airflow turbulence is generated under the action of the screen plate component and the adjusting component, and the powder is mixed by the airflow turbulence, so that the powder is uniformly mixed and the mixing speed is higher; through setting up drying device to the waste heat of the burning furnace of the utilization, high temperature tail gas and the high temperature powder after the calcination provide heat energy, dry wet material, can reduce the required energy of wet material of stoving, thereby reach the purpose of energy saving, and when drying wet material, can accelerate the cooling of high temperature powder.
Description
Technical Field
The invention relates to the technical field of soil conditioners processed by fly ash. In particular to a process for producing and processing a soil conditioner by taking fly ash as a raw material.
Background
The fly ash is fine ash collected from tail gas of a coal-fired boiler, is a recyclable solid waste, and increases the demand of electric energy and the discharge amount of the fly ash of a coal-fired power plant year by year along with the progress of the electric power industry in China; the fly ash can be processed to become a soil conditioner for improving and neutralizing acid soil, a large amount of electric energy is consumed in the process of processing the fly ash in the prior art, the available heat energy is not recovered in place, certain waste is caused, and in the process of processing, the fly ash is generally stirred and mixed with other materials by a mechanical stirrer, so that the mixing is slow and the uniformity is poor.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide a process for producing and processing a soil conditioner by taking fly ash as a raw material, which has a good mixing effect and saves energy.
In order to solve the technical problems, the invention provides the following technical scheme: the process for producing and processing the soil conditioner by taking the fly ash as a raw material comprises the following steps:
step A: mixing the fly ash and the solid alkali powder by using a mixing device, and uniformly mixing the fly ash and the solid alkali powder, wherein the mass ratio of the fly ash to the solid alkali powder is 1: 1 to 1: 5, inputting the mixed fly ash and solid alkali powder into a cyclone separator for gas-solid separation;
and B: grinding the mixed fly ash and solid alkali powder by using a grinder to refine the powder;
and C: roasting the ground fly ash and solid alkali powder by using a roasting furnace to obtain fly ash clinker;
step D: washing the calcined fly ash by using a washing and filter-pressing device, and carrying out filter pressing;
step E: the powder after the filter pressing is dried by utilizing the drying device, the dried solid is mixed with the biomass charcoal, and the mass ratio of the dried solid to the biomass charcoal is 1: 1.
the above-mentioned use fly ash as raw materials production processing soil conditioner technology, mixing arrangement includes the tuber pipe, the first end intercommunication of tuber pipe has the forced draught blower, the lateral wall intercommunication of tuber pipe has the inlet pipe, the inlet pipe inserts the inside of tuber pipe, the other end intercommunication of tuber pipe has the pay-off fan, the feed inlet intercommunication of pay-off fan has the storage silo, the middle part of tuber pipe is provided with the otter board subassembly, the rear of otter board subassembly is provided with adjusting part.
According to the process for producing and processing the soil conditioner by taking the fly ash as the raw material, the screen plate assembly comprises a fixed cylinder, a plurality of air blowing pipes are vertically arranged at the top and the bottom of the inner wall of the fixed cylinder, a plurality of air holes are formed in the side wall of each air blowing pipe along the circumferential direction, the air blowing pipes are communicated with one another, scraping sleeves are sleeved on the surfaces of the air blowing pipes, elastic connecting rods are fixedly connected to the side walls of the scraping sleeves, the scraping sleeves are connected through the elastic connecting rods, a push rod is arranged at the top of the middle scraping sleeve, and the top end of the push rod penetrates out of an air pipe; the side wall of the fixed cylinder is fixedly connected with the inner wall of the air pipe.
In the process for producing and processing the soil conditioner by taking the fly ash as the raw material, the adjusting component comprises a barrel, a rolling bearing is arranged on the side wall of the barrel, an inner shaft coaxial with the inner shaft is arranged in the barrel, the side surface of the inner shaft is movably connected with a rotating shaft along the diameter direction of the inner shaft, the other end of the rotating shaft penetrates through the side wall of the barrel and movably penetrates through the rolling bearing, a gear is connected to the end part of the rotating shaft in a transmission manner, a bracket is fixedly connected to the top of the barrel, a worm is movably connected to the side surface of the bracket, a supporting bearing coaxial with the barrel is arranged on the surface of the barrel, a gear ring is sleeved on the surface of the supporting bearing, end face teeth meshed with the gear are arranged on the side wall of the gear ring, worm teeth meshed with the worm are arranged on the surface of the gear ring, the rear end of the inner shaft is fixedly connected with the inner wall of the barrel through a supporting rod, and a first motor is arranged at the front end of the inner shaft, the surface of the output shaft of the first motor is fixedly connected with fan blades; the front end of the inner cylinder is fixedly connected with the tail end of the air pipe, the tail end of the inner cylinder is communicated with a feed inlet of a cyclone separator, a discharge outlet of the cyclone separator is communicated with a feed inlet of a grinding machine, and ground powder is transferred into the roasting furnace through a transfer device.
According to the process for producing and processing the soil conditioner by taking the fly ash as the raw material, the roasting furnace comprises a roasting furnace body, the top of the roasting furnace body is communicated with an exhaust pipe, the middle part of the exhaust pipe is provided with an exhaust fan, the side wall of the roasting furnace body is internally provided with a heat exchange pipe, the upper part of the heat exchange pipe is communicated with a first liquid outlet pipe, and the lower part of the heat exchange pipe is communicated with a first liquid inlet pipe.
The process for producing and processing the soil conditioner by taking the fly ash as the raw material comprises a shell, wherein two ends of the shell are fixedly connected with bearings, a rotating drum is movably arranged in the two bearings in a penetrating manner, the axis of the rotating drum is parallel to the long edge of the shell, spiral blades are arranged on the surface of the rotating drum, stirring blades are arranged on the inner wall of the rotating drum, a belt pulley is arranged at one end of the surface of the rotating drum, a second motor is arranged at the bottom of the shell, another belt pulley is arranged on the surface of an output shaft of the second motor, a belt is connected with the surfaces of the two belt pulleys in a transmission manner, the second motor is connected with the rotating drum in a transmission manner through the belt, an air inlet hopper is arranged at one end of the top of the shell, an air suction pipe is communicated with the top of an air inlet, a temperature sensor is arranged on the side wall of the air suction pipe, and the detection end of the temperature sensor is inserted into the air suction pipe, the side wall of the exhaust pipe is communicated with an air blower, the other end of the top of the shell is communicated with an air exhaust and dust removal assembly, the top of the shell is provided with a controller, the controller is electrically connected with a temperature sensor, the air exhaust and dust removal assembly and the air blower through leads, the bottom of the shell is provided with a jacket heat exchanger, one end of the jacket heat exchanger is communicated with a second liquid inlet pipe, the middle of the second liquid inlet pipe is provided with a circulating pump, the other end of the jacket heat exchanger is communicated with a second liquid outlet pipe, the second liquid inlet pipe is in fluid communication with the first liquid outlet pipe, the second liquid outlet pipe is in fluid communication with the first liquid inlet pipe, and the air inlet hopper is communicated with the top of the roasting furnace through the exhaust pipe.
According to the process for producing and processing the soil conditioner by taking the fly ash as the raw material, the drying device is integrally and obliquely arranged, the side surface of the higher end of the shell is fixedly connected with the dry material feeding hopper through the support frame, the discharge hole of the dry material feeding hopper is inserted into the rotary drum, the bottom of the higher end of the shell is communicated with the discharge hopper, and the top of the lower end of the shell is communicated with the wet material feeding hopper; and four corners of the bottom of the shell are provided with supporting legs.
The technical scheme of the invention achieves the following beneficial technical effects:
1. according to the invention, by arranging the mixing device, the mixing device mixes powder through wind power, different powder is blown into the air pipe through the feeding fan and the feeding pipe, the powder is blown to move forward and be mixed under the action of the wind power, when the air flow carrying the powder passes through the screen plate assembly, the air blowing pipe of the air flow screen plate assembly disturbs the air flow, the air flow speed is changed, turbulence is generated behind the screen plate assembly, the turbulence stirs the powder to realize mixing, when the air flow passes through the adjusting assembly, the adjusting plate can rotate around the rotating shaft and change the angle through adjustment, when the air flow blows to the adjusting plates with different angles, different turbulence effects are generated, the air flow generates different turbulence, thus different mixing effects are achieved, the mixed powder is uniform and rapid, and continuous mixing can be realized; and the otter board subassembly is after using for a long time, can strike off the adnexed powder on gas blow pipe surface through scraping the cover to insert the gas blow pipe through external compressed air, blow out compressed air through the gas pocket, blow the ash, realize the clearance.
2. According to the invention, the heat exchange tube is arranged on the side wall of the roasting furnace and is matched with the jacket heat exchanger of the drying device, so that the circulating flow of liquid in the heat exchange tube and the jacket heat exchanger can be realized through the circulating pump and the pipeline, and the waste heat after roasting of the roasting furnace is utilized to heat the end of the jacket heat exchanger and release heat to heat wet materials; the exhaust pipe and the exhaust fan are arranged at the top of the roasting furnace, so that high-temperature waste gas generated by roasting of the roasting furnace or residual hot gas after roasting can be extracted and input into the drying device, the temperature sensor is arranged at the gas outlet end of the exhaust pipe, the temperature of the gas entering the drying device can be detected, and when the temperature is too high, the air blower can be controlled by the controller to work, so that external cold air is blown into the exhaust pipe and mixed with the high-temperature waste gas of the roasting furnace, and the gas temperature is reduced; through setting up above-mentioned part, can utilize the waste heat after the use of burning furnace, the high temperature waste gas that produces during the calcination, reduce the required energy of wet material of stoving to reach the purpose of energy saving.
3. According to the invention, the drying device is arranged, the roasted powder can be filled into the dry material feed hopper, the roasted powder has higher temperature, the powder filled into the dry material feed hopper enters the rotary drum, meanwhile, the rotary drum is driven to rotate by the second motor, the drying device is obliquely arranged, the roasted powder is continuously stirred by the continuous rotation of the rotary drum, the stirring sheet can enhance the stirring effect, the powder contacts the rotary drum and heats the rotary drum by utilizing the waste heat after the roasting of the powder, meanwhile, the powder washed by the washing and pressure filtering device is placed into the wet material feed hopper, the wet material is stirred and pushed upwards by the spiral blade outside the rotary drum, at the moment, the inside of the rotary drum is heated by the high-temperature powder, the bottom of the shell of the drying device is heated by the jacket heat exchanger, the high-temperature waste gas blown by the exhaust pipe can be utilized, meanwhile, the wet material is heated and dried, the drying effect is good, and energy can be saved, and the cooling of the high-temperature powder can be accelerated while the wet material is dried.
Drawings
FIG. 1 is a schematic cross-sectional view of a mixing device according to the present invention;
FIG. 2 is an enlarged schematic view taken at A of FIG. 1 of the present invention;
FIG. 3 is a schematic view of a set of well plates according to the present invention;
FIG. 4 is a schematic view of the structure of the adjustment assembly of the present invention;
FIG. 5 is a schematic view of the structure of the washing and pressure-filtering apparatus of the present invention;
FIG. 6 is a schematic view of the structure of a roasting furnace according to the present invention;
FIG. 7 is a schematic view of the drying apparatus according to the present invention;
in the figures, the reference numbers are given by: 1-a mixing device; 2-air pipe; 3-feeding pipe; 4-a blower; 5-a screen assembly; 6-a regulating component; 7-a feeding fan; 8-a storage bin; 9-a cyclone separator; 10-a grinder; 11-a barrel body; 12-a scaffold; 13-a worm; 14-a gear ring; 15-support bearings; 16-fan blades; 17-an inner shaft; 18-gear wheel; 19-a rotating shaft; 20-adjusting plate; 21-a first motor; 22-a fixed cylinder; 23-an air blowing pipe; 24-pores; 25-an elastic connecting rod; 26-scraping sleeve; 27-a push rod; 28-roasting furnace; 29-heat exchange tube; 30-a first liquid outlet pipe; 31-a first liquid inlet pipe; 32-an extraction tube; 33-an exhaust fan; 34-a drying device; 35-a housing; 36-a bearing; 37-a rotating drum; 38-helical blades; 39-stirring sheet; 40-a belt pulley; 41-a second motor; 42-a leg; 43-jacketed heat exchangers; 44-a second liquid outlet pipe; 45-a second liquid inlet pipe; 46-a discharge hopper; 47-circulation pump; 48-an air inlet hopper; 49-temperature sensor; 50-a blower; 51-a controller; 52-an air extraction dust removal assembly; 53-wet feed hopper; 54-dry feed hopper; 55-washing the filter-pressing device.
Detailed Description
The process for producing and processing the soil conditioner by taking the fly ash as a raw material comprises the following steps:
step A: mixing the fly ash and the solid alkali powder by using a mixing device 1, and uniformly mixing the fly ash and the solid alkali powder, wherein the mass ratio of the fly ash to the solid alkali powder is 1: 1 to 1: 5, inputting the mixed fly ash and solid alkali powder into a cyclone separator 9 for gas-solid separation;
and B: grinding the mixed fly ash and solid alkali powder by using a grinder 10 to refine the powder;
and C: roasting the ground fly ash and solid alkali powder by using a roasting furnace 28 to obtain fly ash clinker;
step D: washing the calcined fly ash by using a washing and filter-pressing device 55, and performing filter pressing;
step E: utilize drying device 34 to dry the powder after the filter-pressing to solid and the biomass charcoal after will drying mix, the mass ratio of solid and biomass charcoal after the stoving is 1: 1.
as shown in fig. 1, the mixing device 1 includes an air pipe 2, a first end of the air pipe 2 is communicated with a blower 4, a side wall of the air pipe 2 is communicated with a feed pipe 3, the feed pipe 3 is inserted into the air pipe 2, the other end of the air pipe 2 is communicated with a feed fan 7, a feed port of the feed fan 7 is communicated with a storage bin 8, a screen plate assembly 5 is arranged in the middle of the air pipe 2, an adjusting assembly 6 is arranged behind the screen plate assembly 5, by arranging the mixing device 1, the mixing device 1 mixes powder by wind power, different powders are blown into the air pipe 2 through the feed fan 7 and the feed pipe 3, the powder is blown to advance and mix under the action of the wind power, when the air flow carrying the powder passes through the screen plate assembly 5, an air blowing pipe 23 of the air screen plate assembly 5 disturbs the air flow, and the air flow rate changes, turbulence is generated behind the screen plate assembly 5, powder is stirred by the turbulence to realize mixing, when air flow passes through the adjusting assembly 6, the adjusting plate 20 can be adjusted to enable the adjusting plate 20 to rotate around the rotating shaft 19 and change the angle, when the air flow blows to the adjusting plate 20 with different angles, different turbulence effects are generated, so that different mixing effects are achieved, the mixed powder is uniform and rapid, and continuous mixing can be realized, as shown in fig. 3, the screen plate assembly 5 comprises a fixed cylinder 22, a plurality of air blowing pipes 23 are vertically arranged at the top and the bottom of the inner wall of the fixed cylinder 22, a plurality of air holes 24 are formed in the side wall of each air blowing pipe 23 along the circumferential direction, the plurality of air blowing pipes 23 are communicated with each other, scraping sleeves 26 are sleeved on the surfaces of the air blowing pipes 23, elastic connecting rods 25 are fixedly connected to the side walls of the scraping sleeves 26, and the scraping sleeves 26 are connected through the elastic connecting rods 25, a push rod 27 is arranged at the top of the middle scraping sleeve 26, after the screen plate assembly 5 is used for a long time, powder attached to the surface of the air blowing pipe 23 can be scraped through the scraping sleeve 26, external compressed air is connected into the air blowing pipe 23, the compressed air is blown out through the air holes 24 to blow ash, and cleaning is achieved, and the top end of the push rod 27 penetrates out of the air pipe 2; the side wall of the fixed cylinder 22 is fixedly connected with the inner wall of the air pipe 2, as shown in fig. 4, the adjusting assembly 6 includes a cylinder 11, the side wall of the cylinder 11 is provided with a rolling bearing, an inner shaft 17 coaxial with the cylinder 11 is arranged in the cylinder 11, the side surface of the inner shaft 17 is movably connected with a rotating shaft 19 along the diameter direction thereof, the other end of the rotating shaft 19 penetrates through the side wall of the cylinder 11 and movably penetrates through the rolling bearing, the end part of the rotating shaft 19 is connected with a gear 18 in a transmission manner, the top of the cylinder 11 is fixedly connected with a bracket 12, the side surface of the bracket 12 is movably connected with a worm 13, the surface of the cylinder 11 is provided with a supporting bearing 15 coaxial with the rotating shaft, the surface of the supporting bearing 15 is sleeved with a gear ring 14, the side wall of the gear ring 14 is provided with end face teeth meshed with the gear 18, and the surface of the gear ring 14 is provided with worm teeth meshed with the worm 13, the rear end of the inner shaft 17 is fixedly connected with the inner wall of the barrel 11 through a support rod, the front end of the inner shaft 17 is provided with a first motor 21, and the surface of an output shaft of the first motor 21 is fixedly connected with fan blades 16; the front end of the inner cylinder is fixedly connected with the tail end of the air pipe 2, the tail end of the inner cylinder is communicated with a feed inlet of a cyclone separator 9, a discharge outlet of the cyclone separator 9 is communicated with a feed inlet of a grinding machine 10, and ground powder is transferred into a roasting furnace 28 through a transfer device.
As shown in fig. 6, the roasting furnace 28 includes a roasting furnace body, an air exhaust pipe 32 is communicated with the top of the roasting furnace body, an exhaust fan 33 is arranged in the middle of the air exhaust pipe 32, a heat exchange pipe 29 is arranged in the side wall of the roasting furnace body, the upper part of the heat exchange pipe 29 is communicated with a first liquid outlet pipe 30, the lower part of the heat exchange pipe is communicated with a first liquid inlet pipe 31, the heat exchange pipe 29 is arranged on the side wall of the roasting furnace 28 and is matched with a jacket heat exchanger 43 of the drying device 34, liquid circulation flow in the heat exchange pipe 29 and the jacket heat exchanger 43 can be realized through a circulation pump 47 and a pipeline, so that the temperature of the end of the jacket heat exchanger 43 is raised by using the residual heat after roasting of the roasting furnace 28, heat is released, and wet materials are heated; as shown in fig. 7, the drying device 34 includes a housing 35, bearings 36 are fixedly connected to both ends of the housing 35, a drum 37 is movably inserted into the two bearings 36, an axis of the drum 37 is parallel to a long side of the housing 35, a helical blade 38 is disposed on a surface of the drum 37, a stirring blade 39 is disposed on an inner wall of the drum 37, a belt pulley 40 is disposed at one end of a surface of the drum 37, a second motor 41 is disposed at a bottom of the housing 35, another belt pulley 40 is disposed on an output shaft surface of the second motor 41, a belt is drivingly connected to surfaces of the two belt pulleys 40, the second motor 41 is drivingly connected to the drum 37 through the belt, an air inlet hopper 48 is disposed at one end of a top of the housing 35, the top of the air inlet is communicated with an air exhaust pipe 32, a temperature sensor 49 is disposed on a side wall of the air exhaust pipe 32, the detection end of the temperature sensor 49 is inserted into the exhaust pipe 32, the side wall of the exhaust pipe 32 is communicated with a blower 50, the other end of the top of the casing 35 is communicated with an air-extracting and dust-removing component 52, the top of the casing 35 is provided with a controller 51, the controller 51 is electrically connected with the temperature sensor 49, the air-extracting and dust-removing component 52 and the blower 50 through wires, the exhaust pipe 32 and the exhaust fan 33 are arranged at the top of the roasting furnace 28, high-temperature waste gas generated by roasting of the roasting furnace 28 can be extracted and input into the drying device 34, the gas outlet end of the exhaust pipe 32 is provided with the temperature sensor 49, the temperature of gas entering the drying device 34 can be detected, when the temperature is too high, the controller 51 can control the blower 50 to work, outside cold air is blown into the exhaust pipe 32 and mixed with the high-temperature waste gas of the roasting furnace 28, so as to reduce the temperature of the gas, the bottom of the shell 35 is provided with a jacket heat exchanger 43, one end of the jacket heat exchanger 43 is communicated with a second liquid inlet pipe 45, the middle part of the second liquid inlet pipe 45 is provided with a circulating pump 47, the other end of the jacket heat exchanger 43 is communicated with a second liquid outlet pipe 44, the second liquid inlet pipe 45 is communicated with a first liquid outlet pipe 30, the second liquid outlet pipe 44 is communicated with a first liquid inlet pipe 31, and the air inlet hopper 48 is communicated with the top of the roasting furnace 28 through an air exhaust pipe 32; the drying device 34 is integrally and obliquely arranged, a side surface of a higher end of the shell 35 is fixedly connected with a dry material feed hopper 54 through a support frame, a discharge port of the dry material feed hopper 54 is inserted into the rotary drum 37, the bottom of the higher end of the shell 35 is communicated with a discharge hopper 46, and the top of a lower end of the shell 35 is communicated with a wet material feed hopper 53; the four corners of the bottom of the shell 35 are provided with supporting legs 42, the baked powder can be loaded into the dry material feed hopper 54 by arranging the drying device 34, the baked powder has higher temperature, the powder loaded into the dry material feed hopper 54 enters the rotary drum 37, meanwhile, the rotary drum 37 is driven to rotate by the second motor 41, the drying device 34 is obliquely arranged, the baked powder is continuously stirred by the rotary drum 37, the stirring sheet 39 can enhance the stirring effect, the powder contacts the rotary drum 37 and heats the rotary drum 37 by using the waste heat after the baking of the powder, meanwhile, the powder washed by the washing and pressure filtering device 55 is placed into the wet material feed hopper 53, the wet material is stirred by the helical blades 38 outside the rotary drum 37 and is pushed upwards, at the moment, the inside of the rotary drum 37 is heated by the high-temperature powder, the bottom of the shell 35 of the drying device 34 is heated by the jacket heat exchanger 43, the high-temperature waste gas that usable exhaust tube 32 insufflates heats simultaneously wet material and dries, and it is effectual to dry to can the energy saving, and when drying wet material, can accelerate the cooling of high temperature powder.
The working process is as follows: when the powder mixing machine is used, the fly ash and the solid alkali powder are respectively added into different storage bins 8, the air blower 4 is started to generate high-speed airflow in the air pipe 2, the feeding fan 7 is started to respectively blow the fly ash and the solid alkali powder in the different storage bins 8 into the air pipe 2, the airflow generated by the air blower 4 blows the powder to move forward, when the fly ash and the solid alkali powder pass through the screen plate assembly 5, the airflow generates turbulence, the turbulence stirs the powder and mixes the powder, when the airflow passes through the adjusting assembly 6, the fan blade 16 is firstly blown, after the fan blade 16 rotates, air is stirred to mix the powder, the first motor 21 can be started as required, after the first motor 21 rotates, the fan blade 16 is driven to rotate at an accelerated speed, the effect of stirring the air is improved, the powder mixing is further promoted, the angle of the adjusting plate 20 can be adjusted, so that the airflow generates different turbulence effects and different mixing effects are achieved, when the adjusting component 6 is adjusted, the worm 13 is rotated, the worm 13 is meshed with worm gear teeth on the surface of the gear ring 14, so as to drive the gear ring 14 to rotate, while the gear ring 14 rotates, teeth on the side surface of the gear ring drive the gear 18 meshed with the gear ring to rotate, so as to drive the rotating shaft 19 to drive the adjusting plate 20 to rotate, so as to achieve the purpose of adjusting the angle of the adjusting plate 20, gas-solid separation is performed on mixed powder through the cyclone separator 9, the powder is ground after being separated, enters the grinding machine 10 to be ground, is ground and enters the roasting furnace 28 to be roasted, is washed and filtered through the washing and pressure filtering device 55, and is dried through the drying device 34, when continuous production is performed, the washed and filtered wet material is added into the wet material feeding hopper 53, the roasted high-fraction powder is added into the dry material feeding hopper 54, and the wet material is dried by using high-temperature tail gas and waste heat of the roasting furnace 28, and after drying, adding the biomass charcoal and stirring.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications are possible which remain within the scope of the appended claims.
Claims (7)
1. The process for producing and processing the soil conditioner by taking the fly ash as a raw material is characterized by comprising the following steps of:
step A: mixing the fly ash and the solid alkali powder by using a mixing device (1), and uniformly mixing the fly ash and the solid alkali powder, wherein the mass ratio of the fly ash to the solid alkali powder is 1: 1 to 1: 5, inputting the mixed fly ash and solid alkali powder into a cyclone separator (9) for gas-solid separation;
and B: grinding the mixed fly ash and solid alkali powder by using a grinder (10) to refine the powder;
step C: roasting the ground fly ash and solid alkali powder by using a roasting furnace (28) to obtain fly ash clinker;
step D: washing the calcined fly ash by using a washing and filter-pressing device (55), and carrying out filter pressing;
step E: the powder after the filter pressing is dried by utilizing a drying device (34), and the dried solid is mixed with the biomass charcoal, wherein the mass ratio of the dried solid to the biomass charcoal is 1: 1.
2. the process for producing and processing soil conditioner by using fly ash as raw material according to claim 1, wherein the mixing device (1) comprises an air pipe (2), the first end of the air pipe (2) is communicated with a blower (4), the side wall of the air pipe (2) is communicated with an inlet pipe (3), the inlet pipe (3) is inserted into the air pipe (2), the other end of the air pipe (2) is communicated with a feeding fan (7), the feed inlet of the feeding fan (7) is communicated with a storage bin (8), the middle part of the air pipe (2) is provided with a screen plate component (5), and the rear part of the screen plate component (5) is provided with an adjusting component (6).
3. The process for producing and processing the soil conditioner by taking the fly ash as the raw material according to claim 2, wherein the screen plate assembly (5) comprises a fixed cylinder (22), the top and the bottom of the inner wall of the fixed cylinder (22) are vertically provided with a plurality of air blowing pipes (23), the side wall of each air blowing pipe (23) is circumferentially provided with a plurality of air holes (24), the plurality of air blowing pipes (23) are communicated with each other, the surface of each air blowing pipe (23) is sleeved with a scraping sleeve (26), the side wall of each scraping sleeve (26) is fixedly connected with an elastic connecting rod (25), the plurality of scraping sleeves (26) are connected through the elastic connecting rods (25), the top of the middle scraping sleeve (26) is provided with a push rod (27), and the top end of the push rod (27) penetrates out of the screen (2); the side wall of the fixed cylinder (22) is fixedly connected with the inner wall of the air pipe (2).
4. The process for producing and processing the soil conditioner by taking the fly ash as the raw material according to claim 2, wherein the adjusting component (6) comprises a cylinder body (11), a rolling bearing is arranged on the side wall of the cylinder body (11), an inner shaft (17) coaxial with the cylinder body (11) is arranged in the cylinder body (11), a rotating shaft (19) is movably connected to the side surface of the inner shaft (17) along the diameter direction of the inner shaft, the other end of the rotating shaft (19) penetrates through the side wall of the cylinder body (11) and is movably arranged in the rolling bearing in a penetrating manner, a gear (18) is connected to the end part of the rotating shaft (19) in a transmission manner, a bracket (12) is fixedly connected to the top of the cylinder body (11), a worm (13) is movably connected to the side surface of the bracket (12), a supporting bearing (15) coaxial with the cylinder body is arranged on the surface of the cylinder body (11), and a gear ring (14) is sleeved on the surface of the supporting bearing (15), the side wall of the gear ring (14) is provided with end face teeth meshed with the gear (18), the surface of the gear ring (14) is provided with worm gear teeth meshed with the worm (13), the rear end of the inner shaft (17) is fixedly connected with the inner wall of the barrel body (11) through a support rod, the front end of the inner shaft (17) is provided with a first motor (21), and the surface of an output shaft of the first motor (21) is fixedly connected with fan blades (16); the front end of the inner barrel is fixedly connected with the tail end of the air pipe (2), the tail end of the inner barrel is communicated with a feed inlet of a cyclone separator (9), a discharge outlet of the cyclone separator (9) is communicated with a feed inlet of a grinding machine (10), and ground powder is transferred into a roasting furnace (28) through a transfer device.
5. The process for producing and processing soil conditioner by using fly ash as raw material according to claim 4, wherein the roasting furnace (28) comprises a roasting furnace body, the top of the roasting furnace body is communicated with an air exhaust pipe (32), the middle part of the air exhaust pipe (32) is provided with an exhaust fan (33), the side wall of the roasting furnace body is provided with a heat exchange pipe (29), the upper part of the heat exchange pipe (29) is communicated with a first liquid outlet pipe (30), and the lower part of the heat exchange pipe is communicated with a first liquid inlet pipe (31).
6. The process for producing and processing soil conditioner by using fly ash as raw material according to claim 5, wherein the drying device (34) comprises a housing (35), bearings (36) are fixedly connected to both ends of the housing (35), a rotating drum (37) is movably arranged in the two bearings (36) in a penetrating manner, the axis of the rotating drum (37) is parallel to the long side of the housing (35), a helical blade (38) is arranged on the surface of the rotating drum (37), a stirring sheet (39) is arranged on the inner wall of the rotating drum (37), a belt pulley (40) is arranged at one end of the surface of the rotating drum (37), a second motor (41) is arranged at the bottom of the housing (35), another belt pulley (40) is arranged on the surface of an output shaft of the second motor (41), a belt is connected to the surfaces of the two belt pulleys (40), and the second motor (41) is in transmission connection with the rotating drum (37) through the belt, an air inlet hopper (48) is arranged at one end of the top of the shell (35), the top of the air inlet is communicated with an air suction pipe (32), a temperature sensor (49) is arranged on the side wall of the air suction pipe (32), the detection end of the temperature sensor (49) is inserted into the air suction pipe (32), the side wall of the air suction pipe (32) is communicated with an air blower (50), the other end of the top of the shell (35) is communicated with an air suction and dust removal component (52), a controller (51) is arranged at the top of the shell (35), the controller (51) is electrically connected with the temperature sensor (49), the air suction and dust removal component (52) and the air blower (50) through wires, a jacket heat exchanger (43) is arranged at the bottom of the shell (35), one end of the jacket heat exchanger (43) is communicated with a second liquid inlet pipe (45), and a circulating pump (47) is arranged in the middle of the second liquid inlet pipe (45), the other end of the jacket heat exchanger (43) is communicated with a second liquid outlet pipe (44), the second liquid inlet pipe (45) is in fluid communication with the first liquid outlet pipe (30), the second liquid outlet pipe (44) is in fluid communication with the first liquid inlet pipe (31), and the air inlet hopper (48) is communicated with the top of the roasting furnace (28) through the air exhaust pipe (32).
7. The process for producing and processing soil conditioner by using fly ash as raw material according to claim 6, wherein the drying device (34) is integrally and obliquely arranged, the side surface of the higher end of the shell (35) is fixedly connected with a dry material feed hopper (54) through a support frame, the discharge port of the dry material feed hopper (54) is inserted into the rotary drum (37), the bottom of the higher end of the shell (35) is communicated with a discharge hopper (46), and the top of the lower end of the shell (35) is communicated with a wet material feed hopper (53); and four corners of the bottom of the shell (35) are provided with supporting legs (42).
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