CN212262840U - Series-connection type desulfurizing tower - Google Patents
Series-connection type desulfurizing tower Download PDFInfo
- Publication number
- CN212262840U CN212262840U CN202021261474.9U CN202021261474U CN212262840U CN 212262840 U CN212262840 U CN 212262840U CN 202021261474 U CN202021261474 U CN 202021261474U CN 212262840 U CN212262840 U CN 212262840U
- Authority
- CN
- China
- Prior art keywords
- tower
- pipeline
- desulfurization
- kiln body
- blank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a tandem type desulfurizing tower, the problem of solution is that the desulfurization efficiency of traditional dry process desulfurization technique is low, and reaction rate is slower, equipment is huge, and produces sulfate aerosol easily, leads to the secondary pollution of air. The utility model comprises a closed kiln body, wherein an upper communication pipeline is arranged in the society at the top of the closed kiln body, a lower communication pipeline is arranged at the bottom of the closed kiln body, the inside of the closed kiln body is divided into a plurality of tower chamber units, blank stacks are arranged in the tower chamber units, and the blank stacks are wet blank stacks of honeycomb insulating bricks; and the upper communicating pipeline and the lower communicating pipeline are respectively provided with a plurality of pipeline shutoff valves. The dry desulfurization method provided by the utility model has the advantages of less water consumption, no desulfurization waste water, no sulfate aerosol and no secondary pollution. And the adopted desulfurizing tower does not need a liquid mobile phase, is not easy to block, and has stable and reliable operation and low maintenance cost.
Description
Technical Field
The utility model relates to a desulfurization field, concretely relates to tandem type desulfurizing tower.
Background
The sulfur-containing waste gas mainly comes from thermal power plants, steel plants, metal smelting plants, chemical plants, cement plants, industrial and civil boilers and the like, and the sulfur-containing compounds comprise hydrogen sulfide, sulfur dioxide, sulfur trioxide, sulfuric acid, sulfite, sulfate and organic sulfur aerosol. With SO2Mainly, the sulfur-containing waste gas discharged without treatment has large smell, seriously pollutes the environment and influences the human health.
Through the analysis and research on the domestic and foreign desulfurization technology and the condition of introducing desulfurization process pilot plant in the domestic power industry, the existing desulfurization method can be generally divided into 3 types of desulfurization before combustion, desulfurization during combustion, desulfurization after combustion and the like.
In the desulfurization, desulfurization after combustion, also called Flue Gas Desulfurization (FGD), is divided into five methods according to the type of the desulfurizing agent: calcium method based on CaCO3 (limestone), magnesium method based on MgO, Na method2SO3Sodium process based on NH3The basic ammonia process, the organic base process based on organic base. The widely used commercial technology in the world is the calcium method, and the proportion is more than 90%.
The desulfurization techniques can be further classified into wet, dry and semi-dry (semi-wet) methods according to the dry and wet states of the absorbent and the desulfurization product during desulfurization. The wet FGD technology is to desulfurize and treat the desulfurization product by using solution or slurry containing absorbent in a wet state, and the method has the advantages of high desulfurization reaction speed, simple equipment, high desulfurization efficiency and the like, but generally has the problems of serious corrosion, high operation and maintenance cost, easy secondary pollution and the like.
The traditional dry desulfurization technology has the disadvantages of low desulfurization efficiency, slow reaction speed, huge equipment and easy generation of sulfate aerosol, and causes secondary pollution to air.
Industrial waste residue refers to toxic, flammable, corrosive, disease-contaming, chemically reactive and other hazardous solid waste discharged in industrial processes; fly ash is one of common industrial waste residues, is fine ash captured from flue gas generated after coal combustion, and is a main solid waste discharged from a coal-fired power plant. The main oxide composition of the fly ash of the thermal power plant in China is as follows: SiO 22、Al2O3、FeO、Fe2O3、CaO、TiO2And the like. Along with the development of the power industry, the discharge amount of fly ash of coal-fired power plants is increased year by year, and the fly ash becomes one of industrial waste residues with larger discharge amount in China. A large amount of industrial waste residues such as fly ash can generate dust without being treated, thereby polluting the atmosphere; if discharged into a water system, the river can be silted, and toxic chemicals in the river can cause harm to human bodies and organisms.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that the desulfurization efficiency of traditional dry desulfurization technique is low, and reaction rate is slower, equipment is huge, and produces the sulfate aerosol easily, leads to the secondary pollution of air, provides a water consumption and is few, does not produce desulfurization waste water, and does not produce the sulfate aerosol, can not lead to secondary pollution's tandem type desulfurizing tower.
In order to solve the technical problem, the utility model adopts the following technical scheme: a series-connection type desulfurizing tower comprises a closed kiln body, wherein an upper communicating pipeline is arranged in the society at the top of the closed kiln body, a lower communicating pipeline is arranged at the bottom of the closed kiln body, the inside of the closed kiln body is divided into a plurality of tower chamber units, blank stacks are arranged in the tower chamber units, and the blank stacks are wet blank stacks of honeycomb insulating bricks; the upper communicating pipeline and the lower communicating pipeline are respectively provided with a plurality of pipeline shutoff valves;
the left end of the upper communicating pipeline is provided with a smoke main inlet, and the right end of the lower communicating pipeline is provided with a smoke main outlet.
The adjacent tower room units are separated by partition walls, and pipeline shutoff valves are correspondingly arranged above and below each partition wall.
And the upper part and the lower part of the tower chamber unit are respectively provided with a tower chamber unit isolating valve, and the tower chamber unit is communicated with the upper communicating pipeline and the lower communicating pipeline through the tower chamber unit isolating valves. The utility model discloses during the use, adjust opening and shutting of pipeline stop valve and tower room unit isolation valve, and then guarantee the flue gas opposite direction between the adjacent tower room unit, as shown in fig. 1, for establishing ties between each tower room unit and linking to flue gas entry and exhanst gas outlet at every tower room unit detect sulfur dioxide content, treat that the flue gas entrance sulfur dioxide concentration and the exhanst gas outlet sulfur dioxide concentration difference value of the tower room unit of desulfurizing tower are no longer than 10mg/Nm3In the process, the blank stack in the tower cell unit is taken out and replaced by a new blank stack. And stacking the wet honeycomb insulating brick blank containing hydrated lime in a tower chamber unit, so that the green body pore channel direction of the wet honeycomb insulating brick blank is parallel to the airflow direction. After the flue gas containing sulfur dioxide is introduced into the kiln body unit, the flue gas passes through the air holes of the wet honeycomb insulating brick blank, and the sulfur dioxide in the flue gas is absorbed by the hydrated lime in the wet honeycomb insulating brick blank, so that the aim of removing the sulfur dioxide is fulfilled.
A dry desulfurization method of a series-connection type desulfurization tower comprises the following steps: (1) preparing a wet blank of the honeycomb insulating brick;
(2) stacking the wet honeycomb insulating brick blanks prepared in the step (1) on air-permeable object placing plates, stacking the air-permeable object placing plates fully filled with the wet honeycomb insulating brick blanks to form a blank stack, placing the blank stack into each tower chamber unit of a desulfurizing tower in a serial connection manner, wherein the difference value between the sulfur dioxide concentration at an inlet and the sulfur dioxide concentration at an outlet of a sulfur-containing flue gas inlet of the tower chamber unit of the desulfurizing tower is not more than 10mg/Nm3In the process, the blank stack in the tower cell unit is taken out and replaced by a new blank stack. The breathable storage plate is an air leakage grating plate.
(3) SO at the total outlet of the flue gas on the lower communicating pipeline2Concentration greater than industry standardWhen the temperature is 2/3, the blank stack with the smallest difference between the sulfur dioxide concentration at the sulfur-containing flue gas inlet and the sulfur dioxide concentration at the sulfur-containing flue gas outlet of the tower chamber unit is taken out, and the new bee blank stack is replaced. And (4) placing the blank stack taken out from the tower chamber unit in a natural condition for further air drying to form the dry honeycomb insulating brick. Industry standard refer to the national standard or local standard that each place needs to carry out according to actual conditions, SO according to industry standard regulation2The concentration discharge requirement can be increased or decreased by the number of tower chamber units.
The wet blank of the honeycomb insulating brick in the step (1) is prepared from the following raw materials: the main materials are hydrated lime and fly ash, the auxiliary materials are talcum powder, dextrin, molasses, waste oil and water, and the weight ratio of the hydrated lime to the fly ash is 0.47: 2.3, the dosage of the talcum powder is 1-9% of the dry weight of the hydrated lime and the dry weight of the fly ash, the dosage of the dextrin is 14-29% of the dry weight of the hydrated lime and the dry weight of the fly ash, and the addition amounts of the honey, the waste oil and the water are 0.5-3%, 1-4% and 10-23% of the total weight of the hydrated lime, the fly ash, the talcum powder and the dextrin respectively. The weight ratio of the hydrated lime to the fly ash is the weight ratio of the dry weight of the hydrated lime to the dry weight of the fly ash. The utility model discloses slaked lime, fly ash, talcum powder and dextrin are the crushing material, require 100 meshes screen cloth percent of pass to be 100%.
The preparation method of the wet blank of the honeycomb insulating brick in the step (1) comprises the following steps: a. mixing slaked lime, fly ash, talcum powder, dextrin, molasses, waste oil and water according to the weight ratio to prepare a mixed paste material;
b. extruding and molding the mixed paste prepared in the step (a) in a honeycomb material extruder to prepare a wet blank of the honeycomb insulating brick; the internal structure and the appearance of the wet blank of the insulating brick are controlled by the design of the die according to the requirement.
c. And (b) during extrusion molding of the mixed paste, placing an air-permeable object placing plate at a discharge port of an extruder, placing an extruded wet blank of the honeycomb insulating brick on the air-permeable object placing plate by an automatic stacker crane, removing the air-permeable object placing plate after one air-permeable object placing plate is full, and simultaneously placing another air-permeable object placing plate to collect the wet blank of the honeycomb insulating brick.
The utility model discloses this honeycomb brick of honeycomb insulating brick of preparation has high mechanical strength simultaneously, heat preservation and sound insulation performance. High energy consumption procedures such as firing, fumigating and the like are not needed in the production process, and the energy-saving and environment-friendly effects are achieved. The prepared building material is necessary for people, air pollution is treated, and industrial waste residue can be treated. And the industrial waste residue is used as the raw material, so that the production cost is low.
The wall thickness of an inner hole pore canal of the honeycomb insulating brick is 0.5-3.5mm, and the aperture of the inner hole is 1.5-10 mm; the ratio of the pore diameter of the inner hole of the pore canal to the wall thickness of the pore canal of the inner hole is more than 2.7.
The size of the desulfurizing tower is calculated according to the flow of the flue gas to be treated: the total area of the inner holes of the honeycomb insulating bricks which are arranged in the direction vertical to the flow direction of the flue gas is Sm2The smoke flow N is X Nm3And S is required to be more than or equal to 0.3m/S and less than or equal to 4.5 m/S.
The number of the tower chamber units in the desulfurizing tower is calculated according to the desulfurizing amount: assuming the total desulfurization amount is A ton, each kiln of the desulfurizing tower can be loaded with Ca (OH)2The weight is B tons, the number of the desulfurizing tower chambers is C, and B multiplied by C/A is required to be more than or equal to 30. In order to fully ensure the desulfurization effect of the desulfurizing tower, the utility model discloses Ca (OH)2The better desulfurization effect can be achieved only by keeping a sufficient excess state all the time.
The utility model discloses prepare honeycomb insulating brick when carrying out the desulfurization to containing sulphur flue gas in the desulfurizing tower, its principle is the wet blank stack of honeycomb insulating brick that will contain hydrated lime and fly ash in every tower room unit of tandem type desulfurizing tower, makes the flue gas that contains sulfur dioxide, carbon dioxide let in the tower room unit of this desulfurizing tower. When sulfur-containing flue gas passes through the pores of the wet honeycomb insulating brick blank, sulfur dioxide and carbon dioxide in the flue gas are absorbed by slaked lime in the wet honeycomb insulating brick blank to form calcium sulfate and calcium carbonate, and the following reactions occur:
2Ca(OH)2+2SO2+O2＝2CaSO4+2H2O
Ca(OH)2+CO2＝CaCO3+2H2O
only enough tower chamber units are connected in series in the desulfurization tower, and the total amount of unreacted hydrated lime is enough, so that the concentration of sulfur dioxide in the flue gas discharged from the desulfurization tower can be low enough, even can be completely absorbed. Calcium sulfate and calcium carbonate formed in the honeycomb insulating brick after absorption are used as cementing agents, and fly ash is used as a filler, so that the honeycomb insulating brick with high enough mechanical strength is produced. When the honeycomb insulating brick is built, the two ends of the honeycomb insulating brick are filled with cement mortar, so that the pore channels form closed pore channels. The honeycomb brick has the functions of heat preservation and sound insulation due to the closed pore channel structure.
The dry desulfurization method provided by the utility model has the advantages of less water consumption, no desulfurization waste water, no sulfate aerosol and no secondary pollution. And the adopted desulfurizing tower does not need a liquid mobile phase, is not easy to block, and has stable and reliable operation and low maintenance cost.
The number of the tower chamber units connected in series can be increased properly, so that the exhaust emission reaches the national environmental protection standard, and the original desulfurization device does not need to be abandoned and the investment is saved.
The honeycomb insulating brick is produced at ultralow cost while the dry desulfurization is carried out, the three wastes generated by industrial enterprises are fully utilized, and the full utilization of resources is realized.
Drawings
FIG. 1 is a schematic view of the structure of the series-type desulfurizing tower of the present invention.
Detailed Description
In the following, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
Example 1
A series-connection type desulfurizing tower comprises a closed kiln body 1, wherein an upper communication pipeline 4 is arranged in the society at the top of the closed kiln body 1, a lower communication pipeline 5 is arranged at the bottom of the closed kiln body 1, the inside of the closed kiln body 1 is divided into a plurality of tower chamber units 2, a blank stack 3 is arranged in each tower chamber unit 2, and each blank stack 3 is a honeycomb insulating brick wet blank stack; the upper communication pipeline 4 and the lower communication pipeline 5 are respectively provided with a plurality of pipeline shutoff valves 6;
the left end of the upper communicating pipeline 4 is provided with a smoke main inlet, and the right end of the lower communicating pipeline 5 is provided with a smoke main outlet.
The adjacent tower room units 2 are separated by partition walls 7, and pipeline cut-off valves 6 are correspondingly arranged above and below each partition wall 7.
And the upper part and the lower part of the tower chamber unit 2 are respectively provided with a tower chamber unit isolating valve 8, and the tower chamber unit 2 is communicated with the upper communicating pipeline 4 and the lower communicating pipeline 5 through the tower chamber unit isolating valves 8.
A dry desulfurization method of a series-connection type desulfurization tower comprises the following steps: (1) preparing a wet blank of the honeycomb insulating brick;
(2) stacking the wet honeycomb insulating brick blanks prepared in the step (1) on air-permeable object placing plates, stacking the air-permeable object placing plates fully filled with the wet honeycomb insulating brick blanks to form a blank stack, placing the blank stack into each tower chamber unit of a desulfurizing tower in a serial connection manner, wherein the difference value between the sulfur dioxide concentration at an inlet and the sulfur dioxide concentration at an outlet of a sulfur-containing flue gas inlet of the tower chamber unit of the desulfurizing tower is not more than 10mg/Nm3In the process, the blank stack in the tower cell unit is taken out and replaced by a new blank stack.
(3) SO at the total outlet of the flue gas on the lower communicating pipeline (5)2When the concentration is higher than the industry standard 2/3, the blank stack with the smallest difference between the sulfur dioxide concentration at the sulfur-containing flue gas inlet and the sulfur dioxide concentration at the sulfur-containing flue gas outlet of the tower chamber unit is taken out, and the new bee blank stack is replaced. And (4) stacking the blanks taken out from the tower chamber unit in the step (3) under natural conditions, and air-drying to form the honeycomb insulating brick.
The wet blank of the honeycomb insulating brick in the step (1) is prepared from the following raw materials: the main materials are hydrated lime and fly ash, the auxiliary materials are talcum powder, dextrin, molasses, waste oil and water, and the weight ratio of the hydrated lime to the fly ash is 0.47: 2.3, the dosage of the talcum powder is 5% of the dry weight of the hydrated lime and the dry weight of the fly ash, the dosage of the dextrin is 20% of the dry weight of the hydrated lime and the dry weight of the fly ash, and the addition amounts of the honey, the waste oil and the water are respectively 2%, 3% and 15% of the total weight of the hydrated lime, the fly ash, the talcum powder and the dextrin. The weight ratio of the hydrated lime to the fly ash is the weight ratio of the dry weight of the hydrated lime to the dry weight of the fly ash. The utility model discloses slaked lime, fly ash, talcum powder and dextrin are the crushing material, require 100 meshes screen cloth percent of pass to be 100%.
The preparation method of the wet blank of the honeycomb insulating brick in the step (1) comprises the following steps: a. mixing slaked lime, fly ash, talcum powder, dextrin, molasses, waste oil and water according to the weight ratio to prepare a mixed paste material;
b. extruding and molding the mixed paste prepared in the step (a) in a honeycomb material extruder to prepare a wet blank of the honeycomb insulating brick; the internal structure and the appearance of the wet blank of the insulating brick are controlled by the design of the die according to the requirement.
c. And (b) during extrusion molding of the mixed paste, placing an air-permeable object placing plate at a discharge port of an extruder, placing an extruded wet blank of the honeycomb insulating brick on the air-permeable object placing plate by an automatic stacker crane, removing the air-permeable object placing plate after one air-permeable object placing plate is full, and simultaneously placing another air-permeable object placing plate to collect the wet blank of the honeycomb insulating brick.
The wall thickness of an inner hole pore passage of the honeycomb insulating brick is 2mm, and the aperture of the inner hole is 5 mm; the ratio of the pore diameter of the inner hole of the pore canal to the wall thickness of the pore canal of the inner hole is more than 2.7.
The size of the desulfurizing tower is calculated according to the flow of the flue gas to be treated: the total area of the inner holes of the honeycomb insulating bricks which are arranged in the direction vertical to the flow direction of the flue gas is Sm2The smoke flow N is X Nm3And S is required to be more than or equal to 0.3m/S and less than or equal to 4.5 m/S.
The number of the tower chamber units in the desulfurizing tower is calculated according to the desulfurizing amount: assuming the total desulfurization amount is A ton, each kiln of the desulfurizing tower can be loaded with Ca (OH)2The weight is B tons, the number of the desulfurizing tower chambers is C, and B multiplied by C/A is required to be more than or equal to 30.
Example 2
A dry desulfurization method of a series-connection type desulfurization tower comprises the following steps: (1) preparing a wet blank of the honeycomb insulating brick;
(2) preparing the product of step (1)Stacking prepared wet honeycomb insulating brick blanks on the air-permeable object placing plates, stacking the air-permeable object placing plates fully filled with the wet honeycomb insulating brick blanks to form a blank stack, placing the blank stack into each tower chamber unit of the desulfurizing tower in a tandem manner, wherein the difference between the sulfur dioxide concentration at the sulfur-containing flue gas inlet and the sulfur dioxide concentration at the sulfur-containing flue gas outlet of the tower chamber unit of the desulfurizing tower is not more than 10mg/Nm3In the process, the blank stack in the tower cell unit is taken out and replaced by a new blank stack.
(3) SO at the total outlet of the flue gas on the lower communicating pipeline (5)2When the concentration is higher than the industry standard 2/3, the blank stack with the smallest difference between the sulfur dioxide concentration at the sulfur-containing flue gas inlet and the sulfur dioxide concentration at the sulfur-containing flue gas outlet of the tower chamber unit is taken out, and the new bee blank stack is replaced. And (4) stacking the blanks taken out from the tower chamber unit in the step (3) under natural conditions, and air-drying to form the honeycomb insulating brick.
The wet blank of the honeycomb insulating brick in the step (1) is prepared from the following raw materials: the main materials are hydrated lime and fly ash, the auxiliary materials are talcum powder, dextrin, molasses, waste oil and water, and the weight ratio of the hydrated lime to the fly ash is 0.47: 2.3, the dosage of the talcum powder is 1 percent of the dry weight of the hydrated lime and the dry weight of the fly ash, the dosage of the dextrin is 14 percent of the dry weight of the hydrated lime and the dry weight of the fly ash, and the addition amounts of the honey, the waste oil and the water are respectively 0.5 percent, 1 percent and 10 percent of the total weight of the hydrated lime, the fly ash, the talcum powder and the dextrin. The weight ratio of the hydrated lime to the fly ash is the weight ratio of the dry weight of the hydrated lime to the dry weight of the fly ash. The utility model discloses slaked lime, fly ash, talcum powder and dextrin are the crushing material, require 100 meshes screen cloth percent of pass to be 100%.
The preparation method of the wet blank of the honeycomb insulating brick in the step (1) comprises the following steps: a. mixing slaked lime, fly ash, talcum powder, dextrin, molasses, waste oil and water according to the weight ratio to prepare a mixed paste material;
b. extruding and molding the mixed paste prepared in the step (a) in a honeycomb material extruder to prepare a wet blank of the honeycomb insulating brick; the internal structure and the appearance of the wet blank of the insulating brick are controlled by the design of the die according to the requirement.
c. And (b) during extrusion molding of the mixed paste, placing an air-permeable object placing plate at a discharge port of an extruder, placing an extruded wet blank of the honeycomb insulating brick on the air-permeable object placing plate by an automatic stacker crane, removing the air-permeable object placing plate after one air-permeable object placing plate is full, and simultaneously placing another air-permeable object placing plate to collect the wet blank of the honeycomb insulating brick.
The wall thickness of an inner hole pore passage of the honeycomb insulating brick is 0.5mm, and the aperture of the inner hole is 1.5 mm; the ratio of the pore diameter of the inner hole of the pore canal to the wall thickness of the pore canal of the inner hole is more than 2.7.
The size of the desulfurizing tower is calculated according to the flow of the flue gas to be treated: the total area of the inner holes of the honeycomb insulating bricks which are arranged in the direction vertical to the flow direction of the flue gas is Sm2The smoke flow N is X Nm3And S is required to be more than or equal to 0.3m/S and less than or equal to 4.5 m/S.
The number of the tower chamber units in the desulfurizing tower is calculated according to the desulfurizing amount: assuming the total desulfurization amount is A ton, each kiln of the desulfurizing tower can be loaded with Ca (OH)2The weight is B tons, the number of the desulfurizing tower chambers is C, and B multiplied by C/A is required to be more than or equal to 30. The other structure is the same as that of embodiment 1.
Example 3
A dry desulfurization method of a series-connection type desulfurization tower comprises the following steps: (1) preparing a wet blank of the honeycomb insulating brick;
(2) stacking the wet honeycomb insulating brick blanks prepared in the step (1) on air-permeable object placing plates, stacking the air-permeable object placing plates fully filled with the wet honeycomb insulating brick blanks to form a blank stack, placing the blank stack into each tower chamber unit of a desulfurizing tower in a serial connection manner, wherein the difference value between the sulfur dioxide concentration at an inlet and the sulfur dioxide concentration at an outlet of a sulfur-containing flue gas inlet of the tower chamber unit of the desulfurizing tower is not more than 10mg/Nm3In the process, the blank stack in the tower cell unit is taken out and replaced by a new blank stack.
(3) SO at the total outlet of the flue gas on the lower communicating pipeline (5)2When the concentration is higher than the industry standard 2/3, the blank stack with the smallest difference between the sulfur dioxide concentration at the sulfur-containing flue gas inlet and the sulfur dioxide concentration at the sulfur-containing flue gas outlet of the tower chamber unit is taken out, and the new bee blank stack is replaced. Stacking the blanks taken out of the tower chamber unit in the step (3) and airing the blanks under natural conditions to form the honeycomb protectorAnd (5) warming the brick.
The wet blank of the honeycomb insulating brick in the step (1) is prepared from the following raw materials: the main materials are hydrated lime and fly ash, the auxiliary materials are talcum powder, dextrin, molasses, waste oil and water, and the weight ratio of the hydrated lime to the fly ash is 0.47: 2.3, the dosage of the talcum powder is 9% of the dry weight of the hydrated lime and the dry weight of the fly ash, the dosage of the dextrin is 29% of the dry weight of the hydrated lime and the dry weight of the fly ash, and the addition amounts of the honey, the waste oil and the water are 3%, 1% -4% and 23% of the total weight of the hydrated lime, the fly ash, the talcum powder and the dextrin respectively.
The preparation method of the wet blank of the honeycomb insulating brick in the step (1) comprises the following steps: a. mixing slaked lime, fly ash, talcum powder, dextrin, molasses, waste oil and water according to the weight ratio to prepare a mixed paste material;
b. extruding and molding the mixed paste prepared in the step (a) in a honeycomb material extruder to prepare a wet blank of the honeycomb insulating brick; the internal structure and the appearance of the wet blank of the insulating brick are controlled by the design of the die according to the requirement.
c. And (b) during extrusion molding of the mixed paste, placing an air-permeable object placing plate at a discharge port of an extruder, placing an extruded wet blank of the honeycomb insulating brick on the air-permeable object placing plate by an automatic stacker crane, removing the air-permeable object placing plate after one air-permeable object placing plate is full, and simultaneously placing another air-permeable object placing plate to collect the wet blank of the honeycomb insulating brick.
The wall thickness of an inner hole pore canal of the honeycomb insulating brick is 3.5mm, and the aperture of the inner hole is 10 mm; the ratio of the pore diameter of the inner hole of the pore canal to the wall thickness of the pore canal of the inner hole is more than 2.7.
The size of the desulfurizing tower is calculated according to the flow of the flue gas to be treated: the total area of the inner holes of the honeycomb insulating bricks which are arranged in the direction vertical to the flow direction of the flue gas is Sm2The smoke flow N is X Nm3And S is required to be more than or equal to 0.3m/S and less than or equal to 4.5 m/S.
The number of the tower chamber units in the desulfurizing tower is calculated according to the desulfurizing amount: assuming the total desulfurization amount is A ton, each kiln of the desulfurizing tower can be loaded with Ca (OH)2The weight is B tons, the number of the desulfurizing tower chambers is C, and B multiplied by C/A is required to be more than or equal to 30. It is composed ofThe structure is the same as that of example 1.
Claims (4)
1. A tandem type desulfurizing tower is characterized in that: the device comprises a closed kiln body (1), wherein an upper communication pipeline (4) is arranged in the society at the top of the closed kiln body (1), a lower communication pipeline (5) is arranged at the bottom of the closed kiln body (1), the inside of the closed kiln body (1) is divided into a plurality of tower chamber units (2), a blank stack is arranged in each tower chamber unit (2), and the blank stack is a wet blank stack of honeycomb insulating bricks; the upper communicating pipeline (4) and the lower communicating pipeline (5) are respectively provided with a plurality of pipeline shutoff valves (6).
2. The tandem desulfurization tower of claim 1, wherein: the left end of the upper communicating pipeline (4) is provided with a smoke main inlet, and the right end of the lower communicating pipeline (5) is provided with a smoke main outlet.
3. The tandem desulfurization tower of claim 1, wherein: the adjacent tower chamber units (2) are separated by partition walls (7), and pipeline cut-off valves (6) are correspondingly arranged above and below each partition wall (7).
4. The tandem desulfurization tower of claim 1, wherein: the tower chamber unit (2) is provided with tower chamber unit isolating valves (8) above and below, and the tower chamber unit (2) is communicated with the upper communicating pipeline (4) and the lower communicating pipeline (5) through the tower chamber unit isolating valves (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021261474.9U CN212262840U (en) | 2020-07-01 | 2020-07-01 | Series-connection type desulfurizing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021261474.9U CN212262840U (en) | 2020-07-01 | 2020-07-01 | Series-connection type desulfurizing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212262840U true CN212262840U (en) | 2021-01-01 |
Family
ID=73898312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021261474.9U Active CN212262840U (en) | 2020-07-01 | 2020-07-01 | Series-connection type desulfurizing tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212262840U (en) |
-
2020
- 2020-07-01 CN CN202021261474.9U patent/CN212262840U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102755827B (en) | Flue gas desulfurization process and device adopting acetylene sludge-gypsum method | |
| CN101249373A (en) | Flue gas desulfurization agent | |
| CN104692689B (en) | The method and its device of the modified oxidized calcium swelling agent of coproduction after a kind of flue gas dry desulfurizing | |
| CN107261826A (en) | A kind of cement kiln flue gas catalytically fixed sulphur pulvis | |
| CN105801067B (en) | A kind of grey material modified method applied to wall plastering material of flue gas desulfurization | |
| CN212262840U (en) | Series-connection type desulfurizing tower | |
| CN111672289A (en) | Series-connection type desulfurizing tower and dry-type desulfurizing method thereof | |
| CN202751947U (en) | Flue gas desulfurization (FGD) device using carbide slag-gypsum method | |
| WO2022100420A1 (en) | Apparatus and method for recycling flue gas byproduct in glass or glass fiber industry | |
| CN111718204A (en) | Honeycomb insulating brick and preparation method thereof | |
| CN202315653U (en) | Device for lowering humidity of discharged smoke of wet desulphurization system | |
| CN101890289A (en) | Process for flue gas desulfurization by using granulating water solution | |
| CN106215678B (en) | Cement kiln semi-dry desulfurization system | |
| CN101670223A (en) | Method and device for desulfurizing flue gas | |
| CN207324498U (en) | With the desulfurizer of lime/lime stone slurry absorbing sulfur dioxide in flue | |
| CN104891914A (en) | Method for preparing aerated brick from papermaking black liquor | |
| CN104474873B (en) | Acid tail gas absorption tank | |
| CN114105535A (en) | Method for preparing light energy-saving wall material by sintering desulfurized ash through high-doping semidry method | |
| CN109351156B (en) | System and method for removing sulfur dioxide in tail gas of cement kiln | |
| CN207483617U (en) | Gypsum process units and integral system with fluid bed | |
| CN107158922A (en) | The desulfurizer and method of absorbing sulfur dioxide in flue are starched with lime/lime stone | |
| CN101857386A (en) | High-calcium flyash fixed sealing material and preparation method thereof | |
| CN210645861U (en) | High-efficiency energy-saving industrial desulfurization machine | |
| CN102225306A (en) | Slag-sodium alkali dual-alkali wet type flue gas desulfurization process | |
| CN206372676U (en) | A kind of hydrogen sulfide waste gas enters kiln burning removal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210729 Address after: 475000 Dong Jiao Bian Cun, Shunhe District, Kaifeng City, Henan Province Patentee after: Kaifeng Pingmei new carbon material technology Co.,Ltd. Address before: 475002 Dongjiao Xiangbian village, Shunhe District, Kaifeng City, Henan Province Patentee before: Henan Kaitan new material design and Research Institute Co.,Ltd. |
|
| TR01 | Transfer of patent right |