Pulse bag desulfurization and denitrification dust collector system for easy deashing

Abstract

A pulse bag desulfurization and denitrification dust collector system which is convenient for deashing relates to the field of pulse bag dust collector equipment. It comprises an air inlet pipe, an electromagnetic pulsation mechanism, a controller, a denitrification waste liquid pipe, a dust exhaust pipe, a support column, a desulfurization waste liquid pipe, a desulfurization mechanism, a second connecting pipe, a dust removal mechanism, a first connecting pipe, an air outlet pipe, a denitrification mechanism, and a main shell. The air inlet pipe and the air outlet pipe pass through the main shell. One side of the air inlet pipe is connected to the denitrification mechanism. A denitrification waste liquid pipe is arranged below the denitrification mechanism. One side of the denitrification mechanism is connected to the dust removal mechanism through the first connecting pipe. A dust exhaust pipe is arranged below the dust removal mechanism. The beneficial effects of the present invention are as follows: when purifying gas, it can not only effectively eliminate dust in the gas, but also eliminate NOx and SO2 in the gas, so that the desulfurization and denitrification of the equipment can be better guaranteed, and it has multiple effects such as deashing, desulfurization and denitrification.

Description

Technical Field

[0001] The invention relates to the field of pulse bag dust collector equipment, and in particular to a pulse bag desulfurization and denitrification dust collector system which is convenient for deashing. Background Art

[0002] In industrial production, coal needs to be burned, and harmful elements in coal are released and form pollutants, which will be discharged into the atmosphere. Pollutants include NOx, dust, SO2, CO2, heavy metal elements, etc. Among them, NOx, dust, SO2, are more harmful to the atmosphere, and pulse bag dust collector is used for purification;

[0003] Since the pulse bag dust collector was introduced in the 1950s, it has been widely used at home and abroad and has been continuously improved. It has made great progress in purifying dust-containing gases. Due to the advanced cleaning technology and the greatly improved gas-to-cloth ratio, it has the characteristics of large air volume, small footprint, high purification efficiency, reliable operation, simple structure, and small maintenance. The dust removal efficiency can reach more than 99%. It is a mature and relatively complete high-efficiency dust removal equipment with strong cleaning ability, high dust removal efficiency, low emission concentration, low air leakage rate, low energy consumption, low steel consumption, small footprint, stable and reliable operation, good economic benefits, extended cleaning cycle, reduced cleaning energy consumption, and greatly reduced compressed air consumption. The pulse bag dust collector can provide convenience for people in daily use, but it still has the following shortcomings:

[0004] In the prior art, when the equipment is performing corresponding gas purification operations, it has obvious effects and functions on the dust cleaning operation of the gas, but the effect on the elimination of NOx and SO2 in the gas is not obvious, and it is often necessary to connect it to other facilities and equipment for elimination, which not only makes the overall structure of the equipment larger, but also affects the desulfurization and denitrification effects of the equipment. Summary of the invention

[0005] The purpose of the present invention is to provide a pulse bag desulfurization and denitrification dust collector system that is easy to remove dust, in which the equipment in the prior art has obvious effects and functions on the dust cleaning operation of the corresponding gas when performing purification operations on the corresponding gas, but has no obvious effect on the elimination of NOx and SO2 in the gas, and often needs to be connected to other facilities and equipment for elimination, which not only makes the overall structure of the equipment larger, but also affects the desulfurization and denitrification effects of the equipment.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a pulse bag desulfurization and denitrification dust collector system that is convenient for deashing, which includes an air inlet pipe, an electromagnetic pulsation mechanism, a controller, a denitrification waste liquid pipe, a dust exhaust pipe, a support column, a desulfurization waste liquid pipe, a desulfurization mechanism, a second connecting pipe, a dust removal mechanism, a first connecting pipe, an air outlet pipe, a denitrification mechanism, and a main body shell. The air inlet pipe and the air outlet pipe penetrate the main body shell, one side of the air inlet pipe is connected to the denitrification mechanism, a denitrification waste liquid pipe is arranged below the denitrification mechanism, one side of the denitrification mechanism is connected to the dust removal mechanism through the first connecting pipe, a dust exhaust pipe is arranged below the dust removal mechanism, one side of the dust removal mechanism is connected to the desulfurization mechanism through the second connecting pipe, an air outlet pipe is arranged on the dust removal mechanism, the desulfurization waste liquid pipe is arranged above the dust removal mechanism, and one side of the support column is fixedly connected to the bottom of the main body shell;

[0007] The denitrification mechanism is composed of a pressure-resistant protective shell, an ammonia water injection device, and an ammonia water delivery pipe. The pressure-resistant protective shell is equipped with an ammonia water delivery pipe and an ammonia water injection device, and the ammonia water delivery pipe is equipped with an ammonia water injection device. The dust removal mechanism is composed of an isolation shell wall, an airflow vibration plate, and an anode plate. The anode plate is connected to the electromagnetic pulsation mechanism. The lower part of the anode plate is arranged on the airflow vibration plate, and the airflow vibration plate is arranged on the isolation shell wall. The desulfurization mechanism is composed of a multi-stage shunt pipe, a small shunt pipe, a containing shell, a partition baffle, and a liquid replenishing pipe. One side of the second connecting pipe is connected to the multi-stage shunt pipe, and a small shunt pipe is arranged on the multi-stage shunt pipe. The containing shell is provided with a partition baffle. One side of the containing shell is provided with a liquid replenishing pipe, and the liquid replenishing pipe runs through one side of its main shell.

[0008] As a more specific embodiment of the present invention: the air inlet pipe and the air outlet pipe are symmetrically arranged on the main body shell, and the diameter of the air inlet pipe is equal to the diameter of the air outlet pipe.

[0009] As a more specific embodiment of the present invention: there are more than two support columns, which are evenly distributed on the outer side below the main body shell.

[0010] As a more specific embodiment of the present invention: the ammonia water injection devices are provided with more than two, and are arranged in pairs corresponding to each other; the anode plates are provided with more than two, and the spacing between the two is equal; the small shunt pipes are provided with more than two, and are evenly distributed on the multi-stage shunt pipes.

[0011] As a more specific embodiment of the present invention: the denitration waste liquid pipe is in an "S" shape, and the first connecting pipe is in an inverted "U" shape, which can effectively isolate the gas.

[0012] As a more specific embodiment of the present invention: the diameter of the second connecting pipe is slightly larger than the diameter of the first connecting pipe, and the flow rate of the gas is changed by differentiating the sizes of the pipes.

[0013] As a more specific embodiment of the present invention: the desulfurization mechanism is filled with a CaCO3 solution, and the CaCO3 solution shall not be less than half of the partition baffle to ensure that the gas can be fully mixed with the CaCO3 solution.

[0014] The working principle of the present invention is as follows: when in use, the staff shall install and connect the equipment with the designated equipment, and install the equipment to the designated position, and then drive the equipment through the controller. When working, the gas will enter from the air inlet pipe and then enter the denitrification mechanism. At this time, the ammonia injection device on the denitrification mechanism will evenly spray ammonia, and the ammonia delivery pipe will provide ammonia for its ammonia injection device. At this time, the gas will contact with the ammonia and undergo a corresponding chemical reaction. The chemical formula is 2NO+2NO2+4NH3=4N2+6H2O, so as to complete the denitrification operation, and the waste liquid will be discharged from the denitrification waste liquid pipe to the outside of the equipment, and the gas will enter the dust removal mechanism after denitrification. At this time, the anode plate will absorb fine particles such as dust in the gas, and its airflow vibration plate will vibrate the anode plate at a certain frequency under the drive of the gas, so that the dust on the anode plate falls into the dust exhaust pipe, and then the gas will enter the desulfurization mechanism through the second connecting pipe. At this time, the multi-stage diversion pipe and the fine diversion pipe will divert the gas and fully mix it with the CaCO3 liquid in the desulfurization mechanism, and SO2+½O2+CACO3+2H2O=CASO4+2H2O+CO2 will occur. The waste liquid will be discharged from the desulfurization waste liquid pipe, so that it can obtain gas for desulfurization operation, and then the gas after purification will be discharged from the outlet pipe, so that the dust content in the final exhaust gas is <20mg / m 2 , SO2 content <50mg / m 2 , NO2 content <100mg / m 2， , which can better purify the pollutants in the gas.

[0015] After adopting the above technical scheme, the beneficial effect of the present invention is: when purifying gas, it can not only effectively eliminate dust in the gas, but also eliminate NOx and SO2 in the gas, so that the desulfurization and denitrification of the equipment can be better guaranteed, and it has multiple effects such as deashing, desulfurization and denitrification. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure of the denitrification mechanism 13.

[0019] Figure 3 yes Figure 1 Schematic diagram of the structure of the dust removal mechanism 10.

[0020] Figure 4 yes Figure 1 Schematic diagram of the structure of the desulfurization mechanism 8.

[0021] Explanation of the reference numerals: air intake pipe 1, electromagnetic pulsation mechanism 2, controller 3, denitrification waste liquid pipe 4, dust exhaust pipe 5, support column 6, desulfurization waste liquid pipe 7, desulfurization mechanism 8, second connecting pipe 9, dust removal mechanism 10, first connecting pipe 11, air outlet pipe 12, denitrification mechanism 13, main body shell 14, pressure-resistant protective shell 131, ammonia solution injection device 132, ammonia solution delivery pipe 133, isolation shell wall 101, air flow vibration plate 102, anode plate 103, multi-stage shunt pipe 801, small shunt pipe 802, container shell 803, partition baffle 804, liquid replenishment pipe 805. DETAILED DESCRIPTION

[0022] See also Figure 1-Figure 4 As shown, the technical solution adopted in this specific embodiment is: it includes an air intake pipe 1, an electromagnetic pulsation mechanism 2, a controller 3, a denitration waste liquid pipe 4, a dust exhaust pipe 5, a support column 6, a desulfurization waste liquid pipe 7, a desulfurization mechanism 8, a second connecting pipe 9, a dust removal mechanism 10, a first connecting pipe 11, an air outlet pipe 12, a denitration mechanism 13, and a main body shell 14, wherein the air intake pipe 1 and the air outlet pipe 12 pass through the main body shell 14, one side of the air intake pipe 1 is connected to the denitration mechanism 13, a denitration waste liquid pipe 4 is arranged below the denitration mechanism 13, one side of the denitration mechanism 13 is connected to the dust removal mechanism 10 through the first connecting pipe 11, a dust exhaust pipe 5 is arranged below the dust removal mechanism 10, one side of the dust removal mechanism 10 is connected to the desulfurization mechanism 8 through the second connecting pipe 9, an air outlet pipe 12 is arranged on the dust removal mechanism 10, the upper part of the desulfurization waste liquid pipe 7 is arranged on the dust removal mechanism 10, and one side of the support column 6 is fixedly connected to the lower part of the main body shell 14;

[0023] The denitrification mechanism 13 is composed of a pressure-resistant protective shell 131, an ammonia water injection device 132, and an ammonia water delivery pipe 133. The pressure-resistant protective shell 131 is provided with an ammonia water delivery pipe 133 and an ammonia water injection device 132. The ammonia water delivery pipe 133 is provided with an ammonia water injection device 132. The dust removal mechanism 10 is composed of an isolation shell wall 101, an airflow vibration plate 102, and an anode plate 103. The anode plate 103 is connected to the electromagnetic pulsation mechanism 2. The lower part of the anode plate 103 is arranged on the airflow vibration plate 102. The flow vibration plate 102 is arranged on the insulating shell wall 101, and the desulfurization mechanism 8 is composed of a multi-stage diversion pipe 801, a small diversion pipe 802, a container shell 803, a partition baffle 804, and a liquid replenishing pipe 805. One side of the second connecting pipe 9 is connected to the multi-stage diversion pipe 801, and a small diversion pipe 802 is provided on the multi-stage diversion pipe 801. The container shell 803 is provided with a partition baffle 804. One side of the container shell 803 is provided with a liquid replenishing pipe 805, and the liquid replenishing pipe 805 runs through one side of its main shell 14.

[0024] As a more specific embodiment of the present invention: the air inlet pipe 1 and the air outlet pipe 12 are symmetrically arranged on the main body shell 14, the diameter of the air inlet pipe 1 is equal to the diameter of the air outlet pipe 12, there are more than two support columns 6, and they are evenly distributed on the outside below the main body shell 14, there are more than two ammonia injection devices 132, and they are arranged corresponding to each other, there are more than two anode plates 103, and the spacing between them is equal, there are more than two small shunt pipes 802, and they are evenly distributed on the multi-stage shunt pipes 801, the denitrification waste liquid pipe 4 is "S"-shaped, the first connecting pipe 11 is inverted "U" shape, which can effectively isolate the gas, the diameter of the second connecting pipe 9 is slightly larger than the diameter of the first connecting pipe 11, and the gas flow rate is changed by the size difference of the pipe, the desulfurization mechanism 8 is filled with CaCO3 solution, and the CaCO3 solution shall not be less than half of the partition baffle 804 to ensure that its gas can be fully mixed with the CaCO3 solution.

[0025] The working principle of the present invention is as follows: when in use, the staff shall install and connect the equipment with the designated equipment, and install the equipment to the designated position, and then drive the equipment through the controller. When working, the gas will enter from the air inlet pipe and then enter the denitrification mechanism. At this time, the ammonia injection device on the denitrification mechanism will evenly spray ammonia, and the ammonia delivery pipe will provide ammonia for its ammonia injection device. At this time, the gas will contact with the ammonia and undergo a corresponding chemical reaction. The chemical formula is 2NO+2NO2+4NH3=4N2+6H2O, so as to complete the denitrification operation, and the waste liquid will be discharged from the denitrification waste liquid pipe to the outside of the equipment, and the gas will enter the dust removal mechanism after denitrification. At this time, the anode plate will absorb fine particles such as dust in the gas, and its airflow vibration plate will vibrate the anode plate at a certain frequency under the drive of the gas, so that the dust on the anode plate falls into the dust exhaust pipe, and then the gas will enter the desulfurization mechanism through the second connecting pipe. At this time, the multi-stage diversion pipe and the fine diversion pipe will divert the gas and fully mix it with the CaCO3 solution in the desulfurization mechanism, and SO2+½O2+CACO3+2H2O=CASO4+2H2O+CO2 will occur. The waste liquid will be discharged from the desulfurization waste liquid pipe, so that it can obtain gas for desulfurization operation, and then the gas after purification will be discharged from the outlet pipe, so that the dust content in the final exhaust gas is <20mg / m 2 , SO2 content <50mg / m 2 , NO2 content <100mg / m 2， , which can better purify the pollutants in the gas.

[0026] The above description is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. The pulse bag desulfurization and denitrification dust collector system is convenient for deashing, and its characteristics are: It comprises an air intake pipe (1), an electromagnetic pulsation mechanism (2), a controller (3), a denitration waste liquid pipe (4), a dust exhaust pipe (5), a support column (6), a desulfurization waste liquid pipe (7), a desulfurization mechanism (8), a second connecting pipe (9), a dust exhaust mechanism (10), a first connecting pipe (11), an air outlet pipe (12), a denitration mechanism (13), and a main body shell (14). The air intake pipe (1) and the air outlet pipe (12) penetrate the main body shell (14). One side of the air intake pipe (1) is connected to the denitration mechanism (13). A denitrification waste liquid pipe (4) is provided below the mechanism (13); one side of the denitrification mechanism (13) is connected to the dust removal mechanism (10) via a first connecting pipe (11); a dust exhaust pipe (5) is provided below the dust removal mechanism (10); one side of the dust removal mechanism (10) is connected to the desulfurization mechanism (8) via a second connecting pipe (9); an air outlet pipe (12) is provided on the dust removal mechanism (10); the desulfurization waste liquid pipe (7) is arranged above the dust removal mechanism (10); and one side of the support column (6) is fixedly connected to the bottom of the main body shell (14); The denitrification mechanism (13) is composed of a pressure-resistant protective shell (131), an ammonia water injection device (132), and an ammonia water delivery pipe (133); the pressure-resistant protective shell (131) is provided with an ammonia water delivery pipe (133) and the ammonia water injection device (132); the ammonia water injection device (132) is provided on the ammonia water delivery pipe (133); the dust removal mechanism (10) is composed of an isolation shell wall (101), an airflow vibration plate (102), and an anode plate (103); the anode plate (103) is connected to the electromagnetic pulsation mechanism (2); the anode plate (103) is arranged on the airflow vibration plate (102) below the anode plate (103); the airflow The vibration plate (102) is arranged on the wall of the insulating shell (101); the desulfurization mechanism (8) is composed of a multi-stage shunt pipe (801), a fine shunt pipe (802), a container shell (803), a partition baffle (804), and a liquid replenishing pipe (805); one side of the second connecting pipe (9) is connected to the multi-stage shunt pipe (801); the multi-stage shunt pipe (801) is provided with a fine shunt pipe (802); the container shell (803) is provided with a partition baffle (804); one side of the container shell (803) is provided with a liquid replenishing pipe (805); and the liquid replenishing pipe (805) passes through one side of the main shell (14); The air inlet pipe (1) and the air outlet pipe (12) are symmetrically arranged on the main body shell (14), and the diameter of the air inlet pipe (1) is equal to the diameter of the air outlet pipe (12); More than two support columns (6) are provided and are evenly distributed on the outer side below the main body shell (14).

2. The pulse bag desulfurization and denitrification dust collector system for easy deashing according to claim 1 is characterized in that: The ammonia water injection devices (132) are provided with more than two and are arranged in pairs corresponding to each other, the anode plates (103) are provided with more than two and are spaced at equal intervals between each other, and the fine flow diversion pipes (802) are provided with more than two and are evenly distributed on the multi-stage flow diversion pipes (801).

3. The pulse bag desulfurization and denitrification dust collector system for easy deashing according to claim 1 is characterized in that: The denitration waste liquid pipe (4) is in an "S" shape, and the first connecting pipe (11) is in an inverted "U" shape.

4. The pulse bag desulfurization and denitrification dust collector system for easy deashing according to claim 1 is characterized in that: The diameter of the second connecting tube (9) is slightly larger than the diameter of the first connecting tube (11).

5. The pulse bag desulfurization and denitrification dust collector system for easy deashing according to claim 1 is characterized in that: The desulfurization mechanism (8) is filled with a CaCO3 solution, and the CaCO3 solution must not be lower than half of the partition baffle (804).

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