Waste incineration flue gas treatment equipment

Abstract

The invention relates to the technical field of electrostatic dust collection equipment, and discloses waste incineration flue gas treatment equipment which comprises an outer box body, a dust collection cavity is formed in the outer box body, an end plate is arranged at the bottom of the outer surface of the outer box body, an adsorption device is arranged in the middle of an inner cavity of the outer box body, and one side of the outer surface of the adsorption device is located in the inner cavity of the outer box body; the other side of the outer surface of the adsorption device is positioned in the inner cavity of the dust collection cavity; and a discharge polar plate is arranged in the middle of the top end of the inner cavity of the outer box. According to the waste incineration flue gas treatment equipment, the adsorption device and the structure on the adsorption device are arranged, dust particles carrying negative charges can be captured through the dust collection ring with positive charges on the outer surface, and the dust particles are transferred into the inner cavity of the dust collection cavity from the inner cavity of the outer box body and scraped off in the continuous rotation process of the dust collection ring; and therefore, excessive dust particles cannot be gathered on the outer surface of the dust collecting ring, and the dust collecting ring is always kept to have relatively strong adsorption force on the dust particles with negative charges.

Description

Technical Field

[0001] The present application relates to the technical field of electrostatic dust removal equipment, and in particular to a waste incineration flue gas treatment device. Background Art

[0002] Waste incineration is a process of oxidizing waste at high temperatures to reduce its volume and turn it into residue or molten solid matter. Compared with traditional treatment methods, the waste reduction effect after incineration is significant, and it can effectively eliminate various pathogens and convert toxic and harmful substances into harmless substances. At the same time, the heat generated during waste incineration can be recycled to achieve the purpose of waste resource utilization. Therefore, waste incineration has become an important part of the circular economy. When garbage is incinerated, a large amount of smoke and dust will inevitably be generated. Therefore, existing garbage incinerators need to be equipped with smoke and dust purification devices to reduce the pollution to the atmosphere caused by smoke and dust emissions. Among them, since the smoke and dust generated by garbage incineration has a high temperature, electrostatic dust removal is often used to eliminate the dust particles therein. However, when the existing electrostatic dust collector gathers the negatively charged dust particles onto the positively charged dust collecting plate, as the dust particles on the dust collecting plate gather, its adsorption capacity for the negatively charged dust particles decreases, which seriously affects its treatment effect on the dust particles in the smoke, and easily causes a large number of dust particles to fail to be captured by the dust collecting plate and be discharged into the atmosphere, and its stability and reliability are poor.

[0003] Therefore, there is an urgent need for an electrostatic precipitator for garbage incineration to solve the defects existing in the above-mentioned existing electrostatic precipitator during actual use. Summary of the invention

[0004] The present application proposes a waste incineration flue gas treatment equipment, which has the function of scraping and collecting the dust particles accumulated on the dust collecting plate while adsorbing the negatively charged dust particles on the dust collecting plate, so that it can always maintain a strong adsorption force on the negatively charged dust particles and has a better treatment effect on the smoke. It is used to solve the problem that when the existing electrostatic dust collector gathers the negatively charged dust particles on the positively charged dust collecting plate, as the dust particles on the dust collecting plate accumulate, its adsorption capacity for the negatively charged dust particles decreases, which seriously affects its treatment effect on the dust particles in the smoke, and easily causes a large number of dust particles to fail to be captured by the dust collecting plate and be discharged into the atmosphere.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a waste incineration flue gas treatment equipment, including an outer box body whose top is fixedly installed on the incinerator flue gas duct and connected thereto, a group of dust collecting cavities for depositing dust particles are respectively provided on both sides of the inner part of the outer box body, and a group of end plates are respectively provided at the bottom of the left and right sides of the outer surface of the outer box body, so that the dust particles deposited in the dust collecting cavity can be cleaned by opening the end plates, a group of adsorption devices are respectively provided on both sides of the middle part of the inner cavity of the outer box body, and one side of the outer surface of the adsorption device is located at the outer box body The adsorption device is located in the inner cavity of the dust collecting chamber, and the other side of the outer surface of the adsorption device is located in the inner cavity of the dust collecting chamber. When the dust-containing flue gas flows in the inner cavity of the outer box body, the dust particles thereon are captured by the adsorption device and adsorbed on its outer surface. As the adsorption device rotates, the dust particles are transferred to the inner cavity of the dust collecting chamber and are scraped off. A discharge electrode plate is provided in the middle of the top end of the inner cavity of the outer box body, and an ionization field is formed at the top of the inner cavity of the outer box body, so that the dust particles flowing through here can combine with negative ions to carry negative charges, and then can be captured by the adsorption device with positive charges on the outer surface.

[0006] Furthermore, the adsorption device includes a connecting rod with both ends fixedly mounted on the outer box body, a driving mechanism fixedly mounted on the middle part of the outer surface of the connecting rod, and a dust collecting ring located at the periphery of the driving mechanism is transmission-connected to the output shaft of the driving mechanism, and a group of positive electrode ring groups with local annular structures are respectively provided on both sides of the outer surface of the connecting rod, and a carbon ring is provided on the outer surface of the positive electrode ring group to contact the inner wall of the dust collecting ring, so that under the action of the positive electrode ring group and the carbon ring, the outer surface of the dust collecting ring can be forced to carry positive charge to capture dust particles carrying negative charge.

[0007] Furthermore, the outer surface of the dust collecting ring is divided into several areas by its internal insulating strips, and negative electrode ring groups in a partial annular structure staggered from the positive electrode ring group are fixedly installed on both sides of the outer surface of the positive electrode ring group, so as to neutralize the positive charge on a certain area of ​​the dust collecting ring that rotates to contact the negative electrode ring group, and make it easier to scrape off the dust particles captured thereon.

[0008] Furthermore, the dust collecting ring on the left side rotates counterclockwise under the driving action of the driving mechanism, while the dust collecting ring on the right side rotates clockwise under the driving action of the driving mechanism thereon.

[0009] Furthermore, a piston is provided at the top of the dust collecting chamber, and the piston is transmission-connected to the top of the outer box body through an elastic member, and a sealing block is fixedly installed at the bottom of the piston, and the bottom of one side of the sealing block is in contact with the outer surface of the dust collecting ring at the initial time, so that when the flue gas treatment device is not working, the dust collecting chamber can be sealed to prevent the dust particles deposited thereon from flowing back into the inner cavity of the outer box body and being discharged into the atmosphere, and an inner cavity body connected with the piston and the gap of the sealing block is provided inside the outer box body, and the interior of the inner cavity body is filled with a full volume of gas with a large thermal expansion coefficient, so that when the flue gas treatment device is working, the temperature of the flue gas entering the inner cavity of the outer box body is relatively high, and under the action of thermal expansion and contraction, the gas in the inner cavity of the inner cavity expands, and forces the piston to move upward to compress the elastic member, so that the bottom of one side of the sealing block and the outer surface of the dust collecting ring are separated from each other to ensure the normal operation of the adsorption device.

[0010] The beneficial effects of the present invention are as follows: The present application provides a waste incineration flue gas treatment equipment. For the setting of the adsorption device and the structure thereon, a dust collecting ring with a positive charge on the outer surface can be used to capture dust particles carrying negative charge, and in the process of continuous rotation of the dust collecting ring, the dust particles are transferred from the inner cavity of the outer box to the inner cavity of the dust collecting cavity and scraped off, thereby ensuring that too many dust particles are not accumulated on the outer surface of the dust collecting ring, so as to always maintain a strong adsorption force on the negatively charged dust particles, so that the flue gas treatment device has a better treatment effect on the smoke, and has higher stability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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 are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work: Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a front view of the structure of the present invention; Figure 3 A top view of the structure of the present invention; Figure 4 It is a schematic diagram of the installation structure of the adsorption device of the present invention.

[0012] In the figure: 1-outer box, 2-dust collecting chamber, 3-adsorption device, 4-discharge electrode plate, 5-end plate, 6-piston member, 7-sealing block, 8-elastic member, 9-inner cavity, 10-connecting rod, 11-driving mechanism, 12-dust collecting ring, 13-positive electrode ring group, 14-carbon ring, 15-negative electrode ring group. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] like Figure 1 , Figure 2 As shown, a waste incineration flue gas treatment device comprises an outer box body 1 fixedly mounted on the top end of the incinerator flue gas duct and connected thereto, a group of dust collecting chambers 2 for depositing dust particles are respectively arranged on both sides of the inner part of the outer box body 1, and a group of end plates 5 are respectively arranged at the bottom of the left and right sides of the outer surface of the outer box body 1, and the dust particles deposited in the dust collecting chamber 2 can be cleaned by opening the end plates 5, and a group of adsorption devices 3 are respectively arranged on both sides of the middle part of the inner cavity of the outer box body 1, and one side of the outer surface of the adsorption device 3 is located in the inner cavity of the outer box body 1, and the adsorption device 3 is disposed on both sides of the inner cavity of the outer box body 1. The other side of the outer surface of the device 3 is located in the inner cavity of the dust collecting chamber 2, and then when the dust-containing flue gas flows in the inner cavity of the outer box body 1, the dust particles thereon are captured by the adsorption device 3 and adsorbed on its outer surface, and with the rotation of the adsorption device 3, the dust particles are transferred to the inner cavity of the dust collecting chamber 2 and are scraped off, and a discharge electrode plate 4 is provided in the middle of the top of the inner cavity of the outer box body 1, and an ionization field is formed at the top of the inner cavity of the outer box body 1, so that the dust particles flowing through here can combine with negative ions to carry negative charges, and then can be captured by the adsorption device 3 with positive charges on the outer surface.

[0015] like Figure 2-Figure 4 As shown, in the present technical solution, the adsorption device 3 includes a connecting rod 10 whose two ends are respectively fixedly mounted on the outer box body 1, a driving mechanism 11 is fixedly mounted on the middle part of the outer surface of the connecting rod 10, and a dust collecting ring 12 located at the periphery of the driving mechanism 11 is transmission-connected on the output shaft of the driving mechanism 11, the driving mechanism 11 is set as a motor with a hollow output shaft, and the connecting rod 10 passes through the output shaft of the hollow structure and is fixedly connected to the motor, and the output shaft of the hollow structure is fixedly connected to the inner wall of the dust collecting ring 12, so that when the driving mechanism 11 is triggered, the dust collecting ring 12 can be synchronously driven to rotate accordingly, and a group of positive electrode ring groups 13 of local annular structure are respectively provided on both sides of the outer surface of the connecting rod 10, and a carbon ring 14 is provided on the outer surface of the positive electrode ring group 13 to contact the inner wall of the dust collecting ring 12, and then under the action of the positive electrode ring group 13 and the carbon ring 14, the outer surface of the dust collecting ring 12 can be forced to carry positive charge to capture dust particles carrying negative charge; A dust collecting ring 12 located on the periphery of the driving mechanism 11 is transmission-connected to the output shaft of the driving mechanism 11. One side of the outer surface of the dust collecting ring 12 is located in the inner cavity of the outer box body 1, and the other side of the outer surface of the dust collecting ring 12 is located in the inner cavity of the dust collecting chamber 2. Therefore, under the driving action of the driving mechanism 11, the dust collecting ring 12 can be driven to rotate, and the dust particles captured on the outer surface of the dust collecting ring 12 can be transferred from the inner cavity of the outer box body 1 to the inner cavity of the dust collecting chamber 2.

[0016] like Figure 2 , Figure 4 As shown, in the present technical solution, the outer surface of the dust collecting ring 12 is divided into several areas by its internal insulating strips, and the negative electrode ring group 15 with a partial annular structure staggered from the positive electrode ring group 13 is fixedly installed on both sides of the outer surface of the positive electrode ring group 13, so as to neutralize the positive charge on a certain area of ​​the dust collecting ring 12 that rotates to contact with the negative electrode ring group 15, and make the dust particles captured thereon easier to be scraped off.

[0017] like Figure 2 , Figure 4 As shown, in the present technical solution, the left dust collecting ring 12 rotates counterclockwise under the driving action of the driving mechanism 11, while the right dust collecting ring 12 rotates clockwise under the driving action of the driving mechanism 11 thereon.

[0018] like Figure 1 , Figure 2 as well as Figure 4 As shown, in the present technical scheme, a piston member 6 is provided at the top of the dust collecting chamber 2, and the piston member 6 is transmission-connected to the top of the outer box body 1 through an elastic member 8, and a sealing block 7 is fixedly installed at the bottom of the piston member 6, and the bottom of one side of the sealing block 7 is in contact with the outer surface of the dust collecting ring 12 at the initial time, and then when the flue gas treatment device is not working, the dust collecting chamber 2 can be sealed to prevent the dust particles deposited thereon from flowing back into the inner cavity of the outer box body 1 and being discharged into the atmosphere, and an inner cavity 9 is provided inside the outer box body 1, which is gap-connected with the piston member 6 and the sealing block 7, and the interior of the inner cavity 9 is filled with a full volume of gas with a large thermal expansion coefficient, and then when the flue gas treatment device is working, because the temperature of the flue gas entering the inner cavity of the outer box body 1 is relatively high, under the action of thermal expansion and contraction, the gas in the inner cavity of the inner cavity 9 expands, and forces the piston member 6 to move upward to compress the elastic member 8, so that the bottom of one side of the sealing block 7 is separated from the outer surface of the dust collecting ring 12 to ensure the normal operation of the adsorption device 3.

[0019] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waste incineration flue gas treatment device, comprising an outer box (1), wherein a group of dust collecting chambers (2) are respectively provided on both sides of the inner part of the outer box (1), and a group of end plates (5) are respectively provided on the bottom of the left and right sides of the outer surface of the outer box (1), characterized in that: A group of adsorption devices (3) are respectively provided on both sides of the middle of the inner cavity of the outer box body (1), and one side of the outer surface of the adsorption device (3) is located in the inner cavity of the outer box body (1), while the other side of the outer surface of the adsorption device (3) is located in the inner cavity of the dust collecting cavity (2). A discharge electrode plate (4) is provided in the middle of the top end of the inner cavity of the outer box body (1).

2. The waste incineration flue gas treatment equipment according to claim 1, characterized in that: The adsorption device (3) comprises a connecting rod (10) whose two ends are respectively fixedly mounted on the outer box body (1); a driving mechanism (11) is fixedly mounted in the middle of the outer surface of the connecting rod (10); an output shaft of the driving mechanism (11) is drivingly connected to a dust collecting ring (12) located outside the driving mechanism (11); a group of positive electrode ring groups (13) with a partial annular structure are respectively provided on both sides of the outer surface of the connecting rod (10); and a carbon ring (14) is provided on the outer surface of the positive electrode ring group (13) to contact the inner wall of the dust collecting ring (12).

3. The waste incineration flue gas treatment equipment according to claim 2, characterized in that: The outer surface of the dust collecting ring (12) is divided into a plurality of areas by an internal insulating strip, and a negative electrode ring group (15) having a partial annular structure and staggered with the positive electrode ring group (13) is fixedly mounted on both sides of the outer surface of the positive electrode ring group (13).

4. The waste incineration flue gas treatment equipment according to claim 3 is characterized in that: The dust collecting ring (12) on the left side rotates counterclockwise under the driving action of the driving mechanism (11), while the dust collecting ring (12) on the right side rotates clockwise under the driving action of the driving mechanism (11) above it.

5. The waste incineration flue gas treatment equipment according to claim 4, characterized in that: A piston member (6) is provided at the top end of the dust collecting chamber (2), and the piston member (6) is drivingly connected to the top end of the outer box body (1) via an elastic member (8), and a sealing block (7) is fixedly mounted at the bottom end of the piston member (6), and the bottom end of one side of the sealing block (7) is in initial contact with the outer surface of the dust collecting ring (12), and an inner cavity (9) is provided inside the outer box body (1) and is in gap communication with the piston member (6) and the sealing block (7).

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