CN110508076B - Dry type garbage fly ash multistage purification control system - Google Patents
Dry type garbage fly ash multistage purification control system Download PDFInfo
- Publication number
- CN110508076B CN110508076B CN201910695450.XA CN201910695450A CN110508076B CN 110508076 B CN110508076 B CN 110508076B CN 201910695450 A CN201910695450 A CN 201910695450A CN 110508076 B CN110508076 B CN 110508076B
- Authority
- CN
- China
- Prior art keywords
- fly ash
- smoke exhaust
- electrode
- pipe
- section
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrostatic Separation (AREA)
Abstract
The invention discloses a multi-stage purification control system for dry garbage fly ash, which comprises a smoke exhaust pipeline (1) and a fly ash purification controller (K), wherein the smoke inlet end of the smoke exhaust pipeline (1) is communicated with the top of an incinerator (2), the smoke exhaust pipeline (1) is sequentially provided with a waste heat collecting pipe section (Y) and a fly ash collecting pipe section (F) along the smoke exhaust direction, an electrode purification module is arranged in the fly ash collecting pipe section (F), the electrode purification module is connected with a fly ash accumulation detection module, and the fly ash accumulation detection module is connected with the fly ash accumulation detection end of the fly ash purification controller (K); the end part of the smoke inlet end of the smoke exhaust pipeline (1) is also provided with a bypass pipeline (3), and an air outlet of the bypass pipeline (3) is communicated with the front end of the fly ash collecting pipe section (F). Has the advantages that: real-time detection, gathering and ash removal, good effect, clean discharged flue gas and accordance with the standard.
Description
Technical Field
The invention relates to the technical field of waste incineration tail gas treatment, in particular to a dry type waste fly ash multistage purification control system.
Background
At present, the popularization of garbage classification treatment is not realized in China. In the prior art, when a waste incineration power station treats waste, the general flow is as follows: all the garbage is carried to a garbage pool by a garbage truck, and is sent to an incinerator for incineration and power generation after long-time accumulation and fermentation and most of moisture filtration.
In the prior art, the garbage is directly incinerated without being classified, so that the garbage contains recoverable garbage, dry garbage, wet garbage, harmful garbage and the like. In the incinerated fly ash, the components are complex and the toxic and harmful components are high. And most of the fly ash particles have a particle size of 1-100 μm, and the fly ash is collected and treated by an electrostatic dust collector, a bag-type dust collector and a wet dust collector.
However, in the waste incineration power plant, most of the waste used for the waste incineration treatment is dry waste after the waste classification treatment. In the process of burning dry garbage, because the content of toilet paper is high, the fly ash contains a large amount of paper dust, compared with the existing fly ash, the fly ash particles after classification treatment are more and are easy to adhere, and the particle size is larger and more; and the particles are light and not easy to handle. However, in dry garbage, there is often a portion of water, which is evaporated by combustion and carried along with the paper dust and fly ash to be discharged along with the flue. In the discharging process, after the multi-stage heat exchange cooling, the water vapor and the paper dust fly ash are adhered and are attached to the flue, so that the flue cannot be cleaned and blocked. And in the dry garbage, a large amount of low-grade plastics are included, after incineration, a large amount of toxic gas is generated, and when the toxic gas is discharged along with water vapor and paper dust flying dust, the toxic gas is adsorbed by the paper dust and is adhered to the inner wall of the flue, so that when the tail gas is detected and treated in real time, although the discharged tail gas meets the emission regulations, in the real-time detection process, the detection indexes are still high, the detection system is caused to make mistakes, and the emission standard cannot be reached.
Based on the above special defects, a research team needs to provide a garbage flying dust and tail gas treatment system based on garbage classification treatment to overcome the defects of classification combustion treatment.
Disclosure of Invention
Aiming at the problems, the invention provides a multi-stage purification control system for dry garbage fly ash, wherein an electrode purification module is arranged on a fly ash collecting pipe section to realize fly ash accumulation detection. When the fly ash is adhered to the smoke exhaust pipeline, the smoke discharged from the incinerator is directly transmitted to the fly ash collecting pipe section by arranging the bypass pipeline, and the fly ash adhered to the smoke exhaust pipeline is heated by hot gas to fall off, and is discharged under the action of strong smoke blowing.
In order to achieve the purpose, the invention adopts the following specific technical scheme:
the utility model provides a multistage purification control system of dry type rubbish flying dust, includes smoke exhaust pipe and flying dust purification controller, this smoke exhaust pipe advance the cigarette end with burn burning furnace top intercommunication, this smoke exhaust pipe sets gradually to waste heat collection pipeline section and flying dust collection pipeline section along the direction of discharging fume, its key technology lies in: at least two sections of fly ash collecting sections are sequentially arranged along the fly ash collecting pipe section; the fly ash collecting section comprises a fly ash decelerating section and a fly ash gathering and recovering section, and an electrode purifying module is arranged in the fly ash collecting pipe section and is used for performing deceleration control on fly ash in a flue in the fly ash decelerating section and gathering and recovering the fly ash passing through the fly ash gathering and recovering section; the electrode purification module is connected with the purification control end of the fly ash purification controller; the electrode purification module is connected with a fly ash accumulation detection module, and the fly ash accumulation detection module is connected with a fly ash accumulation detection end of the fly ash purification controller; the end part of the smoke inlet end of the smoke exhaust pipeline is also provided with a bypass pipeline, an air outlet of the bypass pipeline is communicated with the front end of the fly ash collecting pipe section, a bypass main valve is arranged on the bypass pipeline and is connected with a first valve control end of the fly ash purification controller, and the bypass pipeline is used for directly transmitting the smoke discharged by the incinerator to the fly ash collecting pipe section and heating the fly ash adhered to the smoke exhaust pipeline so as to enable the fly ash to fall off.
Through the design, the fly ash collecting pipe section is provided with the electrode purification module, so that fly ash accumulation detection is realized. When the flying ash is adhered to the smoke exhaust pipeline, the smoke discharged from the incinerator is directly transmitted to the ash collecting pipe section by arranging the bypass pipeline, and the flying ash adhered to the smoke exhaust pipeline is heated by hot gas to fall off and is discharged under the action of strong smoke blowing.
And the fly ash purification controller is combined to realize real-time control of a bypass main valve arranged on the bypass pipeline, so that the opening and closing of hot air ventilation are realized. And meanwhile, the electrode purification module is also controlled and is used for carrying out deceleration control on the fly ash in the flue at the fly ash deceleration section and carrying out aggregation and recovery on the fly ash passing through the fly ash aggregation recovery section.
Further described, the electrode purification module comprises two sets of electrode groups and a pair of electrode plates; the two groups of electrode groups are arranged on the inner wall of a smoke exhaust pipeline where the fly ash collecting pipe section is located, each group of electrode group is provided with N electrodes, the electrodes of the two groups of electrode groups are alternately arranged, two adjacent electrodes are parallel to each other and have equal distance, the plane where each electrode is located is vertical to the extension direction of the smoke exhaust pipeline, each group of electrode groups is correspondingly connected with a phase power supply, and each phase power supply is connected with one power supply output end of the fly ash purification controller and is used for adjusting the power supply voltage and the phase difference of the output end; the pair of electrode plates are arranged on the outer wall of the smoke exhaust pipeline where the fly ash collecting pipe section is located, the direction of an electric field generated by the pair of electrode plates is parallel to the gravity direction of the smoke exhaust pipeline, and the electrode plates are respectively connected with the positive output end and the negative output end of the electrode plate of the fly ash purification controller.
By adopting the scheme, the electrode is arranged on the inner wall of the smoke exhaust pipeline, when the fly ash adhered to the inner wall of the smoke exhaust pipeline is different, the resistance of the electrode can be changed accordingly, under the power supply of the same voltage power supply, the real-time current of the electrode is detected and compared with the current of the electrode when the inner wall of the smoke exhaust pipeline is in a clean state, so that whether the fly ash is adhered to the electrode or not can be judged, and whether the inner wall of the smoke exhaust pipeline is clean or not can be obtained. Meanwhile, the N parallel electrodes with equal distance are arranged on the inner wall of the smoke exhaust pipeline, so that an even electric field is formed in the smoke exhaust pipeline, and the direction of the electric field faces to the same direction. Because the fly ash is a tiny particle, under the action of an electric field, the fly ash is subjected to a force along one direction after being subjected to induction charging. In order to achieve the purpose of reducing the speed of the fly ash, after the electric field is applied, the acting force of the electric field on the fly ash is opposite to the exhaust direction of the flue gas.
And the two electrode plates are combined and arranged at the two sides of the smoke exhaust pipeline, the direction of an electric field of the two electrode plates is parallel to the gravity action line of the pipeline, the flying dust particles are driven to move downwards under the action of the electric field generated by the two electrode plates, and the distance and time for the flying dust particles to fall to the bottom of the pipeline can be shortened under the action of deceleration and downward acting force. Wherein, the cross section of the electrode plate is arc-shaped and clings to the upper and lower outer walls of the smoke exhaust pipeline.
The further technical scheme is as follows: the pipe wall at the bottom of the smoke exhaust pipeline, where the fly ash gathering and recovering section is located, gradually expands from the front end to the rear end along the radial direction to form a diversion trench, a fly ash collecting port is formed in the smoke exhaust pipeline, where the tail end of the diversion trench is located, and a fly ash collecting device is installed at the fly ash collecting port;
the inner wall of the smoke exhaust pipeline at the fly ash collecting port is also provided with a fly ash filter screen, the windward surface of the fly ash filter screen faces the fly ash deceleration section, the fly ash filter screen is fixed on a reverse purging branch pipe, the air outlet of the reverse purging branch pipe is embedded on the leeward surface of the fly ash filter screen, and the reverse purging branch pipe is communicated with the bypass pipeline.
By adopting the scheme, the fly ash is slowly gathered at the lower part of the flue under the action of the two electric fields, and moves along the diversion trench under the action of the flue gas, so as to fall into the fly ash collecting device. And in order to further isolate the fly ash, a fly ash filter screen is arranged on the inner wall of the smoke exhaust pipeline at the fly ash collecting opening, so that the fly ash is further isolated. The fly ash blocked on the fly ash filter screen falls into the fly ash collecting port under the action of the electric field and the gravity, and is collected by the fly ash collecting device. In order to prevent the fly ash filter screen from being completely blocked, the fly ash filter screen is fixed on the back-blowing branch pipe, and after the fly ash filter screen is used for a period of time, the back-blowing branch pipe is added with a back-blowing scavenging body to realize back-blowing and back-blowing, and accumulated ash accumulated on the fly ash filter screen is emptied.
The fly ash collecting device comprises a shell and an ash hopper arranged at the lower part of the shell, wherein an ash receiving port is formed at the upper part of the shell and is opposite to the fly ash collecting port; a roller is arranged in the shell and is opposite to the ash receiving port; the roller comprises a hollow cylindrical roller bracket and a roller shell covering the outside of the roller bracket, the roller bracket is connected with a roller driving motor through a roller driving rod, and the roller driving motor is connected with a rotating speed control end of the fly ash purification controller through a frequency converter; the fly ash purification controller is characterized in that an electrode cavity is formed in the roller support, a support frame penetrates through the electrode cavity, the roller rotates relative to the support frame, an electrostatic generator is fixedly arranged on the support frame and arranged right below the ash receiving port, an electric field generated by the electrostatic generator is distributed in a direction and penetrates through the ash receiving port, and the electrostatic generator is connected with an electrostatic voltage control output end of the fly ash purification controller.
By adopting the scheme, the ash receiving port is opposite to the fly ash collecting port, and the garbage fly ash can just fall on the roller after falling into the ash receiving port from the fly ash collecting port. And the roller rotates in real time to drive the fly ash to fall into the ash bucket. The fly ash is adsorbed at the ash receiving port by combining with the electrostatic generator, and when the fly ash is driven by the roller to rotate away from the ash receiving port, the adsorption acting force disappears, and the fly ash automatically falls down. The electrostatic force of the electrostatic generator can be automatically adjusted by the fly ash purification controller.
Describing still further, the last fly ash collecting section in the fly ash collecting pipe sections is a tail end fly ash collecting section, the rear end of the tail end fly ash collecting section is also provided with a fly ash backflow section, the inner wall of the smoke exhaust pipeline where the fly ash backflow section is located is provided with two groups of reverse electrodes, each group of reverse electrodes is respectively provided with M reverse electrodes, the reverse electrodes of the two groups of reverse electrodes are alternately arranged, two adjacent reverse electrodes are parallel to each other and have equal distance, the plane where each reverse electrode is located is vertical to the extending direction of the smoke exhaust pipeline, and each group of reverse electrodes is correspondingly connected with a reverse power supply; the distance between two adjacent counter electrodes is smaller than the distance between two adjacent electrodes; the reverse supply voltage of the counter electrode is greater than the supply voltage of the electrode; the outer wall of the smoke exhaust pipeline where the fly ash backflow section is located is also provided with a pair of reverse electrode plates, and the direction of an electric field generated by the pair of reverse electrode plates is parallel to the gravity direction of the smoke exhaust pipeline; the pipe wall of the bottom of the smoke exhaust pipeline where the fly ash backflow section is located is provided with a backflow groove, the pipe wall where the backflow groove is located gradually expands from the rear end to the front end of the smoke exhaust pipeline along the radial direction, and the backflow notch of the backflow groove faces the fly ash collecting port; the reverse power supply is connected with the reverse power supply control end of the fly ash purification controller, and the reverse electrode plate is respectively connected with the positive output end and the negative output end of the reverse electrode plate of the fly ash purification controller.
By adopting the scheme, the last section of the fly ash collecting section is set as the tail end fly ash collecting section, M reverse electrodes are arranged in the same way, the M reverse electrodes are closer to each other, the reverse voltage is larger, and the electric field action is larger. The fly ash which has not been removed can be treated in a final stage in a final step. Because most of the remaining fly ash in the last section is micro particles, the fly ash can reversely run under the action of the super large reverse electric field and fall into the fly ash collecting port of the tail end fly ash collecting section along with the backflow groove, so that the fly ash is collected by the fly ash collecting device.
The fly ash collecting port is integrally in an inverted frustum shape, a reciprocating purging port is formed in the side wall of the fly ash collecting port and is connected with a purging end of a reciprocating purging main pipe, a reciprocating filter screen is arranged at the reciprocating purging port, and an air outlet of the reciprocating purging main pipe is communicated with the rear end of the fly ash collecting pipe section; the reciprocating purging main pipe is also provided with a reciprocating purging branch pipe, and one end of the reciprocating purging branch pipe, which is far away from the reciprocating purging main pipe, is communicated with the side wall of the smoke exhaust pipeline, which is far away from the fly ash collecting port; the reciprocating purging main pipe is provided with an air outlet main valve and a reciprocating purging control valve, the reciprocating purging branch pipe is arranged between the air outlet main valve and the reciprocating purging control valve, and the reciprocating purging branch pipe is provided with an air inlet valve; the air outlet main valve is connected with a second valve control end of the fly ash purification controller; the reciprocating purging control valve is connected with a third valve control end of the fly ash purification controller; and the air inlet valve is connected with the control end of a fourth valve of the fly ash purification controller.
By adopting the scheme, the reciprocating purging main pipe is arranged at the fly ash collecting port, and a flue gas channel can be formed by opening the air outlet main valve and the reciprocating purging control valve. Under the action of the flue gas channel, the fly ash can more easily fall into the fly ash collecting port, thereby realizing the fly ash collection. After a flue gas channel is formed for a period of time, the fly ash purification controller controls to close the air outlet main valve and open the air inlet valve, and the flue gas at the front end of the fly ash collecting port is blown into the fly ash collecting port from the reciprocating blowing port through the reciprocating blowing main pipe, so that reverse blowing is realized. Because the gas port at the front end of the collection is collected from the upper part of the smoke exhaust pipeline during the back purging, the fly ash is less at the part, and the cleaning effect on the reciprocating filter screen can be realized during the purging. The reciprocating filter screen has smaller meshes, so that the flowing fly ash is smaller and the smoke gas flow is also smaller. Even when the dust collector is circulated, a large amount of fly ash can not flow out. And the purging time is controlled in real time, and the valve switch is also controlled in real time.
According to a further technical scheme, a bypass heating control valve is further arranged on the bypass pipeline, a filtering branch pipe is further arranged between the bypass main valve and the bypass heating control valve and is connected with a back-flushing header pipe, at least two back-flushing branch pipes are arranged on the back-flushing header pipe, and the back-flushing branch pipes respectively supply air to the fly ash filter screen correspondingly; the reverse purging main pipe is also provided with an air supply pressurizing pump, and the reverse purging branch pipes are provided with a reverse purging control valve;
the bypass heating control valve is connected with a fifth valve control end of the fly ash purification controller; and all the back flushing control valves are respectively and correspondingly connected with the back flushing control ends of the fly ash purification controllers.
By adopting the scheme, the back-flushing branch pipes supply air to all the fly ash filter screens, and reverse flushing and cleaning are realized. And in order to increase the blowing force, an air supply pressure pump is additionally arranged on the back blowing main pipe to increase the back blowing force. And in order to clean the fly ash, a filter branch pipe is arranged between the bypass main valve and the bypass heating control valve to filter the fly ash. And the fly ash purification controller is combined to control the opening and closing of the valve, so that the filter branch pipe can be reversely blown under the action of the air supply pressure pump, and the self-cleaning effect is achieved.
The fly ash accumulation detection module comprises an electrode current calculation module, wherein the electrode current value is equal to a power supply voltage value divided by the resistance value of each electrode, and the electrode resistance value changes along with the change of the fly ash accumulation amount on the inner wall of the smoke exhaust pipeline.
And monitoring the fly ash accumulation amount of the inner wall of the smoke exhaust pipeline in real time by detecting the change condition of the current value of the electrode.
The fly ash purification controller is characterized in that a flow velocity sensor is arranged at the front end of the fly ash collecting pipe section and connected with a smoke discharge flow velocity detection end of the fly ash purification controller.
The flow velocity sensor is adopted to realize the flow velocity detection of the fly ash in the flue, so that the power supply voltage of the parallel electrode and the electrode plate in the fly ash collecting section is controlled, and the self-adaptive flow velocity control, the gathering and collection and the like of the fly ash are realized.
A water cleaning fly ash device is also arranged on the smoke exhaust pipeline at the rear end of the fly ash collecting pipe section, the water cleaning fly ash device comprises a sealed cleaning water tank, a smoke exhaust inlet and a smoke exhaust outlet are formed in the cleaning water tank, the rear end of the fly ash collecting pipe section extends into the water surface of the cleaning water tank through the smoke exhaust inlet, and smoke of the smoke exhaust pipeline is exhausted from the smoke exhaust outlet; the ash residue cleaning device is characterized in that x ash residue drainage covers are vertically arranged in the cleaning water tank, the ash residue drainage covers are integrally conical, the conical bottoms of the ash residue drainage covers face the bottom of the cleaning water tank, and a water outlet pipe is connected to the tops of the ash residue drainage cover covers and is communicated with the inside of the ash residue drainage cover covers; a water inlet pipe and a water outlet main pipe are also arranged in the cleaning water tank, and all the water outlet pipes are communicated with the water outlet main pipe; the bottom of the cleaning water tank is also provided with x air supply heads which are connected with the same air supply pipe, and the x air supply heads are fixedly arranged under the orthographic projection of the x ash drainage covers in a one-to-one correspondence manner.
By adopting the scheme, the water washing fly ash device washes the gas to be discharged for removing the residual fly ash in the gas. Wherein the smoke gas is from the smoke exhaust inlet to the position below the water surface of the cleaning water tank, and the smoke gas floats upwards under the action of buoyancy after being washed and is discharged from the smoke exhaust outlet. After falling into water, the ash falls into the bottom of the cleaning water tank along the ash drainage cover or gradually settles.
Air is fed into the air feeding head, and under the action of the air, the air bubbles carry ash slag to enter the drainage cover along the airflow direction and are discharged along the water outlet main pipe. The ash and slag at the bottom of the cleaning water tank are completely discharged, no sediment is generated, and the flue gas cleaning is realized.
The invention has the beneficial effects that: aiming at the phenomenon that most of combustible garbage in dry garbage is soluble waste paper, the conventional fly ash cleaning system is improved. The fly ash is gathered under the action of an electric field, and the fly ash collection is realized by arranging the fly ash collecting device, so that the discharge of polluted air is prevented. And a water cleaning fly ash device is additionally arranged at the tail part of the flue to clean fine fly ash which is difficult to gather. And through introducing air to the washing water tank bottom constantly, under bubble and rivers effect, drive the lime-ash of washing water tank bottom and move along with the rivers together to the drain water tank.
Drawings
FIG. 1 is a system block diagram of the present invention;
FIG. 2 is an enlarged schematic view of A in FIG. 1;
FIG. 3 is a view of the construction of the drum mounting of the present invention;
FIG. 4 is a schematic view of the installation of a fly ash screen;
FIG. 5 is an enlarged schematic view of B of FIG. 1;
FIG. 6 is a top view of the water wash flyer;
FIG. 7 is a control block diagram of the present invention;
FIG. 8 is a schematic illustration of a bypass duct hot gas supply;
FIG. 9 is a schematic view of the hot air supply and distribution of the bypass duct and the back flushing of the fly ash filter screen;
FIG. 10 is a schematic view of the back flushing of the hot gas fly ash filter screen of the bypass duct;
FIG. 11 is a schematic of a filter leg back purge.
Detailed Description
The following provides a more detailed description of the embodiments and the operation of the present invention with reference to the accompanying drawings.
As can be seen from fig. 1, a multi-stage purification control system for dry garbage fly ash comprises a smoke exhaust pipeline 1 and a fly ash purification controller K, wherein the smoke inlet end of the smoke exhaust pipeline 1 is communicated with the top of an incinerator 2, the smoke exhaust pipeline 1 is sequentially provided with a waste heat collecting pipe section Y and a fly ash collecting pipe section F along the smoke exhaust direction, and at least two sections of fly ash collecting sections are sequentially arranged along the fly ash collecting pipe section F; the fly ash collecting section comprises a fly ash decelerating section and a fly ash gathering and recovering section, and an electrode purifying module is arranged in the fly ash collecting pipe section F and is used for performing deceleration control on fly ash in a flue in the fly ash decelerating section and gathering and recovering the fly ash passing through the fly ash gathering and recovering section; the electrode purification module is connected with a purification control end of the fly ash purification controller K;
the electrode purification module is connected with a fly ash accumulation detection module, and the fly ash accumulation detection module is connected with a fly ash accumulation detection end of the fly ash purification controller K;
the end part of the smoke inlet end of the smoke exhaust pipeline 1 is also provided with a bypass pipeline 3, the air outlet of the bypass pipeline 3 is communicated with the front end of the fly ash collecting pipe section F, a bypass main valve 31 is arranged on the bypass pipeline 3, the bypass main valve 31 is connected with the first valve control end of the fly ash purification controller K, and the bypass pipeline 3 is used for directly transmitting the smoke discharged by the incinerator 2 to the fly ash collecting pipe section F to heat the fly ash adhered on the smoke exhaust pipeline 1 so as to enable the fly ash to fall off.
As can be seen from fig. 8 and fig. 1, a bypass heating control valve 32 is further disposed on the bypass pipeline 3, a filtering branch pipe 35 is further disposed between the bypass main valve 31 and the bypass heating control valve 32, the filtering branch pipe is connected to the back-blowing main pipe 36, at least two back-blowing branch pipes 37 are disposed on the back-blowing main pipe, and the back-blowing branch pipes respectively supply air to the fly ash filter screen 5;
the front end of the back flushing header pipe is also provided with an air supply pressurizing pump 33, and the back flushing branch pipes are provided with back flushing control valves;
the bypass heating control valve 32 is connected with the fifth valve control end of the fly ash purification controller K;
all the back-purging control valves 34 are respectively and correspondingly connected with the back-purging control ends of the fly ash purification controller K.
As can be seen from fig. 8, when the bypass main valve 31 and the bypass heating control valve 32 are opened, and all the back-flushing control valves 34 are closed, the bypass pipe 3 directly transmits the flue gas discharged from the incinerator 2 to the ash collecting pipe section F, and heats the fly ash adhered to the smoke exhaust pipe 1, so that the fly ash falls off.
As can be seen from fig. 9, when the bypass main valve 31, the bypass heating control valve 32 and all the back-flushing control valves 34 are opened, the bypass pipe 3 directly transmits the flue gas discharged from the incinerator 2 to the ash collecting pipe section F, and heats the fly ash adhered to the smoke exhaust pipe 1, so that the fly ash falls off. And the fly ash filter screen 5 is reversely swept by the flue gas.
As can be seen from FIG. 10, when the bypass main valve 31, all the back-flushing control valves 34 are opened, and the bypass heating control valve 32 is closed, the flue gas only performs back-flushing on the fly ash filter screen 5.
As can be seen from fig. 11, when the bypass main valve 31 is opened, the supply air pressurizing pump 33 is started, the bypass heating control valve 32 and all the back-purging control valves 34 are closed, and the supply air pressurizing pump 33 performs back-purging on the filter branch pipes.
As can also be seen in conjunction with fig. 1, the electrode purification module includes two sets of electrode sets and a pair of electrode plates J2;
the two groups of electrode groups are arranged on the inner wall of the smoke exhaust pipeline 1 where the fly ash collecting pipe section F is located, each group of electrode group is provided with N electrodes J1 respectively, the electrodes of the two groups of electrode groups are arranged alternately, two adjacent electrodes are parallel to each other and have equal distance, the plane where each electrode J1 is located is vertical to the extending direction of the smoke exhaust pipeline 1, each group of electrode groups is correspondingly connected with a phase power supply, and each phase power supply is connected with one power supply output end of the fly ash purification controller K and is used for adjusting the voltage and the phase difference of the power supply at the output end;
in this embodiment, N is an even number, and the size of N is set according to the length of the smoke exhaust duct 1. In FIG. 1, for illustration, 8 fly ash collecting sections are set, and in actual production, the fly ash collecting sections F of the smoke exhaust pipeline 1 are generally installed at intervals of 10-20cm when the lengths of the fly ash collecting sections F are several meters.
As can be seen from fig. 1, a pair of the electrode plates J2 is disposed on the outer wall of the smoke exhaust duct 1 where the fly ash collecting pipe section F is located, the direction of the electric field generated by the pair of the electrode plates J2 is parallel to the direction of gravity of the smoke exhaust duct 1, and the electrode plates J2 are respectively connected to the positive output end and the negative output end of the electrode plate of the fly ash purification controller K.
As can be seen from fig. 1 and fig. 2, the bottom wall of the smoke exhaust pipe 1 where the fly ash collecting and recovering section is located gradually expands from the front end to the rear end along the radial direction to form a diversion trench, the smoke exhaust pipe 1 where the tail end of the diversion trench is located is provided with a fly ash collecting port, and the fly ash collecting port is provided with a fly ash collecting device 4;
the inner wall of the smoke exhaust pipeline 1 at the fly ash collecting opening is also provided with a fly ash filter screen 5, the windward side of the fly ash filter screen 5 faces the fly ash deceleration section, the fly ash filter screen is fixed on a reverse blowing branch pipe, the air outlet of the reverse blowing branch pipe is embedded on the leeward side of the fly ash filter screen 5, and the reverse blowing branch pipe is communicated with the bypass pipeline 3.
As can be seen from fig. 2 and 3, the fly ash collecting device 4 comprises a housing 41 and an ash hopper 42 arranged at the lower part of the housing 41, and an ash receiving opening is opened at the upper part of the housing 41 and is opposite to the fly ash collecting opening; a roller 43 is arranged in the shell 41, and the roller 43 is opposite to the ash receiving port; the roller 43 comprises a hollow cylindrical roller bracket and a roller shell covering the outside of the roller bracket, the roller bracket is connected with a roller driving motor 44 through a roller driving rod, and the roller driving motor 44 is connected with the rotating speed control end of the fly ash purification controller K through a frequency converter; an electrode cavity is formed in the roller support, a support frame 46 penetrates through the electrode cavity, the roller 43 rotates relative to the support frame 46, an electrostatic generator 45 is fixedly arranged on the support frame 46, the electrostatic generator 45 is arranged right below the ash receiving port, an electric field generated by the electrostatic generator 45 is distributed in the direction and penetrates through the ash receiving port, and the electrostatic generator 45 is connected with an electrostatic voltage control output end of the fly ash purification controller K.
As can also be seen from fig. 1, the last fly ash collecting section in the fly ash collecting pipe sections F is a tail end fly ash collecting section, the rear end of the tail end fly ash collecting section is also provided with a fly ash return section, the inner wall of the smoke exhaust pipeline 1 where the fly ash return section is located is provided with two sets of reverse electrode groups, each set of reverse electrode group is respectively provided with M reverse electrodes J3, the reverse electrodes of the two sets of reverse electrode groups are alternately arranged, two adjacent reverse electrodes are parallel to each other and have equal distances, the plane where each reverse electrode J3 is located is perpendicular to the extending direction of the smoke exhaust pipeline 1, and each set of reverse electrode groups is correspondingly connected with a reverse power supply;
the distance between two adjacent counter electrodes J3 is smaller than the distance between two adjacent electrodes J1; in this embodiment, M is an even number, and in the actual set installation, the distance between adjacent electrodes is between 5 and 10 cm.
The reverse supply voltage of the counter electrode J3 is greater than the supply voltage of the electrode J1;
the outer wall of the smoke exhaust pipeline 1 where the fly ash backflow section is located is also provided with a pair of reverse electrode plates J4, and the direction of an electric field generated by the pair of reverse electrode plates is parallel to the gravity direction of the smoke exhaust pipeline 1;
as can also be seen from fig. 1, the pipe wall at the bottom of the smoke exhaust pipe 1 where the fly ash backflow segment is located is provided with a backflow groove, the pipe wall where the backflow groove is located gradually expands from the rear end to the front end along the radial direction of the smoke exhaust pipe 1, and the backflow notch of the backflow groove faces the fly ash collection port; the reverse power supply is connected with the reverse power supply control end of the fly ash purification controller K, and the reverse electrode plate J4 is respectively connected with the positive output end and the negative output end of the reverse electrode plate of the fly ash purification controller K.
As can also be seen from fig. 2, the whole fly ash collecting port is in the shape of an inverted frustum, a reciprocating purging port is formed in the side wall of the fly ash collecting port, the reciprocating purging port is connected with a purging end of a reciprocating purging header pipe 61, a reciprocating filter screen 62 is arranged at the reciprocating purging port, and an air outlet of the reciprocating purging header pipe 61 is communicated with the rear end of the fly ash collecting pipe section F;
the reciprocating purging main pipe 61 is also provided with a reciprocating purging branch pipe 66, and one end of the reciprocating purging branch pipe 66, which is far away from the reciprocating purging main pipe 61, is communicated with the side wall of the smoke exhaust pipeline 1, which is far away from the fly ash collecting port;
the reciprocating purging main pipe 61 is provided with an air outlet main valve 63 and a reciprocating purging control valve 64, the reciprocating purging branch pipe 66 is arranged between the air outlet main valve 63 and the reciprocating purging control valve 64, and the reciprocating purging branch pipe 66 is provided with an air inlet valve 65;
the air main valve 63 is connected with the second valve control end of the fly ash purification controller K;
the reciprocating purging control valve 64 is connected with the third valve control end of the fly ash purification controller K;
the air inlet valve 65 is connected with the fourth valve control end of the fly ash purification controller K.
When the main air outlet valve 63 and the reciprocating purging control valve 64 are opened, the air inlet valve 65 is closed; the flue gas enters the reciprocating blowing header pipe 61 from the reciprocating blowing port and is blown out from the rear end of the fly ash collecting pipe section F;
when the reciprocating purging control valve 64 and the air inlet valve 65 are opened, the air outlet main valve 63 is closed; flue gas enters from the reciprocating purging branch pipe 66 and is blown out from the reciprocating purging port of the reciprocating purging header pipe 61, and the reciprocating purging is performed on the reciprocating filtering net 62 of the reciprocating purging port.
In this embodiment, the fly ash accumulation detection module includes an electrode current calculation module, the electrode current value is equal to the power voltage value divided by each electrode resistance value, and the electrode resistance value changes with the change of the fly ash accumulation amount on the inner wall of the smoke exhaust duct 1.
As can be seen from fig. 1 and 7, a flow sensor 7 is disposed at the front end of the fly ash collecting pipe section F, and the flow sensor 7 is connected to the flue gas flow rate detection end of the fly ash purification controller K.
As can be seen from fig. 5, fig. 1 and fig. 6, a water cleaning fly ash device S is further disposed on the smoke exhaust duct 1 at the rear end of the fly ash collecting pipe section F, the water cleaning fly ash device includes a sealed cleaning water tank S1, a smoke exhaust inlet and a smoke exhaust outlet are disposed on the cleaning water tank S1, the rear end of the fly ash collecting pipe section F extends into the water below the water surface of the cleaning water tank S1 through the smoke exhaust inlet, and the smoke of the smoke exhaust duct 1 is exhausted from the smoke exhaust outlet;
the inside of the cleaning water tank S1 is vertically provided with 14 ash drainage hoods S2, and in figure 6, two ash drainage hoods S2 are covered.
The ash residue drainage cover S2 is conical as a whole, the conical bottom of the ash residue drainage cover S2 faces the bottom of the cleaning water tank S1, the top of the ash residue drainage cover S2 is connected with a water outlet pipe S3, and the water outlet pipe S3 is communicated with the interior of the ash residue drainage cover S2;
a water inlet pipe S7 and a water outlet header pipe S4 are further arranged in the cleaning water tank S1, and all the water outlet pipes S3 are communicated with the water outlet header pipe S4;
the bottom of the cleaning water tank S1 is also provided with x air feeding heads S5, the x air feeding heads S5 are connected with the same air feeding pipe S6, and the x air feeding heads S5 are fixedly arranged under the orthographic projection of the x ash drainage covers S2 in a one-to-one correspondence manner. In this embodiment, x is 14.
In this embodiment, an air feed pump is further connected to the air feed pipe S6, and an intake pump is attached to the intake pipe S7. A water outlet pump is arranged at the tail end of the water outlet main pipe S4. The air supply pump, the water inlet pump and the water outlet pump are respectively connected with the fly ash purification controller K.
It should be noted that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make variations, modifications, additions or substitutions within the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a multistage purification control system of dry type rubbish flying dust, includes smoke exhaust pipe (1) and flying dust purification control ware (K), this smoke exhaust pipe (1) advance the cigarette end and burn burning furnace (2) top intercommunication, this smoke exhaust pipe (1) sets gradually to waste heat collecting pipe section (Y) and flying dust collecting pipe section (F) along the direction of discharging fume, its characterized in that: at least two sections of fly ash collecting sections are sequentially arranged along the fly ash collecting pipe section (F); the fly ash collecting section comprises a fly ash decelerating section and a fly ash gathering and recovering section, and an electrode purifying module is arranged in the fly ash collecting pipe section (F) and is used for performing deceleration control on fly ash in a flue in the fly ash decelerating section and gathering and recovering the fly ash passing through the fly ash gathering and recovering section; the electrode purification module is connected with the purification control end of the fly ash purification controller (K);
the electrode purification module is connected with a fly ash accumulation detection module, and the fly ash accumulation detection module is connected with a fly ash accumulation detection end of the fly ash purification controller (K);
the end part of the smoke inlet end of the smoke exhaust pipeline (1) is also provided with a bypass pipeline (3), an air outlet of the bypass pipeline (3) is communicated with the front end of the fly ash collecting pipe section (F), a bypass main valve (31) is arranged on the bypass pipeline (3), the bypass main valve (31) is connected with a first valve control end of the fly ash purification controller (K), and the bypass pipeline (3) is used for directly transmitting smoke exhausted by the incinerator (2) to the fly ash collecting pipe section (F) and heating fly ash adhered to the smoke exhaust pipeline (1) to enable the fly ash to fall off.
2. The dry type garbage fly ash multistage purification control system according to claim 1, wherein: the electrode purification module comprises two groups of electrode groups and a pair of electrode plates (J2);
the two groups of electrode groups are arranged on the inner wall of a smoke exhaust pipeline (1) where the fly ash collecting pipe section (F) is located, each group of electrode group is provided with N electrodes (J1), the electrodes of the two groups of electrode groups are alternately arranged, two adjacent electrodes are parallel to each other and have equal distance, the plane where each electrode (J1) is located is perpendicular to the extending direction of the smoke exhaust pipeline (1), each group of electrode groups is correspondingly connected with a phase power supply, and each phase power supply is connected with one power supply output end of the fly ash purification controller (K) and is used for adjusting the voltage and the phase difference of the power supply at the output end;
the pair of electrode plates (J2) is arranged on the outer wall of the smoke exhaust pipeline (1) where the fly ash collecting pipe section (F) is located, the direction of an electric field generated by the pair of electrode plates (J2) is parallel to the gravity direction of the smoke exhaust pipeline (1), and the electrode plates (J2) are respectively connected with the positive output end and the negative output end of the electrode plates of the fly ash purification controller (K).
3. The dry type garbage fly ash multistage purification control system according to claim 2, wherein: the pipe wall at the bottom of the smoke exhaust pipeline (1) where the fly ash gathering and recovering section is located gradually expands from the front end to the rear end along the radial direction to form a diversion trench, a fly ash collecting port is formed in the smoke exhaust pipeline (1) where the tail end of the diversion trench is located, and a fly ash collecting device (4) is installed at the fly ash collecting port;
the inner wall of the smoke exhaust pipeline (1) at the fly ash collecting port is also provided with a fly ash filter screen (5), the windward side of the fly ash filter screen (5) faces the fly ash deceleration section, the fly ash filter screen is fixed on a reverse purging branch pipe, the air outlet of the reverse purging branch pipe is embedded on the leeward side of the fly ash filter screen (5), and the reverse purging branch pipe is communicated with the bypass pipeline (3).
4. The dry type garbage fly ash multistage purification control system according to claim 3, wherein: the fly ash collecting device (4) comprises a shell (41) and an ash hopper (42) arranged at the lower part of the shell (41), wherein an ash receiving port is formed at the upper part of the shell (41), and the ash receiving port is opposite to the fly ash collecting port;
a roller (43) is arranged in the shell (41), and the roller (43) is opposite to the ash receiving port;
the roller (43) comprises a hollow cylindrical roller bracket and a roller shell covering the outside of the roller bracket, the roller bracket is connected with a roller driving motor (44) through a roller driving rod, and the roller driving motor (44) is connected with the rotating speed control end of the fly ash purification controller (K) through a frequency converter;
the inside electrode chamber that forms of cylinder support, wear to be equipped with support frame (46) in this electrode intracavity, cylinder (43) are relative support frame (46) rotate support frame (46) go up fixed static generator (45) of being provided with, this static generator (45) set up connect under the ash mouthful, and the electric field direction distribution of the production of this static generator (45) just passes connect ash mouthful department, static generator (45) with fly ash purification controller (K) electrostatic voltage control output is connected.
5. The dry type garbage fly ash multistage purification control system according to claim 4, wherein: the last fly ash collecting section in the fly ash collecting pipe section (F) is a tail end fly ash collecting section, the rear end of the tail end fly ash collecting section is also provided with a fly ash backflow section, the inner wall of a smoke exhaust pipeline (1) where the fly ash backflow section is located is provided with two groups of reverse electrodes, each group of reverse electrodes is respectively provided with M reverse electrodes (J3), the reverse electrodes of the two groups of reverse electrodes are alternately arranged, two adjacent reverse electrodes are parallel to each other and have equal distance, the plane where each reverse electrode (J3) is located is vertical to the extending direction of the smoke exhaust pipeline (1), and each group of reverse electrodes is correspondingly connected with a reverse power supply;
the distance between two adjacent counter electrodes (J3) is smaller than the distance between two adjacent electrodes (J1);
the reverse supply voltage of the counter electrode (J3) is greater than the supply voltage of the electrode (J1);
the outer wall of the smoke exhaust pipeline (1) where the fly ash backflow section is located is also provided with a pair of reverse electrode plates (J4), and the direction of an electric field generated by the pair of reverse electrode plates is parallel to the gravity direction of the smoke exhaust pipeline (1);
the pipe wall at the bottom of the smoke exhaust pipeline (1) where the fly ash backflow section is located is provided with a backflow groove, the pipe wall where the backflow groove is located gradually expands from the rear end to the front end of the smoke exhaust pipeline (1) along the radial direction, and the backflow notch of the backflow groove faces the fly ash collecting opening;
the reverse power supply is connected with the reverse power supply control end of the fly ash purification controller (K), and the reverse electrode plate (J4) is respectively connected with the positive output end and the negative output end of the reverse electrode plate of the fly ash purification controller (K).
6. The dry refuse fly ash multistage purification control system according to claim 4 or 5, wherein: the whole fly ash collecting port is in an inverted frustum shape, a reciprocating purging port is formed in the side wall of the fly ash collecting port and is connected with a purging end of a reciprocating purging main pipe (61), a reciprocating filter screen (62) is arranged at the reciprocating purging port, and an air outlet of the reciprocating purging main pipe (61) is communicated with the rear end of the fly ash collecting pipe section (F);
the reciprocating purging main pipe (61) is also provided with a reciprocating purging branch pipe (66), and one end of the reciprocating purging branch pipe (66) far away from the reciprocating purging main pipe (61) is communicated with the side wall of the smoke exhaust pipeline (1) far away from the fly ash collecting port;
an air outlet main valve (63) and a reciprocating purging control valve (64) are arranged on the reciprocating purging main pipe (61), the reciprocating purging branch pipe (66) is arranged between the air outlet main valve (63) and the reciprocating purging control valve (64), and an air inlet valve (65) is arranged on the reciprocating purging branch pipe (66);
the air outlet main valve (63) is connected with a second valve control end of the fly ash purification controller (K);
the reciprocating purging control valve (64) is connected with the third valve control end of the fly ash purification controller (K);
and the air inlet valve (65) is connected with the fourth valve control end of the fly ash purification controller (K).
7. The dry type garbage fly ash multistage purification control system according to claim 3, wherein: a bypass heating control valve (32) is further arranged on the bypass pipeline (3), a filtering branch pipe is further arranged between the bypass main valve (31) and the bypass heating control valve (32), the filtering branch pipe is connected with a back-blowing main pipe, at least two back-blowing branch pipes are arranged on the back-blowing main pipe, and the back-blowing branch pipes respectively supply air to the fly ash filter screen (5) correspondingly;
the front end of the back flushing header pipe is also provided with an air supply pressurizing pump (33), and the back flushing branch pipes are provided with back flushing control valves;
the bypass heating control valve (32) is connected with a fifth valve control end of the fly ash purification controller (K);
and all the back flushing control valves are respectively and correspondingly connected with the back flushing control ends of the fly ash purification controllers (K).
8. The dry type garbage fly ash multistage purification control system according to claim 1, wherein: the fly ash accumulation detection module comprises an electrode current calculation module, the electrode current value is equal to a power supply voltage value divided by each electrode resistance value, and the electrode resistance value changes along with the change of the fly ash accumulation amount on the inner wall of the smoke exhaust pipeline (1).
9. The dry type garbage fly ash multistage purification control system according to claim 8, wherein: the front end of the fly ash collecting pipe section (F) is provided with a flow velocity sensor (7), and the flow velocity sensor (7) is connected with the smoke discharge flow velocity detection end of the fly ash purification controller (K).
10. The dry type garbage fly ash multistage purification control system according to claim 1, wherein: the smoke exhaust pipeline (1) at the rear end of the fly ash collecting pipe section (F) is also provided with a water cleaning fly ash device (S), the water cleaning fly ash device comprises a sealed cleaning water tank (S1), a smoke exhaust inlet and a smoke exhaust outlet are formed in the cleaning water tank (S1), the rear end of the fly ash collecting pipe section (F) extends into the water below the surface of the cleaning water tank (S1) through the smoke exhaust inlet, and smoke of the smoke exhaust pipeline (1) is exhausted from the smoke exhaust outlet;
x ash slag drainage covers (S2) are vertically arranged in the cleaning water tank (S1), the ash slag drainage cover (S2) is integrally conical, the conical bottom of the ash slag drainage cover faces the bottom of the cleaning water tank (S1), a water outlet pipe (S3) is connected to the top of the ash slag drainage cover (S2), and the water outlet pipe (S3) is communicated with the interior of the ash slag drainage cover (S2);
a water inlet pipe (S7) and a water outlet header pipe (S4) are further arranged inside the cleaning water tank (S1), and all the water outlet pipes (S3) are communicated with the water outlet header pipe (S4);
the bottom of the cleaning water tank (S1) is also provided with x air feeding heads (S5), the x air feeding heads (S5) are connected with the same air feeding pipe (S6), and the x air feeding heads (S5) are fixedly arranged under the orthographic projection of the x ash drainage covers (S2) in a one-to-one correspondence manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695450.XA CN110508076B (en) | 2019-07-30 | 2019-07-30 | Dry type garbage fly ash multistage purification control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695450.XA CN110508076B (en) | 2019-07-30 | 2019-07-30 | Dry type garbage fly ash multistage purification control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110508076A CN110508076A (en) | 2019-11-29 |
| CN110508076B true CN110508076B (en) | 2021-06-08 |
Family
ID=68624317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910695450.XA Active CN110508076B (en) | 2019-07-30 | 2019-07-30 | Dry type garbage fly ash multistage purification control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110508076B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4318055B2 (en) * | 2007-01-15 | 2009-08-19 | 株式会社日立プラントテクノロジー | Method and apparatus for treating exhaust gas containing sulfur oxide |
| CN101829468B (en) * | 2009-03-10 | 2012-05-23 | 上海融新能源环境科技有限公司 | Flue-gas cleaning method and system for waste incineration |
| CN102562277A (en) * | 2010-12-21 | 2012-07-11 | 梁天宇 | Engine |
| CN102233230A (en) * | 2011-07-18 | 2011-11-09 | 创冠环保(中国)有限公司 | Waste burning smoke purification process and purification system |
| CN203417540U (en) * | 2013-09-03 | 2014-02-05 | 魏伯卿 | Multi-stage filtering device for high-temperature gas-smoke separation and dust removal of ceramic membrane pipe |
| CN106395952B (en) * | 2016-11-16 | 2019-04-30 | 重庆大学 | A kind of desulfurization wastewater and hot fume multi-point atomizing vapo(u)rization system |
-
2019
- 2019-07-30 CN CN201910695450.XA patent/CN110508076B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110508076A (en) | 2019-11-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201157746Y (en) | Energy-saving cooking fume purifier | |
| CN214182230U (en) | Reverse-blowing induced-draft internal-filtration big cloth bag negative pressure dust removal system for smoke treatment of submerged arc furnace | |
| CN206771467U (en) | A kind of wet lampblack depuration equipment of automated cleaning | |
| CN208340408U (en) | A kind of dedicated bag-type dust collecting equipment of Large Electric Furnace smoke gas treatment | |
| CN202620953U (en) | High-temperature gas purification system | |
| CN207237541U (en) | Interior circulator bath dust pelletizing system | |
| CN110508076B (en) | Dry type garbage fly ash multistage purification control system | |
| CN211503741U (en) | High-efficient kiln of handling waste gas | |
| CN102580417A (en) | High-temperature smoke bag type dust remover of submerged arc furnace, dust removing process and dust removing system | |
| CN110542102B (en) | Fly ash treatment system based on garbage classification treatment | |
| CN110508077B (en) | Dry garbage fly ash purification control method based on garbage classification fly ash purification system | |
| CN114887438B (en) | A buggy dust remover for clean high-efficient thermoelectric power | |
| CN206240233U (en) | Flue dust unhurried current particulate autoprecipitation collection device | |
| CN202666642U (en) | Parasitic combined dust collecting device | |
| CN214182226U (en) | Industrial furnace cloth bag dust remover capable of detecting and replacing damaged cloth bag on line | |
| CN209230309U (en) | A kind of flue structure of cement producing line waste heat boiler | |
| CN2920363Y (en) | Large sintering machine tail bag type dust collector | |
| CN102755806A (en) | Parasitic combined dust collector and operation method thereof | |
| CN108371866B (en) | Small-size coal fired boiler flue gas dust collector | |
| CN214389449U (en) | Smoke-eliminating and dust-removing device for furnace and kiln | |
| CN218740802U (en) | Pulse bag type dust collector | |
| CN205392012U (en) | Centrifugal wet or dry high temperature flue gas dust removal ware | |
| CN204710034U (en) | A kind of whirlwind spray mixed dust collector | |
| CN214862305U (en) | Waste incineration's exhaust treatment device | |
| CN213778158U (en) | Novel coal fired boiler convenient to deashing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |