CN110732223A

CN110732223A - rare earth processing waste gas treatment equipment

Info

Publication number: CN110732223A
Application number: CN201911034901.1A
Authority: CN
Inventors: 杨腾跃
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-01-31

Abstract

The invention relates to the technical field of waste gas treatment, in particular to rare earth processing waste gas treatment equipment, which comprises a -th cyclone dust collector, a dust removal mechanism, an absorption mechanism and a second cyclone dust collector, wherein the dust removal mechanism comprises a dust removal tower, a power assembly, a blanking assembly and a filtering assembly, an air inlet cavity, a dust storage cavity and a filtering cavity are arranged in the dust removal tower, a connecting pipe for communicating the air inlet cavity and the dust storage cavity is arranged between an exhaust end of the -th cyclone dust collector and the air inlet cavity, a second connecting pipe is arranged between the dust removal tower and the absorption mechanism, and a third connecting pipe is arranged between the absorption mechanism and the second cyclone dust collector.

Description

rare earth processing waste gas treatment equipment

Technical Field

The invention relates to the technical field of waste gas treatment, in particular to rare earth processing waste gas treatment equipment.

Background

Rare earth minerals contain other impurities in the processing process, so a large amount of toxic and harmful gases including fluorine-containing waste gas, chlorine, sulfur dioxide, sulfur trioxide and the like can be generated.

The method comprises the steps of filtering waste gas, removing particle impurities in the waste gas, and absorbing fluorine waste gas, chlorine gas, sulfur dioxide and sulfur trioxide in the waste gas by using water, caustic soda, calcium hydroxide or ammonia solution, wherein the absorbed waste gas can reach the exhaust standard, and the solution for absorbing the fluorine waste gas, the chlorine gas, the sulfur dioxide and the sulfur trioxide can be used for manufacturing cryolite and the like for repeated use.

Disclosure of Invention

The invention aims to provide rare earth processing waste gas treatment equipment.

rare earth processing waste gas treatment equipment comprises a th cyclone dust collector, a dust collection mechanism, an absorption mechanism and a second cyclone dust collector, wherein the dust collection mechanism comprises a dust collection tower, a power assembly, a blanking assembly and a filtering assembly, the power assembly and the filtering assembly are both installed in the dust collection tower, the blanking assembly is installed on the power assembly, an air inlet cavity, a dust storage cavity and a filtering cavity are arranged in the dust collection tower, the filtering cavity and the dust storage cavity are respectively located above and below the air inlet cavity, the filtering cavity and the dust storage cavity are both communicated with the air inlet cavity, a connecting pipe for communicating the air inlet cavity and the air outlet end of the th cyclone dust collector is arranged between the air inlet cavity and the dust collection tower, a second connecting pipe is arranged between the dust collection tower and the absorption mechanism, and a third connecting pipe is arranged between the absorption mechanism and the second cyclone dust collector.

steps are advanced, power component includes power shaft and a plurality of power leaf, the vertical setting of power bearing is rotated with the upper and lower both ends of gas wash tower respectively at the upper and lower both ends of power shaft in the gas wash tower and is connected, all power leaf is the circumference and distributes on the lateral wall of power shaft and all power leaves all are located the intracavity that admits air, all power leaf all is the slope setting, the motion path setting of the end orientation power leaf of connecting pipe.

Step , the blanking subassembly includes flight and a plurality of cleaning plate, and a plurality of cleaning plate is that the circumference distributes on the lateral wall of power shaft and all cleaning plates all are located and filter the intracavity, every the lower extreme of cleaning plate all laminates and every with the inner wall of gas wash tower the cleaning plate all is the slope setting, the flight cover is established on the power shaft and the flight is located the junction of admitting air chamber and dust storage chamber.

steps are advanced, filtering component includes the intercommunication chamber, be equipped with between the upper end that is located the filter chamber in intercommunication chamber and the filter chamber and be used for separating baffle between them in the intercommunication chamber, be equipped with the connector that a plurality of is used for intercommunication filter chamber and intercommunication chamber on the baffle, every the lower extreme of connector all is equipped with mounting bracket, every all be equipped with filtration membrane on the mounting bracket, the end and the intercommunication chamber intercommunication of second connecting pipe, the side of gas wash tower is equipped with the clearance pipe, the end and the intercommunication chamber intercommunication of clearance pipe, be equipped with pulse valve and breather pump on the clearance pipe, be equipped with the control valve on the connecting pipe.

step is advanced, absorption mechanism includes spray column, spray assembly, circulation subassembly and auxiliary assembly, be equipped with in the spray column and spray the chamber, the bottom that sprays the chamber is equipped with the absorption tank rather than the intercommunication, the internal diameter that sprays the chamber reduces from bottom to top gradually, the spray assembly sets up in the upper end that sprays the chamber, the circulation subassembly sets up the outside at the spray column, the auxiliary assembly sets up and is spraying the intracavity, the bottom of spray column is equipped with the row's material pipe with the absorption tank intercommunication, the end of second connecting pipe and the upper end intercommunication that sprays the chamber.

Step , the subassembly that sprays includes the feed liquor pipe, sprays the frame and a plurality of shower nozzle, the end of feed liquor pipe extends to the upper portion that sprays the chamber, the upper portion at spraying the chamber is installed to the frame that sprays, all the shower nozzle is all installed and is all managed the intercommunication through pipeline and feed liquor at the lower extreme that sprays the frame and all shower nozzles, the bottom of spray column is equipped with the circulating pipe, end and the absorption tank intercommunication of circulating pipe, end and feed liquor pipe intercommunication in addition of circulating pipe, the middle part of circulating pipe is equipped with the circulating pump, the circulating subassembly sets up the middle part at the circulating pipe.

, the circulation subassembly includes the shell, the inside of shell is equipped with the circulation chamber, the upper end of shell is equipped with a plurality of interface, the circulation intracavity is equipped with the draw-in groove that a plurality of and a plurality of interface correspond, every all be equipped with the filter screen rather than the block in the draw-in groove, bolt and shell fixed connection are passed through to the upper end of filter screen, every the upper portion of filter screen all be equipped with interface complex sealing washer.

, the auxiliary assembly comprises an annular plate and a plurality of silk screens, the annular plate is arranged on the upper part of the spraying cavity and the annular plate is arranged below the spraying rack, the small opening end of the annular plate faces towards the setting and is provided with a plurality of the silk screens are sequentially horizontally arranged from top to bottom, the bottom of the absorption groove is provided with a slope, the joint of the circulating pipe and the absorption groove is arranged above the highest part of the slope, and the joint of the third connecting pipe and the spraying cavity is arranged above the annular plate.

Compared with the prior art, the invention has the beneficial effects that:

, the dust storage cavity is arranged in the filtering mechanism of the invention, so that the internal dust storage space can be effectively increased, the cleaning frequency of the filtering mechanism by manpower can be reduced, and the amount of manual labor is reduced.

Secondly, waste gas enters an air inlet cavity from an th connecting pipe, a power blade is blown, a power shaft is driven to rotate through the power blade, power is provided for a blanking assembly, the power assembly can drive a cleaning plate to rotate during working, the lower end of the cleaning plate can push dust at the bottom of a filter cavity into the air inlet cavity and convey the dust into a dust storage cavity through a spiral sheet, the dust can be conveyed downwards into the dust storage cavity during working of the power assembly in the aspect of setting of the spiral sheet, in addition, the dust in the dust storage cavity can be effectively prevented from causing dust raising to affect the filter assembly under the action of airflow in the aspect of , the cleaning plate is enabled to be inclined in the movement process, the upper end of the cleaning plate is located in front of the lower end of the cleaning plate, the dust scraped by the lower end of the cleaning plate can be blocked by the upper end of the cleaning plate, and larger secondary dust raising is avoided.

Thirdly, the annular plate is arranged below the spraying assembly, the passing position of the waste gas can be controlled in the aspect of , the spraying assembly can spray the waste gas at the annular plate and dead angles which cannot be sprayed are avoided, in addition, the waste gas can climb upwards along the inner wall of the spraying tower in the rising process in the aspect of , the waste gas needs to flow downwards firstly and then pass through the annular plate to continue flowing upwards when passing through the annular plate, and a large amount of water vapor and impurities contained in the waste gas can be separated and attached to the annular plate in the downward flowing process.

Fourthly, the absorption liquid sprayed in the invention is accumulated in the absorption groove, harmful substances in the waste gas can be directly absorbed, and the absorption liquid can be repeatedly used for spraying through the matching work of the circulating pipe and the circulating assembly, so that the utilization rate of the absorption liquid is improved, the toxic and harmful substances absorbed by the absorption liquid are saturated as much as possible, and the waste is avoided.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a top view of the dust removing mechanism of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is a cross-sectional view of the dust removing mechanism of the present invention;

FIG. 6 is a top view of an absorbing mechanism according to the present invention;

FIG. 7 is a cross-sectional view taken along line C-C of FIG. 6;

FIG. 8 is a split view of the circulation assembly of the present invention.

The reference numbers in the figure are cyclone dust collector 1, dust removing mechanism 2, dust removing tower 21, air inlet cavity 211, dust storage cavity 212, filter cavity 213, power component 22, power shaft 221, power blade 222, blanking component 23, spiral slice 231, cleaning plate 232, filter component 24, communication cavity 241, partition board 242 partition, connecting port 243, filter membrane 244, cleaning pipe 245, pulse valve 246, ventilation pump 247, control valve 248, absorbing mechanism 3, spray tower 31, spray cavity 311, absorbing tank 312, discharge pipe 313, spray component 32, liquid inlet pipe 321, spray rack 322, spray head 323, circulating pipe 324, circulating pump 325, circulating component 33, housing 331, connecting port 333, clamping groove 334, filter screen 335, annular plate 341, silk screen 342, slope 343, second cyclone dust collector 4, , second connecting pipe 6, and third connecting pipe 7.

Detailed Description

For purposes of making the objects, aspects and advantages of the present invention more apparent, the present invention will be described in detail below with reference to the accompanying drawings and examples.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Referring to fig. 1 to 8, rare earth processing exhaust gas treatment equipment includes a th cyclone dust collector 1, a dust collection mechanism 2, an absorption mechanism 3 and a second cyclone dust collector 4, the dust collection mechanism 2 includes a dust collection tower 21, a power assembly 22, a blanking assembly 23 and a filter assembly 24, the power assembly 22 and the filter assembly 24 are both installed in the dust collection tower 21, the blanking assembly 23 is installed on the power assembly 22, an air inlet cavity 211, a dust storage cavity 212 and a filter cavity 213 are arranged in the dust collection tower 21, the filter cavity 213 and the dust storage cavity 212 are respectively located above and below the air inlet cavity 211, the filter cavity 213 and the dust storage cavity 212 are both communicated with the air inlet cavity 211, a -th connecting pipe for communicating the air inlet cavity 211 and the air inlet cavity 211 is arranged between an exhaust end of the -th cyclone dust collector 1, a second connecting pipe 6 is arranged between the dust collection tower 21 and the absorption mechanism 3, a third connecting pipe 7 is arranged between the absorption mechanism 3 and the second cyclone dust collector 4, when the waste gas treatment equipment is used, the waste gas treatment equipment selects -preferred waste gas processing exhaust gas processing equipment, the waste gas processing equipment filters harmful impurities in the dust collection tower, and enters the dust collection mechanism 2, the dust collection tower, the dust collection mechanism 2, the waste gas enters the dust collection mechanism 21, the dust collection mechanism 23, the dust collection mechanism, the waste gas enters the dust collection mechanism, the dust collection mechanism 3, the waste gas enters the dust collection mechanism, and the dust collection mechanism 3, and the dust collection mechanism 23, and the dust collection mechanism 4, and the waste gas is filtered.

The power assembly 22 comprises a power shaft 221 and a plurality of power blades 222, the power shaft 221 is vertically arranged in the dust removal tower 21, the upper end and the lower end of the power shaft 221 are respectively rotatably connected with the upper end and the lower end of the dust removal tower 21, all the power blades 222 are circumferentially distributed on the side wall of the power shaft 221 and all the power blades 222 are positioned in the air inlet cavity 211, all the power blades 222 are obliquely arranged, and the end of the -th connecting pipe 5 is arranged towards the motion path of the power blades 222, when exhaust gas enters the air inlet cavity 211 from the -th connecting pipe 5, the power blades 222 are blown, so that the power shaft 221 is driven to rotate through the power blades 222 to provide power for the blanking assembly 23, wherein the oblique arrangement of the power blades 222 enables the air flow to be blown off along the oblique direction of the power blades 222 when the air flow blown out from the -th connecting pipe 5 impinges on the power blades 222, the air flow is blown off along the oblique direction of the power blades 222, the air flow in the arrangement, the air flow impinges on the power blades 222 to provide power for the power assembly 22, energy conservation and environmental protection, the air flow in addition, the filter part of the filter assembly is capable of preventing the dust particles from entering the middle filter component , and the filter part of the filter assembly from entering the filter assembly, so as to prevent the filter part of the filter assembly from entering the filter assembly, wherein the filter assembly, the.

The blanking assembly 23 comprises a spiral sheet 231 and a plurality of cleaning plates 232, the cleaning plates 232 are circumferentially distributed on the side wall of the power shaft 221, all the cleaning plates 232 are located in the filter cavity 213, the lower end of each cleaning plate 232 is attached to the inner wall of the dust removal tower 21, each cleaning plate 232 is obliquely arranged, the spiral sheet 231 is sleeved on the power shaft 221, and the spiral sheet 231 is located at the connection position of the air inlet cavity 211 and the dust storage cavity 212, when the power assembly 22 rotates, the spiral sheet 231 is driven to rotate, when the spiral sheet 231 rotates, the dust in the air inlet cavity 211 is conveyed into the dust storage cavity 212 through the granular dust conveying belt, the spiral sheet 231 is selected to control, dust can be conveyed downwards into the dust storage cavity 212 when the power assembly 22 works, in addition, can effectively prevent dust in the dust storage cavity 212 from being lifted again under the action of air flow to affect the filter assembly 24, meanwhile, when the power assembly 22 works, the cleaning plates 232 are driven to rotate, the lower ends of the cleaning plates 232 can clean the dust in the filter cavity 212, and the dust cleaning plates 232 can be prevented from being pushed to the upper ends of the dust storage cavity, and the cleaning plates 232, so that the dust in the dust storage cavity 211 is cleaned, and the dust storage cavity 211 is pushed to the dust storage cavity, and the dust is prevented from being cleaned, and the dust cleaning plates 232, and the dust cleaning plates are pushed to the dust storage cavity, and the dust.

The filtering assembly 24 comprises a communicating cavity 241, a partition plate 242 for separating the communicating cavity 241 and the filtering cavity 213 is arranged at the upper end of the filtering cavity 213 of the communicating cavity 241 and between the communicating cavity 241 and the filtering cavity 213, a plurality of connecting ports 243 for communicating the filtering cavity 213 with the communicating cavity 241 are arranged on the partition plate 242, a mounting frame is arranged at the lower end of each connecting port 243, a filtering membrane 244 is arranged on each mounting frame, the end of the second connecting pipe 6 is communicated with the communicating cavity 241, a cleaning pipe 245 is arranged beside the dust collection tower 21, the end of the cleaning pipe 245 is communicated with the communicating cavity 241, a pulse valve 246 and a vent pump 247 are arranged on the cleaning pipe 245, a control valve 248 is arranged on the connecting pipe 5, the exhaust gas in the filtering cavity 213 retains particle impurities in the filtering cavity 213 through the filtering membrane 244, the exhaust gas passes through the filtering membrane 244 to enter the communicating cavity 241, and is finally conveyed through the second connecting pipe 6, when the particles on the filtering membrane 244 need to be cleaned, the control valve 248 is closed, and the pulse valve 246 and the vent pump 247 are matched with the vent pump to work, so that the particles on the.

The absorption mechanism 3 comprises a spray tower 31, a spray component 32, a circulation component 33 and an auxiliary component, wherein a spray cavity 311 is arranged in the spray tower 31, an absorption groove 312 communicated with the spray cavity 311 is arranged at the bottom of the spray cavity 311, the inner diameter of the spray cavity 311 is gradually reduced from bottom to top, the spray component 32 is arranged at the upper end of the spray cavity 311, the circulation component 33 is arranged outside the spray tower 31, the auxiliary component is arranged in the spray cavity 311, a discharge pipe 313 communicated with the absorption groove 312 is arranged at the bottom of the spray tower 31, the end of the second connecting pipe 6 is communicated with the upper end of the spray cavity 311, when filtered waste gas enters the spray tower 31 through the second connecting pipe 6, the filtered waste gas is firstly introduced into the absorption groove 312 to react with absorption liquid, most of toxic and harmful substances in the waste gas can be removed, and then the waste gas is sprayed through the spray component 32 in the upward flowing process, so that the toxic and harmful substances in the waste gas are absorbed.

The spraying assembly 32 comprises a liquid inlet pipe 321, a spraying frame 322 and a plurality of spray heads 323, wherein the end of the liquid inlet pipe 321 extends to the upper part of the spraying cavity 311, the spraying frame 322 is installed at the upper part of the spraying cavity 311, all the spray heads 323 are installed at the lower end of the spraying frame 322, all the spray heads 323 are communicated with the liquid inlet pipe 321 through pipelines, the bottom of the spraying tower 31 is provided with a circulating pipe 324, the end of the circulating pipe 324 is communicated with the absorption tank 312, the other end of the circulating pipe 324 is communicated with the liquid inlet pipe 321, the middle part of the circulating pipe 324 is provided with a circulating pump 325, the circulating assembly 33 is arranged at the middle part of the circulating pipe 324, the absorption liquid is introduced into the spray heads 323 through the liquid inlet pipe 321, the absorption liquid is sprayed downwards through the spray heads 323, meanwhile, the waste gas flows upwards after passing through the absorption tank 312, the sprayed absorption liquid collides with the sprayed absorption liquid, the absorption liquid enters the absorption tank 312, and is recycled through the spray heads 323, so that the absorption liquid is fully used again, and waste is avoided.

The circulation component 33 comprises a shell 331, a circulation cavity is arranged in the shell 331, a plurality of inserting ports 333 are arranged at the upper end of the shell 331, a plurality of clamping grooves 334 corresponding to the inserting ports 333 are arranged in the circulation cavity, a filter screen 335 clamped with the clamping grooves 334 is arranged in each clamping groove 334, the upper end of each filter screen 335 is fixedly connected with the shell 331 through bolts, a sealing ring matched with the inserting ports 333 is arranged at the upper part of each filter screen 335, the absorption liquid can be filtered firstly when being recycled through the filter component 24, the spray head 323 can be prevented from being blocked due to impurities contained in the absorption liquid, and the filter screen 335 in the filter component 24 is easy to replace.

The auxiliary assembly comprises an annular plate 341 and a plurality of silk screens 342, the annular plate 341 is arranged at the upper part of the spraying cavity 311, the annular plate 341 is positioned below the spraying frame 322, the small end of the annular plate 341 faces the spraying frame, the silk screens 342 are sequentially horizontally arranged from top to bottom, the bottom of the absorption tank 312 is provided with a slope 343, the joint of the circulating pipe 324 and the absorption tank 312 is positioned above the highest part of the slope 343, and the joint of the third connecting pipe 7 and the spraying cavity 311 is positioned above the annular plate 341; the annular plate 341 is arranged to enable the airflow to climb upwards along the inner wall of the spray tower 31 in the ascending process, the airflow needs to flow downwards firstly and then to continuously flow upwards through the annular plate 341 in the process of flowing downwards, a large amount of water vapor and impurities contained in the exhaust gas can be separated and attached to the annular plate 341 in the process of flowing downwards, the slope 343 is used for enabling the impurities of the absorption liquid to be deposited at the bottom and not to be sucked by a large amount of circulating pipes 324, the arrangement of the plurality of wire meshes 342 enables the absorbent to be sprayed, part of the absorbent can be attached to the wire meshes 342, and therefore when the exhaust gas passes through the wire meshes 342 in the process of flowing upwards, the contact between the exhaust gas and the absorbent can be increased, and the absorption effect of the absorbent on harmful substances in the exhaust gas is further improved.

The working principle of the invention is that the exhaust gas firstly enters the cyclone separator to separate large particle impurities, then enters the air inlet cavity 211 from the connecting pipe 5, blows the power blade 222, further drives the power shaft 221 to rotate through the power blade 222 to provide power for the blanking assembly 23, the power assembly 22 drives the cleaning plate 232 to rotate when working, the lower end of the cleaning plate 232 can push dust at the bottom of the filter cavity 213 into the air inlet cavity 211, the dust storage cavity 212 is conveyed through the spiral plate 231, the spiral plate 231 is driven to rotate through the rotation of the power assembly 22, the dust storage cavity 212 is conveyed through the particle dust conveying belt in the air inlet cavity 211, meanwhile, the exhaust gas enters the filter cavity 213, the exhaust gas in the filter cavity 213 retains the particle impurities in the filter cavity 213 through the filter membrane 244, the exhaust gas passes through the filter membrane 244 to enter the communicating cavity 241, the filtered exhaust gas enters the spray tower 31 through the second connecting pipe 6, the filtered exhaust gas is firstly introduced into the absorption tank 312 to react with the absorption liquid, so as to remove most harmful substances in the exhaust gas, the absorption liquid enters the spray nozzle 312 through the absorption tank, the absorption liquid, the absorption tank 312, the absorption liquid is sprayed out, and the absorption liquid is sprayed out through the spray head 324, and the absorption tank 312, the absorption tank, the absorption liquid, the absorption tank 312, and the absorption liquid is sprayed out, the absorption tank, the absorption liquid is sprayed out, the absorption tank 312, and the absorption tank, the absorption liquid is.

Claims

1, rare earth processing exhaust-gas treatment equipment, its characterized in that includes cyclone (1), dust removal mechanism (2), absorption mechanism (3) and second cyclone (4), dust removal mechanism (2) are including gas wash tower (21), power component (22), blanking subassembly (23) and filtering component (24), power component (22) and filtering component (24) are all installed in gas wash tower (21), blanking subassembly (23) are installed on power component (22), be equipped with air intake chamber (211), dust storage chamber (212) and filter chamber (213) in gas wash tower (21), filter chamber (213) and dust storage chamber (212) are located the top and the below of air intake chamber (211) respectively and filter chamber (213) and dust storage chamber (212) all are linked together with air intake chamber (211), be equipped with between the whirlwind exhaust end of dust remover (1) and air intake chamber (211) and be used for communicateing between them connecting pipe (5), be equipped with between second absorption mechanism (3) and absorption mechanism (7), be equipped with second cyclone (7).

2. The rare earth processing waste gas treatment equipment according to claim 1, wherein the power assembly (22) includes a power shaft (221) and a plurality of power blades (222), the power shaft (221) is vertically disposed in the dust removal tower (21), the upper and lower ends of the power shaft (221) are rotatably connected with the upper and lower ends of the dust removal tower (21), all the power blades (222) are circumferentially distributed on the side wall of the power shaft (221), all the power blades (222) are disposed in the air intake cavity (211), all the power blades (222) are disposed in an inclined manner, and the end of the connecting pipe (5) is disposed toward the movement path of the power blades (222).

3. The rare earth processing waste gas treatment equipment of claim 2, wherein the blanking assembly (23) includes a spiral piece (231) and a plurality of cleaning plates (232), the plurality of cleaning plates (232) are circumferentially distributed on the side wall of the power shaft (221) and all the cleaning plates (232) are located in the filter chamber (213), the lower end of each cleaning plate (232) is attached to the inner wall of the dust removal tower (21) and each cleaning plate (232) is obliquely arranged, the spiral piece (231) is sleeved on the power shaft (221) and the spiral piece (231) is located at the connection of the air inlet chamber (211) and the dust storage chamber (212).

4. The rare earth processing waste gas treatment equipment according to claim 1, wherein the filter module (24) includes a communication chamber (241), a partition (242) for separating the communication chamber (241) and the filter chamber (213) is provided at an upper end of the filter chamber (213) and between the communication chamber (241) and the filter chamber (213), the partition (242) is provided with a plurality of connectors (243) for communicating the filter chamber (213) and the communication chamber (241), a mounting frame is provided at a lower end of each connector (243), a filter membrane (244) is provided on each mounting frame, a end of the second connecting pipe (6) is communicated with the communication chamber (241), a cleaning pipe (245) is provided at a side of the dust removal tower (21), a end of the cleaning pipe (245) is communicated with the communication chamber (241), the cleaning pipe (245) is provided with a pulse valve (246) and a vent pump (247), and a control valve (248) is provided on the connecting pipe (5).

5. The rare earth processing waste gas treatment equipment according to claim 1, wherein the absorption mechanism (3) includes a spray tower (31), a spray assembly (32), a circulation assembly (33) and an auxiliary assembly, a spray cavity (311) is provided in the spray tower (31), an absorption tank (312) communicated with the spray cavity (311) is provided at the bottom of the spray cavity (311), the inner diameter of the spray cavity (311) is gradually reduced from bottom to top, the spray assembly (32) is provided at the upper end of the spray cavity (311), the circulation assembly (33) is provided at the outside of the spray tower (31), the auxiliary assembly is provided in the spray cavity (311), a discharge pipe (313) communicated with the absorption tank (312) is provided at the bottom of the spray tower (31), and the end of the second connecting pipe (6) is communicated with the upper end of the spray cavity (311).

6. The kinds of rare earth processing waste gas treatment equipment according to claim 5, wherein the spray assembly (32) includes a liquid inlet pipe (321), a spray rack (322) and a plurality of spray heads (323), the end of the liquid inlet pipe (321) extends to the upper part of the spray cavity (311), the spray rack (322) is installed at the upper part of the spray cavity (311), all the spray heads (323) are installed at the lower end of the spray rack (322) and all the spray heads (323) are communicated with the liquid inlet pipe (321) through pipes, the bottom of the spray tower (31) is provided with a circulation pipe (324), the end of the circulation pipe (324) is communicated with the absorption tank (312), the other end of the circulation pipe (324) is communicated with the liquid inlet pipe (321), the middle part of the circulation pipe (324) is provided with a circulation pump (325), and the circulation assembly (33) is arranged at the middle part of the circulation pipe (324).

7. The rare earth processing waste gas treatment equipment of claim 6, wherein the circulation component (33) includes a housing (331), a circulation chamber is provided inside the housing (331), the upper end of the housing (331) is provided with a plurality of insertion ports (333), a plurality of clamping grooves (334) corresponding to the plurality of insertion ports (333) are provided in the circulation chamber, a filter screen (335) engaged with each clamping groove (334) is provided in each clamping groove (334), the upper end of the filter screen (335) is fixedly connected with the housing (331) through a bolt, and a sealing ring engaged with the insertion ports (333) is provided on the upper portion of each filter screen (335).

8. The rare earth processing waste gas treatment equipment according to claim 6, wherein the auxiliary component includes an annular plate (341) and a plurality of wire nets (342), the annular plate (341) is disposed on the upper portion of the spray chamber (311) and the annular plate (341) is located below the spray rack (322), the small end of the annular plate (341) is disposed facing the small end, the plurality of wire nets (342) are sequentially horizontally disposed from top to bottom, the bottom of the absorption tank (312) is provided with a slope (343), the connection between the circulation pipe (324) and the absorption tank (312) is located above the highest point of the slope (343), and the connection between the third connection pipe (7) and the spray chamber (311) is located above the annular plate (341).