CN116116131A - Ceramic kiln flue gas filtering system and control method thereof - Google Patents

Abstract

The application relates to the technical field of ceramic kiln flue gas filtration, and provides a ceramic kiln flue gas filtration system and a control method thereof, wherein the ceramic kiln flue gas filtration system comprises: the filtering main body comprises a filtering bin, an air inlet pipe and an air outlet pipe; the grading filter screen structure is arranged in the filter bin and is obliquely arranged towards one side of the air inlet pipe along the height direction and used for filtering flue gas; the vibrating mechanism is arranged on the filter bin, and one end of the vibrating mechanism extends into the filter bin and is connected with the grading filter screen structure for driving the grading filter screen structure to vibrate; and the collecting device is arranged at the bottom of the filtering bin. The vibration mechanism is connected with the hierarchical filter screen structure and drives the hierarchical filter screen structure to vibrate, so that particles attached to the upper part of the hierarchical filter screen structure fall off, the phenomenon that the hierarchical filter screen structure is blocked due to fast dust accumulation is avoided, the automatic cleaning of the dust accumulation is completed in the normal smoke filtering process, and the influence on normal production is avoided.

Description

Ceramic kiln flue gas filtering system and control method thereof

Technical Field

The application relates to the technical field of ceramic kiln flue gas filtration, in particular to a ceramic kiln flue gas filtration system and a control method thereof.

Background

The heat content of the ceramic kiln flue gas is a part of important expenditure of heat in the heat balance of the ceramic kiln, and in order to reduce the fuel consumption in the ceramic production process, the ceramic kiln flue gas is generally subjected to heat exchange or is supplied to a drying kiln for use, so that the energy consumption of the drying kiln is reduced, and the purposes of energy conservation and emission reduction are achieved; however, the flue gas of the ceramic kiln contains smoke dust, ceramic fibers and the like with different granularities, and has higher moisture content, so that the problems of pipe wall scaling, ceramic fibers or smoke dust blocking a blowpipe and the like easily occur in the process of directly utilizing the flue gas, and the conditions of low heat exchange efficiency or insufficient air supply quantity are caused, so that the heat exchange quantity is influenced or the drying efficiency is reduced. Therefore, the flue gas of the ceramic kiln needs to be reused after dust removal treatment. The general dust removing system (such as a cloth bag dust remover or a desulfurizing tower) occupies large area or has large system resistance in a kiln flue gas system, has low flue gas filtering efficiency, does not generally have a dust cleaning function, needs manual cleaning frequently, wastes time and labor, and further affects normal production.

Accordingly, the prior art has drawbacks and needs to be improved and developed.

Disclosure of Invention

Aiming at the defects in the prior art, the ceramic kiln flue gas filtering system and the control method thereof are provided, and the problems that the ceramic kiln flue gas dust removal system in the prior art does not have a dust cleaning function, needs manual cleaning frequently, wastes time and labor and affects normal production are solved.

The technical scheme adopted for solving the technical problems is as follows: a ceramic kiln flue gas filtration system comprising:

the filtering main body comprises a filtering bin, an air inlet pipe and an air outlet pipe;

the grading filter screen structure is arranged in the filter bin, is obliquely arranged towards one side of the air inlet pipe along the height direction and is used for filtering flue gas;

the vibrating mechanism is arranged on the filtering bin, and one end of the vibrating mechanism stretches into the filtering bin and is connected with the grading filter screen structure to drive the grading filter screen structure to vibrate;

and the collecting device is arranged at the bottom of the filtering bin.

Optionally, the hierarchical filter screen structure includes:

the first-stage filtering unit and the second-stage filtering unit are arranged at intervals along the air inlet direction of the filtering bin, and the first-stage filtering unit is positioned at one side of the second-stage filtering unit close to the air inlet pipe;

the vibration mechanism includes:

the first vibrator and the second vibrator are respectively connected with the primary filtering unit and the secondary filtering unit.

Optionally, the ceramic kiln flue gas filtration system further comprises:

the first detection part is arranged on the air inlet pipe and is used for detecting the air pressure in the air inlet pipe;

the second detection piece is arranged on the air outlet pipe and is used for detecting the air pressure in the air outlet pipe;

the third detection piece is arranged on the filter bin and is used for detecting the air pressure between the primary filter unit and the secondary filter unit;

the controller, first detecting piece, the second detecting piece, the third detecting piece, the first vibrator and the second vibrator all with the controller electricity is connected, the controller is according to first detecting piece with the pressure differential drive of third detecting piece the start-stop of first vibrator, and according to the second detecting piece with the pressure differential drive of third detecting piece the start-stop of second vibrator.

Optionally, the collecting device comprises:

the first hopper and the second hopper are both positioned on the bottom surface of the filtering bin and communicated with the filtering bin, and the first hopper and the second hopper are respectively and correspondingly arranged with the primary filtering unit and the secondary filtering unit.

Optionally, the first hopper is the same with the structure of second hopper, be provided with one-level switch spare and second grade switch spare on the first hopper, one-level switch spare with second grade switch spare along the direction of height interval set up in first hopper, and all with the controller electricity is connected, is used for opening or closing the passageway of first hopper, one-level switch spare is located on the top surface of second grade switch spare.

Optionally, a partition plate is arranged in the filter bin, the partition plate divides the filter bin into a first channel and a second channel, and two ends of the first channel and two ends of the second channel are respectively communicated with the air inlet pipe and the air outlet pipe;

the ceramic kiln flue gas filtering system comprises two hierarchical filter screen structures, and the two hierarchical filter screen structures are respectively located in the first channel and the second channel.

Optionally, the filter body further comprises:

the two first sealing doors are respectively arranged at the connecting positions of the air inlet pipe and the filtering bin in a sliding manner, and the connecting positions of the air outlet pipe and the filtering bin are used for sealing the two ends of the first channel;

The two second sealing doors are respectively arranged at the connecting positions of the air inlet pipe and the filtering bin in a sliding mode, and the connecting positions of the air outlet pipe and the filtering bin are used for sealing the two ends of the second channel.

Optionally, the filter body further comprises:

the two first treatment doors are positioned on one side of the filter bin, one ends of the two first treatment doors, which are opposite, are rotationally connected with the filter bin, and the opposite ends of the two first treatment doors are propped against each other;

the two second treatment doors are positioned on the other side of the filter bin, one ends of the two second treatment doors, which are opposite, are rotationally connected with the filter bin, and the opposite ends of the two second treatment doors are propped against each other;

the two first treatment doors and the two second treatment doors are respectively used for closing openings on two sides of the filter bin.

The technical scheme adopted for solving the technical problem is as follows: the control method based on the ceramic kiln flue gas filtering system comprises the following steps:

presetting a first standard pressure difference and a second standard pressure difference;

Acquiring the pressure values of the air pressure in the air inlet pipe, the air pressure in the air outlet pipe and the air pressure between the primary filter unit and the secondary filter unit, calculating the pressure difference between the air pressure in the air inlet pipe and the air pressure between the primary filter unit and the secondary filter unit to obtain a first pressure difference, and calculating the pressure difference between the air pressure in the air outlet pipe and the air pressure between the primary filter unit and the secondary filter unit to obtain a second pressure difference;

comparing the first pressure difference with the first standard pressure difference, and if the first pressure difference is larger than the first standard pressure difference, starting a first vibrator and closing after a certain time is kept;

and comparing the second pressure difference with the second standard pressure difference, and if the second pressure difference is larger than the second standard pressure difference, starting a second vibrator and closing after a certain time is kept.

Optionally, the comparing the second pressure difference with the second standard pressure difference, if the second pressure difference is greater than the second standard pressure difference, turning on a second vibrator and turning off after a certain period of time, and then further includes:

presetting a third standard differential pressure and a fourth standard differential pressure;

comparing the first pressure difference with the third standard pressure difference, and sending a cleaning alarm prompt if the first pressure difference is larger than the third standard pressure difference;

And comparing the second pressure difference with the fourth standard pressure difference, and sending out a cleaning alarm prompt if the second pressure difference is larger than the fourth standard pressure difference.

The application provides a ceramic kiln flue gas filtering system and a control method thereof, wherein flue gas enters a filtering bin from an air inlet pipe and is discharged from an air outlet pipe, and a hierarchical filter screen structure is arranged in the filtering bin to filter the flue gas; after filtering, partial dust and other particles in the flue gas are attached to the hierarchical filter screen structure, the vibrating mechanism is connected with the hierarchical filter screen structure to drive the hierarchical filter screen structure to vibrate, so that the partial attached particles fall off, the rapid dust accumulation on the hierarchical filter screen structure is avoided, the blockage is caused, the ceramic kiln flue gas filtering system completes the automatic cleaning of the dust accumulation on the hierarchical filter screen structure in the flue gas continuous filtering process, and the cleaning process does not affect the normal production.

Drawings

FIG. 1 is a schematic perspective view of a ceramic kiln flue gas filtration system provided herein;

FIG. 2 is a schematic front view of a ceramic kiln flue gas filtration system provided herein;

FIG. 3 is a schematic cross-sectional perspective view of a ceramic kiln flue gas filtration system provided herein;

FIG. 4 is a schematic cross-sectional perspective view of a ceramic kiln flue gas filtration system provided herein;

FIG. 5 is a functional block diagram of a ceramic kiln flue gas filtration system provided herein;

FIG. 6 is an enlarged schematic view of portion A of FIG. 3 of the present application;

FIG. 7 is an enlarged schematic view of section B of FIG. 4 of the present application;

FIG. 8 is an enlarged schematic view of portion C of FIG. 4 of the present application;

FIG. 9 is a flow chart of a control method of the ceramic kiln flue gas filtration system provided in the present application;

reference numerals illustrate:

10. a ceramic kiln flue gas filtering system; 11. a filtering body; 12. a hierarchical filter screen structure; 13. a vibration mechanism; 14. a collecting device; 15. a first detecting member; 16. a second detecting member; 17. a third detecting member; 18. a controller; 111. a filtering bin; 112. an air inlet pipe; 113. an air outlet pipe; 114. a partition plate; 115. a first closure door; 116. a second closure door; 117. a first processing gate; 118. a second processing gate; 1111. a first channel; 1112. a second channel; 1113. a plug pin; 1141. a first limit part; 1142. a second limit part; 1151. a pin hole; 121. a first stage filtration unit; 122. a secondary filtering unit; 123. a V-shaped filter screen; 131. a first vibrator; 132. a second vibrator; 141. a first hopper; 142. a second hopper; 143. a first-stage switching member; 144. a second-stage switching member; 1411. an annular clamping part; 1431. a support frame; 1432. a cylinder; 1433. and a flashboard.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application clearer and more specific, the present application will be described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

The ceramic kiln flue gas dust removal system has no dust cleaning function, needs manual cleaning with manual frequency, wastes time and labor and affects the problem of normal production in the prior art, and provides the ceramic kiln flue gas filtration system and the control method thereof, wherein flue gas enters a filtration bin from an air inlet pipe and is discharged from an air outlet pipe, and a hierarchical filter screen structure is arranged in the filtration bin for filtering the flue gas; after filtration, part of dust and other particles in the flue gas are attached to the hierarchical filter screen structure, the vibrating mechanism is connected with the hierarchical filter screen structure to drive the hierarchical filter screen structure to vibrate, so that the part of attached particles fall off, the rapid dust accumulation on the hierarchical filter screen structure is avoided, the blockage is caused, the automatic cleaning of the dust accumulation on the hierarchical filter screen structure is completed in the continuous flue gas filtration process of the ceramic kiln flue gas filtration system, and the normal production is not influenced in the cleaning process; please refer to the following examples for details.

Referring to fig. 1 and 2 in combination, a ceramic kiln flue gas filtration system 10 is provided in a first embodiment of the present application, comprising a filter body 11, a graded filter screen structure 12, a vibration mechanism 13, and a collection device 14; the filtering main body 11 comprises a filtering bin 111, an air inlet pipe 112 and an air outlet pipe 113; the graded filter screen structure 12 is disposed in the filter bin 111 and is inclined toward one side of the air inlet pipe 112 along the height direction, for filtering the flue gas; the vibration mechanism 13 is arranged on the filter bin 111, and one end of the vibration mechanism 13 extends into the filter bin 111 and is connected with the graded filter screen structure 12 to drive the graded filter screen structure 12 to vibrate; the collecting device 14 is disposed at the bottom of the filter house 111.

It can be appreciated that the existing ceramic kiln flue gas filtering system 10 does not have a dust cleaning function, and the filter screen is often blocked in use, so that the filtering efficiency is reduced, and therefore, the manual and frequent ash removal is required to ensure the filtering efficiency in use, the cleaning process is time-consuming and labor-consuming, and the normal production is affected; the ceramic kiln flue gas filtering system 10 provided by the application is used for filtering flue gas generated by a ceramic kiln so as to facilitate subsequent heat exchange or reuse in a drying kiln; the flue gas enters the filter bin 111 from the air inlet pipe 112 and is discharged from the air outlet pipe 113, and a hierarchical filter screen structure 12 is arranged in the filter bin 111 to filter the flue gas; after filtration, part of dust and other particles in the flue gas are attached to the grading filter screen structure 12, the vibration mechanism 13 is connected with the grading filter screen structure 12 to drive the grading filter screen structure 12 to vibrate, so that the part of attached particles fall off, the rapid dust accumulation on the grading filter screen structure 12 is avoided, the blockage is caused, the ceramic kiln flue gas filtration system 10 finishes the automatic cleaning of the dust accumulation on the grading filter screen structure 12 in the continuous flue gas filtration process, and the cleaning process does not affect the normal production (without shutdown for ash removal);

Specifically, the filtering main body 11 comprises a filtering bin 111, an air inlet pipe 112 and an air outlet pipe 113, two ends of the filtering bin 111 are communicated with the air inlet pipe 112 and the air outlet pipe 113, flue gas generated by a ceramic kiln enters the filtering bin 111 from the air inlet pipe 112 and is discharged from the air outlet pipe 113, when the ceramic kiln is actually used, the air inlet pipe 112 is connected with a flue gas main pipe of the ceramic kiln, the air outlet pipe 113 is connected with a smoke exhaust pipeline, and the filtered flue gas is conveyed to a subsequent process for use through a smoke exhaust fan; the graded filter screen structure 12 is installed in the filter house 111 for filtering the smoke; the edge of the grading filter screen structure 12 is connected with the inner wall of the filter bin 111, and the grading filter screen structure 12 is arranged opposite to the air inlet pipe 112 so as to effectively filter the flue gas; when the flue gas passes through the grading filter screen structure 12, part of particles such as smoke dust, ceramic fibers and the like of the flue gas are attached to the grading filter screen structure 12, and the other part of particles are blocked by the grading filter screen structure 12 and then are slowed down and settled under the action of gravity; the hierarchical filter screen structure 12 is obliquely arranged towards one side of the air inlet pipe 112 along the height direction, so that the falling and sedimentation of dust, ceramic fibers and other particles in the flue gas are facilitated after the particles are blocked by the hierarchical filter screen structure 12; the collecting device 14 is arranged at the bottom of the filter bin 111, communicated with the inside of the filter bin 111 and used for receiving dust, ceramic fiber and other particles in the flue gas; the vibrating mechanism 13 is arranged on the filter bin 111, one end of the vibrating mechanism 13 stretches into the filter bin 111 and is connected with the grading filter screen structure 12 to transmit vibration; under the vibration action of the vibration mechanism 13, the particles attached to the upper part of the grading filter screen structure 12 fall off and fall into the collecting device 14; the dust removal of the grading filter screen structure 12 is realized through the vibration action of the vibration mechanism 13, so that the dust accumulation speed of the grading filter screen structure 12 can be reduced, the cleaning or replacement period of the grading filter screen structure 12 is prolonged, meanwhile, the vibration dust removal process is carried out in the filter bin 111, the normal filtration of smoke is not influenced, the shutdown cleaning is not required, and the influence on normal production is avoided; after the graded filter screen structure 12 is used for a long time, scale deposition is inevitably generated, the filtering efficiency is affected, the graded filter screen structure 12 needs to be cleaned or replaced after being detached, and the intermittent graded filter screen structure 12 is subjected to vibration ash removal through the vibration effect, so that the scale deposition speed can be effectively slowed down, and the cleaning or replacing period of the graded filter screen structure 12 is prolonged.

Referring to fig. 1 to 3 in combination, in some embodiments, the hierarchical filter screen structure 12 includes a primary filter unit 121 and a secondary filter unit 122, where the primary filter unit 121 and the secondary filter unit 122 are disposed at intervals along the air inlet direction of the filter house 111, and the primary filter unit 121 is located on a side of the secondary filter unit 122 close to the air inlet pipe 112; the vibration mechanism 13 includes a first vibrator 131 and a second vibrator 132, and the first vibrator 131 and the second vibrator 132 are connected to the primary filter unit 121 and the secondary filter unit 122, respectively.

It can be understood that the primary filter unit 121 and the secondary filter unit 122 are obliquely arranged towards one side of the air inlet pipe 112 along the height direction, the primary filter unit 121 and the secondary filter unit 122 are sequentially installed in the filter bin 111 and are arranged at intervals in the air inlet direction, and ceramic kiln flue gas enters the filter bin 111 from the air inlet pipe 112 and sequentially passes through the primary filter unit 121 and the secondary filter unit 122, so that two-stage filtration of the ceramic kiln flue gas is realized, the filtration effect of the ceramic kiln flue gas is effectively improved, and the pressure loss is small compared with that of a traditional dust removal system; specifically, the flow rate of the flue gas is reduced to below 3.5m/s, coarser particles in the flue gas of the ceramic kiln are settled under the action of gravity before entering the first-stage filter unit 121 and fall into the collecting device 14, a part of coarser particles are blocked and filtered when entering the first-stage filter unit 121, the flue gas has certain speed reduction when passing through the first-stage filter unit 121, and is subjected to certain gravity settling effect between the first-stage filter unit 121 and the second-stage filter unit, and finally enters the second-stage filter unit 122, and part of particles remained in the flue gas are blocked and filtered; the primary filter unit 121 and the secondary filter unit 122 can realize the filtration to remove most of particulate matters contained in the flue gas, and the dust content is reduced by more than 90%; the first vibrator 131 and the second vibrator 132 are respectively connected with the first-stage filter unit 121 and the second-stage filter unit 122, and under the driving action of the first vibrator 131 and the second vibrator 132, the vibration ash cleaning action of the first-stage filter unit 121 and the second-stage filter unit 122 is realized, so that the dust accumulation speed of the first-stage filter unit 121 and the second-stage filter unit 122 can be reduced, and the cleaning or replacement period of the first-stage filter unit 121 and the second-stage filter unit 122 can be prolonged; the first vibrator 131 and the second vibrator 132 have the same structure, and specifically, vibration driving structures such as a vibration motor and a vibration cylinder may be employed.

Referring to fig. 4, in some embodiments, the primary filter unit 121 and the secondary filter unit 122 are each formed by overlapping V-shaped filter screens 123.

It can be understood that the sections of the primary filter unit 121 and the secondary filter unit 122 are in a zigzag shape, the primary filter unit 121 and the secondary filter unit 122 are formed by overlapping a plurality of V-shaped filter screens 123, the openings of the V-shaped filter screens 123 face the same, and the edge positions are sequentially connected to form an integrated zigzag structure; the V-shaped filter screen 123 is provided with meshes so as to facilitate the flue gas to pass through; the primary filter unit 121 and the secondary filter unit 122 are formed by overlapping a plurality of V-shaped filter screens 123, so that the area of the filter screens can be increased, the smoke filtering efficiency can be improved, and the occupied area of the ceramic kiln smoke filtering system 10 can be reduced.

Referring to fig. 1, 3 and 5 in combination, in some embodiments, the ceramic kiln flue gas filtration system 10 further comprises a first sensing element 15, a second sensing element 16, a third sensing element 17 and a controller 18; the first detecting member 15 is disposed on the air inlet pipe 112 and is configured to detect an air pressure in the air inlet pipe 112; the second detecting piece 16 is arranged on the air outlet pipe 113 and is used for detecting the air pressure in the air outlet pipe 113; the third detecting member 17 is disposed on the filter house 111, and is configured to detect air pressure between the primary filter unit 121 and the secondary filter unit 122; the first detecting member 15, the second detecting member 16, the third detecting member 17, the first vibrator 131 and the second vibrator 132 are all electrically connected with the controller 18, and the controller 18 drives the first vibrator 131 to start and stop according to the pressure difference between the first detecting member 15 and the third detecting member 17, and drives the second vibrator 132 to start and stop according to the pressure difference between the second detecting member 16 and the third detecting member 17.

It can be understood that the first detecting element 15, the second detecting element 16 and the third detecting element 17 are all gas pressure detecting elements, and an intelligent pressure transmitter can be adopted; the first detecting member 15 is used for detecting the air pressure in the air inlet pipe 112, the second detecting member 16 is used for detecting the air pressure in the air outlet pipe 113, and the third detecting member 17 is used for detecting the air pressure between the primary filtering unit 121 and the secondary filtering unit 122; the controller 18 is electrically connected with the first detecting member 15, the second detecting member 16, the third detecting member 17, the first vibrator 131 and the second vibrator 132, and is used for receiving pressure signals input by the first detecting member 15, the second detecting member 16, the third detecting member 17 and the first vibrator 131, determining the pressure difference between the first detecting member 15 and the third detecting member 17, sending out command signals according to the pressure difference, starting and stopping the first vibrator 131, determining the pressure difference between the second detecting member 16 and the third detecting member 17, sending out command signals according to the pressure difference, and starting and stopping the second vibrator 132; specifically, the pressure difference between the first detecting element 15 and the third detecting element 17 represents the pressure difference at two sides of the first-stage filtering unit 121, which can reflect the mesh blocking degree on the first-stage filtering unit 121, and when the mesh blocking is serious, the smoke is blocked, and the pressure difference at two sides of the first-stage filtering unit 121 is excessively large, so when the pressure difference is excessively high and exceeds a preset value, the situation that the mesh blocking of the first-stage filtering unit 121 is serious can be determined, and then the first vibrator 131 is started, so that the vibration ash cleaning effect on the first-stage filtering unit 121 is realized, and part of particles attached to the first-stage filtering unit 121 are separated, and blocked meshes are dredged; similarly, the pressure difference between the second detecting element 16 and the third detecting element 17 represents the pressure difference between two sides of the secondary filtering unit 122, which can reflect the mesh blocking degree on the secondary filtering unit 122, when the pressure difference is too high and exceeds a preset value, the serious mesh blocking of the secondary filtering unit 122 can be determined, and then the second vibrator 132 is started to realize the vibration ash cleaning effect on the secondary filtering unit 122, so that part of particles attached to the primary filtering unit 121 are separated, and blocked meshes are dredged; the controller 18 may employ a PLC (programmable logic controller) or a single chip microcomputer.

With continued reference to fig. 1-3, in some embodiments, the collecting device 14 includes a first hopper 141 and a second hopper 142, where the first hopper 141 and the second hopper 142 are located on the bottom surface of the filter house 111 and are in communication with the filter house 111, and the first hopper 141 and the second hopper 142 are disposed corresponding to the primary filter unit 121 and the secondary filter unit 122, respectively.

It will be appreciated that the first hopper 141 and the second hopper 142 are located at the bottom surface of the filter house 111 for receiving the particulates that settle after the flue gas is filtered; the first hopper 141 and the second hopper 142 are respectively arranged corresponding to the first-stage filtering unit 121 and the second-stage filtering unit 122, that is, the first hopper 141 is positioned at the bottom of the first-stage filtering unit 121 to receive the particles deposited after the flue gas is filtered by the first-stage filtering unit 121, and the second hopper 142 is positioned at the bottom of the second-stage filtering unit 122 to receive the particles deposited after the flue gas is filtered by the second-stage filtering unit 122.

With continued reference to fig. 1 to 3 and fig. 5, in some embodiments, the first hopper 141 and the second hopper 142 have the same structure, a first switch member 143 and a second switch member 144 are disposed on the first hopper 141, and the first switch member 143 and the second switch member 144 are disposed on the first hopper 141 at intervals along the height direction and are electrically connected to the controller 18, so as to open or close a channel of the first hopper 141, and the first switch member 143 is located on a top surface of the second switch member 144.

It will be appreciated that the first hopper 141 and the second hopper 142 are hollow and have a passage for the particulate matter to pass through, the upper end of the passage receives the particulate matter which is settled after the flue gas is filtered and is discharged from the bottom, the bottom can receive a collection bag, and the particulate matter can be collected by the collection bag; the upper ends of the first hopper 141 and the second hopper 142 may be provided with a cone structure, in particular, a cone shape or a column cone shape, which is favorable for sedimentation and accumulation of particles in the first hopper 141 and the second hopper 142, and the lower ends of the first hopper 141 and the second hopper 142 may be provided with columns, so that the particles fall down rapidly when the particles are collected, and residues on the inner wall are reduced; the first hopper 141 and the second hopper 142 are respectively provided with a primary switch member 143 and a secondary switch member 144, wherein the primary switch member 143 and the secondary switch member 144 are used for opening and closing a channel, namely, the primary switch member 143 and the secondary switch member 144 are used for controlling the discharge of the particles; wherein, the first-stage switch piece 143 is positioned at one side of the second-stage switch piece 144 close to the filter bin 111 and is arranged at intervals with the second-stage switch piece 144, and when the settled particles pass through the channel, the particles pass through the first-stage switch piece 143 and the second-stage switch piece 144 in sequence; when the first-stage switch piece 143 closes the channel, the settled particles are accumulated above the first-stage switch piece 143, after the first-stage switch piece 143 opens the channel, the second-stage switch piece 144 is closed at the moment, the particles fall on the second-stage switch piece 144 until the second-stage switch piece 144 is opened, and the particles are discharged out of the first hopper 141 or the second hopper 142; through setting up first level switch piece 143 and second grade switch piece 144, can realize that the particulate matter piles up, subsides step by step after filtering, and then conveniently collect the bagging-off to the particulate matter, simultaneously, only need close first level switch piece 143 in the discharge particulate matter in-process, can ensure that particulate matter from first hopper 141 or second hopper 142 in-process filter storehouse 111 does not communicate with external environment, avoid flue gas pollution external environment for the collection bagging-off of particulate matter can not exert an influence to the normal filtration of flue gas; the primary switch member 143 and the secondary switch member 144 may use pneumatic or electric as power, i.e., a pneumatic switch valve or an electric switch valve may be selected, and the channel is opened or closed under pneumatic driving or electric driving; the primary switch member 143 and the secondary switch member 144 are electrically connected with the controller 18, and the controller 18 controls the on and off of the primary switch member 143 and the secondary switch member 144, so that the automatic control of the particulate matter collecting process can be realized.

Referring to fig. 3 and 6 in combination, in some embodiments, an annular clamping portion 1411 and a through hole are provided on an inner wall of the first hopper 141, an annular groove is provided on an inner side of the annular clamping portion 1411, and the through hole is located on one side of the first hopper 141 and communicates with the annular groove; the primary switch piece 143 and the secondary switch piece 144 have the same structure, and the primary switch piece 143 comprises a support bracket 1431, a cylinder 1432 and a flashboard 1433; the supporting frame 1431 is arranged on the first hopper 141; the cylinder 1432 is arranged on the support frame 1431; one end of the shutter 1433 is movably inserted into the annular groove, and the other end of the shutter 1433 protrudes out of the through hole and is connected with the driving end of the air cylinder 1432, and the air cylinder 1432 drives the shutter 1433 to move in the annular groove so as to close or open the channel; the second hopper 142 has the same structure as the first hopper 141; the cylinder 1432 may be replaced by a linear driving structure such as an electric push rod.

Referring to fig. 1, 3 and 4 in combination, in some embodiments, a partition 114 is disposed in the filter house 111, the partition 114 divides the filter house 111 into a first channel 1111 and a second channel 1112, and two ends of the first channel 1111 and the second channel 1112 are respectively communicated with the air inlet pipe 112 and the air outlet pipe 113; the ceramic kiln gas filtration system 10 includes two graded filter screen structures 12, the two graded filter screen structures 12 being located in the first channel 1111 and the second channel 1112, respectively.

It can be appreciated that by providing the partition 114 to divide the filter bin 111 into two filter channels and filtering the flue gas in separate regions, the ceramic kiln flue gas filtering system 10 can be suitable for application scenarios with large flue gas discharge capacity, and is also beneficial to maintaining the normal filtering effect of the graded filter screen structure 12 on the flue gas in one channel when the graded filter screen structure 12 in the other channel is replaced.

Referring to fig. 3 and 4 in combination, in some embodiments, the filter body 11 further includes two first closing doors 115 and two second closing doors 116; the two first closing doors 115 are slidably disposed at the connection position of the air inlet pipe 112 and the filter house 111, and the connection position of the air outlet pipe 113 and the filter house 111, respectively, and are used for closing the two ends of the first channel 1111; the two second closing doors 116 are slidably disposed at the connection position of the air inlet pipe 112 and the filter house 111, and at the connection position of the air outlet pipe 113 and the filter house 111, respectively, and are used for closing the two ends of the second channel 1112.

It can be understood that the two first closing doors 115 and the two second closing doors 116 are both designed in a drawing manner, the two first closing doors 115 are drawn to open or close the two ends of the first channel 1111, the two second closing doors 116 are drawn to open or close the two ends of the second channel 1112, and specifically, when one end of the two first closing doors 115 abuts against the partition 114, the two first closing doors 115, the filter bin 111 and the partition 114 enclose a closed space, that is, the two ends of the first channel 1111 are closed, and the principle that the two second closing doors 116 close the second channel 1112 is the same as the principle that the two first closing doors 115 close the first channel 1111, which is not described in detail; by arranging the two first sealing doors 115 and the two second sealing doors 116, the sealing effect on the first channel 1111 and the second channel 1112 is achieved, so that when the ceramic kiln flue gas filtering system 10 cleans or replaces the classified filter screen structure 12 in the first channel 1111 or the second channel 1112, the flue gas is prevented from continuously escaping into the external environment to cause pollution, and meanwhile, the normal filtering effect of the other can be ensured when the classified filter screen structure 12 in any one of the first channel 1111 and the second channel 1112 is cleaned or replaced independently.

Referring to fig. 4 and fig. 7 in combination, in some embodiments, a first limiting portion 1141 and a second limiting portion 1142 are disposed on the partition 114, the first limiting portion 1141 and the second limiting portion 1142 are both in a shape of a u, one end of the first closing door 115, which is close to the partition 114, is inserted into the first limiting portion 1141, and one end of the second closing door 116, which is close to the partition 114, is inserted into the second limiting portion 1142.

It can be appreciated that when the first closing door 115 or the second closing door 116 is pulled, one end of the first closing door 115 or the second closing door 116, which is close to the partition 114, can be inserted into the first limiting portion 1141 or the second limiting portion 1142 to close the first channel 1111 or the second channel 1112, and by setting the first limiting portion 1141 and the second limiting portion 1142, the reliability of the connection between the first closing door 115 and the second closing door 116 and the partition 114 after the first channel 1111 and the second channel 1112 are closed can be improved, so as to ensure the closing effect on the first channel 1111 and the second channel 1112; specifically, two first limiting portions 1141 are respectively disposed at two ends of one side of the partition 114, and the two first limiting portions 1141 are disposed corresponding to the two first closing doors 115, so that the two first closing doors 115 are respectively inserted into the two first limiting portions 1141; two second limiting parts 1142 are respectively arranged at two ends of the other side of the partition 114, and the two second limiting parts 1142 are correspondingly arranged with the two second closing doors 116, so that the two second closing doors 116 are respectively inserted into the two second limiting parts 1142.

Referring to fig. 4 and 8 in combination, in some embodiments, a plurality of pin holes 1151 are formed on an end of the first closing door 115 and the second closing door 116 facing away from the partition 114, a plurality of pins 1113 are formed on the filter bin 111, the plurality of pins 1113 are disposed corresponding to the plurality of pin holes 1151, and when the first closing door 115 closes the first channel 1111, the plurality of pins 1113 are inserted into the plurality of pin holes 1151 in a one-to-one correspondence manner; by providing the plurality of pins 1113 and the plurality of pin holes 1151, the reliability of the connection between the first closing door 115 and the second closing door 116 and the filter house 111 can be effectively improved when the first closing door 115 closes the first passage 1111 and the second closing door 116 closes the second passage 1112.

Referring to fig. 1 and 4 in combination, in some embodiments, the filter body 11 further includes two first processing gates 117 and two second processing gates 118; the two first processing doors 117 are located at one side of the filtering bin 111, one ends of the two first processing doors 117, which are opposite, are rotatably connected with the filtering bin 111, and the opposite ends of the two first processing doors 117 are abutted against each other; the two second processing doors 118 are both positioned at the other side of the filter bin 111, one ends of the two second processing doors 118, which are opposite, are both rotatably connected with the filter bin 111, and the opposite ends of the two second processing doors 118 are abutted against each other; wherein, the two first processing doors 117 and the two second processing doors 118 are respectively used for closing the openings on two sides of the filter house 111.

It will be appreciated that first processing door 117 and second processing door 118 may be flipped open and closed to facilitate removal of graded filter screen structure 12 from filter house 111 when a user cleans or replaces graded filter screen structure 12; the opposite ends of the two first processing gates 117 abut, and the opposite ends of the two second processing gates 118 abut, particularly in the form of overlapping edge positions.

Referring to fig. 5 and 9, a control method based on the ceramic kiln flue gas filtration system 10 is also provided in a second embodiment of the present application, including:

s100, presetting a first standard pressure difference and a second standard pressure difference;

specifically, the determination of the first standard pressure difference and the second standard pressure difference can be repeatedly verified according to practical applications, so as to ensure specific values of the filtration efficiency of the primary filtration unit 121 and the secondary filtration unit 122 in the hierarchical filter screen structure 12, and ensure that the flue gas generated by the ceramic kiln is stably supplied to the subsequent process for recycling after passing through the ceramic kiln flue gas filtration system 10, for example: when the mesh blockage of the first-stage filter unit 121 is serious and the smoke gas passing is influenced, the pressure difference between the air pressure in the air inlet pipe 112 and the air pressure between the first-stage filter unit 121 and the second-stage filter unit 122 is measured as a first standard pressure difference, and when the mesh blockage of the second-stage filter unit 122 is serious and the smoke gas passing is influenced, the pressure difference between the air pressure in the air outlet pipe 113 and the air pressure between the first-stage filter unit 121 and the second-stage filter unit 122 is measured as a second standard pressure difference;

S200, acquiring the pressure values of the air pressure in the air inlet pipe 112, the air pressure in the air outlet pipe 113 and the air pressure between the first-stage filter unit 121 and the second-stage filter unit 122, calculating the pressure difference between the air pressure in the air inlet pipe 112 and the air pressure between the first-stage filter unit 121 and the second-stage filter unit 122 to obtain a first pressure difference, and calculating the pressure difference between the air pressure in the air outlet pipe 113 and the air pressure between the first-stage filter unit 121 and the second-stage filter unit 122 to obtain a second pressure difference;

s300, comparing the first pressure difference with the first standard pressure difference, and if the first pressure difference is larger than the first standard pressure difference, starting the first vibrator 131 and closing after a certain time;

s400, comparing the second pressure difference with the second standard pressure difference, and if the second pressure difference is larger than the second standard pressure difference, starting the second vibrator 132 and closing after a certain time.

Specifically, the air pressure in the air inlet pipe 112 can be measured by the first detecting member 15, the air pressure in the air outlet pipe 113 can be measured by the second detecting member 16, and the air pressure between the primary filter unit 121 and the secondary filter unit 122 can be measured by the third detecting member 17; accordingly, the pressure values of the air pressure in the air inlet pipe 112, the air pressure in the air outlet pipe 113, and the air pressure between the primary filter unit 121 and the secondary filter unit 122 may be obtained by obtaining the pressure values of the first detecting member 15, the second detecting member 16, and the third detecting member 17; the first pressure difference may represent the pressure difference at two sides of the first filtering unit 121, and may reflect the degree of mesh blockage on the first filtering unit 121, and when the mesh blockage is serious, the smoke is blocked, which may cause the pressure difference at two sides of the first filtering unit 121 to be too large, so when the first pressure difference is greater than the first standard pressure difference, it may be determined that the mesh blockage of the first filtering unit 121 is serious, and then the first vibrator 131 is started to perform vibration ash removal on the first filtering unit 121, and after a certain time, the first vibrator is closed, so that some particles attached to the first filtering unit 121 are separated, and the blocked meshes are dredged; similarly, the second pressure difference represents the pressure difference at two sides of the secondary filter unit 122, and can reflect the mesh blocking degree on the secondary filter unit 122, when the second pressure difference is greater than the second standard pressure difference, it can be determined that the mesh blocking of the secondary filter unit 122 is serious, and then the second vibrator 132 is started to vibrate the secondary filter unit 122 to clean ash, and is closed after a certain time, so that part of particles attached to the secondary filter unit 122 are separated, and blocked meshes are dredged; the holding time after the first vibrator 131 and the second vibrator 132 are started may be set according to actual production requirements, so as to achieve effective cleaning of the primary filter unit 121 and the secondary filter unit 122.

It can be appreciated that the determination of the blocking condition of the primary filter unit 121 or the secondary filter unit 122 is realized by judging the differential pressure between the two sides of the primary filter unit 121 and the secondary filter unit 122, so as to control the vibration action of the first vibrator 131 and the second vibrator 132 on the primary filter unit 121 and the secondary filter unit 122 respectively, realize the automatic ash cleaning function of the primary filter unit 121 and the secondary filter unit 122, effectively ensure the flue gas filtering efficiency of the ceramic kiln flue gas filtering system 10 in the continuous use process, avoid influencing the normal production, and prolong the cleaning or replacement period of the primary filter unit 121 and the secondary filter unit 122.

In some embodiments, the step S300 further comprises:

s30, recording the first starting times of the first vibrator 131, and after the first starting times reach a first starting preset value, starting the primary switch piece 143 and keeping for a certain time, and then closing;

specifically, when the first vibrator 131 is started once, a part of particles attached to the first stage filter unit 121 are separated and fall into the first hopper 141, and as the starting times increase, the particles in the first hopper 141 are accumulated higher and higher, after the first vibrator 131 is started for a certain times, the first stage switch piece 143 in the first hopper 141 is correspondingly started, so that the accumulated particles continue to fall down and fall onto the second stage switch piece 144, and the phenomenon that the accumulated particles are excessively accumulated on the first stage switch piece 143 to cover the filter screen of the first stage filter unit 121 is avoided; the first predetermined value refers to the number of times of starting the first vibrator 131 set to cover up the filter screen of the first stage filter unit 121 while avoiding the excessive accumulation of particulate matter on the first stage switch member 143, and can be determined by repeated verification according to actual application conditions; in addition, after the first number of starts reaches the first start-up predetermined value, the first number of starts of the first vibrator 131 is re-recorded;

S31, recording the first opening times of the primary switch piece 143, and opening the secondary switch piece 144 after the first opening times reach a first opening preset value and keeping the primary switch piece closed after a certain time.

Specifically, a containing space is formed between the first-stage switch piece 143 and the second-stage switch piece 144, when the first-stage switch piece 143 is turned on once, the particles accumulated on the first-stage switch piece 143 fall into the containing space, and as the number of times of turning on increases, the particles accumulated in the containing space are higher and higher, and after the first-stage switch piece 143 is turned on for a certain number of times, the second-stage switch piece 144 in the first hopper 141 is correspondingly turned on, so that the particles accumulated in the containing space are collected and bagged; the second predetermined value refers to the number of times of opening of the primary switch member 143 set to avoid excessive accumulation of particulate matter on the secondary switch member 144, and can be determined by repeated verification according to actual application conditions; the holding time of the first-stage switch member 143 and the second-stage switch member 144 after being turned on can be set according to actual production requirements, so as to realize that accumulated particulate matters are discharged as much as possible; in addition, after the first opening times reach the first opening predetermined value, the first opening times of the one-stage switching piece 143 are re-recorded;

It can be appreciated that through the above steps, the automatic control of the process of discharging the flue gas from the first hopper 141 and filtering and settling the particulate matters is realized, so that the filtering effect of the ceramic kiln flue gas filtering system 10 on the flue gas in the continuous use process is effectively ensured.

In some embodiments, the step S30 further includes:

judging whether the starting times of the first vibrator 131 in the preset time is larger than a first limit value, and if so, sending a cleaning alarm prompt.

It can be understood that, after the primary filter unit 121 is used for a long time, scale deposition is unavoidable, and is not easy to fall off under the vibration action, so that the mesh size of the filter screen of the primary filter unit 121 is reduced, and the primary filter unit 121 is easy to generate a blocking phenomenon in flue gas filtration, and the blocking phenomenon is reflected on the differential pressure (i.e. the first differential pressure) at two sides of the primary filter unit 121, namely, the time that the first differential pressure reaches the first standard differential pressure is shortened, and further the starting frequency of the first vibrator 131 is increased within a certain time; judging whether the starting times of the first vibrator 131 exceeds a limit value in a preset time by presetting a first limit value, so as to judge that the first-stage filter unit 121 is seriously fouled after long-term use, and further sending a cleaning alarm prompt to an operator so as to remind the operator to clean and replace the filter unit, thereby avoiding affecting the filtering efficiency of the flue gas; the first limit value may be determined by repeated verification in practical applications, and the number of times of starting the first vibrator 131 in a certain period of time may be counted as the predetermined time, and the number of times of starting may be used as the first limit value, after the first stage filter unit 121 has serious fouling.

In some embodiments, the step S400 further includes:

s40, recording the second starting times of the second vibrator 132, and after the second starting times reach a second starting preset value, starting the primary switch piece 143 and keeping for a certain time, and then closing;

s41, recording the second opening times of the primary switch piece 143, and opening the secondary switch piece 144 after the second opening times reach a second opening preset value and keeping the secondary switch piece closed after a certain time.

It will be appreciated that the second activation count refers to the number of times the primary switch in the second hopper 142 is turned on; the above steps realize the automatic control of the discharging process of the settled particulate matters after the smoke gas in the second hopper 142 is filtered, and the control principle is the same as that of the first hopper 141, so that the filtering effect of the smoke gas filtering system 10 of the ceramic kiln in the continuous use process can be effectively ensured.

In some embodiments, the step S40 further includes:

and judging whether the starting times of the second vibrator 132 in the preset time is larger than a second limit value, and if so, sending out a cleaning alarm prompt.

It can be appreciated that through the above steps, the secondary filter unit 122 is judged to be seriously fouled after long-term use, and further a cleaning alarm prompt is sent to an operator to remind the operator and the filter unit that cleaning and replacement are needed, so that the influence on the filtering efficiency of the flue gas is avoided; the second limit value may be determined by repeated verification in practical applications, and the number of times of starting the second vibrator 132 in a certain period of time may be counted according to the serious fouling phenomenon of the secondary filter unit 122, and the period of time is taken as a predetermined time, and the number of times of starting is taken as the second limit value.

In some embodiments, the step S400 further includes:

s500, presetting a third standard pressure difference and a fourth standard pressure difference;

s600, comparing the first pressure difference with the third standard pressure difference, and sending out a cleaning alarm prompt if the first pressure difference is larger than the third standard pressure difference;

s700, comparing the second pressure difference with the fourth standard pressure difference, and sending out a cleaning alarm prompt if the second pressure difference is larger than the fourth standard pressure difference.

It can be understood that after the serious blockage phenomenon occurs in the filter screen holes of the primary filter unit 121 or the secondary filter unit 122, the differential pressure on both sides of the primary filter unit 121 is excessively large, i.e. the first differential pressure is excessively large, or the differential pressure on both sides of the secondary filter unit 122 is excessively large, i.e. the second differential pressure is excessively large, by setting the third standard differential pressure and the fourth standard differential pressure, comparing the magnitudes of the first differential pressure and the third standard differential pressure, and comparing the magnitude of the second differential pressure and the fourth standard differential pressure, so as to determine whether the serious blockage phenomenon occurs in the primary filter unit 121 or the secondary filter unit 122, and further send a cleaning alarm prompt to remind an operator that the primary filter unit 121 or the secondary filter unit 122 needs to be cleaned (or replaced); the third standard differential pressure and the fourth standard differential pressure can be determined by repeated verification in practical application, and can be determined according to the detected first differential pressure and the detected second differential pressure after the serious blockage phenomenon occurs in the primary filter unit 121 and the secondary filter unit 122, and then the first differential pressure is used as the third standard differential pressure, and the second differential pressure is used as the fourth standard differential pressure; through the steps, the judgment of the serious blockage phenomenon of the primary filter unit 121 or the secondary filter unit 122 is realized, and then a cleaning alarm prompt is sent to an operator to remind the operator and the filter unit that the filter unit needs to be cleaned and replaced, so that the filtering effect of the smoke is prevented from being influenced.

In summary, the present application provides a ceramic kiln flue gas filtration system and a control method thereof, the ceramic kiln flue gas filtration system includes: the filtering main body comprises a filtering bin, an air inlet pipe and an air outlet pipe; the grading filter screen structure is arranged in the filter bin and is obliquely arranged towards one side of the air inlet pipe along the height direction and used for filtering flue gas; the vibrating mechanism is arranged on the filter bin, and one end of the vibrating mechanism extends into the filter bin and is connected with the grading filter screen structure for driving the grading filter screen structure to vibrate; and the collecting device is arranged at the bottom of the filtering bin. The flue gas enters a filtering bin from an air inlet pipe and is discharged from an air outlet pipe, and a grading filter screen structure is arranged in the filtering bin to filter the flue gas; after filtering, partial dust and other particles in the flue gas are attached to the hierarchical filter screen structure, the vibrating mechanism is connected with the hierarchical filter screen structure to drive the hierarchical filter screen structure to vibrate, so that the partial attached particles fall off, the rapid dust accumulation on the hierarchical filter screen structure is avoided, the blockage is caused, the ceramic kiln flue gas filtering system completes the automatic cleaning of the dust accumulation on the hierarchical filter screen structure in the flue gas continuous filtering process, and the cleaning process does not affect the normal production.

It is to be understood that the application of the present application is not limited to the examples described above, but that modifications and variations can be made by a person skilled in the art from the above description, all of which modifications and variations are intended to fall within the scope of the claims appended hereto.

Claims (10)

1. A ceramic kiln flue gas filtration system, comprising:

the filtering main body comprises a filtering bin, an air inlet pipe and an air outlet pipe;

the grading filter screen structure is arranged in the filter bin, is obliquely arranged towards one side of the air inlet pipe along the height direction and is used for filtering flue gas;

the vibrating mechanism is arranged on the filtering bin, and one end of the vibrating mechanism stretches into the filtering bin and is connected with the grading filter screen structure to drive the grading filter screen structure to vibrate;

and the collecting device is arranged at the bottom of the filtering bin.

2. The ceramic kiln flue gas filtration system of claim 1, wherein the hierarchical filter screen structure comprises:

the first-stage filtering unit and the second-stage filtering unit are arranged at intervals along the air inlet direction of the filtering bin, and the first-stage filtering unit is positioned at one side of the second-stage filtering unit close to the air inlet pipe;

The vibration mechanism includes:

the first vibrator and the second vibrator are respectively connected with the primary filtering unit and the secondary filtering unit.

3. The ceramic kiln flue gas filtration system of claim 2, further comprising:

the first detection part is arranged on the air inlet pipe and is used for detecting the air pressure in the air inlet pipe;

the second detection piece is arranged on the air outlet pipe and is used for detecting the air pressure in the air outlet pipe;

the third detection piece is arranged on the filter bin and is used for detecting the air pressure between the primary filter unit and the secondary filter unit;

the controller, first detecting piece, the second detecting piece, the third detecting piece, the first vibrator and the second vibrator all with the controller electricity is connected, the controller is according to first detecting piece with the pressure differential drive of third detecting piece the start-stop of first vibrator, and according to the second detecting piece with the pressure differential drive of third detecting piece the start-stop of second vibrator.

4. A ceramic kiln flue gas filtration system according to claim 3, wherein the collecting means comprises:

the first hopper and the second hopper are both positioned on the bottom surface of the filtering bin and communicated with the filtering bin, and the first hopper and the second hopper are respectively and correspondingly arranged with the primary filtering unit and the secondary filtering unit.

5. The ceramic kiln flue gas filtration system of claim 4, wherein the ceramic kiln flue gas filtration system comprises a ceramic filter,

the first hopper and the second hopper are identical in structure, a first-stage switch piece and a second-stage switch piece are arranged on the first hopper, the first-stage switch piece and the second-stage switch piece are arranged on the first hopper at intervals along the height direction, and are electrically connected with the controller and used for opening or closing a channel of the first hopper, and the first-stage switch piece is positioned on the top surface of the second-stage switch piece.

6. The ceramic kiln flue gas filtering system according to claim 1, wherein a partition plate is arranged in the filtering bin, the partition plate divides the filtering bin into a first channel and a second channel, and two ends of the first channel and two ends of the second channel are respectively communicated with the air inlet pipe and the air outlet pipe;

The ceramic kiln flue gas filtering system comprises two hierarchical filter screen structures, and the two hierarchical filter screen structures are respectively located in the first channel and the second channel.

7. The ceramic kiln flue gas filtration system of claim 6, wherein the filter body further comprises:

the two first sealing doors are respectively arranged at the connecting positions of the air inlet pipe and the filtering bin in a sliding manner, and the connecting positions of the air outlet pipe and the filtering bin are used for sealing the two ends of the first channel;

the two second sealing doors are respectively arranged at the connecting positions of the air inlet pipe and the filtering bin in a sliding mode, and the connecting positions of the air outlet pipe and the filtering bin are used for sealing the two ends of the second channel.

8. The ceramic kiln flue gas filtration system of claim 1, wherein the filter body further comprises:

the two first treatment doors are positioned on one side of the filter bin, one ends of the two first treatment doors, which are opposite, are rotationally connected with the filter bin, and the opposite ends of the two first treatment doors are propped against each other;

The two second treatment doors are positioned on the other side of the filter bin, one ends of the two second treatment doors, which are opposite, are rotationally connected with the filter bin, and the opposite ends of the two second treatment doors are propped against each other;

the two first treatment doors and the two second treatment doors are respectively used for closing openings on two sides of the filter bin.

9. A control method based on the ceramic kiln flue gas filtration system of any one of claims 2 to 5, comprising:

presetting a first standard pressure difference and a second standard pressure difference;

acquiring the pressure values of the air pressure in the air inlet pipe, the air pressure in the air outlet pipe and the air pressure between the primary filter unit and the secondary filter unit, calculating the pressure difference between the air pressure in the air inlet pipe and the air pressure between the primary filter unit and the secondary filter unit to obtain a first pressure difference, and calculating the pressure difference between the air pressure in the air outlet pipe and the air pressure between the primary filter unit and the secondary filter unit to obtain a second pressure difference;

comparing the first pressure difference with the first standard pressure difference, and if the first pressure difference is larger than the first standard pressure difference, starting a first vibrator and closing after a certain time is kept;

And comparing the second pressure difference with the second standard pressure difference, and if the second pressure difference is larger than the second standard pressure difference, starting a second vibrator and closing after a certain time is kept.

10. The control method according to claim 9, wherein comparing the second differential pressure with the second standard differential pressure, if the second differential pressure is greater than the second standard differential pressure, turning on a second vibrator and turning off after a certain time, further comprising:

presetting a third standard differential pressure and a fourth standard differential pressure;

comparing the first pressure difference with the third standard pressure difference, and sending a cleaning alarm prompt if the first pressure difference is larger than the third standard pressure difference;

and comparing the second pressure difference with the fourth standard pressure difference, and sending out a cleaning alarm prompt if the second pressure difference is larger than the fourth standard pressure difference.

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