CN218653578U - Ceramic kiln flue gas filtration system - Google Patents

Abstract

The application relates to ceramic kiln flue gas filtration technical field provides a ceramic kiln flue gas filtration system, includes: the filter body comprises a filter bin, an air inlet pipe and an air outlet pipe; the graded 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, one end of the vibrating mechanism extends into the filtering bin and is connected with the grading filter screen structure and used for driving the grading filter screen structure to vibrate; and the collecting device is arranged at the bottom of the filtering bin. The vibrating mechanism is connected with the grading filter screen structure and drives the grading filter screen structure to vibrate, so that the attached particles on the grading filter screen structure fall off, the dust can be prevented from being rapidly accumulated on the grading filter screen structure, the blockage is avoided, the automatic cleaning of the dust accumulation is completed in the normal smoke filtering process, and the influence on the normal production is avoided.

Description

Ceramic kiln flue gas filtration system

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.

Background

The heat content of the ceramic kiln flue gas is a part of the 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 fed into a drying kiln for utilization so as to reduce the energy consumption of the drying kiln, thereby achieving the purposes of energy conservation and emission reduction; however, the flue gas of the ceramic kiln contains smoke dust, ceramic fiber and the like with different particle sizes, and has higher moisture content, and the problems of scaling on the pipe wall, blockage of the blowpipe by the ceramic fiber or the smoke dust and the like easily occur in the process of directly utilizing the flue gas by equipment, so that the conditions of low heat exchange efficiency or insufficient air supply quantity are caused, and the heat exchange quantity is influenced or the drying efficiency is reduced. Therefore, the flue gas of the ceramic kiln needs to be recycled after being subjected to dust removal treatment. General dust pelletizing system (for example sack cleaner or desulfurizing tower) area is big or system resistance is big in kiln flue gas system, and flue gas filter efficiency is not high, does not have the dust clearance function usually moreover, needs artifical frequent manual clearance, wastes time and energy, and then influences normal production.

Therefore, the prior art has defects and needs to be improved and developed.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the ceramic kiln flue gas filtering system is provided, and aims to solve 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 energy and influences normal production.

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

the filter comprises a filter main body, a filter cover and a filter cover, wherein the filter main body comprises a filter bin, an air inlet pipe and an air outlet pipe;

the graded 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 smoke;

the vibration mechanism is arranged on the filter bin, one end of the vibration mechanism extends into the filter bin and is connected with the graded filter screen structure and used for driving the graded filter screen structure to vibrate;

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

Optionally, the graded filter screen structure comprises:

the primary filtering unit and the secondary filtering unit are arranged at intervals along the air inlet direction of the filtering bin, and the primary filtering unit is positioned on one side of the secondary 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 filtering system further comprises:

the first detection piece is arranged on the air inlet pipe and 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 filtering bin and used for detecting the air pressure between the primary filtering unit and the secondary filtering unit;

the controller drives the first vibrator to start and stop according to the pressure difference between the first detection piece and the third detection piece and drives the second vibrator to start and stop according to the pressure difference between the second detection piece and the third detection piece.

Optionally, the collecting means comprises:

the first hopper and the second hopper are located on the bottom surface of the filtering bin and communicated with the filtering bin, and the first hopper and the second hopper are respectively arranged corresponding to the primary filtering unit and the secondary filtering unit.

Optionally, the first hopper and the second hopper have the same structure, the first hopper is provided with a first-stage switch element and a second-stage switch element, the first-stage switch element and the second-stage switch element are arranged in the first hopper at intervals along the height direction, and are electrically connected with the controller, and are used for opening or closing the channel of the first hopper, and the first-stage switch element is located on the top surface of the second-stage switch element.

Optionally, the primary filtering unit and the secondary filtering unit are formed by overlapping a plurality of V-shaped filtering nets.

Optionally, 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 the second channel are respectively communicated with the air inlet pipe and the air outlet pipe;

the ceramic kiln smoke filtering system comprises two graded filter screen structures, and the two graded filter screen structures are respectively positioned in the first channel and the second channel.

Optionally, the filter body further comprises:

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

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

Optionally, the partition plate is provided with a first limiting portion and a second limiting portion, the first limiting portion and the second limiting portion are U-shaped, one end of the first closed door close to the partition plate is inserted into the first limiting portion, and one end of the second closed door close to the partition plate is inserted into the second limiting portion.

Optionally, the filter body further comprises:

the two first treatment doors are positioned on one side of the filtering bin, the opposite ends of the two first treatment doors are rotatably connected with the filtering bin, and the opposite ends of the two first treatment doors are abutted;

the two second treatment doors are positioned on the other side of the filter bin, the opposite ends of the two second treatment doors are rotatably connected with the filter bin, and the opposite ends of the two second treatment doors are abutted against each other;

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

The application provides a ceramic kiln flue gas filtering system, flue gas enters a filtering bin from an air inlet pipe and is discharged from an air outlet pipe, and a graded filtering net structure is arranged in the filtering bin to filter the flue gas; after filtering, particulate matters such as part of smoke and dust in the flue gas, ceramic fiber and the like are attached to the classified filter screen structure, the vibrating mechanism is connected with the classified filter screen structure, and the classified filter screen structure is driven to vibrate, so that part of the attached particulate matters fall off, the dust can be prevented from being rapidly accumulated on the classified filter screen structure, the blockage is caused, the ceramic kiln flue gas filtering system can automatically clean the dust accumulated on the classified filter screen structure in the continuous filtering process of the flue gas, and the normal production is not influenced in the cleaning process.

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 perspective view in cross section of a ceramic kiln flue gas filtration system provided herein;

FIG. 4 is a schematic perspective view in cross section 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 view of section A of FIG. 3 of the present application;

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

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

FIG. 9 is a flow chart of a control method of a ceramic kiln flue gas filtration system provided herein;

description of reference numerals:

10. a ceramic kiln flue gas filtration system; 11. a filter body; 12. a hierarchical filter screen structure; 13. a vibration mechanism; 14. a collection 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 bolt; 1141. a first limiting part; 1142. a second limiting part; 1151. a pin hole; 121. a primary filtration unit; 122. a secondary filtration 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 primary switching element; 144. a secondary switching element; 1411. an annular clamping portion; 1431. a support frame; 1432. a cylinder; 1433. a gate plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application clearer and clearer, the present application is further described in detail below by referring to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Based on 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 influences normal production, the ceramic kiln flue gas filtration system is provided, flue gas enters a filtration bin from a gas inlet pipe and is discharged from a gas outlet pipe, and a graded filter screen structure is arranged in the filtration bin to filter the flue gas; after filtration, part of particulate matters such as smoke dust and ceramic fibers in the smoke are attached to the graded filter screen structure, the vibration mechanism is connected with the graded filter screen structure and drives the graded filter screen structure to vibrate, so that part of the attached particulate matters fall off, and the rapid dust accumulation on the graded filter screen structure is avoided to cause blockage, so that the automatic cleaning of the dust accumulation on the graded filter screen structure is completed in the continuous smoke filtering process of the ceramic kiln smoke filtering system, and the normal production is not influenced in the cleaning process; for details, reference will be made to the following embodiments.

Referring to fig. 1 and fig. 2 in combination, a first embodiment of the present application provides a ceramic kiln flue gas filtering system 10, which includes a filtering main body 11, a graded filtering net structure 12, a vibrating mechanism 13 and a collecting device 14; the filtering main body 11 comprises a filtering bin 111, an air inlet pipe 112 and an air outlet pipe 113; the grading filter screen structure 12 is arranged in the filter bin 111, and is obliquely arranged towards one side of the air inlet pipe 112 along the height direction, and is used for filtering 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, so as to drive the graded filter screen structure 12 to vibrate; the collecting device 14 is disposed at the bottom of the filtering bin 111.

It can be understood that the existing ceramic kiln flue gas filtering system 10 does not have a dust cleaning function, and a filter screen is often blocked in use, so that the filtering efficiency is reduced, manual and frequent dust cleaning is needed to ensure the filtering efficiency in use, the cleaning process is time-consuming and labor-consuming, and normal production is influenced; the ceramic kiln flue gas filtering system 10 is used for filtering flue gas generated by a ceramic kiln so as to facilitate subsequent heat exchange or supply the flue gas to a drying kiln for recycling; the flue gas enters the filtering bin 111 from the air inlet pipe 112 and is discharged from the air outlet pipe 113, and the filtering bin 111 is internally provided with a grading filter screen structure 12 for filtering the flue gas; after filtration, part of particulate matters such as smoke dust and ceramic fibers in the smoke are attached to the graded filter screen structure 12, the vibration mechanism 13 is connected with the graded filter screen structure 12 and drives the graded filter screen structure 12 to vibrate, so that part of the attached particulate matters fall off, and blockage caused by rapid dust deposition on the graded filter screen structure 12 is avoided, so that the automatic cleaning of the dust deposition on the graded filter screen structure 12 is completed in the smoke continuous filtration process of the ceramic kiln smoke filtration system 10, and the normal production is not influenced in the cleaning process (the machine does not need to stop for dust removal);

specifically, the filtering main body 11 includes 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 the ceramic kiln enters the filtering bin 111 from the air inlet pipe 112 and is then 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 utilization through a smoke exhaust fan; the grading filter screen structure 12 is arranged in the filter bin 111 and used for filtering flue gas; 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 right 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 particulate matters such as smoke dust, ceramic fibers and the like in the flue gas are attached to the grading filter screen structure 12, and the other part of particulate matters is blocked by the grading filter screen structure 12, then is decelerated and is settled under the action of gravity; the graded filter screen structure 12 is obliquely arranged towards one side of the air inlet pipe 112 along the height direction, so that the particles such as smoke dust, ceramic fiber and the like in the smoke can fall and settle without obstruction after being blocked by the graded filter screen structure 12; the collecting device 14 is installed at the bottom of the filtering bin 111, is communicated with the inside of the filtering bin 111, and is used for receiving particulate matters such as smoke dust and ceramic fibers in the smoke; the vibration mechanism 13 is installed on the filtering bin 111, and one end of the vibration mechanism 13 extends into the filtering bin 111 and is connected with the graded filter screen structure 12 to transfer the vibration effect; under the vibration action of the vibration mechanism 13, the particulate matter partially attached to the graded filter screen structure 12 falls off and falls into the collection device 14; the dust removal of the grading filter screen structure 12 is realized through the vibration effect of the vibration mechanism 13, the dust deposition speed of the grading filter screen structure 12 can be reduced, the cleaning or replacing 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 needed, and further the influence on the normal production is avoided; hierarchical filter screen structure 12 is long-term after using, and inevitable can produce scaling, and then influences filtration efficiency, needs to tear out back clearance or change hierarchical filter screen structure 12, and through the vibration effect, intermittent type nature to hierarchical filter screen structure 12 vibration deashing, can effectually slow down scaling speed, and then prolongs hierarchical filter screen structure 12's clearance or change cycle.

Referring to fig. 1 to fig. 3, in some embodiments, the graded filter screen structure 12 includes a first-stage filter unit 121 and a second-stage filter unit 122, the first-stage filter unit 121 and the second-stage filter unit 122 are disposed at an interval along an air intake direction of the filter bin 111, and the first-stage filter unit 121 is located on a side of the second-stage filter unit 122 close to the air intake 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 filtering unit 121 and the secondary filtering unit 122 are obliquely arranged towards one side of the air inlet pipe 112 along the height direction, the primary filtering unit 121 and the secondary filtering unit 122 are sequentially installed in the filtering bin 111 and are arranged in the air inlet direction at intervals, the ceramic kiln flue gas enters the filtering bin 111 from the air inlet pipe 112 and sequentially passes through the primary filtering unit 121 and the secondary filtering unit 122, two-stage filtering of the ceramic kiln flue gas is achieved, the filtering 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 velocity of the flue gas is reduced to be below 3.5m/s, the coarse particles in the flue gas of the ceramic kiln are settled by the action of gravity before entering the primary filtering unit 121 and fall into the collecting device 14, a part of the fine and coarse particles are blocked and filtered when entering the primary filtering unit 121, the flue gas has a certain speed reduction when passing through the primary filtering unit 121, and is settled by the action of gravity after passing through the space between the primary filtering unit 121 and the secondary filtering unit, and finally enters the secondary filtering unit 122, and a part of the particles remained in the flue gas are blocked and filtered; most of particulate matters contained in the flue gas can be filtered and removed through the primary filtering unit 121 and the secondary filtering unit 122, and the dust content is reduced by more than 90%; the first vibrator 131 and the second vibrator 132 are respectively connected with the primary filtering unit 121 and the secondary filtering unit 122, and under the driving action of the first vibrator 131 and the second vibrator 132, the vibration dust cleaning action on the primary filtering unit 121 and the secondary filtering unit 122 is realized, the dust deposition speed of the primary filtering unit 121 and the secondary filtering unit 122 can be reduced, and the cleaning or replacing period of the primary filtering unit 121 and the secondary filtering unit 122 is prolonged; the first vibrator 131 and the second vibrator 132 have the same structure, and specifically, a vibration driving structure such as a vibration motor or a vibration cylinder may be adopted.

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

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

Referring to fig. 1, 3 and 5 in combination, in some embodiments, the ceramic kiln flue gas filtering system 10 further includes a first detecting element 15, a second detecting element 16, a third detecting 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 part 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 element 17 is disposed on the filtering bin 111, and is configured to detect air pressure between the primary filtering unit 121 and the secondary filtering unit 122; the first detecting element 15, the second detecting element 16, the third detecting element 17, the first vibrator 131 and the second vibrator 132 are all electrically connected to 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 element 15 and the third detecting element 17, and drives the second vibrator 132 to start and stop according to the pressure difference between the second detecting element 16 and the third detecting element 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 part 15 is used for detecting the air pressure in the air inlet pipe 112, the second detecting part 16 is used for detecting the air pressure in the air outlet pipe 113, and the third detecting part 17 is used for detecting the air pressure between the first-stage filtering unit 121 and the second-stage 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 a pressure difference between the first detecting member 15 and the third detecting member 17, sending a command signal according to the pressure difference, starting and stopping the first vibrator 131, determining a pressure difference between the second detecting member 16 and the third detecting member 17, sending a command signal 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 between two sides of the primary filtering unit 121, which can reflect the clogging degree of the mesh on the primary filtering unit 121, and when the mesh is clogged seriously, the smoke is blocked, which may cause the too large pressure difference between two sides of the primary filtering unit 121, so that when the pressure difference is too high and exceeds a preset value, the serious clogging of the mesh of the primary filtering unit 121 may be determined, and the first vibrator 131 is further started to realize the vibrating ash removal effect on the primary filtering unit 121, so that part of particles attached to the primary filtering unit 121 are separated, and the clogged mesh is 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 degree of pore blockage on the secondary filtering unit 122, and when the pressure difference is too high and exceeds a preset value, it can be determined that the pore blockage of the secondary filtering unit 122 is serious, and then the second vibrator 132 is started to realize the vibrating ash removal effect on the secondary filtering unit 122, so that part of the particulate matters attached to the primary filtering unit 121 are separated to dredge the blocked pores; the controller 18 may be a PLC (programmable logic controller) or a single chip microcomputer.

With continuing reference to fig. 1 to 3, in some embodiments, the collecting device 14 includes a first hopper 141 and a second hopper 142, the first hopper 141 and the second hopper 142 are both located on the bottom surface of the filtering bin 111 and communicate with the filtering bin 111, and the first hopper 141 and the second hopper 142 are respectively disposed corresponding to the primary filtering unit 121 and the secondary filtering unit 122.

It can be understood that the first hopper 141 and the second hopper 142 are located at the bottom of the filtering bin 111, and are used for receiving the particles settled after the flue gas is filtered; the first hopper 141 and the second hopper 142 are respectively disposed corresponding to the first-stage filtering unit 121 and the second-stage filtering unit 122, that is, the first hopper 141 is located at the bottom of the first-stage filtering unit 121 to receive the particles settled after the flue gas is filtered by the first-stage filtering unit 121, and the second hopper 142 is located at the bottom of the second-stage filtering unit 122 to receive the particles settled after the flue gas is filtered by the second-stage filtering unit 122.

With continuing reference to fig. 1 to 3 and 5, in some embodiments, the first hopper 141 and the second hopper 142 have the same structure, a primary switch element 143 and a secondary switch element 144 are disposed on the first hopper 141, the primary switch element 143 and the secondary switch element 144 are disposed on the first hopper 141 at intervals along the height direction and are electrically connected to the controller 18 for turning on or off the channel of the first hopper 141, and the primary switch element 143 is disposed on the top surface of the secondary switch element 144.

It can be understood that the first hopper 141 and the second hopper 142 are hollow structures, and have channels for the passage of particulate matter, the upper ends of the channels receive the particulate matter settled after the flue gas filtration and discharge the particulate matter from the bottom, and the bottom can be connected with 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 set to be cone-shaped structures, specifically, cone-shaped or column-cone-shaped structures, which is beneficial for settling and accumulating the 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 set to be column-shaped structures, so that the particles fall down rapidly when being collected, and the residue of the inner wall is reduced; the first hopper 141 and the second hopper 142 are respectively provided with a primary switch 143 and a secondary switch 144, the primary switch 143 and the secondary switch 144 are used for opening and closing the channels, namely the primary switch 143 and the secondary switch 144 are used for controlling the discharge of the particulate matters; wherein, the primary switch element 143 is located at one side of the secondary switch element 144 close to the filter bin 111, and is arranged at an interval with the secondary switch element 144, and when the settled particles pass through the channel, the particles pass through the primary switch element 143 and the secondary switch element 144 in sequence; when the first-stage switch element 143 closes the channel, settled particles are accumulated above the first-stage switch element 143, and after the first-stage switch element 143 opens the channel, the second-stage switch element 144 is closed, and the particles fall on the second-stage switch element 144 until the second-stage switch element 144 is opened, and the particles are discharged out of the first hopper 141 or the second hopper 142; by arranging the first-stage switch element 143 and the second-stage switch element 144, the particles after being filtered can be accumulated and settled step by step, and the particles can be conveniently collected and bagged, meanwhile, the filter bin 111 can be ensured not to be communicated with the external environment in the process of discharging the particles from the first hopper 141 or the second hopper 142 only by closing the first-stage switch element 143 in the process of discharging the particles, so that the external environment is prevented from being polluted by smoke, and the collection and bagging of the particles cannot be influenced in the normal filtration of the smoke; the primary switch element 143 and the secondary switch element 144 may be powered by pneumatic or electric power, that is, a pneumatic switch valve or an electric switch valve may be selected to open or close the channel under pneumatic or electric driving; the primary switch element 143 and the secondary switch element 144 are electrically connected to the controller 18, and the controller 18 controls the primary switch element 143 and the secondary switch element 144 to be turned on or off, so as to automatically control the particle collecting process.

Referring to fig. 3 and fig. 6, in some embodiments, an annular clamping portion 1411 and a through hole are disposed on an inner wall of the first hopper 141, an annular groove is disposed on an inner side of the annular clamping portion 1411, and the through hole is disposed on one side of the first hopper 141 and is communicated with the annular groove; the primary switch element 143 and the secondary switch element 144 have the same structure, and the primary switch element 143 includes a support frame 1431, a cylinder 1432 and a shutter 1433; the supporting frame 1431 is disposed on the first hopper 141; the cylinder 1432 is arranged on the support frame 1431; one end of the gate plate 1433 is movably inserted into the annular groove, the other end of the gate plate 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 gate plate 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 air cylinder 1432 may be replaced with linear driving structure such as electric push rod.

Referring to fig. 1, fig. 3 and fig. 4 in combination, in some embodiments, a partition plate 114 is disposed in the filter cartridge 111, the partition plate 114 divides the filter cartridge 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 flue gas filtering system 10 comprises two classifying filter screen structures 12, wherein the two classifying filter screen structures 12 are respectively positioned in the first channel 1111 and the second channel 1112.

It can be understood that, by arranging the partition plate 114, the filter bin 111 is divided into two filter channels, and the flue gas is filtered by regions, so that the ceramic kiln flue gas filtering system 10 can be applied to an application scene 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 another channel when the graded filter screen structure 12 in one 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 respectively arranged at the connecting position of the air inlet pipe 112 and the filter bin 111 and the connecting position of the air outlet pipe 113 and the filter bin 111 in a sliding manner, and are used for closing two ends of the first channel 1111; the two second closing doors 116 are slidably disposed at a connection position of the air inlet pipe 112 and the filter bin 111, and at a connection position of the air outlet pipe 113 and the filter bin 111, respectively, and are used for closing 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 of a pull-out design, and the two first closing doors 115 are pulled to open or close the two ends of the first channel 1111 and the two second closing doors 116 are pulled to open or close the two ends of the second channel 1112, specifically, when one end of the two first closing doors 115 abuts against the partition plate 114, the two first closing doors 115, the filter bin 111 and the partition plate 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, and detailed description is omitted; by arranging the two first closing doors 115 and the two second closing doors 116, the first channel 1111 and the second channel 1112 are closed, so that when the ceramic kiln flue gas filtering system 10 cleans or replaces the graded filter screen structures 12 in the first channel 1111 or the second channel 1112, the continuous escape of flue gas to the external environment is avoided, the pollution is caused, and meanwhile, when the graded filter screen structures 12 in any one of the first channel 1111 and the second channel 1112 can be cleaned or replaced independently, the normal filtering function of the other one is ensured.

Referring to fig. 4 and 7, in some embodiments, the partition plate 114 is provided with a first position-limiting portion 1141 and a second position-limiting portion 1142, the first position-limiting portion 1141 and the second position-limiting portion 1142 are u-shaped, one end of the first closed door 115 close to the partition plate 114 is inserted into the first position-limiting portion 1141, and one end of the second closed door 116 close to the partition plate 114 is inserted into the second position-limiting portion 1142.

It can be understood 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 plate 114, may be inserted into the first limiting portion 1141 or the second limiting portion 1142 to achieve the closing of the first channel 1111 or the second channel 1112, and by providing the first limiting portion 1141 and the second limiting portion 1142, after the closing of the first channel 1111 and the second channel 1112 is improved, the reliability of the connection between the first closing door 115 and the partition plate 114 and the connection between the second closing door 116 and the partition plate 114 are improved, and the effect of closing the first channel 1111 and the second channel 1112 is ensured; specifically, two first limiting portions 1141 are respectively arranged at two ends of one side of the partition plate 114, and the two first limiting portions 1141 are arranged corresponding to the two first sealing doors 115, so that the two first sealing doors 115 are respectively inserted into the two first limiting portions 1141; two second limiting portions 1142 are respectively disposed at two ends of the other side of the partition plate 114, and the two second limiting portions 1142 are disposed corresponding to the two second sealing doors 116, so that the two second sealing doors 116 are respectively inserted into the two second limiting portions 1142.

Referring to fig. 4 and 8, in some embodiments, a plurality of pin holes 1151 are formed in both ends of the first closing door 115 and the second closing door 116 away from the partition 114, a plurality of bolts 1113 are formed on the filter bin 111, the plurality of bolts 1113 are arranged corresponding to the plurality of pin holes 1151, and when the first closing door 115 closes the first channel 1111, the plurality of bolts 1113 are inserted into the plurality of pin holes 1151 in a one-to-one correspondence; by arranging the bolts 1113 and the pin holes 1151, the connection reliability of the first closing door 115 and the second closing door 116 with the filter bin 111 when the first closing door 115 closes the first channel 1111 and the second closing door 116 closes the second channel 1112 can be effectively improved.

Referring to fig. 1 and 4 in combination, in some embodiments, the filter body 11 further includes two first process doors 117 and two second process doors 118; the two first treatment doors 117 are positioned on one side of the filter bin 111, the opposite ends of the two first treatment doors 117 are rotatably connected with the filter bin 111, and the opposite ends of the two first treatment doors 117 are abutted; the two second treatment doors 118 are positioned on the other side of the filter bin 111, the opposite ends of the two second treatment doors 118 are rotatably connected with the filter bin 111, and the opposite ends of the two second treatment doors 118 are abutted; the two first treatment doors 117 and the two second treatment doors 118 are respectively used for closing openings at two sides of the filter bin 111.

It will be appreciated that the first 117 and second 118 treatment doors may be reversed to facilitate removal of the graded filter structure 12 from the filter silo 111 when the user is cleaning or replacing the graded filter structure 12; the opposite ends of the two first processing doors 117 abut and the opposite ends of the two second processing doors 118 abut, in particular in an edge-on-edge manner.

Referring to fig. 5 and 9, in a second embodiment of the present application, a control method based on a ceramic kiln flue gas filtering system 10 is further provided, 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 application to ensure specific values of the filtering efficiency of the primary filtering unit 121 and the secondary filtering unit 122 in the graded filtering net structure 12, and ensure that the flue gas generated by the ceramic kiln is stably supplied to subsequent processes for recycling after passing through the ceramic kiln flue gas filtering system 10, for example: when the primary filtering unit 121 is seriously blocked and the smoke is influenced to pass through, the pressure difference between the air pressure in the air pipe 112 and the air pressure between the primary filtering unit 121 and the secondary filtering unit 122 is measured to be used as a first standard pressure difference, and when the secondary filtering unit 122 is seriously blocked and the smoke is influenced to pass through, the pressure difference between the air pressure in the air pipe 113 and the air pressure between the primary filtering unit 121 and the secondary filtering unit 122 is measured to be used as a second standard pressure difference;

s200, obtaining 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 filtering unit 121 and the secondary filtering unit 122, calculating a pressure difference between the air pressure in the air inlet pipe 112 and the air pressure between the primary filtering unit 121 and the secondary filtering unit 122 to obtain a first pressure difference, and calculating a pressure difference between the air pressure in the air pipe 113 and the air pressure between the primary filtering unit 121 and the secondary filtering unit 122 to obtain a second pressure difference;

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

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

Specifically, the air pressure in the air inlet pipe 112 can be measured by the first detecting part 15, the air pressure in the air outlet pipe 113 can be measured by the second detecting part 16, and the air pressure between the primary filtering unit 121 and the secondary filtering unit 122 can be measured by the third detecting part 17; therefore, 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 filtering unit 121 and the secondary filtering unit 122 can be the pressure values of the first detecting part 15, the second detecting part 16 and the third detecting part 17; the first pressure difference can represent the pressure difference at two sides of the primary filtering unit 121 and can reflect the blockage degree of meshes on the primary filtering unit 121, when the meshes are blocked seriously, the smoke is blocked, and the pressure difference at two sides of the primary filtering unit 121 is overlarge, so that when the first pressure difference is larger than a first standard pressure difference, the meshes of the primary filtering unit 121 can be determined to be blocked seriously, and then the first vibrator 131 is started to vibrate and clean the primary filtering unit 121 for ash, and is closed after a certain time, so that part of particles attached to the primary filtering unit 121 are separated, and the blocked meshes are dredged; similarly, the second pressure difference represents the pressure difference between the two sides of the secondary filtering unit 122, and may reflect the degree of clogging of the mesh openings on the secondary filtering unit 122, and when the second pressure difference is greater than the second standard pressure difference, it may be determined that the mesh openings of the secondary filtering unit 122 are clogged seriously, and then the second vibrator 132 is started to vibrate the secondary filtering unit 122 to clean ash, and is closed after a certain time, so that part of the particulate matters attached to the secondary filtering unit 122 are separated, and the clogged mesh openings are dredged; the holding time after the first vibrator 131 and the second vibrator 132 are activated may be set according to actual production needs, so as to achieve effective cleaning of the first-stage filtering unit 121 and the second-stage filtering unit 122.

It can be understood that, the determination of the blocking condition of the primary filtering unit 121 or the secondary filtering unit 122 is realized by judging the pressure difference between the two sides of the primary filtering unit 121 and the secondary filtering unit 122, so as to control the vibration action of the first vibrator 131 and the second vibrator 132 on the primary filtering unit 121 and the secondary filtering unit 122 respectively, the automatic ash cleaning function of the primary filtering unit 121 and the secondary filtering unit 122 is realized, the smoke filtering efficiency of the ceramic kiln smoke filtering system 10 in the continuous use process is effectively ensured, the influence on the normal production is avoided, and the cleaning or replacing period of the primary filtering unit 121 and the secondary filtering unit 122 is prolonged.

In some embodiments, the S300 is followed by:

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

specifically, each time the first vibrator 131 is started, a part of the particulate matters attached to the primary filtering unit 121 are separated and fall into the first hopper 141, and as the number of times of starting increases, the particulate matters in the first hopper 141 are higher and higher, and after the first vibrator 131 is started for a certain number of times, the primary switch 143 in the first hopper 141 is correspondingly turned on, so that the accumulated particulate matters continuously fall down and fall onto the secondary switch 144, thereby preventing the particulate matters from being excessively high and covering the filter screen of the primary filtering unit 121 on the primary switch 143; the first predetermined value refers to the number of times of starting the first vibrator 131 set to avoid the accumulation of particles on the first-stage switch element 143 from being too high and cover the filter screen of the first-stage filtering unit 121, and may be determined by repeated verification according to actual application conditions; in addition, after the first start-up number reaches the first start-up predetermined value, the first start-up number of the first vibrator 131 is recorded again;

s31, recording a first turn-on number of the primary switching element 143, and after the first turn-on number reaches a first turn-on predetermined value, turning on the secondary switching element 144 and keeping it for a certain time, and then turning off.

Specifically, an accommodating space is formed between the primary switch 143 and the secondary switch 144, and when the primary switch 143 is turned on once, the particulate matters accumulated on the primary switch 143 fall into the accommodating space, and as the turn-on times increase, the particulate matters accumulated in the accommodating space become higher and higher, and after the primary switch 143 is turned on for a certain number of times, the secondary switch 144 in the first hopper 141 is correspondingly turned on to collect and bag the particulate matters accumulated in the accommodating space; the second predetermined value refers to the number of times of turning on the primary switch element 143, which is set to avoid the accumulation of particles on the secondary switch element 144, and can be determined by repeated verification according to the actual application condition; the holding time of the first-stage switch element 143 and the second-stage switch element 144 after being turned on can be set according to actual production requirements, so that the accumulated particles are discharged as far as possible; in addition, after the first opening times reach the first opening preset value, the first opening times of the primary switch element 143 are recorded again;

it can be understood that through the above steps, automatic control of the process of filtering and settling the particles of the flue gas discharged from the first hopper 141 is realized, and the effect of filtering the flue gas by the ceramic kiln flue gas filtering system 10 in the continuous use process is effectively guaranteed.

In some embodiments, the step S30 is followed by:

and judging whether the starting times of the first vibrator 131 in the preset time is greater than a first limit value or not, and if so, sending a cleaning alarm prompt.

It can be understood that after the primary filtering unit 121 is used for a long time, the primary filtering unit 121 cannot avoid generating scale deposition and is not easy to fall off under the vibration effect, so that the mesh opening of the filter screen of the primary filtering unit 121 is reduced, the primary filtering unit 121 is easy to generate a blocking phenomenon in the flue gas filtering process, the blocking phenomenon is reflected on the pressure difference (namely, the first pressure difference) at two sides of the primary filtering unit 121, namely, the time for the first pressure difference to reach the first standard pressure difference is shortened, and the starting times of the first vibrator 131 in a certain time are increased; by presetting a first limit value, whether the starting frequency of the first vibrator 131 exceeds the limit value within a preset time is judged, so that the serious fouling of the primary filtering unit 121 after long-term use is judged, and a cleaning alarm prompt is sent to an operator to remind the operator to clean and replace the filtering unit, so that the filtering efficiency of smoke is prevented from being influenced; 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 after the primary filtering unit 121 has suffered from the severe fouling phenomenon, where the certain period of time is used as the predetermined time, and the number of times of starting is used as the first limit value.

In some embodiments, the S400 is followed by:

s40, recording a second starting frequency of the second vibrator 132, and after the second starting frequency reaches a second starting preset value, turning on the primary switch 143 and keeping for a certain time and then turning off the primary switch;

and S41, recording the second opening times of the primary switch element 143, and after the second opening times reaches a second opening preset value, opening the secondary switch element 144 and keeping the second opening times for a certain time, and then closing the secondary switch element.

It is understood that the second starting times refers to the opening times of the primary switch in the second hopper 142; the steps realize automatic control of the discharge process of the particles settled after filtering the flue gas in the second hopper 142, and the control principle of the steps is the same as that of the first hopper 141, so that the effect of filtering the flue gas by the ceramic kiln flue gas filtering system 10 in the continuous use process can be effectively guaranteed.

In some embodiments, the step S40 is followed by:

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

It can be understood that through the above steps, the secondary filtering unit 122 is judged to have serious fouling after long-term use, and then a cleaning alarm prompt is sent to an operator to remind the operator and the filtering unit to be cleaned and replaced, so as to avoid affecting the filtering efficiency of the flue gas; 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 time period may be counted according to the occurrence of the serious fouling phenomenon in the secondary filtering unit 122, and the time period is used as the predetermined time, and the number of times of starting is used as the second limit value.

In some embodiments, the step S400 is followed by:

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

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

It can be understood that after a serious blockage phenomenon occurs in a mesh opening of the primary filtering unit 121 or the secondary filtering unit 122, a pressure difference between two sides of the primary filtering unit 121 is too large, that is, a first pressure difference is too large, or a pressure difference between two sides of the secondary filtering unit 122 is too large, that is, a second pressure difference is too large, by setting a third standard pressure difference and a fourth standard pressure difference, comparing the first pressure difference with the third standard pressure difference, and comparing the second pressure difference with the fourth standard pressure difference, whether the primary filtering unit 121 or the secondary filtering unit 122 is seriously blocked or not is determined, and then a cleaning alarm prompt is sent to remind an operator of cleaning (or replacing) the primary filtering unit 121 or the secondary filtering unit 122; the third standard pressure difference and the fourth standard pressure difference can be determined by repeated verification in practical application, and the first pressure difference and the second pressure difference can be detected according to the magnitude of the first pressure difference and the second pressure difference after the primary filtering unit 121 and the secondary filtering unit 122 are seriously blocked, then the first pressure difference is used as the third standard pressure difference, and the second pressure difference is used as the fourth standard pressure difference; through the steps, the judgment of serious blockage of the primary filtering unit 121 or the secondary filtering unit 122 is realized, and then a cleaning alarm prompt is sent to an operator to remind the operator and the filtering unit to be cleaned and replaced, so that the filtering effect of the smoke is prevented from being influenced.

To sum up, the application provides a ceramic kiln flue gas filtration system, includes: the filter body comprises a filter bin, an air inlet pipe and an air outlet pipe; the graded 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 smoke; the vibrating mechanism is arranged on the filtering bin, one end of the vibrating mechanism extends into the filtering bin and is connected with the grading filter screen structure and used for driving the grading filter screen structure to vibrate; and the collecting device is arranged at the bottom of the filter bin. The flue gas enters the filtering bin from the gas inlet pipe and is discharged from the gas outlet pipe, and a graded filtering net structure is arranged in the filtering bin to filter the flue gas; after filtering, particulate matters such as part of smoke and dust in the flue gas, ceramic fiber and the like are attached to the classified filter screen structure, the vibrating mechanism is connected with the classified filter screen structure, and the classified filter screen structure is driven to vibrate, so that part of the attached particulate matters fall off, the dust can be prevented from being rapidly accumulated on the classified filter screen structure, the blockage is caused, the ceramic kiln flue gas filtering system can automatically clean the dust accumulated on the classified filter screen structure in the continuous filtering process of the flue gas, and the normal production is not influenced in the cleaning process.

It should be understood that the application of the present application is not limited to the above examples, and that modifications or changes may be made by those skilled in the art based on the above description, and all such modifications and changes are intended to fall within the scope of the appended claims.

Claims (10)

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

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

the graded 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 smoke;

the vibration mechanism is arranged on the filter bin, one end of the vibration mechanism extends into the filter bin and is connected with the graded filter screen structure and used for driving the graded 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 graded filter screen structure comprises:

the primary filtering unit and the secondary filtering unit are arranged at intervals along the air inlet direction of the filtering bin, and the primary filtering unit is positioned on one side of the secondary 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 piece is arranged on the air inlet pipe and 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 filtering bin and used for detecting the air pressure between the primary filtering unit and the secondary filtering unit;

the controller drives the first vibrator to start and stop according to the pressure difference between the first detection piece and the third detection piece and drives the second vibrator to start and stop according to the pressure difference between the second detection piece and the third detection piece.

4. The ceramic kiln gas filtration system as claimed in claim 3, characterized in that the collecting means comprises:

the first hopper and the second hopper are located on the bottom surface of the filtering bin and communicated with the filtering bin, and the first hopper and the second hopper are respectively arranged corresponding to the primary filtering unit and the secondary filtering unit.

5. The ceramic kiln flue gas filtration system of claim 4,

the structure of first hopper with the second hopper is the same, 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 for open or close the passageway of first hopper, one-level switch spare is located on the top surface of second grade switch spare.

6. The ceramic kiln flue gas filtration system of claim 2, wherein the primary filtration unit and the secondary filtration unit are each formed by overlapping a plurality of V-shaped filter screens.

7. The ceramic kiln flue gas filtering system as claimed in claim 1, wherein a partition is disposed in the filtering bin, the partition divides the filtering bin into a first channel and a second channel, and two ends of the first channel and the second channel are respectively communicated with the gas inlet pipe and the gas outlet pipe;

the ceramic kiln smoke filtering system comprises two graded filter screen structures, and the two graded filter screen structures are respectively positioned in the first channel and the second channel.

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

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

and the two second closed doors are respectively arranged at the connecting position of the air inlet pipe and the filter bin in a sliding manner, and at the connecting position of the air outlet pipe and the filter bin in a sliding manner, and are used for closing two ends of the second channel.

9. The ceramic kiln flue gas filtering system according to claim 8, wherein the partition plate is provided with a first limiting portion and a second limiting portion, the first limiting portion and the second limiting portion are U-shaped, one end of the first closed door close to the partition plate is inserted into the first limiting portion, and one end of the second closed door close to the partition plate is inserted into the second limiting portion.

10. 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 filtering bin, the opposite ends of the two first treatment doors are rotatably connected with the filtering bin, and the opposite ends of the two first treatment doors are abutted;

the two second treatment doors are positioned on the other side of the filtering bin, the opposite ends of the two second treatment doors are rotatably connected with the filtering bin, and the opposite ends of the two second treatment doors are abutted;

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

Images