CN112354301B - Ceramic fiber pipe filtering device for calcium carbide furnace gas treatment system - Google Patents
Ceramic fiber pipe filtering device for calcium carbide furnace gas treatment system Download PDFInfo
- Publication number
- CN112354301B CN112354301B CN202011406898.4A CN202011406898A CN112354301B CN 112354301 B CN112354301 B CN 112354301B CN 202011406898 A CN202011406898 A CN 202011406898A CN 112354301 B CN112354301 B CN 112354301B
- Authority
- CN
- China
- Prior art keywords
- ceramic fiber
- hole
- pipe
- wall
- fiber tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
- B01D46/0008—Two or more filter elements not fluidly connected positioned in the same housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/58—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/915—Catalyst supported on particulate filters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a ceramic fiber tube filtering device for a calcium carbide furnace gas treatment system, which comprises a dust removal chamber and a ceramic fiber tube, wherein the dust removal chamber is provided with an exhaust pipe, an ash discharge valve, a fixed limiting plate, a recoil pipe, a sealing door, an air inlet pipe, a push rod supporting leg and a charging hopper; the push rod supporting legs are composed of a cylinder and a piston rod, a brush plate is fixedly connected to the top of the piston rod, a soft brush is laid on the inner wall of a through hole II of the brush plate, a movable limiting plate is arranged above the brush plate, and a pin hole corresponding to the positioning pin is formed in the movable limiting plate. The invention firstly realizes a novel ceramic fiber pipe mounting method with a side position throwing type, and the mounting and dismounting process is simple and convenient; according to the invention, the outer wall of the ceramic fiber tube is brushed by the soft brush of the brush plate, and desiccant powder, catalyst suspension or high-temperature dry air is added through the hopper, so that the drying management of the ceramic fiber tube and the secondary coating process of the catalyst are realized, and the automatic maintenance process is realized.
Description
Technical Field
The invention relates to the technical field of calcium carbide furnace gas treatment, in particular to a ceramic fiber tube filtering device for a calcium carbide furnace gas treatment system.
Background
In chemical industry, petroleum, metallurgy, electric power and other industries, high-temperature dust-containing gas is often generated, and the flue gas can be divided into high-temperature flue gas (higher than 600 ℃), medium-temperature flue gas (230-600 ℃) and low-temperature flue gas (lower than 230 ℃) according to the temperature.
The tail gas generated in the calcium carbide furnace often reaches more than 300 ℃, belongs to typical high-temperature dust-containing gas and exceeds the working temperature range of a common bag type dust collector, so that the tail gas of the calcium carbide furnace is often subjected to preferential cooling treatment by using the bag type dust collector, and the tail gas is troublesome.
Therefore, the existing ceramic fiber pipe with high temperature resistance and harder quality is gradually adopted to replace the bag type dust collector, and the ceramic fiber pipe has the following advantages of treating the tail gas of the calcium carbide furnace: (1) high porosity, small air resistance and high filtering precision: the dust filtering efficiency can reach more than 99.99%, the NOx removal efficiency can reach more than 90%, the filtering precision is high, and the national atmospheric emission standard is met; (2) inorganic fiber material is not easy to burn. The filter is insensitive to sparks, eliminates the high-temperature burning and fire hazard of the traditional filter medium, can resist the temperature up to 1260 ℃, can be used for a long time of 900 ℃, and has excellent temperature fluctuation resistance; (3) the product performance is stable, the acid and alkali corrosion resistance is high, and the service life is long: the composite structure of the ceramic fiber filter tube avoids the flexibility of the cloth bag, the dust removal effect is better, the hidden danger of bag pasting is avoided, the service life of the filter tube can reach 5-8 years, the service life of the filter tube is greatly superior to that of the filter bag, and the maintenance cost and the operation cost are reduced; (4) can realize integration of dry desulfurization, dust removal and denitration: the ceramic fiber filter tube has high porosity, can be internally loaded with a catalyst, and can realize integration of dry desulfurization, dust removal and denitration. Compared with wet desulphurization, the pure dry flue gas purification process has no smoke tail, no need of whitening, no desulphurization waste water and no secondary pollution.
However, the existing ceramic fiber pipe has strong adsorbability, and is easy to cause blockage due to over-thick ash layer on the outer wall; in addition, the service life of the ceramic fiber pipe is also easily reduced greatly due to excessive humidity in the tail gas, and particularly, the ceramic fiber pipe is extremely easy to be deactivated by moisture after being loaded with a catalyst, and the catalyst is often required to be supplemented properly; the existing ceramic fiber tube filtering system can not solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a ceramic fiber pipe filtering device for a calcium carbide furnace gas treatment system.
In order to achieve the purpose, the invention adopts the following technical scheme:
a ceramic fiber tube filtering device for a calcium carbide furnace gas treatment system comprises a dust removal chamber and a ceramic fiber tube arranged in the dust removal chamber, wherein the top wall of the dust removal chamber is arched and is fixedly provided with an exhaust pipe, the bottom of the dust removal chamber is funnel-shaped, an outlet at the center of the bottom of the dust removal chamber is provided with an ash discharge valve, the middle of the dust removal chamber is of a square cavity structure, an upper fixing frame of the inner cavity side wall of the dust removal chamber is provided with a fixed limiting plate, the fixed limiting plate is provided with a through hole I communicated with an opening at the top end of the ceramic fiber tube, the ceramic fiber tube is arranged right below the through hole I, the top of the outer wall of the ceramic fiber tube is provided with a flange part, the aperture of the through hole I is larger than the inner diameter of the opening at the top end of the ceramic fiber tube, and the aperture of the through hole I is smaller than the outer diameter of the flange part, so that the ceramic fiber tube abuts against the fixed limiting plate and does not influence the gas flow rate;
a venturi is fixedly arranged above the through hole I, a back-flushing nozzle is arranged in an opening at the top of the venturi, a gap is reserved between the outer wall at the bottom of the back-flushing nozzle and the inner wall of the opening at the top of the venturi, the top end of the back-flushing nozzle is communicated with a back-flushing pipe, the back-flushing pipe is positioned below the exhaust pipe, one end of the back-flushing pipe extends out of the dust removing chamber and is communicated with a back-flushing air pump, and the back-flushing air pump is used for back-flushing the ceramic fiber pipe to shake off dust on the outer wall of the ceramic fiber pipe;
one side wall of the dust chamber square cavity structure is provided with an installation opening, one side wall of the installation opening is connected with a sealing door through a hinge, and the bottom of the other side wall of the dust chamber square cavity structure is provided with an air inlet pipe;
the edge of the bottom of the dust removal chamber is provided with a push rod supporting leg, the push rod supporting leg consists of a barrel and a piston rod sleeved at the top end of the barrel, the top of the barrel extends into the dust removal chamber and is lower than the height of the air inlet pipe, the top end of the piston rod is fixedly connected with a brush plate, the brush plate is provided with a through hole II corresponding to the main part of the ceramic fiber pipe, the inner diameter of the through hole II is larger than the outer diameter of the main part of the ceramic fiber pipe, the aperture of the through hole II is smaller than the outer diameter of the flange part, a soft brush is laid on the inner side wall of the through hole II, the outer wall of the main part of the ceramic fiber pipe of the soft brush is contacted with the outer wall of the main part of the ceramic fiber pipe, rubber layers are padded on the peripheral walls of the brush plate, and the side walls of the brush plate are hermetically sleeved on the inner wall of the dust removal chamber;
a movable limiting plate is arranged above the brush plate, the movable limiting plate is provided with a through hole III corresponding to the main body part of the ceramic fiber pipe, the inner diameter of the through hole III is larger than the outer diameter of the main body part of the ceramic fiber pipe, the aperture of the through hole III is smaller than the outer diameter of the flange part, any one of the through holes I, the through holes II and the through holes III corresponds to one another one by one, the top of the side wall of the square cavity structure of the dust removal chamber is provided with a positioning pin, the peripheral wall of the movable limiting plate is provided with a pin hole corresponding to the positioning pin and used for limiting the movable limiting plate, and the flange part of the ceramic fiber pipe can be clamped through the fixed limiting plate and the movable limiting plate, so that the novel ceramic fiber pipe installation method is provided, the ceramic fiber pipe can be installed in the dust removal chamber from the side, and the installation process is simple and convenient;
the side wall of the dust removing chamber is provided with a charging hopper at the lower position near the positioning pin, and drying agent powder, catalyst suspension or high-temperature dry air is arranged in the charging hopper and is used for secondary smearing and brushing of the catalyst.
Preferably, the ceramic fiber tube is a porous ceramic fiber tube loaded with catalyst, and the loading process is to impregnate catalyst suspension or emulsion and then to carry out high-temperature drying at 400-500 ℃.
Preferably, the ash discharging valve is a turnover ash discharging valve, the ash discharging valve is composed of a rotating shaft penetrating through the inner side wall of the outlet of the hopper at the bottom of the dust removing chamber and an arc-shaped plate fixed on the rotating shaft in an annular mode, and one end of the rotating shaft is fixedly connected with a low-speed motor for switching the size of the ash discharging opening and controlling the ash discharging speed.
Preferably, any one of the backflushing spray heads is provided with an electromagnetic valve for controlling the switch of backflushing dedusting.
Preferably, the sealing door internal surface is equipped with the boss, and the boss perisporium has cup jointed the rubber layer, and when the sealing door block was in the installing port, the boss surface was flushed and is seamless between sealing door and the installing port with the indoor lateral wall of dust removal, reached sealed effect.
Preferably, the bottom of the push rod supporting leg is fixedly connected with a universal wheel, and the universal wheel is provided with a brake pad, so that the dust chamber can move or stand still conveniently.
The invention also provides a corresponding use method of the ceramic fiber pipe filtering device for the calcium carbide furnace gas treatment system, which comprises the following steps:
s1, firstly, shortening the supporting legs of the push rod to the shortest position, placing the movable limiting plate on the brush plate, and inserting the ceramic fiber tube into the through hole III and the through hole II from the sealing door;
s2, closing the sealing door, and when the movable limiting plate is lifted to the highest position, sealing the top end face of the ceramic fiber tube against the fixed limiting plate, and fixedly installing the movable limiting plate through the positioning pin;
s3, during dust removal, the brush plate is lifted and lowered in a reciprocating mode, and the outer wall of the ceramic fiber pipe is scrubbed;
s4, blowing high-temperature dry air with the temperature of more than 200 ℃ from a feeding hopper during drying, and properly adding desiccant powder to keep the outer wall of the ceramic fiber tube dry;
s5, when the catalyst is coated for the second time, adding the catalyst suspension from the feeding hopper, after 15S, basically leveling the catalyst suspension on the upper surface of the brush plate to enable the catalyst suspension to slowly permeate the through hole II, lifting the brush plate rapidly and repeatedly to coat the outer wall of the ceramic fiber tube, and after the catalyst suspension is coated uniformly, blowing high-temperature dry air with the temperature of more than 400 ℃ from the feeding hopper to enable the outer wall of the ceramic fiber tube to be completely dried, thereby completing the second coating.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the fixed limiting plate, the brush plate and the movable limiting plate are arranged in the dust removing chamber, the brush plate is supported by the push rod, the movable limiting plate is driven to lift up, and the movable limiting plate is fixedly installed by the positioning pin, so that a novel ceramic fiber pipe installation method with a side position throwing mode is realized, and the installation and disassembly processes are simple and convenient;
2. according to the invention, the soft brush is arranged in the through hole II of the brush plate, so that the outer wall of the ceramic fiber tube is mechanically scrubbed, and desiccant powder, catalyst suspension or high-temperature dry air can be added from the hopper, so that the drying management of the ceramic fiber tube and the secondary coating process of the catalyst are realized, the ceramic fiber tube is maintained automatically for a long time, the catalytic and filtering capabilities of the ceramic fiber tube are maintained at a high level for a long time, and the secondary maintenance cost of the ceramic fiber tube is greatly saved.
Drawings
Fig. 1 is a schematic structural diagram (ceramic fiber pipe feeding) of a ceramic fiber pipe filtering device for a calcium carbide furnace gas treatment system according to the present invention;
FIG. 2 is a schematic structural diagram of a second ceramic fiber tube filtering device for a calcium carbide furnace gas treatment system according to the present invention (after the ceramic fiber tube is fixed);
fig. 3 is a schematic structural diagram of a ceramic fiber tube filtering device for a calcium carbide furnace gas treatment system according to the present invention (ceramic fiber tube brushing process);
in the figure: the device comprises a dust removing chamber 1, a ceramic fiber pipe 2, an exhaust pipe 3, an ash discharge valve 4, a fixed limiting plate 5, a venturi 6, a recoil spray head 7, a recoil pipe 8, a recoil air pump 9, a sealing door 10, an air inlet pipe 11, a push rod supporting leg 12, a brush plate 13, a soft brush 14, a movable limiting plate 15, a positioning pin 16, a charging hopper 17 and a universal wheel 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, a ceramic fiber tube filtering device for a calcium carbide furnace gas treatment system comprises a dust removal chamber 1 and a ceramic fiber tube 2 arranged in the dust removal chamber 1, wherein the top wall of the dust removal chamber 1 is in an arc shape and is fixedly provided with an exhaust pipe 3, the bottom of the dust removal chamber 1 is in a funnel shape, an outlet at the center of the bottom of the dust removal chamber 1 is provided with an ash discharge valve 4, the middle part of the dust removal chamber 1 is in a square cavity structure, an upper fixing frame at the side wall of an inner cavity of the dust removal chamber 1 is provided with a fixing limiting plate 5, the fixing limiting plate 5 is provided with a through hole I communicated with an opening at the top end of the ceramic fiber tube 2, the ceramic fiber tube 2 is arranged right below the through hole I, the top of the outer wall of the ceramic fiber tube 2 is provided with a flange part, the aperture of the through hole I is larger than the inner diameter of the opening at the top end of the ceramic fiber tube 2 and the aperture of the through hole I is smaller than the outer diameter of the flange part, so that the ceramic fiber tube 2 abuts against the fixing limiting plate 5 and the gas flow rate is not influenced; a venturi 6 is fixedly arranged above the through hole I, a back-flushing nozzle 7 is arranged in an opening at the top of the venturi 6, a gap is reserved between the outer wall of the bottom of the back-flushing nozzle 7 and the inner wall of the opening at the top of the venturi 6, the top end of the back-flushing nozzle 7 is communicated with a back-flushing pipe 8, the back-flushing pipe 8 is positioned below the exhaust pipe 3, one end of the back-flushing pipe 8 extends out of the dust removing chamber 1 and is communicated with a back-flushing air pump 9 for back-flushing the ceramic fiber pipe 2, so that dust on the outer wall of the ceramic fiber pipe 2 can shake off; one side wall of the square cavity structure of the dust removing chamber 1 is provided with an installation opening, one side wall of the installation opening is connected with a sealing door 10 through a hinge, and the bottom of the other side wall of the square cavity structure of the dust removing chamber 1 is provided with an air inlet pipe 11; a push rod supporting leg 12 is arranged at the bottom edge of the dust removing chamber 1, the push rod supporting leg 12 is composed of a cylinder body and a piston rod sleeved at the top end of the cylinder body, the top of the cylinder body extends into the dust removing chamber 1 and is lower than the height of the air inlet pipe 11, a brush plate 13 is fixedly connected to the top end of the piston rod, a through hole II corresponding to the main body part of the ceramic fiber pipe 2 is formed in the brush plate 13, the inner diameter of the through hole II is larger than the outer diameter of the main body part of the ceramic fiber pipe 2, the aperture of the through hole II is smaller than that of a flange part, a soft brush 14 is laid on the inner side wall of the through hole II, the outer wall of the main body part of the ceramic fiber pipe 2 is contacted with the soft brush 14, rubber layers are arranged on the walls around the brush plate 13 in a padding mode, and the side walls of the brush plate 13 are sleeved on the inner wall of the dust removing chamber 1 in a sealing mode; a movable limiting plate 15 is arranged above the brush plate 13, the movable limiting plate 15 is provided with through holes III corresponding to the main body part of the ceramic fiber pipe 2, the inner diameter of each through hole III is larger than the outer diameter of the main body part of the ceramic fiber pipe 2, the aperture of each through hole III is smaller than the outer diameter of the flange part, any one of the through holes I, the through holes II and the through holes III corresponds to one another, positioning pins 16 are arranged at the top of the side wall of the square cavity structure of the dust removing chamber 1, pin holes corresponding to the positioning pins 16 are formed in the peripheral wall of the movable limiting plate 15 and used for limiting the movable limiting plate 15, and the flange part of the ceramic fiber pipe 2 can be fixedly clamped through the fixed limiting plate 5 and the movable limiting plate 15, so that a novel mounting method for the ceramic fiber pipe 2 is provided, the ceramic fiber pipe 2 can be mounted in the dust removing chamber 1 from the side, and the mounting process is simple and convenient; the side wall of the dust removing chamber 1 is provided with a feeding hopper 17 at a position below the positioning pin 16, and drying agent powder, catalyst suspension or high-temperature drying air is arranged in the feeding hopper 17 and is used for secondary smearing and brushing of the catalyst.
Referring to fig. 1-3, the ceramic fiber tube 2 is a porous ceramic fiber tube loaded with catalyst, and the loading process is to impregnate catalyst suspension or emulsion, and then to perform high temperature drying at 400-500 ℃.
Referring to fig. 1-3, the ash discharge valve 4 is specifically a turnover ash discharge valve, the ash discharge valve 4 is composed of a rotating shaft penetrating through the inner side wall of the hopper outlet at the bottom of the dust chamber 1 and an arc-shaped plate fixed on the rotating shaft in an annular manner, and one end of the rotating shaft is fixedly connected with a low-speed motor for opening and closing the size of an ash discharge opening and controlling the ash discharge speed.
Referring to fig. 1 to 3, any one of the back flush nozzles 7 is provided with an electromagnetic valve for controlling the on-off of the back flush dedusting.
Referring to fig. 1-3, the inner surface of the sealing door 10 is provided with a boss, the peripheral wall of the boss is wrapped with a rubber layer, when the sealing door 10 is clamped in the mounting opening, the surface of the boss is flush with the inner side wall of the dust removal chamber 1, no gap is left between the sealing door 10 and the mounting opening, and the sealing effect is achieved.
Referring to fig. 1-3, the bottom end of the push rod supporting leg 12 is fixedly connected with a universal wheel 18, and the universal wheel 18 is provided with a brake pad, so that the dust chamber 1 can move or stand still conveniently.
The invention also provides a corresponding use method of the ceramic fiber pipe filtering device for the calcium carbide furnace gas treatment system, which comprises the following steps:
s1, firstly, shortening the push rod supporting leg 12 to the shortest position, then placing the movable limiting plate 15 on the brush plate 13, and inserting the ceramic fiber tube 2 into the through hole III and the through hole II from the sealing door 10;
s2, closing the sealing door 10, and when the movable limiting plate 15 is lifted to the highest position, sealing the top end face of the ceramic fiber tube 2 against the fixed limiting plate 5, and fixedly installing the movable limiting plate 15 through the positioning pin 16;
s3, during dust removal, the brush plate 13 is lifted and lowered in a reciprocating mode, and the outer wall of the ceramic fiber pipe 2 is scrubbed;
s4, blowing high-temperature dry air with the temperature of more than 200 ℃ from the hopper 17 during drying, and properly adding desiccant powder to keep the outer wall of the ceramic fiber tube 2 dry;
s5, when the catalyst is coated for the second time, adding the catalyst suspension from the feed hopper 17, after 15S, basically leveling the catalyst suspension on the upper surface of the brush plate 13 to enable the catalyst suspension to slowly permeate the through hole II, lifting the brush plate 13 rapidly and repeatedly to coat the outer wall of the ceramic fiber tube 2, and after the catalyst suspension is uniformly coated, blowing high-temperature dry air with the temperature of more than 300 and 400 ℃ from the feed hopper 17 to completely dry the outer wall of the ceramic fiber tube 2, thereby completing the second coating.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. The utility model provides a ceramic fiber pipe filter equipment for carbide burner gas processing system, includes clean room (1) and sets up ceramic fiber pipe (2) in clean room (1), a serial communication port, clean room (1) roof is for ARC and fixed blast pipe (3) that is provided with, clean room (1) bottom is for leaking hopper-shaped, the exit at clean room (1) bottom center is equipped with unloading valve (4), clean room (1) middle part is the square cavity structure, the upper portion mount of clean room (1) inner chamber lateral wall is equipped with fixed limiting plate (5), fixed limiting plate (5) are equipped with the through-hole I who communicates with ceramic fiber pipe (2) top opening, ceramic fiber pipe (2) set up under through-hole I, ceramic fiber pipe (2) outer wall top is provided with flange portion, the aperture of through-hole I is greater than ceramic fiber pipe (2) top opening internal diameter just the aperture of through-hole I is less than the outer of flange portion Diameter;
a venturi (6) is fixedly arranged above the through hole I, a back-flushing nozzle (7) is arranged in an opening at the top of the venturi (6), a gap is reserved between the outer wall of the bottom of the back-flushing nozzle (7) and the inner wall of the opening at the top of the venturi (6), the top end of the back-flushing nozzle (7) is communicated with a back-flushing pipe (8), the back-flushing pipe (8) is positioned below the exhaust pipe (3), and one end of the back-flushing pipe (8) extends out of the dust removal chamber (1) and is communicated with a back-flushing air pump (9);
a mounting opening is formed in one side wall of the square cavity structure of the dust removing chamber (1), one side wall of the mounting opening is connected with a sealing door (10) through a hinge, and an air inlet pipe (11) is formed in the bottom of the other side wall of the square cavity structure of the dust removing chamber (1);
the bottom edge of the dust chamber (1) is provided with a push rod supporting leg (12), the push rod supporting leg (12) consists of a cylinder body and a piston rod sleeved at the top end of the cylinder body, the top of the cylinder body extends into the dust chamber (1) and is lower than the height of the air inlet pipe (11), the top end of the piston rod is fixedly connected with a brush plate (13), the brush plate (13) is provided with a through hole II corresponding to the main body part of the ceramic fiber tube (2), the inner diameter of the through hole II is larger than the outer diameter of the main body part of the ceramic fiber pipe (2), the aperture of the through hole II is smaller than the outer diameter of the flange part, a soft brush (14) is laid on the inner side wall of the through hole II, the outer wall of the main body part of the ceramic fiber tube (2) of the soft brush (14) is contacted, a rubber layer is padded on the peripheral wall of the brush plate (13), the side wall of the brush plate (13) is hermetically connected on the inner wall of the dust removing chamber (1);
a movable limiting plate (15) is arranged above the brush plate (13), the movable limiting plate (15) is provided with a through hole III corresponding to the main body part of the ceramic fiber pipe (2), the inner diameter of the through hole III is larger than the outer diameter of the main body part of the ceramic fiber pipe (2), the aperture of the through hole III is smaller than the outer diameter of the flange part, any group of the through hole I, the through hole II and the through hole III are in one-to-one correspondence, a positioning pin (16) is arranged at the top of the side wall of the square cavity structure of the dust removing chamber (1), and pin holes corresponding to the positioning pin (16) are formed in the peripheral wall of the movable limiting plate (15);
a loading hopper (17) is arranged on the side wall of the dust removing chamber (1) at a position below the position near the positioning pin (16), and drying agent powder, catalyst suspension or high-temperature drying air is arranged in the loading hopper (17) and is used for secondary smearing and brushing of the catalyst;
the ceramic fiber tube (2) is a porous ceramic fiber tube loaded with a catalyst, and the loading process is to dip catalyst suspension or emulsion and then carry out high-temperature drying at 400-500 ℃;
any one of the backflushing nozzles (7) is provided with an electromagnetic valve for controlling a switch of backflushing dedusting;
the use method of the ceramic fiber pipe filtering device for the calcium carbide furnace gas treatment system comprises the following steps:
s1, firstly, shortening the push rod supporting leg (12) to the shortest position, then placing the movable limiting plate (15) on the brush plate (13), and inserting the ceramic fiber tube (2) into the through hole III and the through hole II from the sealing door (10);
s2, closing the sealing door (10), when the movable limiting plate (15) is lifted to the highest position, sealing the top end face of the ceramic fiber tube (2) against the fixed limiting plate (5), and fixedly installing the movable limiting plate (15) through the positioning pin (16);
s3, during dust removal, the brush plate (13) is lifted and lowered in a reciprocating mode, and the outer wall of the ceramic fiber pipe (2) is scrubbed;
s4, blowing high-temperature dry air with the temperature of more than 200 ℃ from a feeding hopper (17) during drying, adding desiccant powder, and keeping the outer wall of the ceramic fiber tube (2) dry;
s5, when the catalyst is coated for the second time, adding the catalyst suspension from the feed hopper (17), leveling the catalyst suspension on the upper surface of the brush plate (13) after 15S to make the catalyst suspension slowly permeate the through hole II, lifting the brush plate (13) rapidly and repeatedly to coat the outer wall of the ceramic fiber tube (2), and blowing high-temperature dry air with the temperature of more than 400 ℃ from the feed hopper (17) after the catalyst is uniformly coated to dry the outer wall of the ceramic fiber tube (2), thus finishing the second coating.
2. The ceramic fiber tube filtering device for the calcium carbide furnace gas processing system according to claim 1, wherein the ash discharge valve (4) is specifically a turnover ash discharge valve, the ash discharge valve (4) is composed of a rotating shaft penetrating through the inner side wall of the bottom funnel outlet of the dust removing chamber (1) and an arc-shaped plate fixed on the rotating shaft in an annular mode, and one end of the rotating shaft is fixedly connected with a low-speed motor.
3. The ceramic fiber tube filtering device for the calcium carbide furnace gas treatment system according to claim 1, wherein a boss is arranged on the inner surface of the sealing door (10), a rubber layer is wrapped on the peripheral wall of the boss, and when the sealing door (10) is clamped in the installation opening, the surface of the boss is flush with the inner side wall of the dust removal chamber (1) and no gap exists between the sealing door (10) and the installation opening.
4. The ceramic fiber pipe filtering device for the calcium carbide furnace gas treatment system according to claim 1, wherein a universal wheel (18) is fixedly connected to the bottom end of the push rod supporting foot (12), and the universal wheel (18) is provided with a brake pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011406898.4A CN112354301B (en) | 2020-12-04 | 2020-12-04 | Ceramic fiber pipe filtering device for calcium carbide furnace gas treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011406898.4A CN112354301B (en) | 2020-12-04 | 2020-12-04 | Ceramic fiber pipe filtering device for calcium carbide furnace gas treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112354301A CN112354301A (en) | 2021-02-12 |
| CN112354301B true CN112354301B (en) | 2022-02-11 |
Family
ID=74535844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011406898.4A Active CN112354301B (en) | 2020-12-04 | 2020-12-04 | Ceramic fiber pipe filtering device for calcium carbide furnace gas treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112354301B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113198260A (en) * | 2021-04-09 | 2021-08-03 | 安徽华塑股份有限公司 | Filter equipment for calcium carbide furnace gas treatment |
| CN113289423B (en) * | 2021-05-31 | 2022-12-09 | 兰州华亮自动化电子科技有限公司 | Automatic cloth bag replacing device of bag type dust collector |
| CN115531998A (en) * | 2022-09-27 | 2022-12-30 | 安徽华塑股份有限公司 | Special ceramic fiber pipe of carbide stove tail gas treatment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003055577A1 (en) * | 2001-12-29 | 2003-07-10 | Pall Corporation | Filter element |
| CN110354912A (en) * | 2019-08-08 | 2019-10-22 | 杭州玺富环保科技有限公司 | Catalytic type ceramic fibre chimney filter production line and production technology |
| CN210699494U (en) * | 2019-06-26 | 2020-06-09 | 北京济元紫能环境工程有限公司 | A compound pipe of SOx/NOx control dust removal for environmental protection flue gas is synthesized and is administered |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0949421A (en) * | 1995-05-30 | 1997-02-18 | Sumitomo Electric Ind Ltd | Particulate trap for diesel engine |
| US6863868B1 (en) * | 2000-09-29 | 2005-03-08 | Siemens Westinghouse Power Corporation | Catalytically enhanced filtration apparatus |
| US6946013B2 (en) * | 2002-10-28 | 2005-09-20 | Geo2 Technologies, Inc. | Ceramic exhaust filter |
| US8926926B2 (en) * | 2009-11-25 | 2015-01-06 | GM Global Technology Operations LLC | Exhaust particulate management for gasoline-fueled engines |
| CN102008857B (en) * | 2010-09-21 | 2013-07-17 | 昆山海普过滤分离科技有限公司 | Filter element for filtering high-temperature dust and purifying gas as well as preparation method and application thereof |
| EP2554238B1 (en) * | 2011-08-05 | 2013-12-18 | Pall Corporation | Catalytic filter system |
| CN109661262A (en) * | 2016-05-09 | 2019-04-19 | 尤尼弗瑞克斯 I 有限责任公司 | Catalytic filter media and preparation method thereof with high surface area material |
| CN108771916A (en) * | 2018-07-03 | 2018-11-09 | 合肥科达工业设备有限公司 | A kind of open furnace body exhaust gas dust filter device |
| CN208642272U (en) * | 2018-07-08 | 2019-03-26 | 飞潮（无锡）过滤技术有限公司 | A kind of high temperature desulfurizing denitration purification integrated device |
| CN209646094U (en) * | 2018-12-26 | 2019-11-19 | 中国华电科工集团有限公司 | A kind of dust removal integrated equipment of non-electrical industry denitrating flue gas |
| CN209828538U (en) * | 2019-03-06 | 2019-12-24 | 杭州玺富环保科技有限公司 | Converter flue gas purification treatment system |
| CN111097247A (en) * | 2019-12-23 | 2020-05-05 | 江西理工大学 | Environment-friendly chemical equipment waste gas treatment device and use process |
-
2020
- 2020-12-04 CN CN202011406898.4A patent/CN112354301B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003055577A1 (en) * | 2001-12-29 | 2003-07-10 | Pall Corporation | Filter element |
| CN210699494U (en) * | 2019-06-26 | 2020-06-09 | 北京济元紫能环境工程有限公司 | A compound pipe of SOx/NOx control dust removal for environmental protection flue gas is synthesized and is administered |
| CN110354912A (en) * | 2019-08-08 | 2019-10-22 | 杭州玺富环保科技有限公司 | Catalytic type ceramic fibre chimney filter production line and production technology |
Non-Patent Citations (1)
| Title |
|---|
| 催化裂化装置催化剂浓度和粒度采样器设计改进;苏志忠等;《石油化工设备》;20160725(第04期);102-106 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112354301A (en) | 2021-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112354301B (en) | Ceramic fiber pipe filtering device for calcium carbide furnace gas treatment system | |
| CN201643893U (en) | Radial flow long-bag low-pressure pulse bag type dust collector | |
| CN201823666U (en) | Dry spray booth | |
| CN102125787A (en) | Runoff long-bag low-pressure pulse bag type dust collector | |
| CN108479237A (en) | A kind of high gravity dedusting system and its application method | |
| KR20070099884A (en) | Catalyst ceramic filter and its producing method and application unit | |
| CN110193262A (en) | A kind of air cleaning unit based on ultrasonic technique | |
| CN207913956U (en) | A kind of electrostatic precipitator flue gas even distribution device | |
| CN116672879B (en) | Flue gas treatment system of glass kiln | |
| CN103752112B (en) | Wet smoke processing device | |
| CN219630891U (en) | Novel converter gas dry-method high-temperature-resistant double-layer filter cylinder dust remover | |
| CN203678187U (en) | Wet-type smoke dust processing device | |
| CN206121390U (en) | Wet -type dust collector | |
| CN201023016Y (en) | Venture dust-removing device | |
| CN202254028U (en) | Pulse blowing filter drum type air handling unit | |
| CN210114954U (en) | Gas column type active coke regeneration gas sealing device | |
| CN209348364U (en) | A kind of catalytic combustion system in waste gas treatment process | |
| CN217180757U (en) | Rock wool board monomer burning detection device | |
| CN214287239U (en) | Flue gas dust filter tube, filter device and filter system | |
| CN217092624U (en) | Paint mist particle removing device | |
| CN220506730U (en) | Waste gas treatment system | |
| CN219784323U (en) | Combined ceramic fiber filter tube dry desulfurization and dust removal denitration integrated system | |
| CN220288250U (en) | Material dehumidifying pre-dedusting and smoke circulating device of sintering machine | |
| CN219209438U (en) | Blowback pulse cloth bag cyclone integrated dust remover | |
| CN219681965U (en) | Ceramic membrane tube offline cleaning assembly for high-temperature flue gas purification |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |