CN213159790U - Filter equipment for high temperature dust removal - Google Patents
Filter equipment for high temperature dust removal Download PDFInfo
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- CN213159790U CN213159790U CN202021563874.5U CN202021563874U CN213159790U CN 213159790 U CN213159790 U CN 213159790U CN 202021563874 U CN202021563874 U CN 202021563874U CN 213159790 U CN213159790 U CN 213159790U
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- filter bag
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- filter
- dust removal
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Abstract
The utility model discloses a filter equipment for high temperature dust removal, including the clamp plate and the tube sheet of rigid coupling in proper order, the opposite side of tube sheet has the grid through the pull rod rigid coupling, is connected with two at least high temperature filter bags between grid and the tube sheet, and the clamp plate is provided with just to the through-hole a of high temperature filter bag, and the tube sheet is provided with the through-hole c of installation high temperature filter bag, and through-hole a and through-hole c set up relatively. The utility model relates to a filter equipment for high temperature dust removal has high accuracy, high temperature resistant, corrosion-resistant, thermal shock resistance's characteristics.
Description
Technical Field
The utility model belongs to the technical field of high temperature dusty gas purifies, concretely relates to filter equipment for high temperature removes dust.
Background
At present, the purification of high-temperature smoke gas by pyrometallurgical smelting, the purification of high-temperature dust-containing smoke gas in clean coal gasification technologies and the purification of high-temperature waste gas of an incinerator are all direct purification and dust removal technologies of dust-containing gas at high temperature. The key of the high-temperature gas dust removal is to directly realize gas-solid separation of dust-containing gas at high temperature, so that on one hand, the purpose of purifying the gas is achieved while the sensible heat utilization of the high-temperature gas is not influenced, and meanwhile, the recovered gas can be recycled, thereby improving the energy utilization rate; on the other hand, the process can be simplified, the investment of process equipment can be saved, and the production period can be shortened. However, the difficulty in the current high-temperature flue gas dust removal technology is that the common filter material cannot resist the high temperature of more than 500 ℃ and cannot meet the requirements of corrosion resistance and thermal shock resistance under the high-temperature condition.
With the development of clean energy conversion, efficient energy utilization, environmental purification and other important technologies, the demand for high-temperature filter bags and technologies is explosively increased in recent years. Therefore, a high-precision, high-temperature-resistant, corrosion-resistant and thermal shock-resistant filtering device is urgently needed to be researched.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a filter equipment for high temperature dust removal has high accuracy, high temperature resistant, corrosion-resistant, thermal shock resistance's characteristics.
The utility model discloses the technical scheme who adopts is a filter equipment for high temperature dust removal, including the clamp plate and the tube sheet of rigid coupling in proper order, the opposite side of tube sheet has the grid through the pull rod rigid coupling, is connected with two at least high temperature filter bags between grid and the tube sheet, and the clamp plate is provided with just to the through-hole a of high temperature filter bag, and the tube sheet is provided with the through-hole c of installation high temperature filter bag, and through-hole a and through-hole c set up relatively.
The utility model discloses a characteristics still lie in:
the upper surface and the lower surface of the tube plate are provided with at least two blind holes with internal threads, the pressing plate body is provided with at least two through holes b, and the pressing plate and the tube plate are connected through the through holes b and the blind holes by fastening bolts.
The high-temperature filter bag comprises a filter bag body, wherein the two ends of the filter bag body are fixedly connected with a pipe orifice flange and a bottom cover respectively, the bottom cover body is provided with a threaded connecting rod, and a nut b is installed on the threaded connecting rod.
A filter bag lining is arranged in the filter bag body, and two ends of the filter bag lining are fixedly connected with the pipe orifice flange and the bottom cover respectively; the filter bag lining comprises a perforated pipe or a keel frame.
The grating is provided with at least two threaded connecting rod holes, and the outer edge of the grating is oppositely provided with at least two pull rod holes; the bodies at the two ends of the pull rod are provided with external threads, the pull rod is respectively connected with a pull rod hole of the grille and a blind hole of the tube plate, and one end of the pull rod, which is close to the grille, is provided with a nut a; the high-temperature filter bag is connected with the grating through a threaded connecting rod hole by a threaded connecting rod; the pipe orifice flange is arranged on the upper surface of the pipe plate through a through hole c.
A high-temperature gasket is arranged between the pipe orifice flange and the pipe plate; the high-temperature gasket is an annular metal gasket or an annular nonmetal gasket.
The grating comprises a rectangular, circular, triangular or rhombic structure, the rectangular grating body is uniformly provided with at least two rectangular holes, and the circular grating body is provided with at least one circular hole; the triangular grid body is provided with at least one triangular hole; the rhombus grid body is provided with at least one diamond hole.
The filter bag body is a non-metal filter bag or a metal filter bag, the pipe orifice flange is welded or integrally formed with the filter bag body, the bottom cover is welded or integrally formed with the filter bag body, and the threaded connecting rod is welded with the bottom cover.
The utility model has the advantages that:
the utility model relates to a high temperature is filter equipment for dust removal, simple structure, installation, maintenance are convenient, can be high temperature resistant, corrosion resistant, and filtering precision and filtration efficiency are high, and the gas permeability is good, durable in use, can long period, stable online operation; the utility model relates to a high temperature is filter equipment for dust removal, the high temperature filter bag of selecting for use can bear higher operating temperature, and filter accuracy is high, the gas permeability is good, and corrosion resistance is good, and the oxidation resistance is strong, is difficult to be corroded by other chemical substances, and long-lived, durable, and resistance to compression tensile is good moreover, non-deformable; the utility model relates to a high temperature is removed dust and is used filter equipment, the gasket of selecting for use can guarantee the sealing performance of high temperature filter bag in the temperature range of 200 ~ 500 ℃; the utility model relates to a high temperature is removed dust and is used filter equipment, the relative position of the high temperature filter bag selected for use and tube sheet, grid is stable, improve the thermal shock resistance of filter equipment; the utility model relates to a high temperature is filter equipment for dust removal can be applied to industry flue gas dust removal field, especially high temperature, the harsh operating mode condition of strong corrosion such as chemical industry, metallurgy, building materials, electric power, oil, new forms of energy.
Drawings
FIG. 1 is a schematic structural view of a filter device for high temperature dust removal according to the present invention;
FIG. 2 is a schematic structural view of a high temperature filter bag in a filter device for high temperature dust removal according to the present invention;
fig. 3 is a schematic structural diagram of a grille in the filtering device for high-temperature dust removal of the present invention.
In the figure, 1, a nut a, 2, a grid, 3, a pull rod, 4, a high-temperature filter bag, 4-1, a pipe orifice flange, 4-2, a filter bag body, 4-3, a filter bag lining, 4-4, a bottom cover, 4-5, a threaded connecting rod, 4-6, a nut b, 5, a pipe plate, 6, a high-temperature gasket, 7, a pressure plate and 8, fastening screws are arranged.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a filter equipment for high temperature dust removal, the structure is shown in figure 1, including clamp plate 7 and the tube sheet 5 of rigid coupling in proper order, the opposite side of tube sheet 5 has grid 2 through 3 rigid couplings of pull rod, is connected with two at least high temperature filter bags 4 between grid 2 and the tube sheet 5, and clamp plate 7 is provided with just to the through-hole an of high temperature filter bag 4, and tube sheet 5 is provided with the through-hole c of installation high temperature filter bag 4, and through-hole a and through-hole c set up relatively.
Preferably, the upper surface and the lower surface of the tube plate 5 are provided with at least two blind holes with internal threads, the pressing plate 7 body is provided with at least two through holes b, and the pressing plate 7 and the tube plate 5 are connected through the through holes b and the blind holes by fastening bolts 8.
Preferably, as shown in fig. 2, the high temperature filter bag 4 comprises a filter bag body 4-2, two ends of the filter bag body 4-2 are respectively and fixedly connected with a pipe orifice flange 4-1 and a bottom cover 4-4, the bottom cover 4-4 body is provided with a threaded connecting rod 4-5, and the threaded connecting rod 4-5 is provided with a nut b 4-6. Wherein, the inner opening of the pipe orifice flange 4-1 is a Venturi nozzle, which can improve the blowing performance of the back blowing airflow.
Preferably, a filter bag lining 4-3 is arranged in the filter bag body 4-2, and two ends of the filter bag lining 4-3 are fixedly connected with the pipe orifice flange 4-1 and the bottom cover 4-4 respectively; the filter bag lining 4-3 comprises a perforated pipe or a keel frame.
Preferably, as shown in fig. 3, the grating 2 is provided with at least two threaded connecting rod holes, and the outer edge of the grating 2 is oppositely provided with at least two pull rod holes; the body at the two ends of the pull rod 3 is provided with external threads, the pull rod 3 is respectively connected with a pull rod hole of the grating 2 and a blind hole of the tube plate 5, and one end of the pull rod 3 close to the grating 2 is provided with a nut a 1;
the high-temperature filter bag 4 is connected with the grating 2 through a threaded connecting rod 4-5 through a threaded connecting rod hole; the orifice flange 4-1 is attached to the upper surface of the tube sheet 5 through the through-hole c.
Preferably, a high-temperature gasket 6 is arranged between the pipe orifice flange 4-1 and the pipe plate 5; the high-temperature gasket 6 is an annular metal gasket or an annular non-metal gasket.
Preferably, as shown in fig. 3, the grid 2 comprises a rectangular, circular, triangular or rhombic structure, the rectangular grid 2 body is uniformly provided with at least two rectangular holes, and the circular grid 2 body is provided with at least one circular hole; the triangular grating 2 body is provided with at least one triangular hole; the rhombic grid 2 body is provided with at least one rhombic hole.
Preferably, the filter bag body 4-2 is a non-metal filter bag or a metal filter bag, and the high temperature filter bag 4 includes, but is not limited to, ceramics, ceramic fiber, Fe3Al, Ni-based alloy, Ti-based alloy; the pipe orifice flange 4-1 is welded or integrally formed with the filter bag body 4-2, the bottom cover 4-4 is welded or integrally formed with the filter bag body 4-2, and the threaded connecting rod 4-5 is welded with the bottom cover 4-4.
The utility model relates to a high temperature is filter equipment for dust removal, the theory of operation as follows:
firstly, selecting a grid 2 with a proper specification and shape according to actual needs, taking a rectangular grid 2 as an example, cutting the grid 2 into a hollow structure by a whole steel plate so as to prevent dust accumulation, selecting a plurality of high-temperature filter bags 4 according to specific working conditions in the actual use process, and respectively welding the end parts of filter bag linings 4-3 on a bottom cover 4-4 and a pipe orifice flange 4-1; the filter bag lining 4-3 can support the filter bag body 4-2, so that the service life of the high-temperature filter bag 4 is prolonged;
when the filtering device of the utility model is used, firstly, the high temperature filter bag 4 is arranged on the tube plate 5, and the grating 2 is connected with the tube plate 5 through the pull rod 3; in order to effectively ensure the sealing performance, a high-temperature gasket 6 can be arranged between the pipe orifice flange 4-1 and the upper surface of the pipe plate 5; wherein, the high-temperature gasket 6 can prevent the air from escaping from the two sides of the high-temperature filter bag 4 before and after filtration, and ensure the sealing effect in the temperature range of 200-500 ℃; the arrangement of the through holes c on the tube plate 5 can be selected according to the diameter of the equipment, and can be uniformly arranged or arranged in groups along the circumferential direction, generally, the equipment with smaller diameter is uniformly arranged, and vice versa, the equipment with smaller diameter is arranged in groups, including but not limited to arrangement and split arrangement; the tube plate 5 and the pressure plate 7 are matched for use, so that the installation reliability of the high-temperature filter bag 4 is ensured; the through hole a is formed in the pressing plate 7, so that the clean gas can smoothly reach the clean side above the pressing plate 7; wherein, the pull rod 3 and the grating 2 mainly play a role in fixing the high-temperature filter bag 4, and the thermal shock resistance of the high-temperature filter bag is improved.
The working process of the high temperature filter bag 4 is that when the dust-containing gas passes through the high temperature filter bag 4, the dust is adsorbed on the outer surface of the filter bag body 4-2 or isolated outside the filter bag body 4-2, and the purified gas is discharged from the inside of the high temperature filter bag 4 to the through hole a of the pressure plate 7.
After the high-temperature filter bag 4 is used for a period of time, a layer of filter cake is accumulated on the outer layer of the high-temperature filter bag, the air permeability of the high-temperature filter bag 4 is influenced by the formation of the filter cake, and the filtering efficiency is reduced, so that back flushing and dust removal are required to be carried out regularly. During blowback deashing, the blowback gas can reach 4 entrances of high temperature filter bag through predetermined blowback pipeline, and through the mouth of pipe flange 4-1 of high temperature filter bag 4, the venturi nozzle of the inside processing of mouth of pipe flange 4-1 can play the effect of pressure boost to blowback gas to improve blowback gaseous blowback performance, remove the filter cake on 4 top layers of high temperature filter bag to the at utmost, make it obtain the regenerated effect of blowback.
Claims (8)
1. The utility model provides a filter equipment for high temperature dust removal, its characterized in that, including clamp plate (7) and tube sheet (5) of rigid coupling in proper order, the opposite side of tube sheet (5) has grid (2) through pull rod (3) rigid coupling, be connected with two at least high temperature filter bags (4) between grid (2) and tube sheet (5), clamp plate (7) are provided with through-hole an just to high temperature filter bag (4), tube sheet (5) are provided with the through-hole c of installation high temperature filter bag (4), through-hole a and through-hole c set up relatively.
2. The filter unit for removing dust at high temperature according to claim 1, wherein the upper and lower surfaces of the tube plate (5) are provided with at least two blind holes with internal threads, the body of the pressure plate (7) is provided with at least two through holes b, and the pressure plate (7) and the tube plate (5) are connected by fastening bolts (8) through the through holes b and the blind holes.
3. The filtering device for high-temperature dust removal according to claim 2, wherein the high-temperature filter bag (4) comprises a filter bag body (4-2), the two ends of the filter bag body (4-2) are respectively and fixedly connected with a pipe orifice flange (4-1) and a bottom cover (4-4), the bottom cover (4-4) body is provided with a threaded connecting rod (4-5), and the threaded connecting rod (4-5) is provided with a nut b (4-6).
4. The filter device for high-temperature dust removal according to claim 3, wherein a filter bag lining (4-3) is arranged in the filter bag body (4-2), and two ends of the filter bag lining (4-3) are respectively fixedly connected with the pipe orifice flange (4-1) and the bottom cover (4-4);
the filter bag lining (4-3) comprises a perforated pipe or a keel frame.
5. A filter unit for removing dust at high temperature according to claim 3 or 4, wherein the grille (2) is provided with at least two screw connecting rod holes, and the outer edge of the grille (2) is oppositely provided with at least two pull rod holes; the outer threads are arranged on the bodies at the two ends of the pull rod (3), the pull rod (3) is respectively connected with a pull rod hole of the grating (2) and a blind hole of the tube plate (5), and a nut a (1) is arranged at one end, close to the grating (2), of the pull rod (3);
the high-temperature filter bag (4) is connected with the grating (2) through a threaded connecting rod (4-5) through a threaded connecting rod hole; the pipe orifice flange (4-1) is arranged on the upper surface of the pipe plate (5) through a through hole c.
6. A filter unit for high temperature dust removal according to claim 5, wherein a high temperature gasket (6) is provided between the port flange (4-1) and the tube sheet (5); the high-temperature gasket (6) is an annular metal gasket or an annular nonmetal gasket.
7. The filter device for removing dust at high temperature according to claim 5, wherein the grid (2) comprises a rectangular, circular, triangular or rhombic structure, the rectangular grid (2) body is uniformly provided with at least two rectangular holes, and the circular grid (2) body is provided with at least one circular hole; the triangular grating (2) body is provided with at least one triangular hole; the rhombic grating (2) body is provided with at least one rhombic hole.
8. The filter unit for high temperature dust removal according to claim 3 or 4, wherein the filter bag body (4-2) is a non-metal filter bag or a metal filter bag, the nozzle flange (4-1) is welded or integrally formed with the filter bag body (4-2), the bottom cover (4-4) is welded or integrally formed with the filter bag body (4-2), and the threaded connecting rod (4-5) is welded with the bottom cover (4-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021563874.5U CN213159790U (en) | 2020-07-31 | 2020-07-31 | Filter equipment for high temperature dust removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021563874.5U CN213159790U (en) | 2020-07-31 | 2020-07-31 | Filter equipment for high temperature dust removal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213159790U true CN213159790U (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021563874.5U Active CN213159790U (en) | 2020-07-31 | 2020-07-31 | Filter equipment for high temperature dust removal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213159790U (en) |
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2020
- 2020-07-31 CN CN202021563874.5U patent/CN213159790U/en active Active
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