CN109734235B - Desulfurization waste water zero release filter equipment - Google Patents
Desulfurization waste water zero release filter equipment Download PDFInfo
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- CN109734235B CN109734235B CN201910138277.3A CN201910138277A CN109734235B CN 109734235 B CN109734235 B CN 109734235B CN 201910138277 A CN201910138277 A CN 201910138277A CN 109734235 B CN109734235 B CN 109734235B
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- 239000002351 wastewater Substances 0.000 title claims abstract description 82
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 69
- 230000023556 desulfurization Effects 0.000 title claims abstract description 69
- 239000004744 fabric Substances 0.000 claims abstract description 154
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 103
- 238000001914 filtration Methods 0.000 claims abstract description 28
- 239000008213 purified water Substances 0.000 claims abstract description 5
- 239000010802 sludge Substances 0.000 claims description 32
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 239000012535 impurity Substances 0.000 abstract description 10
- 238000001704 evaporation Methods 0.000 abstract description 4
- 230000008020 evaporation Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 9
- 239000002699 waste material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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- Filtration Of Liquid (AREA)
Abstract
The invention relates to a desulfurization wastewater zero-emission filtering device, which comprises a shell, a desulfurization wastewater pipe and at least one filter cloth, wherein the side wall of the shell is provided with an air inlet and an air outlet, the air inlet is communicated with a hot air pipeline, the air outlet is communicated with a purified water collecting pipeline, and the top wall of the shell is provided with a water pipe orifice; the desulfurization waste water pipe is fixedly connected with the top surface of the shell corresponding to the water pipe orifice, and is provided with a water dripping hole with a downward opening; the filter cloth is vertically arranged, the filter cloth is connected with two opposite side walls of the shell, an included angle between the filter cloth and the flowing direction of hot air in the hot air pipeline is 10-80 degrees, and the water dropping hole is correspondingly arranged above the filter cloth. The filtering device adopts the vertically suspended filter cloth for filtering, increases the evaporation area, has high filtering efficiency and good water purifying effect, impurities in the wastewater are filtered by the filter cloth, the filtered water vapor can be reused or directly discharged without pollution, and the device has low energy consumption and low use cost.
Description
Technical Field
The invention relates to the field of environmental protection equipment, in particular to a desulfurization wastewater zero-emission filtering device.
Background
The limestone-gypsum method is widely used in the existing wet desulfurization method of boiler flue gas, and the wastewater generated in the limestone/gypsum method process mainly comes from a gypsum dehydration and cleaning system. The impurities contained in the wastewater mainly comprise suspended matters, supersaturated sulfite, sulfate and heavy metals, and many of the impurities are first pollutants which are required to be strictly controlled in the national environmental protection standard.
Therefore, how to filter and purify desulfurization wastewater, so that the wastewater can be discharged or reused without pollution is a technical problem which needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a device for filtering desulfurization wastewater.
The technical scheme for solving the technical problems is as follows: the desulfurization wastewater zero-emission filtering device comprises a shell, a desulfurization wastewater pipe and at least one filter cloth, wherein the side wall of the shell is provided with an air inlet and an air outlet, the air inlet is communicated with a hot air pipeline, the air outlet is communicated with a purified water collecting pipeline, and the top wall of the shell is provided with a water pipe orifice; the desulfurization waste pipe is fixedly connected with the top surface of the shell corresponding to the water pipe opening, and is provided with a water dripping hole with a downward opening; the filter cloth is vertically arranged, the filter cloth is connected with two opposite side walls of the shell, an included angle between the flowing directions of hot air in the hot air pipeline of the filter cloth is 10-80 degrees, and the water dripping hole is correspondingly arranged above the filter cloth.
The beneficial effects of the invention are as follows: the desulfurization waste water drops downwards to vertical filter cloth through the drip hole of desulfurization waste water pipe or blows to the filter cloth through hot air, and impurity in the waste water is filtered by the filter cloth and stays in air intake one side and flows to the casing lower part along with rivers, and hot air blows in from the air intake, and the water purification after filtering on the filter cloth filters to air outlet one side and is evaporated by hot air, and steam is discharged along with hot air from the air outlet, along the clean water collecting pipeline entering outside clean water pond. The filtering device adopts the vertically suspended filter cloth for filtering, increases the evaporation area, has high filtering efficiency and good water purifying effect, impurities in the wastewater are filtered by the filter cloth, the filtered water can be reused or directly discharged without pollution, and the device has low energy consumption and low use cost.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the filter cloth is at least two, the desulfurization waste pipe has at least two section of dripping and two linkage segment, the section of dripping with filter cloth one-to-one sets up, the section of dripping has the opening decurrent the hole of dripping, the both ends of section of dripping are linked together with two respectively the linkage segment.
The beneficial effects of adopting the further scheme are as follows: the dripping section corresponds to the filter cloth, and a plurality of filter cloths are used for filtering simultaneously, so that the filtering efficiency is high.
Further, the filter cloth device further comprises two filter cloth supports, the two filter cloth supports are respectively connected with the two opposite side walls of the shell, and two opposite ends of the filter cloth are respectively detachably connected with the two filter cloth supports.
The beneficial effects of adopting the further scheme are as follows: the filter cloth is detachably connected with the filter cloth support, so that the filter cloth is convenient to detach and replace.
Further, still include two at least bracing pieces, every the both ends of bracing piece are connected with two respectively the filter cloth support, the bracing piece with the filter cloth one-to-one sets up, the filter cloth wears to establish on the bracing piece.
The beneficial effects of adopting the further scheme are as follows: the support rods support the filter cloth, so that the filter cloth is smooth, and the evaporation area and the evaporation efficiency are ensured.
Further, the filter cloth support is provided with an outer frame and at least one vertical fixing section, and the fixing sections are arranged in one-to-one correspondence with the filter cloth and are connected.
The beneficial effects of adopting the further scheme are as follows: the two ends of the filter cloth are connected with the fixed sections of the filter cloth support, the positions of the fixed sections are fixed, and the included angles between the filter cloth and the side wall before and after replacement are consistent.
Further, the desulfurization waste water treatment device comprises a water return pipe and a water suction pump, wherein a water return hole is formed in the bottom of the side wall of the shell, a water inlet of the water suction pump is fixedly connected and communicated with the water return hole, one end of the water return pipe is fixedly connected and communicated with a water outlet of the water suction pump, and the other end of the water return pipe is fixedly connected with the pipe wall of the desulfurization waste water pipe and communicated with the desulfurization waste water pipe.
The beneficial effects of adopting the further scheme are as follows: the liquid which is stored in the shell and cannot be evaporated is returned to the desulfurization waste water pipe through the water suction pump and is filtered again.
Further, the device also comprises a mud scraper, the side wall of the shell is provided with a mud hole, the mud hole is arranged below the water return hole, the mud scraper is connected with the inner wall of the shell, and a scraping plate of the mud scraper is abutted to the bottom wall of the inner side of the shell.
The beneficial effects of adopting the further scheme are as follows: the desulfurization waste water is filtered by the filter cloth in the filtration process, and part of impurities drop to the bottom of the shell along with the waste water which is not absorbed by the filter cloth, the impurities are deposited and piled up at the bottom of the shell, and the mud scraper scrapes out the impurities at the bottom along the mud discharging holes, so that the follow-up further recycling is facilitated.
Specifically, the mud scraper is arranged below the filter cloth and does not interfere with the filter cloth. The scraper may be a chain scraper or any other type of scraper.
Further, the device also comprises a sludge filter cloth, wherein the sludge filter cloth is parallel to the bottom wall of the shell, and the sludge filter cloth is connected with the inner wall of the shell and divides the cavity in the shell into a first cavity positioned at the upper part and a second cavity positioned at the lower part.
The beneficial effects of adopting the further scheme are as follows: the lower part of the shell is provided with a horizontal sludge filter cloth, the sludge is filtered by the sludge filter cloth, and the filtered wastewater is stored below the sludge filter cloth.
Further, the water return hole is positioned on the side wall of the second cavity, and the water return pipe is communicated with the second cavity.
The beneficial effects of adopting the further scheme are as follows: the wastewater stored in the shell after being filtered by the sludge filter cloth is filtered and evaporated again by a return water Kong Benghui desulfurization wastewater pipe.
Drawings
FIG. 1 is a schematic three-dimensional structure of a desulfurization wastewater zero-emission filtering device;
FIG. 2 is an A-direction cross-sectional view of a first embodiment of a desulfurization wastewater zero-emission filtering apparatus according to the present invention;
FIG. 3 is a top view of a desulfurization wastewater zero release filter device of the present invention;
FIG. 4 is a schematic diagram of a filter cloth support structure of a desulfurization wastewater zero-emission filtering device;
FIG. 5 is a cross-sectional view in the direction A of a second embodiment of a desulfurization wastewater zero-emission filtration device according to the present invention;
FIG. 6 is a schematic diagram showing the connection mode of the support rod and the filter cloth of the desulfurization wastewater zero-emission filtering device;
FIG. 7 is a schematic diagram of an alternative embodiment of a desulfurization wastewater zero release filter device according to the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. the device comprises a shell, 101, an air inlet, 102, an air outlet, 2, a desulfurization waste water pipe, 3, filter cloth, 4, a filter cloth bracket, 5, a support rod, 6, a sludge discharge hole, 7, a water return pipe, 8 and a sludge filter cloth.
Detailed Description
The principles and features of the present invention are described below with examples given for the purpose of illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1-4, the desulfurization wastewater zero-emission filtering device comprises a shell 1, a desulfurization wastewater pipe 2 and at least one filter cloth 3, wherein the side wall of the shell 1 is provided with an air inlet 101 and an air outlet 102, the air inlet 101 is communicated with a hot air pipeline, the air outlet 102 is communicated with a purified water collecting pipeline, and the top wall of the shell 1 is provided with a water pipe orifice; the desulfurization waste water pipe 2 is fixedly connected with the top surface of the shell 1 corresponding to the water pipe orifice, and the desulfurization waste water pipe 2 is provided with a water dripping hole with a downward opening; the filter cloth 3 is vertically arranged, the filter cloth 3 is connected with two opposite side walls of the shell 1, an included angle a between the flowing directions of hot air in a hot air pipeline of the filter cloth 3 is 10-80 degrees, and the water dripping hole is correspondingly arranged above the filter cloth 3.
Specifically, as shown in fig. 1 to 3, the right side wall of the housing 1 has an air inlet 101, and the left side wall of the housing 1 has an air outlet 102. The air inlet 101 is connected and communicated with one end of a hot air pipeline through a flange, and the other end of the hot air pipeline is connected and communicated with an air outlet of the hot air blower. The air outlet 102 is connected and communicated with one end of a clean water collecting pipeline through a flange, and the other end of the clean water collecting pipeline stretches into the lower part of the water surface of the external clean water tank from top to bottom.
As an alternative to this embodiment, as shown in fig. 7, the right side wall of the housing 1 has an air inlet 101, and the front side wall of the housing 1 has an air outlet 102.
Specifically, as shown in fig. 2, the desulfurization waste pipe 2 is fixedly connected with the top surface of the shell 1, and the water dripping holes correspond to the filter cloth 3, so that the dripped water directly falls on the filter cloth 3 or is blown onto the filter cloth through hot air.
As a further scheme of this embodiment, the filter cloth 3 is at least two, desulfurization waste pipe 2 has at least two section of dripping and two linkage segment, the section of dripping with filter cloth 3 one-to-one sets up, the section of dripping has the opening decurrent drip hole, the both ends of section of dripping are linked together with two linkage segment respectively.
Specifically, as shown in fig. 1-3, the two connecting sections are respectively perpendicular to at least two dripping sections, two ends of each connecting section are closed, two ends of each dripping section are respectively fixedly connected and communicated with side walls of the two connecting sections, the side wall of one connecting section is connected and communicated with one end of a wastewater inlet pipe, the other end of the wastewater inlet pipe is communicated with a wastewater pond, and the wastewater inlet pipe is used for introducing desulfurization wastewater into a desulfurization wastewater pipe 2 from a desulfurization device. At least two drip sections are parallel to each other.
As a further scheme of this embodiment, the filter cloth device further comprises two filter cloth supports 4, wherein the two filter cloth supports 4 are respectively connected with the two opposite side walls of the shell 1, and the two opposite ends of the filter cloth 3 are respectively detachably connected with the two filter cloth supports 4.
Specifically, the left and right sides of the filter cloth 3 are detachably connected with the filter cloth brackets 4 on the left and right sides. The filter cloth 3 and the filter cloth support 4 are detachably connected with the filter cloth support 4 through screws, the filter cloth support 4 is provided with a threaded hole, the filter cloth 3 is provided with a through hole corresponding to the threaded hole, and the screws sequentially penetrate through the filter cloth 3 and the filter cloth support 4 and are in threaded connection with the filter cloth support 4. The filter cloth 3 is convenient to replace periodically.
As a further scheme of the embodiment, the filter cloth filter comprises at least two support rods 5, wherein two ends of each support rod 5 are respectively connected with two filter cloth supports 4, the support rods 5 are arranged in one-to-one correspondence with the filter cloth 3, and the filter cloth 3 is arranged on the support rods 5 in a penetrating manner.
Specifically, the filter cloth support comprises at least four support rods 5, wherein the at least four support rods 5 are parallel to each other, the at least two support rods 5 are fixed on the upper portion of the filter cloth support 4 and are in one-to-one correspondence with the filter cloth 3, and the at least two support rods 5 are fixed on the lower portion of the filter cloth support 4 and are in one-to-one correspondence with the filter cloth 3. The upper edge of the filter cloth 3 is arranged on the upper supporting rod 5 in a penetrating way, and the lower edge of the filter cloth 3 is arranged on the lower supporting rod 5 in a penetrating way. The included angle between the support rod 5 and the plane of the filter cloth support 4 for fixing the filter cloth 3 is 10-80 degrees. The two ends of the supporting rod 5 are fixed with the shell 1 through screws.
Specifically, as shown in fig. 6, a cross-sectional view of the support rod 5 and the filter cloth 3 is shown, where the filter cloth 3 is inserted on the support rod 5, specifically: the edge of the filter cloth 3 is folded to form a cylinder and fixed, and the cylinder is sleeved outside the support rod 5.
As a further development of this embodiment, the filter cloth holder 4 has an outer frame and at least one vertical fastening section, which is arranged in a one-to-one correspondence with the filter cloth 3 and is connected thereto.
Specifically, as shown in fig. 4, the filter cloth support 4 has a rectangular outer frame, the fixing sections are vertically arranged and parallel to each other, and the upper and lower ends of the fixing sections are respectively connected with the upper and lower surfaces of the inner wall of the outer frame.
As a further scheme of this embodiment, as shown in fig. 2, the desulfurization waste water treatment device further comprises a water return pipe 7 and a water suction pump, wherein a water return hole is formed in the bottom of the side wall of the shell 1, a water inlet of the water suction pump is fixedly connected and communicated with the water return hole, one end of the water return pipe 7 is fixedly connected and communicated with a water outlet of the water suction pump, and the other end of the water return pipe 7 is fixedly connected with the pipe wall of the desulfurization waste water pipe 2 and communicated with the desulfurization waste water pipe 2. The liquid which is stored in the shell 1 and cannot be evaporated returns to the desulfurization waste water pipe 2 through the water suction pump, and drops onto the filter cloth 3 from the water dropping hole for filtering again.
As a further scheme of this embodiment, still include the mud scraper, the lateral wall of casing 1 has mud hole 6, mud hole 6 is in the below of return water hole, the mud scraper with the inner wall of casing 1 is connected, the scraper blade of mud scraper with the bottom wall looks butt of casing 1 inboard.
Specifically, the scraping plate of the mud scraper is closely attached to the inner wall of the bottom of the shell 1, and the mud scraper reciprocates or rotates and hangs mud at the bottom to a mud hole for discharging. The sludge collecting tank can be arranged outside the sludge discharge hole and is communicated with the sludge discharge hole through a pipeline, and the recovered sludge can be further treated and recycled. The mud scraper is electrically connected with an external power supply through an electric wire, the structure and the working principle of the mud scraper are the prior art, and a person skilled in the art can adopt the prior art to realize the mud scraper, so that the description is omitted herein for brevity.
The working process of the desulfurization wastewater zero-emission filtering device provided by the embodiment is as follows:
As shown in fig. 1 to 4, the desulfurization wastewater in the wastewater tank flows into the desulfurization wastewater pipe 2 through the wastewater inlet pipe, drops to the upper edge of the filter cloth 3 from the water dropping hole, and impurities in the water are filtered by the filter cloth 3. The air inlet 101 is filled with hot air, the filtered water on the filter cloth 3 is evaporated and blown out of the air outlet 102 along with the hot air, the air outlet 102 is connected with a clean water collecting pipeline, and the filtered water vapor enters the clean water tank along the clean water collecting pipeline. The filtered wastewater is arranged on one side of the filter cloth 3, which faces the air inlet 101, and the wastewater directly falls into the shell 1 along the filter cloth 3. The side wall of the shell 1 is provided with a water return hole, and the wastewater at the bottom is sucked back to the desulfurization wastewater pipe 2. The scraper of the sludge scraper in the shell 1 moves closely to the bottom wall, scrapes the sludge deposited in the shell to the sludge discharge hole 6 and discharges the sludge.
Example two
As shown in fig. 1-4, the desulfurization wastewater zero-emission filtering device comprises a shell 1, a desulfurization wastewater pipe 2 and at least one filter cloth 3, wherein two opposite side walls of the shell 1 are respectively provided with an air inlet 101 and an air outlet 102, the air inlet 101 is communicated with a hot air pipeline, the air outlet 102 is communicated with a purified water collecting pipeline, and the top wall of the shell 1 is provided with a water pipe orifice; the desulfurization waste water pipe 2 is fixedly connected with the top surface of the shell 1 corresponding to the water pipe orifice, and the desulfurization waste water pipe 2 is provided with a water dripping hole with a downward opening; the filter cloth 3 is vertically arranged, the filter cloth 3 is connected with two opposite side walls of the shell 1, an included angle a between the filter cloth 3 and the flowing direction of hot air in the hot air pipeline is 10-80 degrees, and the water dripping hole is correspondingly arranged above the filter cloth 3.
As an alternative to this embodiment, as shown in fig. 7, the right side wall of the housing 1 has an air inlet 101, and the front side wall of the housing 1 has an air outlet 102.
As a further scheme of this embodiment, the filter cloth 3 is at least two, desulfurization waste pipe 2 has at least two section of dripping and two linkage segment, the section of dripping with filter cloth 3 one-to-one sets up, the section of dripping has the opening decurrent drip hole, the both ends of section of dripping respectively with two linkage segment is linked together.
As a further scheme of this embodiment, the filter cloth device further comprises two filter cloth supports 4, wherein the two filter cloth supports 4 are respectively connected with the two opposite side walls of the shell 1, and the two opposite ends of the filter cloth 3 are respectively detachably connected with the two filter cloth supports 4.
As a further scheme of the embodiment, the filter cloth filter comprises at least two support rods 5, wherein two ends of each support rod 5 are respectively connected with two filter cloth supports 4, the support rods 5 are arranged in one-to-one correspondence with the filter cloth 3, and the filter cloth 3 is arranged on the support rods 5 in a penetrating manner.
As a further development of this embodiment, the filter cloth holder 4 has an outer frame and at least one vertical fastening section, which is arranged in a one-to-one correspondence with the filter cloth 3 and is connected thereto.
As a further scheme of this embodiment, still include wet return 7 and suction pump, the bottom of casing 1 lateral wall has the return water hole, the water inlet of suction pump with return water hole fixed connection and be linked together, wet return 7's one end with the delivery port fixed connection and the being linked together of suction pump, wet return 7's the other end with desulfurization waste pipe 2's pipe wall fixed connection and with desulfurization waste pipe 2 is linked together.
As a further scheme of this embodiment, the device further includes a sludge filter cloth 8, the sludge filter cloth 8 is parallel to the bottom wall of the housing 1, and the sludge filter cloth 8 is connected with the inner wall of the housing 1 and divides the cavity in the housing 1 into a first cavity located at the upper part and a second cavity located at the lower part.
Specifically, four sides of the sludge filter cloth 8 are connected with the side wall of the shell 1 through screws.
As a further scheme of this embodiment, the water return hole is located on the side wall of the second cavity, and the water return pipe 7 is communicated with the second cavity.
The working process of the desulfurization wastewater zero-emission filtering device provided by the embodiment is as follows:
As shown in fig. 1, 3-5, the desulfurization wastewater in the wastewater tank flows into the desulfurization wastewater pipe 2 through the wastewater inlet pipe, drops to the upper edge of the filter cloth 3 from the water dropping hole, and impurities in the water are filtered by the filter cloth 3. The air inlet 101 is filled with hot air, the filtered water on the filter cloth 3 is evaporated and blown out of the air outlet 102 along with the hot air, the air outlet 102 is connected with a clean water collecting pipeline, and the filtered water enters the clean water tank along the clean water collecting pipeline. The filtered wastewater is arranged on one side of the filter cloth 3, which faces the air inlet 101, the wastewater falling to the bottom of the shell 1 is filtered by the sludge filter cloth 8, the side wall of the second cavity of the shell 1 is provided with a water return hole, the height of the water return hole is lower than that of the sludge filter cloth 8, and the wastewater at the bottom is sucked back to the desulfurization wastewater pipe 2. The sludge at the bottom is deposited on the sludge filter cloth 8, and the sludge filter cloth 8 needs to be replaced periodically to clean the sludge when the sludge filter is used.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (7)
1. A desulfurization wastewater zero-emission filtering device is characterized by comprising a shell (1), a desulfurization wastewater pipe (2) and at least one filter cloth (3),
The side wall of the shell (1) is provided with an air inlet (101) and an air outlet (102), the air inlet (101) is communicated with a hot air pipeline, the air outlet (102) is communicated with a purified water collecting pipeline, and the top wall of the shell (1) is provided with a water pipe orifice;
the desulfurization waste water pipe (2) is fixedly connected with the top surface of the shell (1) corresponding to the water pipe opening, and the desulfurization waste water pipe (2) is provided with a water dripping hole with a downward opening;
The filter cloth (3) is vertically arranged, the filter cloth (3) is connected with two opposite side walls of the shell (1), an included angle between the filter cloth (3) and the flowing direction of hot air in the hot air pipeline is 10-80 degrees, and the water dripping hole is correspondingly arranged above the filter cloth (3);
The two ends of the connecting section are sealed, the two ends of the water dropping section are fixedly connected and communicated with the side walls of the two connecting sections respectively, and the side wall of one connecting section is connected and communicated with one end of a wastewater inlet pipe;
The novel filter cloth device is characterized by further comprising two filter cloth supports (4), wherein the two filter cloth supports (4) are respectively connected with the two opposite side walls of the shell (1), and the two opposite ends of the filter cloth (3) are respectively detachably connected with the two filter cloth supports (4).
2. The desulfurization wastewater zero release filter device according to claim 1, further comprising at least two support rods (5), wherein two ends of each support rod (5) are respectively connected with two filter cloth supports (4), the support rods (5) are arranged in one-to-one correspondence with the filter cloth (3), and the filter cloth (3) is arranged on the support rods (5) in a penetrating manner.
3. The desulfurization wastewater zero-emission filtering device according to claim 2, wherein the filter cloth bracket (4) is provided with an outer frame and at least one vertical fixing section, and the fixing sections are arranged in one-to-one correspondence with and connected with the filter cloth (3).
4. A desulfurization wastewater zero release filter device according to any one of claims 1-3, further comprising a water return pipe (7) and a water suction pump, wherein a water return hole is formed in the bottom of the side wall of the shell (1), a water inlet of the water suction pump is fixedly connected and communicated with the water return hole, one end of the water return pipe (7) is fixedly connected and communicated with a water outlet of the water suction pump, and the other end of the water return pipe (7) is fixedly connected with the pipe wall of the desulfurization wastewater pipe (2) and communicated with the desulfurization wastewater pipe (2).
5. The desulfurization wastewater zero release filter device according to claim 4, further comprising a mud scraper, wherein a mud discharge hole (6) is formed in the side wall of the shell (1), the mud discharge hole (6) is arranged below the water return hole, the mud scraper is connected with the inner wall of the shell (1), and a scraper blade of the mud scraper is abutted against the bottom wall of the inner side of the shell (1).
6. The desulfurization wastewater zero-emission filtering device according to claim 4, further comprising a sludge filter cloth (8), wherein the sludge filter cloth (8) is parallel to the bottom wall of the shell (1), and the sludge filter cloth (8) is connected with the inner wall of the shell (1) and divides the cavity in the shell (1) into a first cavity at the upper part and a second cavity at the lower part.
7. The desulfurization wastewater zero-emission filtering device according to claim 6, wherein the water return hole is positioned on the side wall of the second cavity, and the water return pipe (7) is communicated with the second cavity.
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| CN201910138277.3A CN109734235B (en) | 2019-02-25 | 2019-02-25 | Desulfurization waste water zero release filter equipment |
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| CN201910138277.3A CN109734235B (en) | 2019-02-25 | 2019-02-25 | Desulfurization waste water zero release filter equipment |
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| CN109734235B true CN109734235B (en) | 2024-05-07 |
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Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
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