CN113304513A - Mechanized tar ammonia water clarifying tank and separation method of tar ammonia water mixture entrained miscellaneous gas - Google Patents
Mechanized tar ammonia water clarifying tank and separation method of tar ammonia water mixture entrained miscellaneous gas Download PDFInfo
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- CN113304513A CN113304513A CN202110646898.XA CN202110646898A CN113304513A CN 113304513 A CN113304513 A CN 113304513A CN 202110646898 A CN202110646898 A CN 202110646898A CN 113304513 A CN113304513 A CN 113304513A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
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Abstract
The invention belongs to the technical field of coking, and provides a mechanized tar ammonia water clarifying tank which comprises a shell, wherein the shell is provided with a tar ammonia water mixture liquid inlet, a tar residue discharge port ammonia water outlet and a tar outlet, a scraper conveyor is arranged in the shell, the discharge end of the scraper conveyor is connected with the tar residue discharge port, a first partition plate is arranged between the tar ammonia water mixture liquid inlet and the tar residue discharge port, a first space is formed between the first partition plate and the tar residue discharge port, and a second space is formed from the first partition plate to the inner cavity of the residual shell in the direction of the tar ammonia water mixture liquid inlet; the shell that the first space corresponds is equipped with first exhaust hole, be equipped with the second exhaust hole on the shell that the second space corresponds, first space and second space are sealed isolation, intercommunication below the liquid level in liquid level top. The invention overcomes the defects of gas leakage, large smell and environmental pollution of the existing ammonia water clarifying tank, and is environment-friendly and safe.
Description
Technical Field
The invention relates to the technical field of coking, in particular to a mechanized tar ammonia water clarifying tank and a separation method of gas mixed with a tar ammonia water mixture.
Background
During the coking process, the raw gas exiting the coke oven coking chamber contains water vapor, tar mist, benzene hydrocarbons, sulfides, cyanides, ammonia, naphthalene, and other compounds. In order to recover and treat these compounds and to make the gas small and easy to transport, it is necessary to cool the gas, the primary cooling of the gas including the cooling of the gas header and the cooling of the primary cooler.
The mechanized ammonia water clarifying tank is a device for separating liquid after cooling a gas collecting channel by utilizing the gravity settling principle to separate tar, ammonia water and tar residues, the section of the tank body is generally ship-shaped, and the tar, the ammonia water and the tar residues enter the tank body and are separated into three layers through clarification: the upper layer is ammonia water, the middle layer is tar, the lower layer is tar residue, the precipitated tar residue is continuously scraped and discharged out of the tank through a scraper conveyor, the tar flows to a tar middle tank through a liquid level regulator, and the ammonia water flows to the ammonia water middle tank from the upper part of the clarifying tank. The utilization rate of the mechanized ammonia water clarifying tank with the structure in the industry is more than 95 percent, and the rest of the mechanized ammonia water clarifying tank generally adopts a vertical tar ammonia water separation tank. The mechanized ammonia water clarifying tank has the advantages that tar residues can be directly scraped out, a super centrifuge is not needed, the water content of the obtained tar is qualified, the process is mature, the operation is stable, and the problems of coal gas leakage, large smell, environmental pollution and the like exist. The tar and ammonia water separating tank has the advantages of small smell and small occupied area, but tar and tar residues are separated by a super centrifuge, the load of the super centrifuge is large, the slag is accumulated at the bottom of a cone, a pipeline is blocked, and the treatment capacity cannot be automatically adjusted.
Therefore, a novel mechanical clarifying tank is needed to be provided, and the defects of the prior art are overcome.
Disclosure of Invention
The invention provides a mechanized tar ammonia water clarifying tank, which overcomes the defects of easy gas leakage and large peculiar smell in the use of the existing clarifying tank, is environment-friendly and safer, and has good market popularization value.
In order to achieve the effect of the invention, the basic concept of the scheme adopted by the invention is as follows:
a mechanized tar ammonia water clarifying tank comprises a shell provided with a tar ammonia water mixture liquid inlet, a tar residue discharge port, an ammonia water outlet and a tar outlet, wherein a scraper conveyor with a discharge end connected with the tar residue discharge port is arranged in the shell;
the shell that the first space corresponds is equipped with first exhaust hole, be equipped with the second exhaust hole on the shell that the second space corresponds, first space and second space are sealed isolation, intercommunication below the liquid level in liquid level top.
In one embodiment, the first space and the second space are sealed and isolated above the liquid level of the tar layer and are communicated below the liquid level of the tar layer.
Optionally, the first exhaust hole is connected with an RTO tail gas system, and the second exhaust hole is connected with a coal gas negative pressure system;
optionally, the first exhaust hole is connected with an absorption tower, the absorption tower is connected with a water washing device, and an air outlet of the water washing device is connected with an RTO tail gas system through a pressurizing fan;
optionally, a pressure gauge and a U-shaped water seal structure are arranged on the top cover plate of the housing corresponding to the second space.
As a mode, the end a of the first partition board is arranged on the top cover board of the housing, and the end B opposite to the end a extends towards the scraper conveyor and is suspended above the scraper conveyor;
the first partition plate further comprises a C end and a D end which are oppositely arranged, and the C end and the D end are oppositely arranged on the shell and clamp two side faces of the top cover plate to be respectively connected.
By one way, the a end of the first partition plate is hermetically welded with a top cover plate of the housing; the end C and the end D of the first partition plate are opposite to the shell and clamp two side faces of the top cover plate to be respectively welded in a sealing mode.
As a mode, a second partition plate opposite to the liquid outlet part of the tar-ammonia water mixture liquid inlet is arranged between the first partition plate and the tar-ammonia water mixture liquid inlet, and the second partition plate comprises an E end and an F end which are arranged in a suspended mode in the liquid level layering direction and are opposite to each other.
As a mode, the end E of the second partition board is arranged below the top cover board in a suspended manner, and the end F is arranged above the scraper conveyor in a suspended manner;
the second baffle plate further comprises a G end and an H end which are oppositely arranged, and the G end and the H end are oppositely arranged on the shell and are used for clamping two side faces of the top cover plate to be respectively connected.
Optionally, the end G and the end H of the second partition plate are opposite to the housing and are sealed and welded to two side surfaces clamping the top cover plate respectively.
As a mode, the liquid inlet of the tar-ammonia water mixture extends into the shell to form a liquid inlet pipe, and the liquid inlet pipe is provided with an opening which discharges liquid towards the direction of the first partition plate.
Optionally, the liquid inlet pipe is a pipe with a lower end opening sealed, and the opening is formed in the circumferential direction of the pipe.
As a mode, the lower port of the liquid inlet pipe is provided with a liquid baffle disc opposite to the lower port.
Optionally, the baffle is welded to the liquid baffle disc.
Optionally, the baffle is an arc-shaped plate with a circle center located on the side of the liquid inlet pipe.
Optionally, the liquid-deflector plate rests on a support member provided within the housing.
Optionally, the supporting component includes at least two parallel beams, and two ends of the beam are opposite to the housing and respectively connected to two side surfaces of the top cover plate.
As a mode, a baffle is arranged on the other side of the liquid baffle disc opposite to the side where the first partition plate is arranged, and the baffle at least comprises a baffle surface opposite to the opening of the liquid inlet pipe.
The invention also provides a separation method of mixed gas in the tar-ammonia water mixture, wherein the tar-ammonia water mixture comprises tar, ammonia water, tar slag and mixed gas, the separation method comprises the steps of separating the tar, the ammonia water and the tar slag by adopting the mechanical tar-ammonia water clarifying tank, and simultaneously separating the gas discharged from the first space and the second space and respectively carrying out post-treatment procedures.
Compared with the prior art, the technical scheme of the invention has the following advantages:
1. the invention divides the inner cavity of the mechanized tar ammonia water clarifying tank into two spaces which are kept sealed and isolated above the liquid level and communicated below the liquid level by arranging the first clapboard, isolates the gas mixed in the two spaces by arranging the first clapboard, greatly reduces the evaporation area of the part communicated with the external environment, and solves the problems of large working environment smell and environmental pollution caused by easy gas blowby of the existing ammonia water clarifying tank.
Furthermore, different tail gases discharged from different spaces are connected with corresponding treatment systems, so that the tail gas direction is optimized, and the utilization rate of material resources is improved.
2. The invention is further provided with a second clapboard to separate the coal gas in the gas-liquid mixture containing tar, ammonia water, tar residue and coal gas, so that the part of the gas with the main component of the coal gas enters a coal gas negative pressure system for recycling;
most of residual gas of the coal gas is removed and discharged from the other space for incineration treatment, so that the burning and explosion hidden danger caused by the mixed coal gas is avoided, and the safety is higher;
in addition, the first partition plate and the second partition plate are mutually matched for use, so that the phenomenon of gas-liquid channeling between two spaces is further effectively avoided, and the device is safer and more environment-friendly.
3. As a further preferable scheme, the invention is also provided with structures such as a liquid blocking disc, a baffle plate and the like which are matched with the first partition plate and the second partition plate for use, which is helpful for fully releasing coal gas in the gas-liquid mixture, further avoiding the coal gas from escaping from the tar residue outlet, basically having no peculiar smell and being more environment-friendly.
In addition, the recycling rate of coal gas is improved, the coal gas is prevented from directly entering an incineration system, and the utilization value of materials is improved.
4. The invention adopts a simple and reliable structure to avoid the problems of gas leakage and large peculiar smell without changing the operation mode of the mechanized ammonia water clarifying tank, thereby not only being beneficial to environmental protection, but also reducing the risk possibly caused by gas leakage.
5. Before the structural improvement of the invention is adopted, the CO index detected by a four-in-one gas detector at the tar residue outlet of the mechanical ammonia water tank clarifying tank is 149ppm, and after the invention is adopted, the CO value detected by the same gas detector at the same part is 0ppm, thus the aims of gas-liquid separation, gas recovery, environmental pollution reduction and safety risk reduction are practically realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic sectional view of a mechanical tar-ammonia water clarifier according to the present invention.
FIG. 2 is a top plan view of the mechanized tar ammonia water clarifier of FIG. 1.
The figure is marked with:
1-a first venting aperture; 2-a first separator; 3-liquid inlet of tar-ammonia water mixture; 4-a liquid inlet pipe; 5-other liquid inlets; 6-second vent hole; 7-a manhole; 8-spare holes; 9-tar residue discharge port; 10-a second separator; 11-a cross beam; 12-liquid blocking disc; 13-a baffle; 14-a scraper conveyor; 15-tar outlet; a 16-ammonia outlet; 17-a tar conveying pipeline; 18-emulsion outlet; 19-a sewage draining outlet; 100-a first space; 200-second space.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The main concept of the embodiments of the invention is as follows:
a mechanized tar ammonia water clarifying tank comprises a shell provided with a tar ammonia water mixture liquid inlet 3, a tar residue discharge port 9, an ammonia water outlet 16 and a tar outlet 15, wherein a scraper conveyor 14 is arranged in the shell, the discharge end of the scraper conveyor 14 is connected with the tar residue discharge port 9, a first partition plate 2 is arranged between the tar ammonia water mixture liquid inlet 3 and the tar residue discharge port 9, a first space 100 is formed between the first partition plate 2 and the tar residue discharge port 9, and a second space 200 is formed from the first partition plate 2 to the inner cavity of the residual shell in the direction of the tar ammonia water mixture liquid inlet 3;
the shell corresponding to the first space 100 is provided with a first exhaust hole 1, the shell corresponding to the second space 200 is provided with a second exhaust hole 6, and the first space 100 and the second space 200 are hermetically isolated above the liquid level and communicated below the liquid level.
By adopting the basic concept, the defects of gas leakage, large pungent odor of working environment and environmental pollution existing in the prior tar ammonia water clarifying tank during use are effectively improved.
In addition, the exhaust gases of the first and second spaces 100 and 200 are separated to facilitate corresponding processing and utilization according to different properties of the two exhaust gases.
The invention also provides a separation method of mixed gas in the tar-ammonia water mixture, wherein the tar-ammonia water mixture comprises tar, ammonia water, tar slag and mixed gas, the separation method comprises the steps of separating the tar, the ammonia water and the tar slag by adopting the mechanical tar-ammonia water clarifying tank, and simultaneously separating the gas discharged from the first space and the second space and respectively carrying out post-treatment procedures.
The main component of the 'gas inclusion' in the invention is coal gas.
On the basis of the basic concept, in order to further achieve better technical effects or solve other more technical problems, research and development personnel continue to develop other preferred schemes. The following is merely an illustration of specific cases for a better understanding of the invention.
Example 1
A mechanized tar ammonia water clarifying tank is disclosed, referring to fig. 1-2, and comprises a shell provided with a tar ammonia water mixture liquid inlet 3, a tar residue discharge port 9, an ammonia water outlet 16 and a tar outlet 15, wherein a scraper conveyor 14 with a discharge end connected with the tar residue discharge port 9 is arranged in the shell, a first partition plate 2 is arranged between the tar ammonia water mixture liquid inlet 3 and the tar residue discharge port 9, a first space 100 is formed between the first partition plate 2 and the tar residue discharge port 9, and a second space 200 is formed from a residual shell inner cavity of the first partition plate 2 towards the direction of the tar ammonia water mixture liquid inlet 3;
the shell corresponding to the first space 100 is provided with a first exhaust hole 1, the shell corresponding to the second space 200 is provided with a second exhaust hole 6, and the first space 100 and the second space 200 are hermetically isolated above the liquid level and communicated below the liquid level.
The liquid level is the highest liquid level formed in the shell after the tar ammonia water (mixture containing tar and ammonia water) to be treated enters.
In a specific embodiment, the first space 100 and the second space 200 are sealed and isolated above the liquid level of the tar layer and communicate below the liquid level of the tar layer.
The tar aqueous ammonia gets into the casing of depositing tank back, can form the layering, and the superiors that is close to casing lamina tecti is the aqueous ammonia layer, and then is the tar layer, then is the tar slag layer, consequently, when the mounted position of first baffle 2 enables first space 100 and second space 200 and keeps keeping apart in tar layer and above position, can prevent the gas or the scurrying of liquid in two spaces better, and coal gas escape is less, and the smell is little.
Of course, if the installation position of the first partition board 2 is extended only to keep the first space 100 and the second space 200 isolated at the ammonia water layer and above, the effects of significantly reducing the gas leakage and improving the environmental standard are also achieved.
As a specific mode, the end a of the first partition board 2 is disposed on the top cover plate of the casing, and the end B opposite to the end a extends toward the scraper conveyor 14 and is suspended above the scraper conveyor 14; the first partition plate 2 further comprises a C end and a D end which are oppositely arranged, and the C end and the D end are oppositely arranged on the shell and are used for clamping two side faces of the top cover plate to be respectively connected.
Taking fig. 1 as an example, further explaining the installation manner, the housing of the clarification tank is ship-shaped, and mainly comprises a top cover plate and a bottom plate which are arranged on the upper and lower surfaces of the housing, a front side plate and a rear side plate (the front side plate and the rear side plate are in inverted right trapezoid shape) which are arranged on the front and rear surfaces of the drawing on which fig. 1 is arranged, a left side plate and a right side plate (the left side plate is an inclined slope surface forming an obtuse angle with the bottom plate, and the right side plate is vertical to the bottom plate) which are arranged on the left and right sides, an end a (the upper end can be seen in fig. 1) of a first partition plate 2 is fixed on the top cover plate, an end B (the lower end can be seen in fig. 1) of the first partition plate 2 is a free end and extends towards the scraper conveyor 14, but a certain distance exists between the first partition plate 2 and the scraper conveyor 14 (at least the normal operation of the scraper conveyor 14 should not be influenced), and an end C end and an end D (the front end and the rear end can be seen in fig. 1) of the first partition plate 2 are respectively connected with the front side plate and the front side plate, On the rear side plate, after the liquid enters, the space above the liquid level is simply divided into two relatively isolated spaces, namely the space where the first exhaust hole 1 and the tar residue outlet 9 are located is divided into a relatively independent first space 100, and the rest part of the inner cavity of the shell except the first space 100 is a second space 200 (see the space between the first partition plate 2 and the right side plate of the shell in fig. 1).
Specifically, the end a of the first partition plate 2 is hermetically welded with a top cover plate of the housing; the end C and the end D of the first partition plate 2 are opposite to the shell and are clamped with two side faces of the top cover plate in a sealing welding mode respectively.
Specifically, the first partition board 2 may be a rectangular board, including a square board and a rectangular board, and the specific shape and size of the first partition board 2 may correspond to the shape and size of the housing of the clearing tank. At this moment, the first partition board 2 includes three sets of end surfaces that are arranged oppositely, see fig. 1, the upper end surface of the first partition board 2 is welded on the top cover plate in a sealing manner, the front end surface and the rear end surface are welded on the front side plate and the rear side plate of the housing in a sealing manner respectively, the lower end surface of the first partition board 2 is close to the scraper conveyor 14, but does not contact the scraper conveyor 14, and does not affect the operation thereof, the specific installation mode of the first partition board 2 is based on the first space 100 and the second space 200 that can realize the isolation above the liquid level and the communication below, and the specific mode here is only an example.
The specific structure and power transmission arrangement of the scraper conveyor 14 in the clarifying tank, the feed inlet arranged on the shell, the outlet for discharging corresponding materials and the like can all adopt the design of the prior art, the technical effect to be realized by the core innovation point of the invention is not influenced, and the details are not repeated.
As a simple introduction to the auxiliary structure of the present embodiment, referring to fig. 1, the top cover plate of the housing is further provided with another liquid inlet 5 (for inputting other miscellaneous liquids generated inside the workshop, as a general reserved inlet), a manhole 7 for personnel maintenance, and a spare hole 8.
It is a common practice to design chemical equipment to reserve other liquid inlets 5 and spare holes 8.
The right side plate of the shell is provided with a tar outlet 15, an ammonia water outlet 16, an emulsion outlet 18 and a sewage outlet 19 from top to bottom, wherein the tar outlet 15 is connected with a tar conveying pipeline 17 which can extend into a tar surface layer, and tar is pressed into the tar conveying pipeline 17 and then conveyed to the tar outlet 15.
The output of the emulsion outlet 18 is an emulsion formed by mixing tar and ammonia water.
The above-mentioned import that is used for advancing the material or go out the export isotructure of material can set up one or more according to actual need, for example refer to fig. 2, and tar aqueous ammonia mixture inlet 3 can set up to two, and other liquid import 5 set up to two parallels eight, specifically can correspond the setting as required.
Example 2
The optimized design is carried out on the basis of the embodiment 1, a second clapboard 10 opposite to the liquid outlet part of the tar-ammonia water mixture liquid inlet 3 is additionally arranged between the first clapboard 2 and the tar-ammonia water mixture liquid inlet 3, and the second clapboard 10 comprises an E end and an F end which are arranged in a suspended mode in the liquid level layering direction and are opposite to each other.
As a specific mode, the end E of the second partition board 10 is suspended below the top cover board, and the end F is suspended above the scraper conveyor 14;
the second partition board 10 further comprises a G end and an H end which are oppositely arranged, and the G end and the H end are oppositely arranged with the shell and are used for clamping two side faces of the top cover plate to be respectively connected.
The second partition plate 10 can reduce or avoid gas streaming caused by the fact that the tar-ammonia water mixture entering from the tar-ammonia water mixture inlet 3 directly flows towards the first partition plate 2, and further reduce the escape of coal gas from the first exhaust hole 1 or the tar residue outlet 9, so that the gas recycling device is more environment-friendly and has a better coal gas recycling effect.
Optionally, the end G and the end H of the second partition plate 10 are disposed opposite to the housing and are sealed and welded to two side surfaces of the top cover plate.
Taking fig. 1 as an example, further explaining the installation manner of the second partition board 10, the housing of the clarification tank is ship-shaped, and mainly includes a top cover board and a bottom board which are arranged on the upper and lower surfaces, a front side board and a back side board (the front side board and the back side board are in inverted right trapezoid shape) which are arranged on the front and back sides of the drawing of fig. 1, a left side board and a right side board which are arranged on the left and right sides (the left side board is an inclined slope surface forming an obtuse angle with the bottom board, and the right side board is perpendicular to the bottom board), the E end (visible as the upper end in fig. 1) of the second partition board 10 is suspended below the top cover board, the F end (visible as the lower end in fig. 1) of the second partition board 10 is a free end which extends towards the scraper conveyor 14 and is suspended above the scraper conveyor 14, a certain distance exists between the second partition board and the scraper conveyor 14 (at least should not affect the normal operation of the scraper conveyor 14), and the G end and the H end (visible as the front, front end, the rear end, in fig. 1, of the second partition board 10 are arranged oppositely, Rear end faces) are respectively connected to the front side plate and the rear side plate of the shell. The second partition board 10 can block the tar ammonia water mixture entering from the tar ammonia water mixture inlet 3 from flowing towards the first partition board 2.
Specifically, the second partition plate 10 may be a rectangular plate, including a square plate and a rectangular plate, and the specific shape and size of the second partition plate 10 may be designed corresponding to the shape and size of the housing of the clearing sump. At this moment, the second partition board 10 includes three sets of end surfaces that set up relatively, refer to fig. 1, the top end of second partition board 10 is unsettled and locates the below of lamina tecti (preferably is less than the aqueous ammonia liquid level, the aqueous ammonia liquid level is generally apart from lamina tecti 40cm during normal use, also is the highest feed liquor liquid level), preceding, rear end face seal weld respectively on the preceding curb plate of casing, the rear side board, the lower terminal surface of second partition board 10 is close to scraper conveyor 14, but does not touch scraper conveyor 14, the upper and lower side of second partition board 10 is unsettled, do not influence its operation, the specific mounting mode of second partition board 10 is with can blockking and changing the flow direction of the tar aqueous ammonia mixture that gets into from tar aqueous ammonia mixture inlet 3 and is the standard, the specific mode here is only a reference.
Optionally, a pressure gauge and a U-shaped water seal structure are arranged on a top cover plate of the housing corresponding to the second space 200, so as to ensure that the pressure of the sealed second space 200 does not exceed 200 pa.
Example 3
On the basis of the embodiment 2, the liquid inlet 3 of the tar-ammonia water mixture extends into the shell to form a liquid inlet pipe 4, and the liquid inlet pipe 4 is provided with an opening for discharging liquid towards the first partition plate 2;
optionally, the liquid inlet pipe 4 is a pipe with a sealed lower end opening, and the opening is arranged in the circumferential direction of the pipe, so that the entering tar ammonia water mixture is discharged towards the circumferential direction.
Further, a liquid baffle disc 12 opposite to the lower port is arranged at the lower port of the liquid inlet pipe 4.
Optionally, the upper surface equipartition of keeping off liquid dish 12 has protruding structure, so can increase the collision resistance of the tar aqueous ammonia mixture that gets into from tar aqueous ammonia mixture inlet 3, promotes the coal gas release.
The liquid inlet pipe 4, the liquid baffle disc 12 and the second partition plate 10 are matched, so that coal gas in the tar and ammonia water mixture can be fully released, and the coal gas can be recycled from the second exhaust hole 6.
Optionally, the liquid-stopping disk 12 rests on a support member provided in the housing, which is simple in structure and easy to disassemble.
Optionally, the supporting component includes at least two parallel beams 11, and two ends of the beams 11 are opposite to the housing and respectively connected to two side surfaces clamping the top cover plate.
Example 4
On the basis of embodiment 3, it is further optimized that a baffle 13 is arranged on the other side of the liquid baffle disc 12 opposite to the side where the second partition plate 10 is arranged, and the baffle 13 at least comprises a baffle surface opposite to the opening of the liquid inlet pipe 4.
Referring to fig. 1, the second partition plate 10 is disposed on the left side of the liquid inlet pipe 4, the baffle plate 13 is disposed on the right side of the liquid inlet pipe 4, and the baffle plate 13 has a blocking surface opposite to the opening of the liquid inlet pipe 4 to block the tar-ammonia mixture entering from the tar-ammonia mixture inlet 3 from flowing smoothly to the right side, and promote the release of coal gas.
As a way, the baffle 13 is welded to the liquid baffle disc 12.
Above-mentioned baffle 13 can cooperate with feed liquor pipe 4, fender liquid dish 12 and second baffle 10, and the collision is carried out many times to the tar aqueous ammonia mixture that gets into, makes the coal gas of smuggleing secretly in the tar aqueous ammonia mixture fully release, then rises to the second exhaust hole 6 on the lamina tecti that second space 200 corresponds and discharge to enter the coal gas negative pressure system, improve the separation effect of coal gas, and then improve the recycle efficiency of coal gas.
As a mode, baffle 13 is the arc that the centre of a circle is located feed liquor pipe 4 place one side, so set up, the area of hindering of the contact of the tar aqueous ammonia mixture of 3 entering of follow tar aqueous ammonia mixture inlets is big, can further promote the coal gas release.
Example 5
In a modification of any of embodiments 1 to 4, the first vent hole 1 is connected with an RTO tail gas system, and the second vent hole 6 is connected with a coal gas negative pressure system.
Optionally, the first exhaust hole 1 is connected with an absorption tower, the absorption tower is connected with a water washing device, and an air outlet of the water washing device is connected with an RTO tail gas system through a pressurizing fan.
In addition, a method for separating the mixed gas in the tar-ammonia water mixture is provided, wherein the method comprises the steps of separating tar, ammonia water and tar residues by adopting the mechanical tar-ammonia water clarifying tank, and simultaneously separating the gases respectively discharged from the first space 100 and the second space 200 and respectively carrying out corresponding post-treatment processes.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Various combinations of the presently disclosed preferred features of the invention, as well as variations or modifications thereof, will be apparent to persons skilled in the art upon reference to the description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. The mechanized tar ammonia water clarifying tank comprises a shell provided with a tar ammonia water mixture liquid inlet, a tar residue discharge port, an ammonia water outlet and a tar outlet, and a scraper conveyor with a discharge end connected with the tar residue discharge port is arranged in the shell;
the shell that the first space corresponds is equipped with first exhaust hole, be equipped with the second exhaust hole on the shell that the second space corresponds, first space and second space are sealed isolation, intercommunication below the liquid level in liquid level top.
2. The mechanized tar ammonia water clarifier of claim 1, wherein the first space and the second space are sealed and isolated above the liquid level of the tar layer and are communicated below the liquid level of the tar layer;
optionally, the first exhaust hole is connected with an RTO tail gas system, and the second exhaust hole is connected with a coal gas negative pressure system;
optionally, the first exhaust hole is connected with an absorption tower, the absorption tower is connected with a water washing device, and an air outlet of the water washing device is connected with an RTO tail gas system through a pressurizing fan;
optionally, a pressure gauge and a U-shaped water seal structure are arranged on the top cover plate of the housing corresponding to the second space.
3. The mechanized tar ammonia water clarifier of claim 1 or 2,
the end A of the first partition plate is arranged on the top cover plate of the shell, and the end B opposite to the end A extends towards the scraper conveyor and is suspended above the scraper conveyor;
the first partition plate further comprises a C end and a D end which are oppositely arranged, and the C end and the D end are oppositely arranged on the shell and clamp two side faces of the top cover plate to be respectively connected.
4. The mechanized tar ammonia water clarifier of claim 3, wherein the end A of the first partition plate is hermetically welded to a top cover plate of the housing;
the end C and the end D of the first partition plate are opposite to the shell and clamp two side faces of the top cover plate to be respectively welded in a sealing mode.
5. The mechanized tar ammonia water clarifying tank of claim 1, wherein a second partition plate opposite to the liquid outlet portion of the tar ammonia water mixture liquid inlet is disposed between the first partition plate and the tar ammonia water mixture liquid inlet, and the second partition plate includes an opposite end E and an opposite end F which are suspended in the liquid level layering direction.
6. The mechanized tar ammonia water clarifier of claim 5, wherein the end E of the second partition is suspended below the top cover plate, and the end F is suspended above the scraper conveyor;
the second partition plate further comprises a G end and an H end which are oppositely arranged, and the G end and the H end are oppositely arranged with the shell and are respectively connected with two side faces clamping the top cover plate;
optionally, the end G and the end H of the second partition plate are opposite to the housing and are sealed and welded to two side surfaces clamping the top cover plate respectively.
7. The mechanized tar ammonia water clarifier of claim 1, wherein the tar ammonia water mixture inlet extends into the housing and is provided with an inlet pipe, and the inlet pipe is provided with an opening for discharging liquid towards the first partition plate;
optionally, the liquid inlet pipe is a pipe with a lower end opening sealed, and the opening is formed in the circumferential direction of the pipe.
8. The mechanized tar ammonia water clarifier of claim 7, wherein the lower port of the liquid inlet pipe is provided with a liquid baffle disc opposite to the lower port;
optionally, the liquid-stop pan rests on a support member provided within the housing;
optionally, the supporting component includes at least two parallel beams, and two ends of the beam are opposite to the housing and respectively connected to two side surfaces of the top cover plate.
9. The mechanized tar ammonia water clarifier of claim 8, wherein a baffle is disposed on the other side of the liquid baffle disc opposite to the side on which the first partition plate is disposed, and the baffle at least comprises a baffle surface opposite to the opening of the liquid inlet pipe;
optionally, the baffle is welded on the liquid baffle disc;
optionally, the baffle is an arc-shaped plate with a circle center located on the side of the liquid inlet pipe.
10. A method for separating the mixed gas in the tar-ammonia water mixture, wherein the tar-ammonia water mixture comprises tar, ammonia water, tar slag and mixed gas, and is characterized in that the method comprises the steps of separating the tar, the ammonia water and the tar slag by using the mechanized tar-ammonia water clarifying tank as claimed in any one of claims 1 to 9, and simultaneously separating the gas discharged from the first space and the second space and respectively carrying out post-treatment procedures.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110646898.XA CN113304513A (en) | 2021-06-10 | 2021-06-10 | Mechanized tar ammonia water clarifying tank and separation method of tar ammonia water mixture entrained miscellaneous gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110646898.XA CN113304513A (en) | 2021-06-10 | 2021-06-10 | Mechanized tar ammonia water clarifying tank and separation method of tar ammonia water mixture entrained miscellaneous gas |
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| US4110168A (en) * | 1976-01-22 | 1978-08-29 | Houilleres Du Bassin De Lorraine | Process for the separation of tarry dusts from coke oven gas |
| CN204182164U (en) * | 2014-10-17 | 2015-03-04 | 江苏佳联华机械制造有限公司 | A kind of mud gas fractionation unit |
| CN104548681A (en) * | 2014-12-05 | 2015-04-29 | 山东钢铁股份有限公司 | Mechanical tar and ammonia water clarification tank with ammonia gas closed recycling device |
| CN107998697A (en) * | 2018-01-24 | 2018-05-08 | 成都纽扣互动科技有限公司 | A kind of rectangular sedimentation tank for being used to handle graphite high-temperature tail gas condensate liquid |
| CN211987235U (en) * | 2020-03-20 | 2020-11-24 | 陕西陕焦化工有限公司 | Mechanized ammonia water clarifying tank |
| CN212594141U (en) * | 2019-12-20 | 2021-02-26 | 宣化钢铁集团有限责任公司 | Device for separating mixed liquid of coke oven gas and tar ammonia water |
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2021
- 2021-06-10 CN CN202110646898.XA patent/CN113304513A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4110168A (en) * | 1976-01-22 | 1978-08-29 | Houilleres Du Bassin De Lorraine | Process for the separation of tarry dusts from coke oven gas |
| CN204182164U (en) * | 2014-10-17 | 2015-03-04 | 江苏佳联华机械制造有限公司 | A kind of mud gas fractionation unit |
| CN104548681A (en) * | 2014-12-05 | 2015-04-29 | 山东钢铁股份有限公司 | Mechanical tar and ammonia water clarification tank with ammonia gas closed recycling device |
| CN107998697A (en) * | 2018-01-24 | 2018-05-08 | 成都纽扣互动科技有限公司 | A kind of rectangular sedimentation tank for being used to handle graphite high-temperature tail gas condensate liquid |
| CN212594141U (en) * | 2019-12-20 | 2021-02-26 | 宣化钢铁集团有限责任公司 | Device for separating mixed liquid of coke oven gas and tar ammonia water |
| CN211987235U (en) * | 2020-03-20 | 2020-11-24 | 陕西陕焦化工有限公司 | Mechanized ammonia water clarifying tank |
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