CN214244326U - Coal tar classification recovery system - Google Patents
Coal tar classification recovery system Download PDFInfo
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- CN214244326U CN214244326U CN202023164931.5U CN202023164931U CN214244326U CN 214244326 U CN214244326 U CN 214244326U CN 202023164931 U CN202023164931 U CN 202023164931U CN 214244326 U CN214244326 U CN 214244326U
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Abstract
The utility model discloses a categorised recovery system of coal tar, including gas collecting device, wen shu, electric tar precipitator, impurity separation device, first tar collecting pit and second tar collecting pit. On the basis of not changing the traditional coal gas circulation line, the utility model adds the impurity separation device and the second tar collecting tank only by changing the coal tar collecting line, thereby effectively reducing the slag-containing water content of the recovered coal tar and leading the recovered light tar to be directly separated; and because the utility model discloses maintain traditional coal gas circulation circuit, to ordinary coal enterprise convenient to popularize and implement more, had very big practical meaning.
Description
The technical field is as follows:
the utility model relates to a coal chemical industry technical field, in particular to categorised recovery system of coal tar.
Background art:
coal pyrolysis produces coal gas containing coal tar, the coal tar is used as a main high value-added product of the coal pyrolysis technology, and the yield and the quality of the coal tar are important factors influencing the economy of the coal pyrolysis technology. At present, the common coal tar recovery mode is mainly that coal gas produced in a carbonization furnace is sequentially introduced into a gas collecting device, a Venturi tower and an electric tar precipitator, coal tar in the coal gas is gradually separated by utilizing the effects of cooling and high-voltage electric fields, and then the coal tar recovered by each device is converged into an ammonia water pool to form mixed tar comprising heavy tar and light tar, so that the purpose of separating the coal tar from the coal gas is achieved.
However, the following problems are present in the recovery process: the gas collection device and the Venturi tower are both sprayed with ammonia water to wash the coal gas for cooling, so that the finally collected mixed tar has high water content, the density of the light tar captured by the electric tar catcher is close to that of water (ammonia water), the light tar is difficult to separate, the light tar cannot be directly separated from the mixed tar, and the economic value of the recovered coal tar is greatly reduced; meanwhile, as the coal gas is accompanied by a large amount of solid impurities such as coal dust and the like when entering the gas collecting device, the coal tar collected by the gas collecting device can be provided with tar residues formed by the impurities, and the quality of the recovered coal tar can be further reduced after the mixed tar is mixed. When the mixed tar containing water and large amount of impurities is subsequently treated, the deep processing difficulty is large, the treatment cost is high, and the waste of coal tar resources is easily caused.
In order to solve the problem of coal tar recovery, in the prior art, a coal gas conveying line is mostly designed again, different tar acquisition devices are used for directly classifying and recovering coal tar on the coal gas conveying line, however, the coal gas conveying line needs to be rearranged in the solution, time and labor are wasted, certain requirements are required on equipment, sites, cost and the like, and the method cannot be well adapted to most coal enterprises.
The utility model has the following contents:
an object of the utility model is to provide a categorised recovery system of coal tar can solve the recovery coal tar moisture content that coal tar recovery system faces on the basis that does not change traditional coal gas circulation route high, contain the big and unable problem such as light tar of separating out of impurity content.
The utility model discloses by following technical scheme implement: a coal tar classification recovery system comprises a gas collecting device, a Venturi tower, an electric tar precipitator, an impurity separating device, a first tar collecting tank and a second tar collecting tank;
the gas inlet of the gas collecting device is communicated with the gas outlet of the carbonization furnace, the gas outlet of the gas collecting device is communicated with the gas inlet of the Venturi tower, and the gas outlet of the Venturi tower is communicated with the gas inlet of the electrical tar precipitator;
the oil outlet of the gas collection device is communicated with the oil inlet of the impurity separation device, the oil outlet of the impurity separation device and the oil outlet of the Venturi tower are both communicated with the oil inlet of the first tar collecting tank, and the oil outlet of the electric tar precipitator is communicated with the oil inlet of the second tar collecting tank.
Further, the gas collecting device comprises an ascending pipe, a bridge pipe and a gas collecting bin, wherein a gas inlet of the ascending pipe is communicated with a gas outlet of the carbonization furnace, a gas outlet of the ascending pipe is communicated with a gas inlet of the bridge pipe, a gas outlet of the bridge pipe is communicated with a gas inlet of the gas collecting bin, and a gas outlet of the gas collecting bin is communicated with a gas inlet of the venturi tower;
and the oil outlet of the gas collecting bin is communicated with the oil inlet of the impurity separating device.
Further, the impurity separation device is a filter press.
The utility model has the advantages that:
the utility model provides a pair of categorised recovery system of coal tar includes gas collecting device, wen shu, electric tar precipitator, impurity separation device, first tar collecting pit and second tar collecting pit. On the basis that does not change original coal gas circulation circuit, the utility model discloses only collect the circuit through changing the coal tar, add impurity separation device and second tar collecting pit, can realize the purpose that the coal tar oil classification was retrieved:
1: the heavy tar with tar residues collected in the gas collection device is separated into tar residues by an impurity separation device and then discharged into a first tar collection tank together with the heavy tar collected by the Venturi tower, the first tar collection tank is only the heavy tar with higher water content, and the heavy tar can be separated out after simple standing and layering; the impurity separation device arranged on the tar collecting line of the gas collecting device can reduce the impurity amount in the recovered heavy tar, ensure the quality of tar products, separate the impurities before the heavy tar is collected together with the Venturi tower, and also effectively reduce the waste amount of the tar when the impurities are removed after the heavy tar is collected at the later stage;
2: the light tar and the heavy tar collected in the electrical tar precipitator are discharged into a second tar collecting tank, the line is not converged with a coal tar collecting line with high water content, so that the water content is greatly reduced, the mixed coal tar can be directly separated out to reach the selling standard after standing and layering in the second tar collecting tank, the subsequent complicated and expensive treatment procedures are avoided, and the economic value of the recovered coal tar is greatly improved;
in general, the coal tar classification and recovery system provided by the utility model has simple structure and convenient manufacture, and can effectively reduce the moisture content of the slag of the recovered coal tar, so that the recovered light tar can be directly separated; simultaneously the utility model discloses maintain traditional coal gas circulation circuit, only changed the coal tar and collected the circuit, to ordinary coal enterprise be convenient for more promote and use.
Description of the drawings:
FIG. 1 is a schematic structural diagram of a conventional coal tar recovery system.
Fig. 2 is the utility model discloses a categorised recovery system of coal tar structural schematic.
The parts in the drawings are numbered as follows:
the device comprises a gas collecting device 10, a rising pipe 11, a bridge pipe 12, a gas collecting bin 13, a Venturi tower 20, an electric tar precipitator 30, an impurity separating device 40, a first tar collecting tank 50, a second tar collecting tank 60, a carbonization furnace 70, an ammonia water spraying device 80 and an ammonia water tank 90.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 (in the figure, the solid arrow indicates a coal gas flowing direction, and the dotted arrow indicates a coal tar flowing direction), the currently common coal tar recovery method mainly comprises the steps of sequentially introducing coal gas produced in a carbonization furnace 70 into a gas collection device 10, a venturi tower 20 and an electric tar precipitator 30, and then collecting the coal tar recovered by each device into an ammonia water tank 90.
The first embodiment is as follows:
as shown in fig. 2 (in the figure, the solid arrow indicates a coal gas flowing direction, and the dashed arrow indicates a coal tar flowing direction), the present embodiment provides a coal tar classification and recovery system, which includes a gas collecting device 10, a venturi tower 20, an electrical tar precipitator 30, an impurity separating device 40, a first tar collecting tank 50, and a second tar collecting tank 60;
the air inlet of the air collecting device 10 is communicated with the air outlet of the carbonization furnace 70, the air outlet of the air collecting device 10 is communicated with the air inlet of the Venturi tower 20, and the air outlet of the Venturi tower 20 is communicated with the air inlet of the electrical tar precipitator 30;
the oil outlet of the gas collecting device 10 is communicated with the oil inlet of the impurity separating device 40, the oil outlet of the impurity separating device 40 and the oil outlet of the Venturi tower 20 are both communicated with the oil inlet of the first tar collecting tank 50, and the oil outlet of the electric tar precipitator 30 is communicated with the oil inlet of the second tar collecting tank 60.
It should be noted that the gas collection device 10 is a device that collects coal gas containing coal tar from the top of the carbonization furnace 70, and ammonia water spraying is performed on high-temperature coal gas in the gas collection device 10; the Venturi tower 20 is also a 'washing' cooling device, and an ammonia water spraying device 80 is arranged at the top of the Venturi tower; the electrical tar precipitator 30 separates tar and gas by the action of a high-voltage direct-current electric field, the three tar collecting devices are all common equipment, and a gas circulation line formed by the three tar collecting devices is also a commonly used line, and is not described herein again.
On the basis that traditional coal gas circulation circuit is not changed, the embodiment only collects the circuit through changing the coal tar, adds impurity separation device 40 and second tar collecting tank 60, can realize the purpose that the coal tar oil classification was retrieved:
1: the heavy tar with tar residues collected in the gas collecting device 10 is separated into tar residues by the impurity separating device 40, and then is discharged into the first tar collecting tank 50 together with the heavy tar collected by the Venturi tower 20, the first tar collecting tank 50 only contains the heavy tar with higher water content, and the heavy tar can be separated out after simple standing and layering; the impurity separation device 40 arranged on the tar collecting line of the gas collecting device 10 can not only reduce the impurity amount in the recovered heavy tar and ensure the quality of tar products, but also separate the impurities before the heavy tar and the heavy tar collected by the Venturi tower 20 are converged together, and can also effectively reduce the waste amount of the tar when the impurities are removed after the heavy tar and the Venturi tower are converged at the later stage;
2: the light tar and the heavy tar collected in the electric tar precipitator 30 are discharged into the second tar collecting tank 60, the line is not converged with the coal tar collecting line with high water content, so that the water content is greatly reduced, the mixed coal tar can be directly separated out to reach the selling standard after standing and layering in the second tar collecting tank 60, the subsequent complicated and expensive treatment procedures are avoided, and the economic value of the recovered coal tar is greatly improved.
As an example, the gas collecting device 10 includes a rising pipe 11, a bridge pipe 12, and a gas collecting bin 13, wherein a gas inlet of the rising pipe 11 is communicated with a gas outlet of the carbonization furnace 70, a gas outlet of the rising pipe 11 is communicated with a gas inlet of the bridge pipe 12, a gas outlet of the bridge pipe 12 is communicated with a gas inlet of the gas collecting bin 13, and a gas outlet of the gas collecting bin 13 is communicated with a gas inlet of the venturi tower 20;
an oil outlet of the gas collecting bin 13 is communicated with an oil inlet of the impurity separating device 40.
It should be noted that the ammonia water spraying device 80 in the gas collecting device 10 of the present embodiment is disposed on the top of the bridge pipe 12.
As an example, the impurity separating device 40 is a filter press.
The coal tar classification and recovery system provided by the embodiment is simple in structure and convenient to manufacture, and can effectively reduce the moisture content of the slag of the recovered coal tar, so that the recovered light tar can be directly separated; meanwhile, the traditional coal gas circulation line is maintained, only the coal tar collecting line is changed, and the coal gas collection device is more convenient to popularize and apply to common coal enterprises and has great practical significance.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A coal tar classification recovery system is characterized by comprising a gas collection device, a Venturi tower, an electric tar precipitator, an impurity separation device, a first tar collection tank and a second tar collection tank;
the gas inlet of the gas collecting device is communicated with the gas outlet of the carbonization furnace, the gas outlet of the gas collecting device is communicated with the gas inlet of the Venturi tower, and the gas outlet of the Venturi tower is communicated with the gas inlet of the electrical tar precipitator;
the oil outlet of the gas collection device is communicated with the oil inlet of the impurity separation device, the oil outlet of the impurity separation device and the oil outlet of the Venturi tower are both communicated with the oil inlet of the first tar collecting tank, and the oil outlet of the electric tar precipitator is communicated with the oil inlet of the second tar collecting tank.
2. The coal tar classification and recovery system according to claim 1, wherein the gas collection device comprises a riser, a bridge pipe and a gas collection bin, wherein a gas inlet of the riser is communicated with a gas outlet of the carbonization furnace, a gas outlet of the riser is communicated with a gas inlet of the bridge pipe, a gas outlet of the bridge pipe is communicated with a gas inlet of the gas collection bin, and a gas outlet of the gas collection bin is communicated with a gas inlet of the venturi tower;
and the oil outlet of the gas collecting bin is communicated with the oil inlet of the impurity separating device.
3. The coal tar classification and recovery system according to claim 1, wherein the impurity separation device is a filter press.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023164931.5U CN214244326U (en) | 2020-12-24 | 2020-12-24 | Coal tar classification recovery system |
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| CN202023164931.5U CN214244326U (en) | 2020-12-24 | 2020-12-24 | Coal tar classification recovery system |
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| CN214244326U true CN214244326U (en) | 2021-09-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114317038A (en) * | 2021-12-29 | 2022-04-12 | 山东宝塔新能源有限公司 | Coal tar recovery and collection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114317038A (en) * | 2021-12-29 | 2022-04-12 | 山东宝塔新能源有限公司 | Coal tar recovery and collection device |
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