CN215654396U - Desulfurizing tower for coke oven gas - Google Patents

Abstract

The utility model discloses a desulfurizing tower for coke oven gas, which comprises an outer shell, wherein a hose is arranged on the inner wall of the middle part of the outer shell, the hose is spirally arranged on the inner wall of the outer shell, and a plurality of first nozzles are arranged on the outer wall of the hose at equal intervals; the utility model has the advantages of simple design structure and convenient use, changes the traditional top-down spraying mode into a horizontal spraying mode, increases the space of a contact area of flue gas and water mist in a desulfurizing tower, prolongs the contact time of the water mist and the flue gas, is beneficial to full contact of the flue gas and the water mist to achieve the desulfurizing effect, and improves the flue gas purification effect.

Description

Desulfurizing tower for coke oven gas

Technical Field

The utility model belongs to the technical field of flue gas purification equipment, and particularly relates to a desulfurizing tower for coke oven gas.

Background

A coke oven is a furnace generally built of refractory bricks and refractory blocks for carbonizing coal to produce coke, is a furnace for making coke from coal, and is the main thermal equipment for coking. The modern coke oven is a horizontal chamber type coke oven which mainly aims at producing metallurgical coke and can recover coking chemical products, and comprises an oven body and accessory equipment. In order to prevent the harmful gases from being discharged into the atmosphere, the flue gas generated in the coking process needs to be treated, and the types of equipment for treating the flue gas are various, and a desulfurizing tower is generally adopted in the prior art for treating the flue gas.

The desulfurization tower is a tower type device for desulfurization treatment of industrial waste gas, is most widely applied by building granite at first, and utilizes a water film desulfurization and dust removal principle, namely a granite water film desulfurization dust remover or a granite water film desulfurization dust remover. At present, the mode that most desulfurizing towers adopted to spray carries out the processing of flue gas, however, the inside spraying of desulfurizing tower among the prior art is mostly for from the top down, or from the spray mode from bottom to top, and the number of spraying layers is two-layer at most, and this just leads to the contact area of flue gas and water smoke to diminish, and the time of contact can not reach the demand of desulfurization, leads to still containing harmful gas in the partial exhaust flue gas, is difficult to satisfy environmental protection's requirement.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the desulfurizing tower for the coke oven gas, which has simple and reasonable structural design and convenient use, changes the traditional top-down spraying mode into the horizontal spraying mode, increases the space of the contact area of the flue gas and the water mist in the desulfurizing tower, prolongs the contact time of the water mist and the flue gas, is favorable for the full contact of the flue gas and the water mist to achieve the desulfurizing effect, and improves the flue gas purifying effect.

The technical scheme adopted by the utility model is as follows: a desulfurizing tower for coke oven gas comprises an outer shell, wherein a hose is arranged on the inner wall of the middle of the outer shell, the hose is spirally arranged on the inner wall of the outer shell, and a plurality of first nozzles are arranged on the outer wall of the hose at equal intervals; the middle upper position fixedly connected with mounting bracket of shell body, the middle part of mounting bracket is equipped with the center tube, and the central line of center tube and the central line of shell body coincide each other, install a plurality of nozzles two in the outer wall department of central line.

The liquid reserve tank is installed to the inside below position of shell body, advances the tobacco pipe and passes the shell body lateral wall and the tip extends to the inside position of liquid reserve tank, installs the guide plate on the shell body inner wall of liquid reserve tank top, and the guide plate cross-section is the tilting structure, and the lower extreme of guide plate is located the inside position of liquid reserve tank box lateral wall.

And the smoke inlet pipe is provided with a smoke inlet fan.

And a liquid supplementing pipe is arranged in the liquid storage tank.

The outside of shell body is provided with the pump body, and the one end of the pump body is connected with the liquid suction pipe, and the liquid suction pipe tip extends to liquid reserve tank internal portion position, and the other one end of the pump body is connected with drain pipe one and drain pipe two respectively, and drain pipe one is linked together with the hose, and drain pipe two is linked together with the center tube.

The utility model discloses a filter tank, including shell body, liquid reserve tank, thick liquid filter equipment, a plurality of water holes of crossing have been seted up to the bottom of filter tank, and the inside from the bottom up of filter tank is equipped with red porcelain stone filter layer and clean shot filter layer in proper order, and the density of red porcelain stone filter layer is greater than the density of clean shot filter layer.

And a demister is arranged in the inner position of the outer shell above the mounting frame.

The top of the outer shell is a smoke outlet, the position of the side wall of the top of the outer shell is connected with a detection pipeline, and a detection valve is installed on the detection pipeline.

The desulfurizing tower for coke oven gas is used, the flue gas led out from a coke oven is led into the outer shell through the smoke inlet pipe, firstly contacts with the liquid in the liquid storage tank for one time, the flue gas is preliminarily absorbed by the liquid in the liquid storage tank and then rises to pass through the slurry filtering device, at the moment, the pump body pumps the liquid out of the liquid pumping pipe, the liquid is led into the hose through the first liquid outlet pipe, the liquid is led into the central pipe through the second liquid outlet pipe and finally sprayed out from the first nozzle and the second nozzle, and the hose is spirally distributed in the outer shell, so that compared with the traditional layered spraying structure, the desulfurizing tower has larger spraying space, enough contact time can be provided between the sprayed water mist and the flue gas, the harmful gas in the flue gas is discharged out of the desulfurizing tower after being completely absorbed and demisted by the demister, the purification quality of the flue gas can be improved, and the requirement of environmental protection can be met, in addition, in order to further guarantee that the flue gas of discharge to the atmosphere accords with the standard, adopt the detection pipeline can regularly collect the flue gas after purifying, can be convenient for detect harmful gas such as smoke and dust, sulfur dioxide in the flue gas, when the deviation appears in the testing result, can change the thick liquid in the liquid reserve tank, until satisfying the needs that discharge.

A hose is installed on the middle inner wall of the outer shell, the hose is spirally arranged on the inner wall of the outer shell, and a plurality of first nozzles are installed on the outer wall of the hose at equal intervals; the purpose of this is: the hose is spirally arranged on the inner wall of the outer shell, so that the space of the spraying area in the desulfurizing tower can be increased, the retention time of the flue gas in the spraying area is prolonged, the flue gas is fully contacted with the water mist, and the aim of thoroughly absorbing harmful gas is fulfilled.

A mounting frame is fixedly connected to the upper position of the middle of the outer shell, a central pipe is arranged in the middle of the mounting frame, the central line of the central pipe and the central line of the outer shell are overlapped, and a plurality of second nozzles are mounted on the outer wall of the central line; the purpose of this is: usable center tube and second improvement water smoke of nozzle are spraying the concentration of in-process, combine that the nozzle one can be further to absorb the flue gas to the center tube adopts vertical setting, can reduce the inside occupation space of desulfurizing tower, satisfies the needs of desulfurization.

The utility model has the beneficial effects that:

the horizontal spraying type flue gas desulfurization tower is simple in design structure and convenient and fast to use, a traditional top-down spraying mode is changed into a horizontal spraying mode, the space of a contact area of flue gas and water mist in the desulfurization tower is enlarged, the contact time of the water mist and the flue gas is prolonged, the flue gas and the water mist can be fully contacted, the desulfurization effect is achieved, and the flue gas purification effect is improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

The labels in the figure are: 1. an outer housing; 2. a smoke inlet pipe; 3. a smoke inlet fan; 4. a baffle; 5. a liquid storage tank; 6. a liquid supplementing pipe; 7. a liquid pumping pipe; 8. a pump body; 9. a second liquid outlet pipe; 10. a first liquid outlet pipe; 11. a mounting frame; 12. a demister; 13. detecting a pipeline; 14. detecting a valve; 15. a smoke outlet; 16. a second nozzle; 17. a central tube; 18. a first nozzle; 19. a hose; 20. a hollow sphere filter layer; 21. a purple sand stone filter layer; 22. a filter tank; 23. and a water through hole.

Detailed Description

The following detailed description of embodiments of the utility model is provided in connection with the accompanying drawings.

As shown in the figure, the desulfurizing tower for the coke oven gas comprises an outer shell 1, wherein a hose 19 is installed at the middle inner wall position of the outer shell 1, the hose 19 is spirally arranged at the inner wall position of the outer shell 1, and a plurality of first nozzles 18 are installed at the outer wall position of the hose 19 at equal intervals; the middle upper position of outer casing 1 fixedly connected with mounting bracket 11, the middle part of mounting bracket 11 is equipped with center tube 17, and the central line of center tube 17 and the central line of outer casing 1 coincide each other, installs a plurality of second nozzles 16 in the outer wall department of central line.

A liquid storage tank 5 is arranged at the lower position inside the outer shell 1, the smoke inlet pipe 2 penetrates through the side wall of the outer shell 1, the end part of the smoke inlet pipe extends to the inner position of the liquid storage tank 5, a guide plate 4 is arranged on the inner wall of the outer shell 1 above the liquid storage tank 5, the section of the guide plate 4 is of an inclined structure, and the lower end of the guide plate 4 is positioned at the inner position of the side wall of the tank body of the liquid storage tank 5; liquid reserve tank 5 is used for saving the thick liquid to make thick liquid recycle, the purpose of installation guide plate 4 is when avoiding the thick liquid to be downflow, gets into between shell body 1 and the 5 gaps of liquid reserve tank, plays the effect of water conservancy diversion.

The smoke inlet fan 3 is arranged on the smoke inlet pipe 2, and the smoke inlet fan 3 is used for increasing the circulation speed of smoke so as to overcome the pressure at the pipe orifice of the smoke inlet pipe 2.

Install fluid infusion pipe 6 in the liquid reserve tank 5 for under the too little condition of thick liquid volume, timely carry out the fluid infusion.

The outside of shell body 1 is provided with the pump body 8, and the one end of the pump body 8 is connected with liquid suction pipe 7, and liquid suction pipe 7 tip extends to 5 internal positions in liquid reserve tank, and the other one end of the pump body 8 is connected with drain pipe one 10 and drain pipe two 9 respectively, and drain pipe one 10 is linked together with hose 19, and drain pipe two 9 is linked together with center tube 17 for make the thick liquid spout from nozzle one 18 and nozzle two 16 respectively, realize the effect that sprays.

5 top positions of liquid reserve tank are provided with thick liquid filter equipment, thick liquid filter equipment includes fixed mounting at the inside filter-tank 22 of shell body 1, a plurality of water holes 23 of crossing have been seted up to the bottom of filter-tank 22, the inside from down of filter-tank 22 is equipped with red porcelain stone filter layer 21 and clean ball filter layer 20 in proper order, the density of red porcelain stone filter layer 21 is greater than the density of clean ball filter layer 20, after flue gas and water smoke contact, surplus thick liquid can fall to thick liquid filter equipment department and filter, pass through clean ball filter layer 20 in proper order, red porcelain stone filter layer 21 filters, finally flow to liquid reserve tank 5 in from water hole 23, filter the thick liquid, be convenient for repeated reuse.

A demister 12 is installed in the inner position of the outer shell 1 above the mounting frame 11 and used for demisting the treated flue gas.

The top of shell body 1 is outlet 15, and 1 top lateral wall position of shell body is connected with a detection pipeline 13, installs detection valve 14 on the detection pipeline 13, and staff's accessible detection pipeline 13 collects the flue gas, detects to whether the flue gas of judgement income atmosphere satisfies the standard.

When the desulfurizing tower for coke oven gas is used, flue gas led out from a coke oven is led into an outer shell 1 through a smoke inlet pipe 2, firstly contacts with liquid in a liquid storage tank 5 for one time, the flue gas is preliminarily absorbed by the liquid in the liquid storage tank 5 and then rises to pass through a slurry filtering device, at the moment, after the liquid is pumped out from a liquid pumping pipe 7 by a pump body 8, the liquid is led into a hose 19 through a first liquid outlet pipe 10, the liquid is led into a central pipe 17 through a second liquid outlet pipe 9 and finally is sprayed out from a first nozzle 18 and a second nozzle 16, because the hose 19 is spirally distributed in the outer shell 1, compared with the traditional layered spraying structure, the desulfurizing tower has larger spraying space, the sprayed water mist has enough contact time with the flue gas, the harmful gas in the flue gas is completely absorbed and then is demisted by a demister 12 and then is discharged out of the desulfurizing tower, can improve the purification quality of flue gas, reach environmental protection's requirement, in addition, in order to further guarantee that the flue gas in the atmosphere of discharging accords with the standard, adopt detection pipeline 13 can regularly collect the flue gas after purifying, can be convenient for detect harmful gas such as smoke and dust, sulfur dioxide in the flue gas, when the deviation appears in the testing result, can change the thick liquid in the liquid reserve tank 5, until satisfying the needs that discharge.

Claims (8)

1. A desulfurizing tower for coke oven gas is characterized in that: the device comprises an outer shell, wherein a hose is arranged on the inner wall of the middle of the outer shell, the hose is spirally arranged on the inner wall of the outer shell, and a plurality of first nozzles are arranged on the outer wall of the hose at equal intervals; the middle upper position fixedly connected with mounting bracket of shell body, the middle part of mounting bracket is equipped with the center tube, and the central line of center tube and the central line of shell body coincide each other, install a plurality of nozzles two in the outer wall department of central line.

2. The desulfurizing tower for coke oven gas of claim 1, wherein: the liquid reserve tank is installed to the inside below position of shell body, advances the tobacco pipe and passes the shell body lateral wall and the tip extends to the inside position of liquid reserve tank, installs the guide plate on the shell body inner wall of liquid reserve tank top, and the guide plate cross-section is the tilting structure, and the lower extreme of guide plate is located the inside position of liquid reserve tank box lateral wall.

3. The desulfurizing tower for coke oven gas of claim 2, wherein: the smoke inlet pipe is provided with a smoke inlet fan.

4. The desulfurizing tower for coke oven gas of claim 2, wherein: a liquid replenishing pipe is arranged in the liquid storage tank.

5. The desulfurizing tower for coke oven gas of claim 1, wherein: the outside of shell body is provided with the pump body, and the one end of the pump body is connected with the liquid suction pipe, and the liquid suction pipe tip extends to liquid reserve tank internal portion position, and the other one end of the pump body is connected with drain pipe one and drain pipe two respectively, and drain pipe one is linked together with the hose, and drain pipe two is linked together with the center tube.

6. The desulfurizing tower for coke oven gas of claim 2, wherein: the liquid reserve tank top position is provided with thick liquid filter equipment, and thick liquid filter equipment includes the inside filter-tank of fixed mounting at the shell body, and a plurality of water holes of crossing have been seted up to the bottom of filter-tank, and the inside from down of filter-tank is equipped with red porcelain stone filter layer and clean shot filter layer in proper order, and the density of red porcelain stone filter layer is greater than the density of clean shot filter layer.

7. The desulfurizing tower for coke oven gas of claim 1, wherein: the shell body internal position of mounting bracket top installs the defroster.

8. The desulfurizing tower for coke oven gas of claim 1, wherein: the shell body top is the outlet flue, and shell body top lateral wall position is connected with a detection pipeline, installs the detection valve on the detection pipeline.

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