A novel coke oven gas scrubbing cooler

Abstract

This invention provides a novel coke oven gas scrubbing cooler, belonging to the field of scrubbing and cooling technology. It includes an upper shell, on which an inlet pipe is fixedly connected. A cooling shell is fixedly connected to the outer periphery of the inlet pipe. Cooling water inlet and outlet pipes are fixedly connected to the left and right sidewalls of the top of the cooling shell, respectively. The outer ends of the cooling water inlet and outlet pipes penetrate the sidewalls of the upper shell and extend to the outside. Two baffles are symmetrically and fixedly connected inside the cooling shell. This invention, through the arrangement of the inlet pipe, cooling shell, cooling water inlet and outlet pipes, baffles, gas outlet, and flow-slowing mechanism, effectively slows down the flow velocity of the gas, allowing sufficient time for heat exchange between the gas and the cooling shell within the inlet pipe, thus improving cooling efficiency and effectiveness. This solves the problem of low cooling efficiency caused by high gas flow rates in existing technologies.

Description

Technical Field

[0001] This utility model relates to the field of washing and cooling technology, and more specifically, to a novel coke oven gas washing and cooling device. Background Technology

[0002] Coke oven gas is not only an important energy source, used as fuel for power generation and industrial boilers, but also as a chemical raw material for the production of synthetic ammonia, methanol, and other chemicals, demonstrating its wide application value in the energy and chemical industries. However, coke oven gas fresh from the coke oven is at a high temperature and contains a large amount of dust, tar, and other impurities. Direct utilization of this gas would damage downstream equipment due to its high temperature, shortening its lifespan. Furthermore, the presence of impurities would not only affect combustion efficiency but could also lead to equipment blockages and corrosion, reducing equipment reliability and safety. Therefore, coke oven gas requires washing and cooling before utilization to lower its temperature and remove impurities.

[0003] Traditional coke oven gas scrubbing coolers are not very effective at cooling coke oven gas. The high flow rate of coke oven gas into the inlet pipe leads to low cooling efficiency. In addition, the current technology only performs one scrubbing of coke oven gas, resulting in incomplete scrubbing and poor scrubbing effect.

[0004] Therefore, we have made improvements and proposed a new type of coke oven gas scrubbing cooler. Utility Model Content

[0005] The purpose of this invention is to address the problem of poor cooling and washing effects in existing washing coolers.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] A new type of coke oven gas scrubbing cooler is proposed to improve the above-mentioned problems.

[0008] The present invention is as follows:

[0009] The device includes an upper housing, on which an air inlet pipe is fixedly connected. A cooling shell is fixedly connected to the outer peripheral sidewall of the air inlet pipe. Cooling water inlet and outlet pipes are fixedly connected to the left and right sidewalls of the top of the cooling shell, respectively. The outer ends of the cooling water inlet and outlet pipes penetrate the sidewalls of the upper housing and extend to the outside. Two partitions are symmetrically and fixedly connected inside the cooling shell. An air outlet is detachably connected to the bottom of the air inlet pipe via a bolt assembly. A flow-slowing mechanism is provided inside the air inlet pipe. A middle housing is detachably connected to the bottom of the upper housing via a bolt assembly. An air outlet pipe and a liquid inlet pipe are fixedly connected to the sidewalls of the middle housing. A spraying mechanism is provided inside the middle housing. A lower housing is detachably connected to the bottom of the middle housing via a bolt assembly.

[0010] As a preferred technical solution of this utility model, the flow-slowing mechanism includes a support plate fixed inside the air outlet head, a vertical rod fixedly connected to the upper end face of the support plate, a set of first guide plates evenly fixedly connected to the vertical rod, a second guide plate provided on the lower side of each of the first guide plates, the second guide plates being fixedly connected to the vertical rod, and a flow-slowing channel being formed between the first guide plate and the second guide plate and the air inlet pipe.

[0011] As a preferred technical solution of this utility model, the spraying mechanism includes a spraying ring fixed inside the middle shell, a set of nozzles are uniformly fixedly connected to the inner side wall of the inner ring of the spraying ring, and an inlet pipe is fixedly connected to the outer side wall of the spraying ring, the outer end of the inlet pipe passing through the middle shell and extending to the outside.

[0012] As a preferred technical solution of this utility model, a drain pipe is fixedly connected to the center of the lower end face of the lower housing, a control valve is installed at the bottom end of the drain pipe, and an overflow pipe is fixedly connected to the side wall of the lower housing.

[0013] As a preferred technical solution of this utility model, an anti-foaming filter is fixedly connected to the outer peripheral sidewall of the cooling shell, and the anti-foaming filter is located on the lower side of the air outlet pipe.

[0014] As a preferred technical solution of this utility model, both the upper and lower ends of the middle shell are fixedly connected with sealing rings, and the sealing rings are provided with through holes that match the bolts in the bolt assembly.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In the solution of this utility model:

[0017] 1. By setting up an air inlet pipe, cooling shell, cooling water inlet pipe, cooling water outlet pipe, baffle, air outlet head and flow slowing mechanism, the flow speed of coal gas is effectively slowed down, so that the coal gas has enough time to exchange heat with the cooling shell in the air inlet pipe, thereby improving the cooling efficiency and effect and solving the problem of low cooling efficiency caused by the fast coal gas flow rate in the existing technology.

[0018] 2. By setting up an outlet head, a lower shell, and a spraying mechanism, the cooled coal gas discharged from the outlet head is washed once, and then the spraying mechanism washes the coal gas again, realizing two washing of the coal gas, improving the washing and purification effect, and solving the problem of poor washing effect in the existing technology. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 A schematic diagram of the internal structure of the cooling shell provided by this utility model;

[0022] Figure 4 A schematic diagram of the flow control mechanism provided by this utility model;

[0023] Figure 5 This is a front view structural diagram of the present invention;

[0024] Figure 6 Provided by this utility model Figure 4 A frontal view of the structure.

[0025] The image shows:

[0026] 1. Upper shell; 2. Air inlet pipe; 3. Cooling shell; 4. Cooling water inlet pipe; 5. Cooling water outlet pipe; 6. Baffle plate; 7. Air outlet head; 8. Flow control mechanism; 801. Support plate; 802. Vertical rod; 803. First guide plate; 804. Second guide plate; 9. Middle shell; 10. Air outlet pipe; 11. Liquid filling pipe; 12. Spraying mechanism; 1201. Spray ring; 1202. Spray nozzle; 1203. Liquid inlet pipe; 13. Lower shell; 14. Drain pipe; 15. Overflow pipe; 16. Defoaming filter; 17. Sealing ring. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this embodiment proposes a novel coke oven gas scrubbing cooler, including an upper shell 1. An air inlet pipe 2 is fixedly connected to the upper shell 1. A cooling shell 3 is fixedly connected to the outer peripheral side wall of the air inlet pipe 2. Cooling water inlet pipe 4 and cooling water outlet pipe 5 are fixedly connected to the left and right side walls of the top of the cooling shell 3, respectively. The outer ends of the cooling water inlet pipe 4 and cooling water outlet pipe 5 penetrate the side wall of the upper shell 1 and extend to the outside. Two partitions 6 are symmetrically and fixedly connected inside the cooling shell 3. An air outlet head 7 is detachably connected to the bottom end of the air inlet pipe 2 by a bolt assembly. A flow-slowing mechanism 8 is provided inside the air inlet pipe 2. A middle shell 9 is detachably connected to the bottom end of the upper shell 1 by a bolt assembly. The side wall of the middle shell 9 is... The middle shell 9 is fixedly connected to the gas outlet pipe 10 and the liquid inlet pipe 11. The middle shell 9 is equipped with a spraying mechanism 12. The bottom end of the middle shell 9 is detachably connected to the lower shell 13 through a bolt assembly. Cooling water enters the cooling shell 3 from the cooling water inlet pipe 4. Under the action of the partition 6, the cooling water flows in the cooling shell 3 along a specific path and exchanges heat with the coke oven gas in the gas inlet pipe 2, absorbing the heat in the gas. Then it flows out from the cooling water outlet pipe 5 to cool the gas. The gas outlet pipe 10 facilitates the discharge of the washed and cooled gas. The liquid inlet pipe 11 facilitates the addition of washing liquid to the lower shell 13. The gas outlet head 7 is funnel-shaped to increase the range of gas discharge and increase the contact area between the gas and the washing liquid.

[0029] like Figure 4 and Figure 6 As shown, in a preferred embodiment, based on the above method, the slow-flow mechanism 8 further includes a support plate 801 fixed inside the gas outlet head 7. A vertical rod 802 is fixedly connected to the upper end face of the support plate 801. A set of first guide plates 803 are evenly fixedly connected to the vertical rod 802. A second guide plate 804 is provided on the lower side of each of the first guide plates 803. The second guide plates 804 are all fixedly connected to the vertical rod 802. A slow-flow channel is formed between the first guide plate 803, the second guide plate 804 and the air inlet pipe 2. The coke oven gas enters from the air inlet pipe 2. The flue gas flows in the slow-flow channel formed by the first guide plate 803, the second guide plate 804 and the air inlet pipe 2, which can slow down the flow speed of the gas, so that the gas has enough time to exchange heat with the cooling shell 3 in the air inlet pipe 2, improve the cooling effect, and also facilitate subsequent washing treatment.

[0030] like Figure 1 and Figure 2As shown, in a preferred embodiment, based on the above method, the spraying mechanism 12 further includes a spraying ring 1201 fixed inside the middle housing 9. A set of nozzles 1202 are uniformly fixedly connected to the inner side wall of the inner ring of the spraying ring 1201. An inlet pipe 1203 is fixedly connected to the outer side wall of the spraying ring 1201. The outer end of the inlet pipe 1203 penetrates the middle housing 9 and extends to the outside. The washing liquid enters the spraying ring 1201 from the inlet pipe 1203, and then is uniformly sprayed out through the nozzles 1202 to form a water curtain, which fully contacts the coke oven gas that has been washed once, further washing away impurities and harmful substances in the gas and purifying the gas.

[0031] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, a drain pipe 14 is fixedly connected to the center of the lower end face of the lower housing 13, a control valve is installed at the bottom end of the drain pipe 14, and an overflow pipe 15 is fixedly connected to the side wall of the lower housing 13. By controlling the control valve on the drain pipe 14, the liquid and impurities in the lower housing 13 can be discharged periodically. When the liquid level reaches the height of the overflow pipe 15, the excess liquid will be discharged from the overflow pipe 15 to prevent excessive liquid from affecting the normal operation of the equipment.

[0032] like Figure 2 As shown, in a preferred embodiment, based on the above method, a defoaming filter 16 is further fixedly connected to the outer peripheral sidewall of the cooling shell 3. The defoaming filter 16 is located on the lower side of the gas outlet pipe 10. Foam may be generated during the gas washing and cooling process. The defoaming filter 16 can filter and eliminate these foams, prevent the foams from being discharged from the gas outlet pipe 10 with the gas, and ensure the quality of the gas output.

[0033] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, sealing rings 17 are fixedly connected to both the upper and lower ends of the middle shell 9. The sealing rings 17 have through holes that match the bolts in the bolt assembly. The sealing rings 17 can enhance the sealing between the upper shell 1, the middle shell 9 and the lower shell 13, prevent gas leakage and ensure the safe operation of the equipment.

[0034] Specifically, in use, the new type of coke oven gas scrubbing cooler works as follows: First, a measured amount of scrubbing liquid is added to the lower shell 13 through the liquid addition pipe 11. Coke oven gas enters through the inlet pipe 2, and the flue gas flows in the slow-flow channel formed by the first guide plate 803, the second guide plate 804, and the inlet pipe 2. Cooling water enters the cooling shell 3 through the cooling water inlet pipe 4. Under the action of the baffle 6, the cooling water flows in the cooling shell 3 along a specific path and exchanges heat with the coke oven gas in the inlet pipe 2, absorbing heat from the gas. Then... The gas flows out from the cooling water outlet pipe 5 to cool the coal gas. The cooled coal gas flows out through the gas outlet 7 and comes into contact with the washing liquid in the lower shell 13 to complete one washing. After washing, the coal gas flows upward. The washing liquid enters the spray ring 1201 from the liquid inlet pipe 1203 and then is evenly sprayed out through the nozzle 1202 to form a water curtain, further washing away impurities and harmful substances in the coal gas. Then the coal gas passes through the defoaming filter 16 to defoam the carried foam. The coke oven gas that has been washed and cooled is discharged through the gas outlet pipe 10.

[0035] All technical features in this embodiment can be freely combined according to actual needs.

[0036] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A new type of coke oven gas scrubbing cooler comprising an upper housing (1), characterized in that, An air inlet pipe (2) is fixedly connected to the upper shell (1). A cooling shell (3) is fixedly connected to the outer peripheral side wall of the air inlet pipe (2). A cooling water inlet pipe (4) and a cooling water outlet pipe (5) are fixedly connected to the top left and right side walls of the cooling shell (3), respectively. The outer ends of the cooling water inlet pipe (4) and the cooling water outlet pipe (5) pass through the side wall of the upper shell (1) and extend to the outside. Two partitions (6) are symmetrically and fixedly connected inside the cooling shell (3). An air outlet head (7) is detachably connected to the bottom end of the air inlet pipe (2) by a bolt assembly. A slow flow mechanism (8) is provided inside the air inlet pipe (2). A middle shell (9) is detachably connected to the bottom end of the upper shell (1) by a bolt assembly. An air outlet pipe (10) and a liquid filling pipe (11) are fixedly connected to the side wall of the middle shell (9), respectively. A spraying mechanism (12) is provided inside the middle shell (9). A lower shell (13) is detachably connected to the bottom end of the middle shell (9) by a bolt assembly.

2. A novel coke oven gas scrubbing cooler as claimed in claim 1, wherein, The flow control mechanism (8) includes a support plate (801) fixed inside the air outlet (7). A vertical rod (802) is fixedly connected to the upper end face of the support plate (801). A set of first guide plates (803) are evenly fixedly connected to the vertical rod (802). A second guide plate (804) is provided on the lower side of each of the first guide plates (803). The second guide plates (804) are all fixedly connected to the vertical rod (802). A flow control channel is formed between the first guide plate (803) and the second guide plate (804) and the air inlet pipe (2).

3. A novel coke oven gas scrubbing cooler as claimed in claim 1, wherein, The spraying mechanism (12) includes a spraying ring (1201) fixed inside the middle housing (9). A set of nozzles (1202) are uniformly fixedly connected to the inner side wall of the inner ring of the spraying ring (1201). An inlet pipe (1203) is fixedly connected to the outer side wall of the spraying ring (1201). The outer end of the inlet pipe (1203) passes through the middle housing (9) and extends to the outside.

4. A novel coke oven gas scrubbing cooler according to claim 1, characterized in that, A drain pipe (14) is fixedly connected to the center of the lower end face of the lower housing (13), a control valve is installed at the bottom end of the drain pipe (14), and an overflow pipe (15) is fixedly connected to the side wall of the lower housing (13).

5. A novel coke oven gas scrubbing cooler according to claim 1, characterized in that, A defoaming filter (16) is fixedly connected to the outer peripheral side wall of the cooling shell (3), and the defoaming filter (16) is located on the lower side of the air outlet pipe (10).

6. A novel coke oven gas scrubbing cooler according to claim 1, characterized in that, Both the upper and lower ends of the middle shell (9) are fixedly connected with sealing rings (17), and the sealing rings (17) have through holes that match the bolts in the bolt assembly.

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